深部煤炭资源开采与工程建设中，采掘扰动引发煤岩体内应力变化、促使局域系统内能量集中－传导－释放，诱发煤岩破坏发生动力灾害。针对深埋煤层采动覆岩能量场分布演化诱发冲击地压等的动力灾害问题，以现场调研与理论分析为指导、结合煤样力学实验、物理相似模拟实验以及数值模拟实验，依托声发射、微震等测试装置，分别开展了覆岩破断过程中声发射和微震能量分布研究，以揭示覆岩采掘扰动诱发能量场分布演化规律及致灾机制。

论文以孟村煤矿深埋煤层综放面为背景开展工程调研，对深埋煤层采动覆岩能量场分布规律及其致灾机制进行了深入研究。通过煤样力学实验，得出了煤样发生破坏是由于大量能量的积聚所导致。构建物理相似模拟实验揭示了受采动影响工作面覆岩垮落能量演化特征，微震大部分能量分布采空区上方，此区域内微震大能量事件集中较为密集，破坏较为剧烈，故在实际开采过程中此区域范围重点监测，且受采动影响，部分微震事件分布在工作面前方100m至188m；当顶板砌体梁垮落长度过大，造成顶板能量的大量积聚，诱发动力灾害问题，导致周期性的微震或冲击地压活动。揭示了不同推进度的深埋煤层工作面冲击危险性特征。针对孟村煤矿采动覆岩能量场致灾机制，采用压裂防治技术，促使高应力区围岩聚集的弹性能得到提前释放，为冲击地压的防治提供了新的方向。

本研究揭示了孟村煤矿深埋煤层能量场分布规律以及致灾机理，为研究深埋煤层工作面下能量场分布规律和致灾机制提供了有效方法，确保了工作面安全高效开采，为孟村煤矿深埋煤层的安全开采提供了参考。

In the mining and engineering construction of deep coal resources, mining disturbance causes the change of internal stress of coal and rock mass, promotes the concentration, conduction and release of energy in local system, and induces the dynamic disaster of coal and rock failure. Considering the dynamic disaster of rock burst induced by the evolution of energy field distribution of ground pressure in deep coal seam mining strata, the study on the distribution of acoustic emission and microseismic energy in the process of overburden rock breakage was carried out under the guidance of field investigation and theoretical analysis, combined with the mechanical experiment of coal sample, physical similarity simulation experiment and numerical simulation experiment, and relying on the test equipment of acoustic emission and microseismic, to reveal the distribution and evolution law of energy field induced by mining disturbance of complex rock and the disaster mechanism.

Based on the fully mechanized caving face of deep coal seam in Mengcun Coal Mine, this paper carries out an engineering investigation, and makes an in-depth study on the energy field distribution law and disaster mechanism of overlying rock in deep coal seam mining. Through the mechanical experiment of coal sample, it is concluded that the failure of coal sample is caused by the accumulation of a large amount of energy. The physical similarity simulation experiment reveals the evolution characteristics of overlying rock caving energy under the influence of mining, and most of the microseismic energy is distributed above the goaf. In this area, the concentration of large microseismic energy events is more intensive and the damage is more severe. Therefore, in the actual mining process, this area is mainly monitored and affected by mining. Some microseismic events are distributed 100m to 188m in front of the working face. When the roof beam collapse length is too large, it will cause a large amount of roof energy accumulation, induce dynamic disaster, and lead to periodic microseismic or rock burst activities. The impact hazard characteristics of deep coal seam working face with different degrees of advance are revealed. In view of the disaster mechanism caused by the energy field of overlying rock in Mengcun Coal mine, the fracturing prevention technology is adopted to promote the elastic energy of surrounding rock accumulation in high stress area to be released in advance, which provides a new direction for the prevention of rock burst.

This study reveals the energy field distribution law and disaster causing mechanism of Mengcun Coal mine's deep buried coal seam, provides an effective method for studying the energy field distribution law and disaster causing mechanism of deep buried coal face, ensures safe and efficient mining of the working face, and provides a reference for the safe mining of Mengcun coal mine's deep buried coal seam.

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