Water gushing sand breaking disturbance deep loose stratum ground grouting hole-forming method

A stratum and water gushing technology, applied in earth-moving drilling, mining equipment, shaft equipment, etc., can solve the problems of mud leakage, easy deflection of drilling holes, etc., so as to reduce construction operation costs, avoid buried drilling and mud leakage, and improve construction. The effect of work efficiency

Active Publication Date: 2020-09-18
ANHUI UNIV OF SCI & TECH
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for grouting the deep and loose stratum ground with water inrush and sand disturbance, which is used to solve the problems of buried drilling, serious mud leakage and easy drilling when drilling and grouting in the ground for water influx and sand inrush. Skew problem

Method used

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  • Water gushing sand breaking disturbance deep loose stratum ground grouting hole-forming method
  • Water gushing sand breaking disturbance deep loose stratum ground grouting hole-forming method

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Embodiment Construction

[0051]The technical solutions in the embodiments of the present invention will be clearly and completely described below, obviously, the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0052] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0053] Such as figure 1 and figure 2 As shown, the present invention provides a method for ground grouting to form holes in deep and loose formations disturbed by water gushing and sand erosion. The method for ground grouting to form holes includes the following steps:

[00...

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Abstract

The invention provides a water gushing sand breaking disturbance deep loose stratum ground grouting hole-forming method. The method comprises the following steps that S1, the stratum is divided into three sections, wherein the three sections are respectively a conventional section, a stratum alternate section and a water gushing sand breaking section; S2, levelness correction and cement table pouring are carried out on a drilling tower, a drilling machine is installed, and levelness and verticality of the drilling machine are calibrated; S3, a drilling tool is improved, a pagoda type drillingtool consisting of multiple stages of sleeves is used for combined drilling, and the ways of sleeve ring sleeving and multi-stage hole shrinkage are used for drilling and hole protection; S4, the three sections of stratum in step S1 are drilled layer by layer to form a drilled hole; and S5, the fracture condition and the cementing characteristic of the drilled hole formed in the step S4 are detected, and the drilled hole is cleaned. Normal treatment and repair of a vertical shaft of a coal mine are ensured, the construction operation efficiency is improved, and the construction operation costis reduced.

Description

technical field [0001] The invention belongs to the technical field of treatment and restoration of vertical shaft shafts, and in particular relates to a method for forming holes by grouting on the surface of deep and loose strata disturbed by water gushing and sand breaking. Background technique [0002] Ground drilling and grouting is a common method for controlling water hazards during shaft construction and mining in coal mines. Grouting is used to improve the broken and unstable surrounding rock encountered in horizontal roadways or shafts by ground drilling and grouting, so as to improve the integrity of the surrounding rock and reduce its permeability, so as to improve the stability of the surrounding rock and reduce the support The purpose of difficulty is to ensure safe mining. [0003] Ground grouting construction requires the cooperation of drilling and grouting technology. In the process of repairing and repairing shafts in coal mine shafts, it is often necessar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D5/04
CPCE21D5/04
Inventor 程桦孙家应姚直书王志根林健荣传新王晓健宋海清
Owner ANHUI UNIV OF SCI & TECH
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