7.7 Engineering geological assessment on surrounding rock stability of high water head pressure tunnel

7.7.1 In the assessment of surrounding rocks stability of steel linedtunnel, unit elastic resistance coefficient shall be adopted to assess thecapacity of resisting the radial direction deformation, in case thesurrounding rocks cannot totally bear the inn ......（本文共 2075 字 , 2 张图）     [阅读本文] >>