地铁下穿施工安全评价分析

Evaluation and Analysis on Subway Down-traversing Construction

地铁凭借其准时、舒适和便捷的特点受到越来越多的重视,城市地下交通建设规模快速发展,但许多城市由于前期规划不足,致使新建地铁下穿既有线路的情况越来越多.从国内典型地铁下穿既有建构筑物的案例分析着手,总结下穿施工中安全影响因素,提出安全评价方法和防护建议.

Subway has attracted more and more attention because of the features such as punctuality, comfort and convenience. With the rapid development of urban underground transportation construction, there are more and more new subway lines have to down -traversed the existing lines due to the lack of prophase programming in many cities. This paper is proceed from the domestic typical case analysis of the issue that subway down - traversed the existing buildings and structures. The safety factors of down - traversing construction are summarized. Some safety assessment methods and protection recommendations are also proposed.