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Hole collapse-incapable high-pressure water ejection drilling and broaching anchor rod pile

A high-pressure water jet and bolt pile technology, which is applied in drill pipe, drilling with liquid/gas jet, drilling pipe, etc., can solve the problem of high manufacturing cost and maintenance cost, complicated drilling method and equipment of mechanical drill pipe, and inability to penetrate, etc. question

Active Publication Date: 2016-11-09
安徽三江建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The currently authorized and applied anchor piles do not consider the collapse of the pile hole, which makes it difficult or even impossible for the steel strand to penetrate into the pile hole; the mechanical drilling method is complicated, and the manufacturing cost and maintenance costly

Method used

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  • Hole collapse-incapable high-pressure water ejection drilling and broaching anchor rod pile
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  • Hole collapse-incapable high-pressure water ejection drilling and broaching anchor rod pile

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Embodiment Construction

[0014] The summary of the invention has described the specific implementation manner of the present invention in detail, does not repeat here, needs to explain as follows: 1. see figure 1 and Figure 9 , when drilling into the injection drill rod 1 while advancing and spraying high-pressure water, the annular knife 21 cuts into the soil around the pile hole earlier, and the tip of the annular knife 21 is ahead of the position of the injection hole 8, so the annular knife 21 is in the process of spraying. A protective circle is formed for the soil around the pile hole, so the water jet has little disturbance to the soil around the pile hole. 2. See figure 2 and Figure 8 , the front end of the high-pressure nozzle 11 has a front nozzle 13, and the conical surface of the high-pressure nozzle 11 has a plurality of side nozzles 12, the front nozzle 13 cuts the soil of the reaming part forward for a certain distance, and the plurality of side nozzles 12 expands the hole, cutting...

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Abstract

The invention discloses a hole collapse-incapable high-pressure water ejection drilling and broaching anchor rod pile, is mainly applied to construction of the anchor rod pile in the architectural engineering field. The anchor rod pile is drilled and broached by using a high-pressure water ejection principle; drill rod equipment is simple, light in weight and low in manufacturing cost and maintenance cost; and a steel strand is inserted in a drill rod simply and easily without generating the hole collapse problem. The anchor rod pile mainly consists of a drilling injection drill rod 1, a broaching injection drill rod 2, a support frame A 3, the steel strand 4, a support frame B 5 and a circular protection cylinder 19. The main construction process comprises the following steps: the drilling injection drill rod 1 sprays high-pressure water currents to drill a pile hole; the broaching injection drill rod 2 is inserted in an overflow channel 9 for broaching a pile end soil layer; after the broaching is finished, the broaching injection drill rod 2 is pulled out; then, the steel strand 4 is inserted in an overflow channel 9 to extend in a cavity 16 at the pile end; finally, the pile hole is grouted by the drilling injection drill rod 1; and after the grouting is finished, the drilling injection drill rod 1 is pulled out to finish construction.

Description

technical field [0001] The invention is mainly used for anchor pile construction in the field of construction engineering. Background technique [0002] The currently authorized and applied anchor piles do not consider the collapse of the pile hole, which makes it difficult or even impossible for the steel strand to penetrate into the pile hole; the mechanical drilling method is complicated, and the manufacturing cost and maintenance costly. Contents of the invention [0003] The present invention solves the above-mentioned problems. It uses the principle of high-pressure water jetting to drill and ream the anchor pile. The equipment of the drill pipe is simple and light in weight, and the manufacturing cost and maintenance cost are low. The steel strand is penetrated into the drill pipe. Penetration is simple and easy, and there is no problem of hole collapse; the present invention mainly consists of drilling jet drill pipe (1), reaming jet drill pipe (2), support frame ...

Claims

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Application Information

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IPC IPC(8): E02D5/36E02D15/04E21B7/18E21B10/43E21B17/18
CPCE02D5/36E02D15/04E21B7/18E21B10/43E21B17/18
Inventor 彭宝安
Owner 安徽三江建设工程有限公司
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