浅谈CRD法在铁路隧道施工中的应用

On application of CRD method in railway tunnel construction

以宜万铁路赵家岭隧道为例,介绍了大断面铁路隧道在破碎岩体中的施工工法——CRD法。实践表明:CRD法适用于岩体破碎,围岩等级低的大断面隧道施工,施工进度快,施工安全度高,可推广应用。

Taking Zhaojialing tunnel in Yi-Wan railway as an example, the author introduces the construction method of the large .section rail- way tunnel in the broken rock, the CRD method, the practice shows that the CRD method is suitable for crushing rocks and the large section railway tunnel construction with the low class surrounding rock, the construction progress is rapid, the level of the construction safety is high, which is worth popularizing.