铁路隧道软弱围岩浅埋段的施工工艺研究

Study on construction technology of railway tunnel at soft surrounding rock shallow-buried section

结合铁路隧道工程的模拟建设情况,对CRD施工方法和大拱脚台阶法两种施工工艺进行了对比分析,指出大拱脚台阶法的施工效果优于CRD施工方法,并就铁路隧道软弱围岩浅埋段的施工技术要点进行了研究,以期为今后的铁路隧道建设提供参考借鉴。

Combining with railway tunnel engineering simulating construction conditions,the paper compares and analyzes two construction technologies of CRD construction method and large-arch-foot benching method,and points out that： the construction effect of large-arch-foot benching method is superior to that of CRD construction method,and studies construction technology points of railway tunnel at soft surrounding rock shallow-buried section,with a view to provide some guidance for railway tunnel construction in future.