Rock burst prevention and curing device with energy guiding function

Abstract

The invention provides a rock burst prevention and curing device with an energy guiding function, and mainly relates to the field of coal field geological exploration. The rock burst prevention and curing device with the energy guiding function comprises a middle support, bottom plates are fixedly installed on the two sides of the middle support through bolts respectively, two supporting seats are fixedly installed on each bottom plate, sensor bases are rotatably installed on the supporting seats, first corner sensors are fixedly installed on the sensor bases. A front rocker arm is rotationally installed on a first corner sensor, and a second corner sensor is arranged at the front end of the front rocker arm. The rock burst prevention and curing device with the energy guiding function has the beneficial effects that the rock burst prevention and curing device with the energy guiding function can monitor the stress of a coal seam or a rock stratum in a high-risk-level area of rock burst in real time, and when the stress concentration change exceeds a preset value, early warning information can be sent out; according to the early warning information, a worker can timely conduct energy guiding and releasing on a stress concentration area in a blasting pressure relief mode, a drilling pressure relief mode, an induced blasting mode and the like, and therefore the rock burst is effectively avoided.

Description

technical field [0001] The invention mainly relates to the field of coal field geological survey, in particular to a rock burst prevention and control device with an energy guiding function. Background technique [0002] Rockburst disaster is also called rockburst disaster (bump disaster), and it is called coal burst in coal mines. Under the action of internal high stress, the ore body or rock mass will destroy the equilibrium state, release a large amount of energy suddenly, cause explosive vibration, and cause disasters caused by the sudden eruption of ore bodies and rocks on the surrounding walls of the shaft. The cause of rock burst is mainly the result of the instantaneous release of elastic variable energy accumulated in the coal and rock body exceeding its bearing capacity. [0003] The prevention and control technologies of rock burst can be broadly divided into three types: [0004] One is to adopt mining optimization design methods to avoid the occurrence of rock...

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Problems solved by technology

[0007] After trial and practice, it is found that it is the fastest and most effective method to relieve the danger in the area with impact risk, avoid high stress concentration and improve the medium properties of coal and rock mass to weaken the ability to accumulate elastic energy. However, there is currently no real-time method in the industry. Equipment that monitors stress changes in each dangerous area so that it can guide energy release and relieve stress concentration to prevent rock burst

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