Complex geological region intelligent grouting system and method

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 ...

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