Pile bottom hole clearing system and process of pile bottom hole clearing

Abstract

The invention relates to a pile-bottom borehole-cleaning system and a pile-bottom borehole-cleaning technique, adopting a direct-reverse circulation-combined borehole cleaning technique for carrying out pile-bottom borehole cleaning. The pile-bottom borehole cleaning system comprises a reverse circulation pump, a mud pump, a valve switch, a pipeline, a mud ditch or a mud pipeline, a sedimentationbasin and a conduit; the conduit is communicated with a pipeline at the right side and connected with the reverse circulation pump, the mud pump and a three-way valve switch; the interconversion of the direct-reverse circulation borehole cleaning is realized by controlling the valve switch. Compared with the prior art, the pile-bottom borehole cleaning system and technique can carry out fast slagremoval cleanly and thoroughly, thereby increasing the slag removal efficiency by 3 to 5 times, and ensuring the quality of the pile basement; the used borehole cleaning device has simple and functional installment and operation, easily accessible materials, low price and convenient process.

Description

technical field [0001] The invention relates to a system and a hole cleaning process for removing sediment at the bottom of a punching (drilling) hole pouring pile. Background technique [0002] Punching (drilling) hole grouting piles have the advantages of reliable pile quality, strong earthquake resistance, pile ends can pass through various complex strata and form a large single pile bearing capacity, adapt to various geological conditions and buildings of different scales, etc. It has been widely used in medium and high-rise buildings and super high-rise buildings under foundation conditions, and has become an important pile type. But after this kind of pile is holed, all have very thick sediment and silt at the bottom of its pile. In this regard, at present, a single positive and reverse circulation hole cleaning process is often used to deal with it. However, under normal circumstances, a single positive and reverse circulation hole cleaning process is used to clean t...

AI Technical Summary

Problems solved by technology

In this regard, at present, a single positive and reverse circulation hole cleaning process is often used to deal with it. However, under normal circumstances, a single positive and reverse circulation hole cleaning process is used to clean the hole. The cleaning time at the bottom of the pile is generally more than 4 hours, and the pile Difficult to control the quality of bottom cleaning holes

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