【摘要】 本文在分析水压致裂法测试地应力原理的基础上,结合隧道工程实际,采用水压致裂法进行隧道围岩地应力的测试研究分析工作,获取了隧道围岩的最大、最小水平主应力量值及最大水平主应力的方向,以及岩体破裂压力、岩体抗拉强度、岩体瞬时闭合压力、破裂面的重张压力等地应力及岩体力学参数,并根据隧道区的地应力资料,和岩石参数进行了岩爆预测分析,为隧道工程的设计、施工提供科学依据和技术支撑。更多还原

【Abstract】 Based on the theory of hydraulic fracturing method and combining with the actual circumstance of the tunnel engineering,the stress in the earth’s crust of the tunnel’s surrounding rock was analyzed by the hydraulic fracturing method in the paper.The quantity value,the direction of the maximum main strain and the minimum main strain of the surrounding rock of the tunnel were obtained as well as the stress to fracture rock,the tensile strength of the rock,the moment shut and match stress,the re-open stress of the broken noodles,the stress in the earth’s crust,and the parameters of the soil mechanics.According to the data of the stress in the earth’s crust and the rock parameters,this paper carried on the estimate analysis of the rock explode,and provided the scientific basis and technological support for the design and construction of the tunnel engineering.更多还原