吐库二线中天山隧道富水段开挖实施效果分析

Analysis of excavation implementation effect on Turpan-Korla 2nd Line Zhongtianshan tunnel water-rich section

针对前期已得到的南疆铁路吐库二线中天山特长隧道高压富水段超前注浆堵水试验结果,对开挖方案进行了确定,并根据泄压孔施工情况和开挖施工过程,得到了初期支护参数及设置方法,对施工安全性及进展进行了预测,并对富水段开挖结果进行了分析,以供类似工程参考借鉴。

According to the southern Xinjiang railway line has been spit library early in the Turpan-Korla 2nd Line Zhongtianshan high-pressure water-rich section of tunnel advance grouting test results, the excavation scheme is determined, and the pressure relief hole construction and exca- vation construction process according to the obtained paranleters, initial support and setting method, and progress on construction safety of predic- tion, and the water-rich section excavation results are analyzed, so as to provide reference for similar engineering.