Job Instruction for Installation of Cast Iron Pipeline D = 600 - Heading

Contents

1. Application area

2. Construction of longitudinal and transverse profiles of the trench

2.1. Longitudinal Profile Design

2.2. Cross Profile Design

3. Specification of Main Materials and Load Handling Mechanisms

4. Selection of equipment for pipeline installation

5. Definition of Scope of Work

5.1.Define Pipeline Erection Scope

5.2.Defining of sump development scope

5.3.Define Scope of Work for Piping Filling

6. Organization and technology of the construction process

7. Pipeline Laying Process

8. Operational Quality Control Diagram

9.Recalculation of machine time and wage costs

10. Work Schedule

11. Identification of logistical requirements

12. Determination of technical and economic indicators

13. Organization and working methods of workers

14. Organization of installation works

15. Work Safety Measures

Bibliographic list

Scope of Application

This Job Instruction provides laying of pipeline with depth of 3.1-5.0 m for installation of pressure cast iron pipeline with diameter Dn = 600mm and length of 700m. The pipes are laid in the soil of group I (coarse sand) through one pipe with an arrow self-propelled car crane KS2561, a link of installers consisting of 5 people, when working in one shift for 19 days. The work is carried out in the summer (construction began on June 2). The construction area is the city of Ivanovo.

Organization and technology of the construction process

Before the pipeline shall be laid

the following works were performed:

a) trench developed;

b) temporary roads are laid and temporary electric lighting is performed;

c) sets of the water step-down LIU6/LIU-5/installation with a performance of 120 м^З/час, a pressure of 40 m are delivered and laid along the pipeline route;

d) the axis of the pipeline route is broken and fixed in kind;

e) the axis and boundaries of the pipeline with the installation are broken

in the trench of pegs with the elevation of the bottom of the pipes in 2030 m;

f) a three-day supply of pipes, installation machines, tools, equipment, accessories and other materials was brought in;

g) storm water removal is provided;

h) water reduction to the level - 7.0 m;

and ) the slope of the planned bottom of the trench was checked by the sighting along the top of the rings.

Organization of installation works

1. When installing reinforced concrete and steel elements of structures, pipelines and equipment, it is necessary to provide measures to prevent the impact on workers of hazardous and harmful production factors related to the nature of the work:

a) location of workplaces near the drop in height of 1.3 m

and more;

b) moving structures, weights;

c) fall of higher materials, tools;

2. In the presence of hazardous and harmful production factors, the safety of installation works should be ensured on the basis of the implementation of the following labor protection decisions contained in the organizational and technological documentation (PIC, PPR, etc.):

a) determination of crane grade, installation site and hazardous areas

during its operation ;

b) ensuring the safety of workplaces at altitude;

c) determination of structure installation sequence;

3. In the area where installation works are carried out, it is not allowed to perform other works and find unauthorized persons.

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