云南思小高速公路白花山隧道围岩稳定性研究

Surrounding rock stabilization of Baihuashan Tunnel of Si-Xiao express way in Yunnan Province

根据白花山隧道中导洞开挖过程的实际情况,在隧道开挖期间,采用地质素描法对隧道进行详细的地质描述,同时对地层、岩性、构造、地下水、围岩和边坡的变形破坏现象进行分析,对该隧道的地质条件有了更为详尽和准确地认识,然后提出了合理建议。

With the increasing of tunnel construction,tunnel’s safety and stability are even important. Especially,the problem of safety and stability of some tunnels with shallow ambush, softing surrounding rocks and short length are paid close attention.The paper is based on the fact that center-tunnel of Baihuashan Tunnel is excavated. In the course of excavating, failure detailed geology description was including properties of rock,structure, ground water, failure and deformation of slope and surrounding rocks from which exhaustive knowledge about the geology of the tunnel was got. According to the description and analysis, reasonable suggestions and conclusions were proposed.They have important significance to unsure the safety and stability of the tunnel in after working on,and have also some reference value to other tunnels.