extruding concrete tunnel lining 挤压混凝土衬砌 ; 挤压砼衬砌
tunnel lining concrete 隧道衬砌混凝土
It has been proved that GPR is a feasible method to inspect the structure of tunnel concrete lining.
使用地质雷达对隧道混凝土衬砌结构进行检测，实践证明技术方法是切实可行的。
Indoor experiment and application study shows it is an effective method for testing thickness of tunnel concrete lining.
室内试验和工程应用研究表明，该方法为隧洞混凝土衬砌厚度检测提供了一个有效的测试手段。
The dynamic finite element method is employed to analyze the failure mechanism of vaulted tunnel concrete lining and the factors influencing failure range under the impact of explosion.
运用动力有限元数值方法，研究了拱形坑道衬砌在爆破荷载作用下的破坏机理与影响破坏范围的主要因素。
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