【摘要】 通过资料收集及现场岩土勘察,对晋中某隧道在掘进98 m后,洞顶上覆土体发生沉降变形,洞体出现塑性变形及两侧拱腰处出现裂缝的原因进行了分析,并提出相应的治理措施,以解决隧道开挖过程中的围岩变形和裂缝等问题。更多还原

【Abstract】 By means of datum gathers the crag earth prospecting at field to adjust Jinzhong tunnel is living 98 m queen tunnellings.Covering the earth part of the body on the peak of hole happen subsiding the deformation.The hole part of the body has ariseed plastic deformation and reason that the two sides waist parts have ariseed the split to be analysed,moreover propose administering of relevant,so as to solve the rock deformed and crack in tunnel construcing,to solve the problems of coffer deformation and crack in tunnel excavation.更多还原