Integrated monitoring and early warning system and early warning method for dynamic condition of deep well drivage construction

Abstract

The invention discloses an integrated monitoring and early warning system and early warning method for dynamic condition of deep well drivage construction. The system comprises a monitoring and controlling system platform and a system signal collection unit. The method comprises collecting geological condition data about the deep well drivage construction, arranging an acoustic emission signal sensor and a microseismic pick up seismic station on the roadway to collect internal fracture and instability precursor signals of surrounding rocks, arranging a macroscope deformation and pressure data collecting device for surrounding rocks is arranged, transmitting the internal fracture and instability precursor signals of surrounding rocks, crustal stress, impacting tendency of coal-rock mass, drilling yield, construction geological condition data, support pressure, surface convergence deformation, drilling inner stress and drilling inner damage signal to a monitoring system unit, laying out controlling scheme and construction solving method by the system when an early warning unit delivers early warning. The integrated monitoring and early warning system and early warning method for dynamic condition of deep well drivage construction is scientific in system, safe and practical, and strong in effectiveness. In-time monitoring and early warning for well construction under high stress is realized.

Description

technical field [0001] The invention relates to a dynamic comprehensive monitoring and early warning system and treatment method for deep mine roadway excavation construction, which is especially suitable for real-time monitoring, comprehensive dynamic design and early warning treatment of strong (impact) mine pressure during coal roadway construction in deep well and high ground stress environment. Background technique [0002] With the reduction of shallow coal resources in my country and the increase of deep resource mining, dynamic instability and predictive control of surrounding rock dynamics in high-stress roadways in deep wells have become one of the key technical issues to be solved urgently in deep mining projects. Compared with shallow mining, the macroscopic dynamic response characteristics of deep coal and rock mass, the mining stress field, and the law of energy accumulation and release have all undergone significant changes. The frequency, intensity and scale ...

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Problems solved by technology

Compared with shallow mining, the macroscopic dynamic response characteristics of deep coal and rock mass, the mining stress field, and the law of energy accumulation and release have all undergone significant changes. The dynamic characteristics are more complicated, which makes the frequency, intensity and scale of dynamic disasters such as rock burst, large-area pressure on the roof, and large deformation of the roadway surrounding rock increase almost proportional to the depth. Disastrous accidents are becoming more and more frequent, causing major Economic losses and a large number of casualties, deep coal and rock dynamic instability problems seriously restrict the efficient and safe mining of coal

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