固液耦合模式下采动诱发断层活化及突水的试验研究

Experimental Research on Fault Activation and Water Inrush Induced by Mining Under Solid-liquid Coupling Mode

摘要: 以五沟煤矿F₁₆断层地质条件为背景，采用相似材料模拟试验，在固液两相相似的基础上研究临近断层时采动对煤层顶、底板以及工作面前方煤柱的塑性破坏规律以及断层的活化突水规律，研究结果表明：由于断层带具有“屏障”作用，在煤柱的顶板和底板形成更高的集中应力；底板岩层渗透率较大的岩层，底板突水的危险性更大；在相同的煤柱宽度时，含水层水压越大，突水危险性更大。
- 断层突水 /
- 断层活化 /
- 相似试验 /
- 含水层 /
- 屏障
Abstract: According to the geological conditions of F₁₆ fault of Wugou Coalmine, it used the simulation test of similar materials, on the basis of solid-liquid two-phase similarity, to study plastic damage law of the coal pillar and the fault activation water inrush law of roof, floor and working face ahead when approaching fault mining. The results showed that the higher concentration stress formed in the roof and floor of coal pillar because of the barrier effect of fault zone. The water inrush risk was greater in the larger permeability of bottom strata rock. For the same width of coal pillar, the greater water pressure of aquifer was, the greater water inrush risk was.
- fault water inrush /
- fault activation /
- similar experiment /
- aquifer /
- barrier

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