Drill of high pressure water jet long screw pile driver

Abstract

The invention discloses a drill of a high pressure water jet long screw pile driver, comprising a drill body, a high pressure water generating and control device and a high pressure eater jet pipe, wherein the high pressure water generating and control device is connected with a jet nozzle at front end of the drill body through the high pressure water jet pipe, the high pressure water jet pipe is fixed on a hollow long screw rod and the inner wall of the drill body through clips; and a connecting and fixing lug is arranged at the outside of the upper part of the drill body. The invention has the advantages of low energy consumption and pile driving cost, no secondary pollution generated by the high pressure water jet, high pile driving speed and wild applicable scope.

Description

technical field [0001] The invention relates to a long spiral pile driver drill bit, in particular to a high-pressure water jet type long spiral pile driver drill bit. Background technique [0002] In recent years, long screw pile drivers have been more and more widely used in construction, bridge and other fields, especially in the occasions where the working conditions are relatively harsh, the depth of the pile body is large, and the quality requirements are high. However, the geological conditions of the pile driver work are very different. It is difficult for the traditional pile driver to accurately control the working force of the long auger bit. waste of energy. On the other hand, in areas with high geological hardness, the drill bit of the long spiral pile driver often encounters larger and harder stones. At this time, the drill bit of the long spiral pile driver cannot continue to drill at all, and the wear on the drill bit is also very serious. Seriously, the fr...

AI Technical Summary

Problems solved by technology

However, the geological conditions of the pile driver work are very different. It is difficult for the traditional pile driver to accurately control the working force of the long auger bit. waste of energy

On the other hand, in areas with high geological hardness, the drill bit of the long spiral pile driver often encounters larger and harder stones. At this time, the drill bit of the long spiral pile driver cannot continue to drill at all, and the wear on the drill bit is also very serious. Seriously, the frequency of replacing the drill bit is increased, and the procedures for replacing the drill bit are cumbersome and take a long time, so that the construction period is often delayed, resulting in major economic losses and a sharp increase in costs

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