Pile foundation hole cleaning device and technology

Abstract

The invention discloses a pile foundation hole cleaning device, which includes an air compressor, an air supply pipe, a conduit, an air lift reverse circulation guide cover and a sedimentation tank. One end of the air supply pipe is connected to the input port of the air compressor, and the other end is inserted into the conduit , the conduit is set in the pile hole to be cleaned, the pile hole is provided with chemical slurry, the upper port of the conduit is connected to the sedimentation tank through the slag discharge pipe, the outlet of the slag discharge pipe is provided with a pressure gauge, and the slag discharge pipe and the sedimentation tank are provided with a The first filter screen, the sedimentation tank is connected to the pile hole through the grout filling pipe, the second filter screen is set between the sedimentation tank and the grout filling pipe, the upper port of the conduit is connected to the gas lift reverse circulation guide cover, the air supply pipe and the slag discharge pipe are both It is installed in the hole of the gas lift reverse circulation shroud, wherein the internal sectional area of ​​the conduit is smaller than the annular sectional area between the external wall of the conduit and the pile wall. The invention has simple structure and process, low cost, high hole cleaning efficiency and good hole cleaning effect.

Description

technical field [0001] The invention relates to a pile foundation hole cleaning device and technology. Background technique [0002] The rotary excavation pile construction technology is an advanced hole-forming method with broad application prospects. In the case of good geological environment and large site area, the hole-forming method is fast and efficient. Therefore, it is also used in the application of bridge construction in our country. more and more. The process of pile foundation hole cleaning is an extremely important link, which has a great influence on the quality of pile foundation. With the continuous development of social science and technology, more and more holes are formed by rotary drilling. Although the existing hole cleaning methods are different, there are basically common problems such as poor hole cleaning quality, long time-consuming, and poor pile foundation quality. Contents of the invention [0003] In order to solve the defects of the prior ...

AI Technical Summary

Problems solved by technology

With the continuous development of social science and technology, more and more holes are formed by rotary digging. Although the existing hole cleaning methods are different, there are basically common problems such as poor hole cleaning quality, long time-consuming, and poor pile foundation quality.

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