介绍了破碎岩层中小断面坑道的爆破参数和施工技术。
The paper introduced the blasting parameters and construction technology for small section tunnel in crumbly strata.
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。
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.
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