VK 7-storey building

Contents

1. General part

1.1 Initial data:

1.2 Composition of the course work:

2. Water supply

2.1 Selection of water supply system and diagram

2.2 Water supply and water metering unit

2.3 Hydraulic calculation of internal water supply

3. Water disposal

3.1 Internal sewage system

3.2 Waste Water Receivers

3.3 Sewage risers

3.4 Sewage outlet

3.5 Calculation of sewage pipelines

3.6 Yard sewage system

3.7 Longitudinal profile of yard sewage network

4. Literature

1. Common part.

The present calculation and explanatory note solves the issues of designing the internal water supply and sewerage system of the 7-storey building.

1.1 Initial data:

1 Purpose of the building Residential house

2 Number of buildings 1

3 Number of sections 2

4 Building storey 7

5 Floor height, m 3

6 Occupancy, person/sq. 5,1

7 Basement height, m 2.05

8 Height of the floor of the 1st floor relative to the layout elevation, m 1.05

9 Thickness of floors in the building, m 0.3

10 Ground freezing depth, m 1.2

11 Warranty pressure, m water. Article 16

12 Diameter of the city water supply network, mm 300

13 Diameter of city sewage network, mm 300

14 Tray depth in sewer pit, m In place

1.2 Composition of the course work:

The course work includes: a calculation explanatory note and a design (graphic) part on the sheet in the format A1.

The calculation explanatory note should contain a cover sheet indicating all the student's output and his affiliation with the Moscow State University.

The explanatory note includes the following sections:

- general part, which contains the initial data, the purpose of the work, description and analysis of the design object;

-section devoted to internal water pipeline design with calculation data in the form of tables;

- section on internal sewerage system with calculation data in the form of tables;

The graphic part includes 6 drawings:

1. Plot plan (M 1:500) with city communications;

2. Ground floor plans (M 1:100);

3. Basement plan (M 1:100);

4. Axonometric diagram of the internal water supply system of the building (M 1:200 );

5. Internal sewerage axonometric diagram (M 1:200);

6. Longitudinal profile of yard sewage (Mg 1:500, Mv1: 100)

2. Water supply.

2.1 Selection of water supply system and diagram.

In this course work, only the cold drinking water supply system is designed in residential buildings, the hot water supply system is not considered.

The internal water supply system includes inlets to the building, water metering units, separation networks, supply to sanitary devices, pumping units, water separation, mixing, shutoff and control valves.

The choice of the internal water supply system was made taking into account technical economic, sanitary and hygienic and fire safety requirements, as well as the adopted external water supply system.

Since the building with a storey of less than 12 floors was considered, according to the SNiP recommendations, a dead end network scheme with the lower wiring of an internal cold water pipeline with one inlet was adopted.

Water-supply risers are placed together with sewage risers in mines when using factory-made sanitary and technical cabins.

2.2 Water supply and water metering unit.

Water supply pipes are laid at a distance of 12 m from the CTP, at an angle of 900 to the wall, with a slope of i = 0.002 to the city water supply. The inlet is mounted from a 50 mm diameter steel pipe with corrosion-resistant insulation applied to it (GOST 326275).

The pumping unit, water metering unit together with other engineering equipment are located in the central heat station (CTP).

The main pipelines are laid along the capital walls with a slope towards the inlet.

3. Drainage.

3.1 Internal sewage system.

In this course work, the internal sewerage system includes an axonometric diagram of the internal sewage system, which consists of sewage receivers, sewage drains and outlets.

The sewer network sections should be laid in a straight line, aiming for shorter sections, with the installation of leaks at the points of turns and at the starting points of pipelines. For connection to the riser of branch pipelines located under the ceiling, in basements and technical underground, oblique crosses and tees should be provided. Drain sewage pipes are laid to the risers under the floor.

3.2 Waste Water Receivers.

Sanitary devices are connected to the drain pipeline by means of hydraulic gates (siphons). Drain sewage pipes are laid to risers above the floor. The diameter of the branch pipelines is assigned depending on the diameter of the largest outlet of the connected devices. The diameter of the toilet outlet is 100 mm slope i = 0.02, for all other devices - 50 mm slope i = 0.025.

3.3 Sewage risers.

The building contains 8 sewage risers. Sewage risers are located near receivers of sanitary devices. The diameter of the sewage risers is 100 mm. Sewage risers are combined into 4-mm outlets, 150 mm outlet diameter.

On risers at a height of 1 m from the floor, revisions are installed on the first, last floor and every two floors. Cleaners are installed at outlets and discharge pipelines where clogging is possible. The exhaust part of the riser is brought to the roof. The diameter of the exhaust part is equal to the diameter of the riser.

3.4 Sewer extension.

All waste water is removed from the building through 2 outlets. At the point of connection of the issues to the yard network, an observation well is installed. The length of each of the outlets from the wall to the axis of the inspection well is 3.0 m. The diameter of the outlets is 150 mm. Issues are directed towards the main facade.

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