What is the construction process of underground pipe? The construction process of outdoor pipeline b

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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Summary. Hello dear, happy to answer your questions. The construction process of outdoor pipeline burial

1. The construction process of the water supply pipeline is mechanically dug to the original fire pipeline, manually dug to the base, the bottom of the groove is accepted, the foundation construction is qualified, the lower pipe is safe, the interface is installed, the gate and the fire hydrant are installed, the masonry inspection well pipeline is tested, the flushing and disinfection is disinfection, and the pipeline is backfilled.

Second, earthwork construction 1Before construction, the position and elevation of the pipeline to be connected should be retested, checked regularly, the original record of construction should be made, and the measurement should be carried out in time. Before slotting, it is necessary to carefully investigate and understand the current situation of the intersection, pipelines and other obstacles, so as to take proper reinforcement and protection measures during excavation.

2.Mechanical grooving, the bottom of the groove is reserved for 20cm, and the bottom of the groove is manually cleaned to ensure that the original soil at the bottom of the groove is not disturbed. 3.

The slotting slope is, if the soil quality is not good, the slope should be enlarged, if the position is limited, the support is used to prevent the collapse of the groove, and the slotting section is implemented according to the design requirements. 4.After slotting, before laying the foundation, Party A should be asked to inspect the groove, and the next process can be carried out only after passing the foundation.

5.After the experience of the bottom of the trough is qualified, the foundation is laid with medium sand to ensure compactness. 6.

After the pipeline is laid, the backfill medium sand is 200mm flat on the pipeline, and then the backfill is rammed in layers, and each layer is not more than 300mm.

The construction process of outdoor pipeline burial

Hello dear, happy to answer your questions. The construction process of outdoor pipeline burial

1. The construction process of the water supply pipeline is mechanically dug to the original fire pipeline, manually dug to the base, the bottom of the groove is accepted, the foundation construction is qualified, the lower pipe is safe, the interface is installed, the gate and the fire hydrant are installed, the masonry inspection well pipeline is tested, the flushing and disinfection is disinfection, and the pipeline is backfilled.

Second, earthwork construction 1Before construction, the position and elevation of the pipeline to be connected should be retested, checked regularly, the original record of construction should be made, and the measurement should be carried out in time. Before slotting, it is necessary to carefully investigate and understand the current situation of the intersection, pipelines and other obstacles, so as to take proper reinforcement and protection measures during excavation.

2.Mechanical grooving, the bottom of the groove is reserved for 20cm, and the bottom of the groove is manually cleaned to ensure that the original soil at the bottom of the groove is not disturbed. 3.

The slotting slope is, if the soil quality is not good, the slope should be enlarged, if the position is limited, the support is used to prevent the collapse of the groove, and the slotting section is implemented according to the design requirements. 4.After slotting, before laying the foundation, Party A should be asked to inspect the groove, and the next process can be carried out only after passing the foundation.

5.After the experience of the bottom of the trough is qualified, the foundation is laid with medium sand to ensure compactness. 6.

After the pipeline is laid, the backfill medium sand is 200mm flat on the pipeline, and then the backfill is rammed in layers, and each layer is not more than 300mm.

Extended information: The outdoor heating pipe network is the part of the central heating system with a large investment share and the heaviest construction. It is of great significance to reasonably choose the laying method of heating pipelines and do a good job in the alignment of pipe networks to save investment, ensure the safe and reliable operation of heating networks, and facilitate construction and maintenance.

Heating pipeline laying refers to the work of forming a whole of heating pipes and their accessories according to the design requirements and making them in place. The laying form of heating pipelines is divided into two categories: above-ground (overhead) laying and underground laying.

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

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

Key processes: pre-installation inspection of pipelines; pipe welding and quality inspection; pipeline joint repair; piping system test; Piping system commissioning and trial operation; Pipes are hidden.

Answer analysis: The question mainly examines the determination of the key processes in the construction of the pipeline Natural gas pipelines generally belong to long-distance pipelines, and the construction points of long-distance pipelines are: (1) line piling; (2) Preparation of on-site land; (3) Pipe routing and cleaning nozzles; (4) Pipe section assembly, welding and quality inspection; (5) Pipeline joint repair; (6) Through-ball sweeping and pressure testing of pipelines; (7) Landform restoration. This question can also be answered comprehensively, and the key processes of the construction of buried pipeline D325 8 include:

Pre-installation inspection of pipelines; pipe welding and quality inspection; pipeline joint repair; piping system test; Piping system commissioning and trial operation; Pipeline concealment, etc.