【摘要】 本文根据某电站调压井围岩稳定模型试验研究成果,分析了调压井开挖后围岩应变重分布、上室开挖对调压井应变分布的影响、调压井采用不同支护方式的效果和围岩失稳时的破坏机制。研究结果表明:调压井围岩应变重分布主要取决于地应力特征;上室开挖只扰动调压井与上室衔接部分应变分布;支护方式不同导致围岩破坏荷载、过程、形态不同,但是破坏机制不变。更多还原

【Abstract】 Based on the results of our experimental researches, this paper analyzed the strain redistribution of surround rock after excavation of surge shaft, the effects of different types of surrounding rock consolidation, the influence of the upper chamber excavation on the strain distribution of surge shaft. and the failure mechanism at loosing stability of surrounding rock.更多还原