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High-pressure rotary jet grouting drill bit

A high-pressure rotary jet and grouting technology, applied in drill bits, drill pipes, drill pipes, etc., can solve the problems of waste of resources and idle drill bits, and achieve the effect of convenient operation and avoid waste of idle resources.

Pending Publication Date: 2019-09-20
骆波清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For this reason, the purpose of the present invention is to provide a kind of high-pressure rotary jet grouting drill bit, to solve above-mentioned said drill bit idle, cause the problem of waste of resources

Method used

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  • High-pressure rotary jet grouting drill bit
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  • High-pressure rotary jet grouting drill bit

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Embodiment Construction

[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention provides a high-pressure rotary jet grouting drill bit, and belongs to the grouting drill bit. The high-pressure rotary jet grouting drill bit comprises a threaded pipe, a trepanning pipe and a drill head part, the threaded pipe and the trepanning pipe are an integrated form, the drill head part is connected with the end part of the trepanning pipe in a threaded mode, the inner cavity of the trepanning pipe communicates with the threaded pipe, and the side wall of the inner cavity of the trepanning pipe is provided with five grouting holes; a sleeve sleeves the outer side of the trepanning pipe, the two ends of the sleeve are correspondingly bunted against the threaded pipe and the drill head part, the side wall of the sleeve is provided with a first hole group and a second hole group, the first hole group comprises five discharging thick liquid holes corresponding to positions of the five grouting holes, and the second hole group comprises three discharging thick liquid holes corresponding to positions of the three grouting holes of the five grouting holes. The problem of waste of resources caused by the idle drill bit is solved.

Description

technical field [0001] The invention relates to a grouting drill bit, in particular to a high-pressure rotary jet grouting drill bit. Background technique [0002] At present, in foundation pit or slope support engineering, anchor cable is a common support type. For common good geological conditions, conventional anchor cable construction methods can meet the requirements; but for the bottom layer containing pebbles and gravel, for To prevent the hole from collapsing after the hole is introduced, a high-pressure rotary jet grouting drill bit is usually used to inject mud into the hole to strengthen the support strength of the hole. [0003] The existing grouting drill bit includes a threaded pipe and a drill head integrally connected with the threaded pipe. The drill head is hollow, and the outer wall is provided with several grouting holes. [0004] Install the grouting drill bit on the drill pipe of the grouting machine, and rotate it at the same time during the grouting ...

Claims

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Application Information

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IPC IPC(8): E21B10/00E21B10/60E21B17/042E02D15/02
CPCE21B10/00E21B10/60E21B17/0426E02D15/02E02D2250/003Y02E10/20
Inventor 骆波清魏伟汤立恒陈桂新刘建兵
Owner 骆波清
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