High-stress roadway surrounding rock deformation control method

Abstract

The invention belongs to a mine roadway surrounding rock deformation control method, and provides a high-stress roadway surrounding rock deformation control method. The high-stress roadway surrounding rock deformation control method mainly includes the following steps: hole drilling for pressure relief; surrounding rock pressure monitoring; pre-splitting, cutting and blasting; pressure-relieving groove filling; and surrounding rock deformation monitoring. The high-stress roadway surrounding rock deformation control method is characterized in that holes are drilled in roadway surrounding rocks for pressure relief, and whether a pressure relief effect is achieved is determined through pressure monitoring in a pressure relief area. If a desired pressure relief effect is not achieved, a pressure-relieving groove is formed in the roadway surrounding rocks by means of a pre-splitting blasting technique, and surrounding rock deformation cushioning materials are filled into the pressure-relieving groove; and at the same time, pressure sensors are embedded in the pressure-relieving groove and surrounding rock deformation monitoring sections are laid in the pressure-relieving groove, so that monitoring the pressure relief effect can be conducted. The high-stress roadway surrounding rock deformation control method can effectively control deformation of the roadway surrounding rocks under geological conditions of large burial depth or high ground stress, and ensures roadways, in an environment of the high ground stress, of a mine can be normally used in a production period.

Description

technical field [0001] The invention belongs to a method for mine roadway construction, which is suitable for roadway engineering under the geological conditions of large buried depth or high ground stress in mines. Background technique [0002] As the mining depth increases, the geological environment becomes more complex, leading to a series of problems such as increased ground stress, increased broken rock mass, increased water inflow, increased ground temperature, increased sudden disasters and accidents, and deteriorated operating environment. The deformation of the surrounding rock in the mine roadway is more serious, and the problem of how to effectively control the deformation of the surrounding rock in the deep mine roadway has attracted the attention of experts and scholars at home and abroad. [0003] The complex geological conditions and mechanical environment in the deep make it difficult to control the stability of the surrounding rock of the roadway, the suppo...

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Problems solved by technology

These methods all have problems such as high cost and unsatisfactory support effect.

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