基于窥视法的围岩稳定性评价研究

针对深部软岩巷道工程地质条件复杂、巷道支护难度大等问题，以丰峪煤业实际矿井地质条件为例，采用试验室试验以及窥视法对该矿围岩稳定性进行研究，通过单轴压缩试验、巴西（劈裂）试验和三轴压缩试验研究了该矿运输巷的基本顶、直接顶、直接底的单轴抗压强度、单轴抗拉强度、三轴抗拉强度、弹性模量等参数；采用窥视法对该巷道围岩松动圈进行研究。研究得出:该矿运输巷的左帮产生的围岩松动圈在3.0~4.2 m，右帮产生的围岩松动圈在2.2~3.8 m，顶板产生的围岩松动圈在1.0~2.4 m，围岩稳定性差，应该加强支护，确保矿井的安全开采，研究为巷道的超前加固提供了可靠的理论依据，保证巷道的正常使用和回采的顺利进行。

Study on stability evaluation of surrounding rock based on peephole method

In allusion to problems of deep geological conditions in deep soft rock roadway and difficult to support roadway，the stability of mine rock was studied by laboratory test and peephole.The experiment was carried out by uniaxial compression experiment ,the tensile strength，the uniaxial tensile strength，the triaxial tensile strength，the elastic modulus，and so on were studied.The results showed that the basic roof，direct roof and direct bottom uniaxial compressive strength，uniaxial tensile strength，triaxial tensile strength，elastic modulus.The results showed that the loosening circle of the surrounding rock was about 3.0~4.2 m，and the loosening circle of the surrounding rock was 2.2~3.8 m，the roof of the surrounding rock loosening circle was 1.0~2.4 m，poor stability of the surrounding rock，should strengthen the support to ensure the safe mining of the mine，the study for the road ahead of the reinforcement to provide a reliable theoretical basis to ensure the normal use of roadway and mining smoothly progress.