Construction plan, drawings and explanatory

Contents

Contents

P

1. Explanatory Note

1.1 Summary of the construction site

1.2 Characteristics of construction conditions

1.3 Organizational and technological diagram of works execution

1.4 Construction duration

1.5 Selection of crane for loading and unloading and construction and installation works

1.6 Methods of basic construction and installation works

1.7 Occupational Safety and Safety Measures

1.8 Fire fighting measures

1.9 Environment Conservation Conditions

1.10 Material Storage Areas

1.11 Quality Control

Technical and economic indicators of the project

2. Need for construction machines and machinery

3. Stroygenplan sheet

1. Explanatory Note

Summary of Construction Site

In this project, according to the design task, the Modernization of the existing alcohol storage facility is provided. The facility is located on the territory of the existing enterprise. The terrain is calm, characterized by contours 151.00 - 159.00.

Characteristics of construction conditions

Construction and installation works will be carried out by a contractor defined on a tender basis.

Construction of structures and materials is provided by the contracting organization. They are delivered by road.

The provision of construction personnel is provided at the expense of the contracting organization.

Construction supply is provided by:

- compressed air - from mobile compressor of ZIF55 type;

- heat - from heating devices of factory manufacture;

- water - from existing water supply networks;

- electricity - from the existing networks of the enterprise.

Methods of production of main construction and installation works

Before the start of the preparatory period, the construction site as a whole should carry out the organizational measures provided for by TKP 451.03-161-2009 "Organization of Construction Production."

Detailed methods of works execution with indication of mechanism operation scheme, labor costs, composition of teams, required accessories, equipment, etc. shall be developed in the work execution project (WP).

Construction is carried out taking into account the complex mechanization of repair, construction and installation works and advanced technology.

The reconstruction of the building is divided into two periods: preparatory and main.

Preparatory period.

The preparatory period provides for:

- construction of the construction site;

- installation of temporary buildings and structures;

- arrangement of protective fencing around preserved green plantings;

- supply of communications.

Before the start of the preparatory period, the work manufacturer must receive all the necessary documentation for the object, the approved work execution project, estimates, work order for the work. All technical personnel, crews must be familiarized with design solutions and safe operation methods before commencing work.

During the preparatory period, manufacturers of works and craftsmen should carefully study the design estimates.

In the area of ​ ​ the mechanisms, power lines, telephone and radio broadcasting networks, and all cable lines are removed or moved. At the completion of these measures, inventory boards and materials for the installation of temporary fences (fences), sidewalks (walks) and temporary warehouse buildings are delivered to the site. At the same time, the required equipment, electrified and manual tools, devices and mechanisms provided for by the project of work shall be brought to the site. Lifting and transport mechanisms shall be mounted and tested. During the same period, electricity, water and compressed air are supplied to sources of consumption.

The main construction work is allowed to start only after the completion of the preparatory period.

Main period.

The works of the main period shall be performed in compliance with the technological sequence developed in the work execution project, and shall also be performed in accordance with the requirements of regulatory documents, standard process charts, requirements of existing documents on safety, fire safety, industrial sanitation and labor protection.

1.7.1 Earthworks

In order to prevent soil erosion, formation of landslides, collapse of excavation walls at excavation sites, it is necessary to ensure removal of surface and underground water before their start.

The place of work should be cleaned of boulders, trees, construction debris.

During earthworks it is necessary to fulfill the requirements of TKP 455.01-254-2012.

In the event of detection of communications, underground structures not specified in the design or explosive materials during the performance of work, earthworks must be suspended until permission is obtained from the relevant authorities.

In winter, excavation with shovels can be carried out only after it is heated. In this case, the heat source is allowed to approach the cables by at least 0.15 m.

When the work is suspended, the excavations made must be covered with protective covers.

1.7.2 Reinforcement and formwork

The following works shall be performed prior to the foundation reinforcement installation:

- delivery and storage of required number of reinforcement elements to the work area;

- preparation for operation of rigging equipment, tools and electric welding equipment.

Installation of reinforcement begins with marking of grid laying places and installation of fixators with spacing of 1 m to form a protective layer of concrete.

Spatial frames are assembled on the assembly site. The installed reinforcement shall be accepted prior to concrete laying and executed by a concealed works inspection certificate.

After installation, formwork is given permission for concreting.

The following works shall be performed prior to the start of formwork installation:

- installation of rebar grids and frames;

- check of completeness of imported formwork;

- pre-assembly of boards.

The installed formwork shall meet the following requirements:

- compliance of forms and geometric dimensions of the formwork with working drawings;

- alignment of formwork axes with layout axes of structures and structures;

- accuracy of elevations of individual formwork planes or leaders on formwork planes;

- vertical and horizontal formwork planes;

- correctness of installation of embedded parts, plugs, etc.;

- correct installation of locks, braces and braces;

- density of joints and conjugations of formwork elements with previously laid concrete;

- correctness of cutoff devices in working seams.

Formwork - frame frame shield. Shields of smaller sizes can be used as additional elements. For small-sized structures, small-scale formwork should be used, and for complex configuration in plan and height, individual woodwork formwork can be used.

Fracturing shall be carried out in ways that prevent damage to the surface of concrete of monolithic structures. The formwork should be removed only after its preliminary separation from concrete.

During concreting of structures, it is necessary to monitor the displacement of the formwork and, if necessary, take measures to eliminate it.

All corrections of formwork defects shall be made prior to concrete setting.

Measures for formwork arrangement and control over their implementation must be carried out in accordance with the requirements of TKP 455.03-23-2006.

1.7.3 Masonry works

During brickwork of external and internal walls and partitions comply with the requirements of TKP 455.02-82-2010, working drawings of the project.

To carry out work on brickwork of walls, the building in the plan is divided into grips, and vertically each grip is divided into tiers. Each tier is laid out 1015 cm above the scaffold level of the next tier or the top of the floor slabs.

The thickness of horizontal masonry seams of brick and stones of regular shape should be 12 mm, vertical seams - 10 mm.

In case of forced breaks, masonry must be performed in the form of an inclined or vertical stroke .

When breaking the masonry with a vertical strap, a mesh (reinforcement) made of longitudinal rods with a diameter of not more than 6 mm, of transverse rods - not more than 3 mm with a distance of up to 1.5 m in masonry height, as well as at the level of each slab, should be laid in the joints of masonry.

The number of longitudinal reinforcement rods is taken on the basis of one rod for every 12 cm of wall thickness, but not less than two at wall thickness of 12 cm.

The height difference of the erected masonry on adjacent grips and when laying the joins of the external and internal walls should not exceed the height of the floor .

Erection of stone structures of the next floor is allowed only after laying of load-bearing structures of floors of the erected floor, anchoring of walls and grouting of seams between slabs.

Vertical verticality of faces and angles of masonry made of brick and stones, horizontality of its rows must be checked in the course of masonry (after 0.50.6 m) with elimination of detected deviations within the tier.

Horizontal and transverse seams of brickwork of walls, as well as seams (horizontal, transverse and longitudinal vertical) in lintels, spacers and pillars should be filled with mortar, with the exception of masonry.

During masonry, the depth of the seams not filled with mortar on the front side shall not exceed 15 mm in the walls and 10 mm (vertical seams only) in the pillars.

Ventilation ducts in the walls should be made of ceramic full-white bricks of grade not lower than 75 or silicate grade 100 to the level of the attic floor, and above - of full-white ceramic bricks of grade 100.

After the masonry of each floor, you must perform a instrumental check of the horizontal and elevation of the top of the masonry, regardless of the intermediate checks of the horizontal of its rows.

When laying walls in hot and dry weather at an air temperature of 25 g. C and above from stone materials with water release up to 15%, it is necessary to moisten the brick and stones with a minute exposure before laying.

In case of interruptions in operation, do not lay the solution on the upper row of the masonry, and cover the boxes with the solution with shields. After a break, the masonry must be moistened.

Maintenance of the completed masonry in hot and dry weather should be carried out according to the recommendations of the construction laboratory.

Workplaces and passages to them located on floors, coatings at a height of 1.3m or more and at a distance of less than 2m from the difference in height must be with safety or safety protective fences as per GOST 12.4.059.

1.7.4 Concrete works

The following works shall be performed before the concrete mixture is laid:

- correctness of installed reinforcement and formwork was checked;

- all formwork defects are eliminated;

- the presence of retainers ensuring the required thickness of the protective layer of concrete was checked;

- all structures and their elements concealed during concreting are accepted by act;

- formwork and fittings are cleaned of debris, dirt and rust;

- check of all mechanisms operation, serviceability of accessories and tools.

Delivery of concrete mixture to the object is provided in concrete mixers. When constructing foundations, work is carried out according to the "cranbadya" cycle using a crane, using concrete pumps or feeding it through a tray from an auto-concrete mixer. It is allowed to transport concrete in specially equipped dump trucks. The gap between the laying of concrete mixture layers must be at least 40 minutes, but not more than 2 hours.

Concrete mixture is laid in layers of thickness from 30 to 40 cm. Concrete mixture is compacted by depth vibrators. The working part of the vibrator is immersed in a previously laid layer of concrete for 510 cm. In the corners and at the walls of the formwork, the concrete mixture is additionally compacted by vibrators or by bayoneting with hand drills. It is not allowed to support vibrators during operation on fittings.

Vibration at one position ends when subsidence is stopped and cement milk appears on the concrete surface. Remove the vibrator during the rearrangement slowly, without turning off the engine, so that the void under the tip is evenly filled with concrete mixture.

After laying concrete in the formwork, it is necessary to create favorable temperature-moisture conditions for its hardening. After concrete reaches the required strength, the formwork is dismantled.

During concrete works special attention should be paid to compliance with requirements of TKP 455.03-131-2009 "Cast-in-situ concrete and reinforced concrete structures. Rules of erection. "

Concrete care measures during the period of strength, procedure and terms of their implementation, control over their implementation must be carried out in accordance with the requirements of TKP 455.03-131-2009 and the Manuals to Construction Codes and Rules P22000 to SNiP 3.03.0187 "Concrete Work at the Construction Site."

1.7.5 Roofing works

Admission of employees to the roof of the building for roofing and other work is allowed after inspection by the foreman (foreman) together with the foreman (responsible executor) of the load-bearing structures of the roof and fences.

Climb and descend from the roof only through the internal staircases and staircases equipped for lifting to the roof.

Fire ladders shall not be used for this purpose.

For the passage of workers performing work on a roof with a slope of more than 20 °, as well as on a roof with a coating not designed for loads based on the weight of the workers, it is necessary to use ladders with a width of at least 0.3 m with transverse slats to rest the legs. Ladders shall be fixed during operation.

When performing work on roofs with a slope of more than 20 °, as well as at a distance of less than 2 m from unfreezed differences in height of 1.3 m or more, regardless of the roof slope, employees must use safety belts. Places of safety belts attachment are specified in the PPM and work permit.

Lightweight cranes used for the supply of materials for roofing shall be installed and operated in accordance with the manufacturer's instruction. Lifting should be carried out in containers or packagings.

Near the building in places of cargo lifting and roofing works it is necessary to designate hazardous areas, the boundaries of which are determined in accordance with Appendix B of TKP 451.03-40-2006.

It is allowed to place materials on the roof only in the places provided for by the PPM, using measures against their fall, including from the wind.

The material stock must not exceed the replacement requirement.

During interruptions in operation, process accessories, materials and tools shall be fixed or removed from the roof.

Roofing works are not allowed during ice, fog, which excludes visibility within the work front, thunderstorms and at wind speed of 15 m/s or more.

Elements and parts of roofs, including compensators in seams, protective aprons, drain pipe links, drains, overhangs, etc., should be submitted to workplaces in finished form.

Procurement of the specified elements and parts directly on the roof is not allowed.

Roofing works on installation (suspension) of finished gutters, funnels and pipes, caps and umbrellas for smoke and ventilation pipes, coating of parapets and sandriks, finishing of overhangs should be carried out using scaffolding, cradles, automobile lifts. Organization and execution of works using lifts shall meet the requirements.

Do not use stairs for specified works.

1.7.6 Harvesting and assembly of wooden structures

When assembling (installing) wooden structures, in addition to the requirements of this section, the requirements of the existing TNAP shall be taken into account. When using a mechanized tool, refer to the requirements of Section 8 of TKP 451.03-40-2006. Woodworking shall be guided by the requirements of the Intersectoral General Rules for Labor Protection.

GOST 12.3.034 shall be used for antisepting and fire-retardant treatment.

Laying of beams of intermediate and attic floors, sheeting of ceilings, as well as laying of slopes should be carried out from scaffolding.

It is forbidden to perform the specified works from stairs.

To install wooden structures and perform other types of work, it is necessary to lay temporary flooring on beams of intermediate and attic floors.

Panels or boards of temporary floorings must be connected directly, and places of their connection should be located along axes of beams.

The subassemblies must be delivered to the assembly site as finished. It is forbidden to procure structures on scaffolds and erected structures (except for fitting of parts in place).

Scaffolds from which wooden structures are installed cannot be supported by these structures until they are finally fixed.

Antiseptic and fire retardant compositions should be prepared in separate rooms

with forced ventilation. Access of unauthorized persons to the places of preparation of these compositions is prohibited.

Antisepting of structures during any work in adjacent rooms or during adjacent work in one room is not allowed.

1.7.7 Dismantling of buildings and structures

Prior to commencement of work on disassembly of buildings (structures), it is necessary to carry out preparatory measures related to the resettlement of citizens living in them or the departure of organizations located there, as well as to disconnection from the networks of water, heat, gas and power supply, sewage, process product pipelines and taking measures against their damage .

All necessary approvals for preparatory activities should be made at the PIC development stage.

Disassembly of buildings (structures) must be carried out on the basis of decisions provided for in organizational and technological documentation (PIC, PPR, etc.). These solutions shall be developed after the general condition survey of the building (structure), as well as foundations, walls, columns, arches and other structures. Based on the results of the survey, an act is drawn up on the basis of which the following issues are resolved:

- selection of disassembly method;

- establishment of work sequence;

- The establishment of hazardous areas and the use, if necessary, of protective barriers;

- temporary or permanent fixation or reinforcement of structures of the dismantled building in order to prevent accidental collapse of structures;

- dust suppression measures;

- safety measures during operation at altitude;

- slinging diagrams during removal of structures and equipment.

Before starting work, it is necessary to familiarize employees with the solutions provided for in the PPR and instruct on safe methods of work.

Removal of unstable structures during disassembly of the building should be carried out in the presence of the work manager.

When dismantling buildings, access to them by persons not participating in the work is prohibited. Sections of works on disassembly of buildings (structures) must be protected in accordance with the requirements of 6.2.1 of TKP 451.03-40-2006.

The passage of people to the premises during disassembly should be closed.

When disassembling buildings (structures) by a mechanized method, it is necessary to install areas dangerous to people, and place machines (mechanisms) outside the structure collapse zone.

The driver's cab must be protected against possible ingress of breakaway particles, and the workers must be provided with protective glasses.

During disassembly of buildings (structures), as well as during waste removal, it is necessary to apply measures to reduce dust formation.

Dust-free equipment shall be provided to protect the respiratory organs from airborne dust and microorganisms (mold, fungi and spores).

Before allowing workers to work in places with the possible appearance of gas or harmful substances, they must be ventilated. In case of unexpected appearance of gas, work should be stopped and workers should be removed from the danger zone.

Operating in places with the possible appearance of gas must be provided with personal protective equipment (gas masks).

Disassembly of buildings (structures), removal of structures must be performed sequentially from top to bottom.

It is prohibited to disassemble buildings (structures) simultaneously on several tiers along one vertical line.

During disassembly of buildings (structures), it is necessary to leave passages to workplaces. When disassembling the roof and external walls, workers must use safety belts.

When disassembling the eaves and hanging parts of the building, it is forbidden to be on the wall.

It is not allowed to perform works during ice, rain, fog, which excludes visibility within the work front, thunderstorms and at wind speed of 15 m/s or more.

When disassembling buildings (structures), it is necessary to prevent spontaneous collapse or fall of structures.

Unstable structures located in the work area should be removed or fixed or reinforced according to the WP.

It is forbidden to cut chimneys, stone pillars and spacers manually, as well as to collapse them on the floors.

When disassembling buildings by the "roll" method, the length of the attached cables (ropes) should be 3 times the height of the building.

When disassembling buildings using an explosive method, it is necessary to comply with the requirements of the Uniform Safety Rules for Explosive Works.

When removing structures and equipment using lifting cranes, it is necessary to comply with the requirements of sections 10 and [4].

Slinging diagrams of the structures to be removed shall correspond to those specified in the PPM.

Materials obtained from disassembly of buildings (structures), as well as construction debris, must be lowered along closed troughs or in closed boxes or containers using lifting cranes. The lower end of the trough shall be not more than 1 m above the ground or enter the hopper .

It is allowed to dump garbage without troughs or other devices from a height of not more than 3 m. Hazardous areas in these places must be protected. Boundaries of hazardous area are set in accordance with Appendix B of TKP 451.03-40-2006.

Materials obtained during disassembly of buildings (structures) must be stored on specially designated sites.

1.7.8 Daylight saving time

Perform construction and installation works in winter, including taking into account the requirements described by the codes of established practice of TKP 451.03-40-2006 "Labor safety in construction. General Requirements "and TKP 451.03-44-2006" Labor Safety in Construction. Construction Production, "approved and put into effect by order

Ministry of Architecture and Construction of the Republic of Belarus dated November 27, 2006 No. 334.

So, when organizing production territories, work areas and workplaces, it is necessary to remember that passages, passages in production territories, as well as passages to workplaces and workplaces should be kept clean and orderly, cleaned of garbage and snow, not cluttered with stored materials and structures.

Production territories and areas of work in settlements or on the territory of the organization should be fenced to avoid access by unauthorized persons, while protective fences adjacent to places of mass passage of people should have a height of at least 2 m and be equipped with a continuous protective visor, which should withstand the effect of the calculated snow load, as well as loads from the fall of single small objects.

For outdoor workers, canopies should be provided for shelter from atmospheric precipitation.

When the air temperature at workplaces is below 10 ° С, open air or unheated rooms shall be provided with heating rooms.

In this regard, it should be noted that the employer must provide workers with sanitary facilities (dressing rooms, dryers for clothes and shoes, showers, rooms for eating, relaxing and heating, health centers, etc.). Preparation for operation of sanitary facilities and devices for the construction site should be completed before the start of the main construction and installation works.

In the heating room, a device for quick warming of workers, titanium or reboilers, hangers for clothes and devices for quick (from 10 to 15 minutes) drying of hoses is installed. The meal room shall be equipped with washbasins, reboilers, electric stoves and refrigerators. Heating and ventilation installations in rooms for drying clothes and shoes shall provide drying of working clothes and special shoes for a time not exceeding the duration of one working shift.

Buildings and premises for domestic use on the construction site shall be equipped with water supply, sewage, electric lighting, heating and ventilation. Electrical installations of mobile buildings made of metal or having a metal frame must comply with GOST 3033995 "Power supply and electrical safety of mobile (inventory) buildings made of metal or with a metal frame for street trade and consumer services. Technical requirements. "

For heating of domestic buildings, it is allowed to use tubular electric heaters of factory manufacture, regardless of their installed capacity. In accordance with the state fire supervision and state energy supervision bodies, other factory-made electric heating devices with a capacity of up to 10 kW are allowed in domestic buildings.

It is not allowed to install homemade electric heating devices, fluorescent lamps, as well as grids, grids and other devices that prevent the free (without the use of tools) opening of doors and window doors from the inside in buildings of mobile and container type.

The peculiarities of certain types of work in winter should be discussed in more detail.

Installation (dismantling) of machines installed in the open air is not allowed to be performed in ice, fog, snowfall, thunderstorm, at air temperature below or at wind speed above the limits specified in the machine certificate.

Scavenging means are subject to additional inspection after rain, wind, thaw, which may affect the bearing capacity of the base beneath them, as well as the deformation of their bearing elements. In case of detection of violations related to bearing capacity of the base or deformation of scavenging means, these violations must be eliminated and scavenging means must be re-adopted in the manner established in sub-item 8.4.15 of item 8 of TKP 451.03-40-2006.

Descents and lifts of platforms for loading and unloading operations in winter should be cleaned of ice and snow and sprinkled with sand or slag.

The movement of vehicles on the ice of rivers and reservoirs is allowed only along specially marked routes with signs of the maximum permissible carrying capacity of the ice crossing. Traffic shall be carried out at open doors of the driver's cab. At the same time, there should be no people in the vehicle (with the exception of drivers). The date of opening and termination of traffic on the ice crossing is set by the head of the organization in charge of the crossing. On the ice road it is forbidden: to refuel cars with fuel and lubricants in order to avoid the destruction of the road, to drain hot water from the cooling system onto the ice, to change the traffic route arbitrarily.

During snowfall, rain, welding work in the open air should be stopped.

Excavations developed in winter, when a thaw occurs, must be inspected and measures taken to ensure the stability of slopes or fasteners. Boulders and stones and soil peels found on slopes shall be removed.

In winter, excavation with shovels can be carried out only after it is heated, while approaching the heat source to the cables is allowed to be at least 0.15 m.

In the case of electrical heating of the soil, the voltage of the power supply should not be higher than 380 V. The heated area of ​ ​ the soil should be protected, safety signs should be installed on the fence, and illuminated at night. The distance between the fence and the contour of the heated section must be at least 3 m. Workers and other persons are not allowed to stay on the heated section.

Temporary power supply lines to heated soil areas shall be made by insulated wire, and after each movement of electrical equipment and wiring transfer insulation resistance shall be measured by megammeter.

During electrical heating of concrete, installation and connection of electrical equipment to the supply network shall be performed only by electricians having an electrical safety group not lower than III.

Insulated flexible cables or wires in the protective hose shall be used in the area of electrical heating. It is not allowed to lay wires directly on the ground or on the sawdust layer, as well as with disturbed insulation.

The electrical heating zone of concrete shall have a protective fence, light alarm, safety signs and be under round-the-clock supervision of electricians installing the electrical network. Stay of these employees and performance of works in these areas is not allowed, with the exception of works performed along with admission in accordance with the requirements of item 4.11 of item 4 of TKP 451.03-40-2006.

Open (non-concrete) reinforcement of reinforced concrete structures connected to the section under electrical heating shall be grounded (suspended).

After each movement of the electrical equipment used for concrete heating to a new place, the insulation resistance should be measured and the condition of the protective equipment, barriers and grounding should be visually checked.

When using a concrete mixture containing chemical additives, the following requirements should be met:

exclude the possibility of contact of open areas of human skin and eyes with a concrete mixture having additives with harmful substances (C3 thinner, sodium nitrite, calcium nitrite nitrate, etc.);

provide employees with personal protective equipment (protective gloves and glasses);

avoid application of electric heating of concrete mixture containing liquid hydrophobizing 13641, as well as solutions of silicon powder of organic or aluminium powder.

The filler loaded into the boiler for cooking and heating bituminous mastic must be dry. It is unacceptable to get ice and snow into the boiler. Filling of bitumen boiler is allowed not more than 3/4 of its capacity.

Cleaning of structural elements to be installed from dirt and ice must be performed before their lifting.

When heating the cable with electric current, it is not allowed to use voltage higher than 380 V. The enclosures of electrical machines used for heating at voltage higher than 50 V, as well as the metal sheath of the cable must be grounded. Fire fighting equipment shall be placed in the heating areas and duty shall be established.

Plastic pipes with frozen product can only be heated with water with a temperature of not more than 40 ° C, and pipelines made of high pressure polyethylene, fluoroplastic and polyvinyl chloride - not more than 60 ° C. Steam or fire heating of these pipelines is not allowed.

When using air heaters (electric or liquid fuel) to dry rooms, buildings (structures), it is necessary to comply with the requirements of the Fire Safety Rules of the Republic of Belarus PPB RB 2.092002 "Fire rationing and standardization system. Fire Safety Rules of the Republic of Belarus for Construction and Installation Works, "approved by Order No. 191 of the Chief State Inspector of the Republic of Belarus for Fire Supervision dated November 14, 2002. It is forbidden to heat and dry the rooms with roasters and other devices that release fuel combustion products into the rooms.

When performing painting operations using paint pneumatic units, the frozen hoses should be heated in a warm room. Do not heat hoses with open fire or steam.

The glass shall be cut horizontally on special tables at a positive temperature.

It should be noted that it is forbidden to perform work on masonry or lining of external walls of multi-storey buildings, insulation, roofing, installation work at a height in open places, as well as work on disassembly of eaves and hanging parts of the building during ice, fog, excluding visibility within the work front, thunderstorms and at wind speed of 15 m/s or more.

Material Storage Areas

Materials, equipment should be placed on leveled tamped sites, and in winter on cleared snow and ice. Surface water removal shall be arranged from storage areas by means of drainage channels.

In the warehouse between stacks, passages with a width of at least 1.0 m should be left, and when vehicles move through the storage area, passages with a width of at least 3.5m.

It is necessary to store the products in stacks by the same marks. Stacks shall be provided with plates facing the passage indicating the quantity and type of articles.

Linings and packs in stacks should be placed in one vertical plane near the mounting hinges, and their thickness during storage of panels, blocks, etc. should be more than protruding mounting hinges by 20 mm. The use of circular gaskets when storing building materials in a stack is prohibited.

When performing work on a stack with a height of more than 1.5 m, it is necessary to use portable inventory stairs.

Do not lean (rest) materials and articles against fences and elements of temporary and capital structures.

The distance from the stacks of materials and equipment to the edges of the recesses (pits, trenches) should be assigned by calculation for the stability of the slopes (attachment), as a rule, outside the prism of collapse, but not less than 1.0 m from the edge of the natural slope or the attachment of the recess.

Rolled steel, steel cuttings, reinforcement nets, dry plaster sheets, mineral wool slabs, carpentry should be stored under a canopy.

Pulverized materials should be stored in stalls, silos and silos, loose materials (Fig.15) - in stacks with slopes: sand 1:2, crushed stone 1: 1.5 .

Store materials and products not closer than 3.5 m from the building under construction.

Quality Control

Quality control of construction and installation works is carried out on the basis of the current legislation, SNiP, project requirements and other regulatory documents, standards .

During construction, the following types of quality control shall be carried out:

Incoming control - quality check of design and estimate documentation of construction materials and products coming to the construction site. Manufacturers of works (craftsmen) shall check by means of external inspection the conformity of the quality of structures, products and materials coming to the construction site to the requirements of working drawings, technical specifications and standards.

Self-control - is carried out by foremen, links and workers in the course of work before their presentation to the foreman or foreman.

Operational control - is carried out after completion of production operations for construction processes and ensures timely detection of defects and causes of their occurrence, as well as timely adoption of measures to eliminate and prevent them.

During operational inspection, the following shall be checked:

compliance with technology of construction processes execution;

compliance of performed works with working drawings, SNiP and standards.

Operational control shall be carried out by craftsmen and foremen with the involvement of construction laboratory and geodetic service, if necessary.

Acceptance control - is carried out in order to check and evaluate the quality of completed construction enterprises, buildings and structures for their parts, as well as hidden works and individual critical structures.

The following documentation shall be provided during acceptance inspection:

as-built drawings with deviations (if any) approved by the structural manufacturer, as well as installation organization, agreed with the design organizations-developers of the drawings, and documents on their approval;

factory technical certificates for steel and reinforced concrete structures;

documents (certificates, passports) certifying the quality of materials used in construction and installation works;

acts of examination of hidden works;

certificates of intermediate acceptance of critical structures;

as-built geodetic diagrams of structures position;

work logs;

documents on quality control of welded joints;

acts of structural testing (if the tests are provided by the applicable codes and regulations or working drawings);

other documents specified in applicable codes and regulations or working drawings.

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