In the field of water supply and drainage engineering construction, Hubei AD Building Materials Co., Ltd. relies on its excellent products and rich experience to provide reliable AD PE water supply and drainage pipeline solutions for various projects. The following will introduce its construction process in detail. 1. Grooved pipeline construction

trench excavation: According to the actual situation of the project, the way of sloping or enclosure is flexibly used for trench excavation. When sloping excavation, the slope is accurately calculated to ensure the stability of the slope; when using enclosure structure, high-quality materials are selected to ensure the safety of construction and the stability of the surrounding environment. Groove inspection: After the excavation is completed, professionals conduct a comprehensive inspection of the trench in strict accordance with the standards. Carefully check the key indicators such as the bottom elevation, flatness and stability of the groove wall to lay a solid foundation for subsequent construction. Reinforcement of trough bottom: If the soil at the bottom of the trough does not meet the requirements, effective reinforcement measures are taken quickly. Such as by replacing high-quality soil and laying sand and gravel cushions to enhance the bearing capacity of the trough bottom. Application of cushion: Lay a cushion that meets the design requirements at the bottom of the trough, usually using concrete or sand cushions to provide a stable and flat support surface for pipeline installation. Second, pipeline construction without grooving

pipe jacking construction: With the help of jacking equipment, the tool pipe or tunneling machine is pushed into the soil layer from the working pit, and the pipeline is buried in the ground at the same time. This method is suitable for engineering scenarios that pass through obstacles and have little interference with the ground. Shield construction: Use a shield machine to dig underground and assemble prefabricated pipe sheets synchronously to form a pipeline structure. The technology is suitable for long-distance, large diameter pipeline construction, with high construction precision and good safety performance. Shallow Buried Underground Excavation: In the shallow buried soil layer, a variety of auxiliary construction methods are used to complete the pipeline construction with a small surface settlement. Through reasonable support and excavation methods, ensure the smooth progress of the project. Directional Drilling: Using directional drilling rigs, drilling holes according to predetermined trajectories, and then pulling back the pipeline to achieve trenchless laying. Commonly used in pipeline construction crossing special sections such as rivers and roads. Ramming Pipe: Using a ramming hammer to ram the steel pipe into the soil layer and connect it section by section to form a pipeline. Easy to operate, fast construction speed, suitable for short distance pipeline laying. Third, pipeline installation

water supply pipeline: Using AD PE pipe, using hot melt or electric fusion connection method. When the hot-melt connection is made, the heating temperature and time are precisely controlled to ensure that the pipe interface is fully integrated; the electrofusion connection uses the resistance wire in the electrofusion pipe fittings to heat up, so that the pipe and the pipe fittings are closely connected to ensure the sealing and firmness of the interface. Drainage Pipeline: Prefabricated concrete pipes are used and connected through socket type. During installation, carefully clean the nozzle and apply sealing materials to ensure that the connection is tight and prevent water leakage. IV. Construction of Auxiliary Facilities

Ditch/Pipeline: Construction is carried out in strict accordance with the design requirements to ensure that the structure size is accurate, the surface is flat and the drainage is smooth. Process Well: According to different functional requirements, the location and specifications of the process well are precisely set to ensure the installation and operation space of the facilities in the well. Gate Well: High-quality gate valves are selected, which are firmly installed and flexible to open, which is convenient for the Inspection Well: When building an inspection well, follow the relevant specifications to ensure that the well wall is vertical, the ash seam is full, and the ladder is firmly installed. 5. Functional Experiment

Pressure Pipeline Water Pressure Experiment: Conduct a water pressure test on pressure pipelines such as water supply pipelines to check the pressure strength and tightness of the pipelines. Operate according to the specified experimental pressure and time to ensure the safety and reliability of the pipelines. No Pressure Pipeline Tightness Experiment: For drainage pipelines, use a closed water or closed air experiment to check whether there is leakage in the pipeline and ensure the normal operation of the drainage system. Flushing and Disinfection of Water Supply Pipelines: After the installation of the water supply pipeline is completed, a comprehensive flushing is carried out to remove impurities and dirt in the pipeline, and then a suitable disinfection method is used to ensure that the water quality meets the hygiene standards. Six, maintenance and repair

local repair: for the local damage of the pipeline, the sealing method, patch method, hinged pipe method, local soft lining method, grouting method, robot method and other technologies are used for repair. According to the actual damage situation, choose the most suitable method to quickly restore the normal function of the pipeline. Full section repair: When the overall aging of the pipeline or serious damage, the full section repair technology such as lining method, winding method and spraying method is adopted. These methods can effectively improve the service life and performance of the pipeline. Pipeline renewal: By means of broken pipe extrusion or broken pipe jacking, the old pipeline is updated and replaced to ensure the efficient operation of the water supply and drainage system.

Hubei AD Building Materials Co., Ltd. has rich experience and professional technology in the field of AD PE water supply and drainage pipeline construction. If you encounter problems in construction, or need to purchase high-quality PE pipe, please feel free to contact us, we will serve you wholeheartedly.