有轨电车下穿高铁框构桥安全评估

Safety Evaluation of Modern Tramcar Crossingunder Highspeed Railway Frame Structure Bridge

沈阳有轨电车1号线一期工程在某处下穿哈大高铁框构桥,将对既有铁路产生一定的影响,可能会引起桥梁结构的沉降、变形。介绍了本工程的安全评估标准及其执行情况,指出有轨电车工程下穿高铁框构桥施工时的注意事项,建议在施工过程中加强第三方监测,重点对哈大高铁桥的沉降和水平变形进行监测。

A project in the 1st phase of Shenyang tramcar line crosses under the framestructure bridge of Ha＇erbin- Dalian high-speed railway, which may cause the deforma- tion and settlement of the bridge. The safety assessment criteriaand implementation of this project is introduced. lhe precautions in the case of tramcar crossing under rail- way bridge arc pointed out. Then, a third party survey in lramcar engineering is proposed, especially for the settle- merit of Ha＇erbin-Dalian high-speed railway bridge and tile horizontal deformation.