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Complex geological region intelligent grouting system and method

A complex geological and grouting technology, which is applied in underground chambers, earthwork drilling, wellbore lining, etc., to achieve the effects of increasing grouting speed, high construction efficiency and high degree of automation

Active Publication Date: 2018-04-24
CHINA UNIV OF MINING & TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems of traditional grouting, the present invention proposes a smart grouting system and grouting method in complex geological areas, which can not only realize multi-hole simultaneous grouting in complex geological areas, but also intelligently control grouting in complex geological areas

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  • Complex geological region intelligent grouting system and method
  • Complex geological region intelligent grouting system and method

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Embodiment 1

[0052] as attached figure 2 As shown, the present invention proposes the intelligent grouting method of the above system at the same time, and the specific steps are as follows:

[0053] Step 1. Select a section of the target grouting roadway for support, determine the location and size of the grouting holes according to the design requirements, and ensure that the distance between the grouting holes is not less than the diffusion radius of the grout.

[0054] Step 2. Open the electronic three-way valves A1-A4 on the main grouting pipeline 6 of the thick slurry, and turn on the grouting pump 4. The water flows through the pipelines connected to the water tank 3 and diverted to each branch pipeline 13 through the electronic three-way valves A1-A4. -1-13-4, each grouting hole injects water at the same time, and obtains real-time water injection through the pressure sensor 11-1-11-4 and the flow sensor 12-1-12-4 on the branch pipeline 13-1-13-4 Pressure and flow, the collected ...

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Abstract

The invention relates to a complex geological region intelligent grouting system and method. The method comprises the steps that the permeability coefficient of each grouting hole inside a region is obtained through water permeability detection, the best grout density suitable for each grouting hole is determined, and a sensor and a control valve are installed on each pipeline for performing real-time control to achieve the intelligent grouting effect; by controlling thick grout and thin grout of different flow ratios to be mixed, the best grout density suitable for each grouting hole is prepared to achieve the best grouting effect; a corresponding grouting end final pressure is provided, when the grouting pressure of a certain grouting hole in the middle of the region is increased suddenly, it is considered that the grouting hole design region is filled with grout, grouting of the hole is ended, and when all the grouting holes inside the target region reach the grout end final pressure, grouting of the region is finished. According to the method, intelligent grouting under complex geological conditions is achieved, the automatic degree is high, the roadway grouting speed can be greatly increased, the construction efficiency is high, and the construction efficiency and quality can be ensured.

Description

technical field [0001] The invention relates to the field of roadway support, in particular to an intelligent grouting system and a grouting method for complex geological regions. Background technique [0002] Grouting technology is an engineering technology with strong practicability and wide application range. It has also been widely used in the field of coal mine roadway support. It can fill the cracks in surrounding rocks through grouting, cement and strengthen the broken rock mass into a whole, and improve The bearing capacity of the surrounding rock has a significant effect on the deformation control of the roadway crack surrounding rock. [0003] The existing downhole grouting technology has the following problems: [0004] 1. Low-flow grouting pumps are still mostly used for single-hole construction in grouting. The construction speed is slow and the efficiency is low, which has great restrictions on the rapid excavation and support of the roadway. Although porous ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10
CPCE21D11/10
Inventor 陆银龙王凯王连国孟星宇
Owner CHINA UNIV OF MINING & TECH
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