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The application of permeable filter pipes in subway precipitation

Nowadays, many cities are starting to build subways. As public transportation, subways are convenient, fast, don't worry about traffic jams, and have long operating hours. Its construction has high requirements for civil engineering, and the subway is located underground, so precipitation work is very important. One of the main jobs that permeable filter pipes are engaged in is precipitation work, such as in the construction of reservoir precipitation and subway precipitation projects. Below is an introduction to the application of permeable filter pipes in subway precipitation.


During the construction process of the subway, as it is constructed underground, the subway tracks are buried below the groundwater level. Therefore, if the precipitation work is not done well, it will be difficult to construct, and the effectiveness of the precipitation work will directly affect the safety of the project. In the process of subway construction, it is often necessary to do precipitation and pressure reduction work, and both of these tasks require the use of permeable filter pipes.

Generally, the depressurization wells and dewatering wells in subway stations are arranged on both sides of the pit foundation, but their positions can be adjusted according to local conditions, so as not to affect the performance of the dewatering wells as much as possible. During the construction process, do not hit or cut the well pipe, as the well pipe has strict protection requirements. The wellhead should be 0.5 meters above the ground to prevent surface water from seeping into the wellbore. A permeable filter pipe needs to be used in the well pipe, and a layer of nylon rope should be wrapped outside the permeable filter pipe. The diameter of the permeable filter pipe should be the same as the diameter of the well pipe wall. The permeable filter pipe should only be arranged in a slightly pressurized aquifer and a pressurized aquifer.


The daily throughput of the subway is very high, and precipitation work is very important, which is related to the safety of the public. The permeable filter pipe plays a crucial role in subway precipitation work, and its quality and safety are crucial. If you want to purchase a high-quality, safe, and reliable permeable filter pipe, you can choose the permeable filter pipe produced by Wuxi Chenglong Pipe Industry Co., Ltd. Thank you for reading!