What are the construction process requirements for sewage buried pipelines?

This question should be selected according to the composition of the pipeline effluent.

First, according to the composition of the sewage in the sewer line.

Second, according to the geological conditions of the sewage pipeline installation.

Thirdly, the material of the selected sewage pipeline, if the composition of different sewage is financially permitted, there are many materials of pipeline to choose from.

Fourth, the direction of the pipeline should be to follow the trend so that the sewage can flow out smoothly.

Fifth, production sewage and domestic sewage should be strictly separated, and they cannot and are not allowed to be shared.

Sixth, the installation depth of sewage pipelines should not be less than 1 meter.

Seventh, in order to prevent the blockage of sewage pipelines, one sewage well should be installed every 25 meters.

Eighth, at the entrance of the sewer pipeline, in order to prevent dirt from entering, a screen to prevent dirt should be installed.

Ninth, according to the location, the bearing requirements should be considered, and the tonnage requirements should be considered.

Tenth, seal the pipeline connection to prevent leakage.

Eleventh, sewage pipelines should not be parallel to drinking water pipelines such as tap water pipelines, and the distance between pipelines should not be less than 5 meters.

The construction of subgrade fill lot, pipeline and inspection well, and subgrade filling cooperate with each other, when the subgrade filling is higher than the top of the sewage pipe, first open a trench, bury the sewage pipeline and the inspection well, and then continue to construct the subgrade. When the subgrade is filled to gradation.

When the bottom surface of the gravel layer is elevated, the rainwater pipe and inspection well are constructed. Mechanical excavation pipe trench, slope 1:. Subgrade excavation section, road trench excavation, digging pipeline trench, sewage and rainwater pipeline and inspection well construction.

Mechanically excavated pipe trench, slope 1:, mechanical hoisting pipe in place.

After the trench excavation of the pipeline, the bearing capacity of the trench foundation must be measured, and the determination is determined by the heavy-duty compaction method, and the concrete cushion can be poured only after the foundation bearing capacity meets the design requirements, if the bearing capacity of the foundation does not meet the design requirements, it must be treated in the way of backfilling the gravel cushion, and the bearing capacity of the foundation is determined after treatment. Measurement pay-off, rain and sewage pipeline lines, set up central piles every 20m, drainage pipeline pay-offs, set up central piles every 10m. The central pile should be set at the pipeline inspection well and the place where the pipe diameter is changed, and the pile guard or control pile should be set up if necessary.

After the drainage pipeline is leveled, the longitudinal section of the pipeline should be drawn and the water pipeline measurement work should be measured, and there should be a formal measurement record book, which should be carefully recorded in detail.

After measuring the bearing capacity of gravel cushion to meet the requirements, the formwork will be supported on the cushion according to the design requirements, and the concrete sleeper foundation is poured, and the concrete adopts C15 concrete, and the concrete can carry out the pipe laying work only after reaching the design strength.

After the concrete of the pillow foundation reaches the design strength, the pipe is hoisted onto the pillow foundation, and its position is fixed with red bricks.

Ensure that the center lines of the two pipelines are consistent, ensure that the pipeline axis is in the same straight line, and do not allow the pipeline center lines to be staggered.

After the pipeline is laid out, the pipeline interface line and the template installation line are marked on the pillow foundation, the template must be reinforced when the template is erected, and measures are taken to prevent the template from leaking, and the steel wire mesh should be fixed on the concrete pipe according to the design requirements when the pipeline interface construction is greater than 500.

Isn't it possible to construct according to the drawings Such a simple way of working hard is not a high-tech thing

In municipal engineering, the difference between "buried depth" and "covering depth" is wild skin: different standards, different distances from the ground, and different frozen soil lines.

First, the standards are different.

1. "Buried depth": "Buried depth" is the distance from the ground to the bottom (inner wall) of the pipeline.

2. "Soil Covering Depth": "Soil Covering Depth" is the distance from the ground to the top (outer wall) of the pipeline.

Second, the distance from the ground is different.

1. "Buried depth": The distance between "buried depth" and the ground is generally not less than the place.

2. "Covering depth": The distance between "covering depth" and the ground is generally not less than the place. Ode to the difference.

Third, the permafrost line is different.

1. "Buried depth": "Buried depth" should be laid below the frozen soil line.

2. "Covering depth": "Covering depth" should be laid below the frozen soil line.

Summary. A, X09 first with civil reservation, embedded, where there is an installation drawing and the civil drawing is not designed, should be timely and civil engineering reservation, embedded work, negotiate their respective scope and responsibility, to avoid errors and omissions.

B. X09 embedded casing and pipeline belong to special processes, and the construction project department should first write out the "special process construction measures". Construction can only be carried out after approval. When embedded, the embedded position and size should be further verified, and a special person should be supervised to prevent the embedded parts from being displaced or damaged.

C, X09 building water supply and drainage installation basic requirements according to the "heating and sanitation engineering construction and acceptance specifications", due to the rapid development of new materials, the new specifications have not been published, can refer to the technical requirements prepared by the manufacturer.

D, X09 floor drain installation should be combined with the civil engineering finish surface, construction and civil engineering.

This is my answer, I hope it is helpful to you, thank you for your concern.

1. Before the construction of the underground pipe heat exchange system, the engineering survey data, design documents and construction drawings of the buried pipe area should be available, and the construction organization design should be completed. 2. Before the construction of the underground pipe heat exchange system, the function and accurate location of the existing underground pipelines and other underground structures in the buried pipe site should be understood, and the ground should be cleaned up, weeds, debris and floating soil on the ground should be removed, and the ground should be leveled. 3. Buried pipes and fittings should meet the design requirements, and should have a quality inspection report and a certificate of conformity of the manufacturer.

During the construction process, the pipe should be strictly inspected and protected. See:

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The construction of underground pipes of ground source heat pump includes soil drilling, buried pipes, grouting, pipeline connection, pressurization, cleaning, etc.