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根据工程场地岩土体的破裂,以辽宁抚顺地裂缝为例,采用理论解析、数值模拟等手段,开展了矿震引发地裂缝扩展效应探讨。研究认为:煤田开采破坏了抚顺地区的地质环境,浑河断裂带是抚顺地区发育地裂缝的地质构造基础,采煤沉陷为地裂缝的发育提供了运移空间及应力条件,该地区频繁发生的矿震加剧了地裂缝的扩展及破坏作用。
According to the rupture of rock mass and soil in engineering site, taking the fissure in Fushun of Liaoning Province as an example, theoretical analysis and numerical simulation are carried out to discuss the effect of the crack propagation induced by mine shock. The study shows that coal mining destroyed the geological environment in Fushun area. Hunhe fault zone is the geological basis for the development of ground fissures in Fushun area. Mining subsidence provides space and stress conditions for the development of ground fissures. Frequent occurrences Mine earthquake exacerbated the expansion and destruction of ground fissures.