By means of the numerical simulation and spot measure, the safety and reliability to use CRD excavation method to building shallow big-span double-line tunnel under existing vibrant train load are tested.

• 并对具有土质、浅埋、双线大跨度以及既有线运营动荷载条件下，依靠监控量测数据分析，论证CRD工法原理、工艺应用于西北类似条件的地下工程施工安全性和可靠性。