Cleaning method of relief well or piezometric tube

Abstract

The invention relates to a relief well or a pressure measuring tube for monitoring a dike (dam) body in a water conservancy project. A cleaning method for pressure relief wells or piezometric tubes is proposed, which includes cleaning tool preparation, inserting the cleaning tubes into the relief wells or piezometer tubes, cleaning, and taking out the cleaning tubes from the well pipes, etc., wherein the cleaning tools include winches, air compressors, etc. And the cleaning tube, the cleaning tube includes a hard tube and a pressure-resistant hose, one end of the pressure-resistant hose extends into the proximal end of the hard tube, and the other end of the pressure-resistant hose is connected to the air compressor; when cleaning, move the hard tube And pressure-resistant hose, so that sedimentation and sewage can be discharged out of the relief well or piezometric tube through the hard pipe. The present invention has the following features: 1) Cleaning and sewage discharge are carried out at the same time, the cleaning effect is good, and a large amount of external water sources for cleaning can be saved. 2) Using the air suction method to discharge silt, the gravel, sand and silt at the bottom of the well (pipe) can be discharged out of the well (pipe), without being limited by the depth of the relief well or piezometric tube.

Description

technical field [0001] The invention relates to a relief well or a pressure measuring tube for monitoring a dike (dam) body in a water conservancy project. Background technique [0002] The relief well is a commonly used and effective protection and reinforcement facility for river dams. Its main function is to dredge the underground seepage in the dam during the flood season. The pressurized water head and osmotic pressure of the embankment prevent the seepage deformation and seepage damage of the embankment, and protect the safety of the embankment. [0003] The function of the piezometric tube is to use the measured water level data in the pipe to understand the uplift pressure of the foundation, correctly reflect the infiltration line of the dike (dam) body and the size of the seepage pressure at each point, and conduct stability analysis and seepage analysis of the dike (dam) body , is an important analysis basis to ensure the safety and stability of the embankment (da...

AI Technical Summary

Problems solved by technology

After the decompression well is silted up, it cannot be drained and decompressed in time

[0005] After the piezometric tube is silted up, the measured data cannot correctly reflect the uplift pressure of the foundation. If the stable analysis of the piezometric tube observation and the normal work of the seepage analysis cannot be guaranteed during the flood season, the safety of the embankment (dam) body will be endangered.

[0006] Due to the limitations of cleaning methods for pressure relief wells and piezometric tubes in the past, piezometric pipes that affect observation and reduce observation effects, and pressure relief wells that have failed due to clogging can only be scrapped, and piezometric pipes must be rebuilt nearby. or relief well

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