摘要
龙象公路在象山煤矿东侧下穿侯西铁路、运煤专线及编组站专用线等5条铁轨,公路设置2-14m框架下穿铁路。针对本项目为大跨度框架下穿铁路5股道顶进施工,施工难度高,安全压力大。通过采取纵横抬梁法+吊轨梁对既有铁路5股道进行线路加固,并顶进中运用了石蜡、黄油及塑料薄膜组成复合滑动层,滚杠、定向滑轮等措施,减小了框构桥顶进施工时的摩阻力,加快了施工进度,提高了顶进过程的安全性。
On the east side of Xiangshan Coal Mine,Longxiang Highway passes through five railroad tracks,including the Houxi Railway,the coal-specific line and the marshalling station.The road is set up under the framework of 2-14m.For the project,the construction of the 5-span railway under the long-span framework is difficult,and the construction is difficult and the safety pressure is high.By adopting the vertical and horizontal beam lifting method+hanging rail beam to strengthen the line of the existing 5 railways,and using the paraffin,butter and plastic film to form a composite sliding layer,rolling bars,directional pulleys,etc.,the frictional resistance during the construction of the frame bridge is reduced,the construction progress is accelerated,and the safety of the jacking process is improved.
作者
魏亚茹
WEI Ya-ru(The Fourth Engineering Co.,Ltd. of China Railway First Group,Xianyang 712000,China)
出处
《价值工程》
2019年第19期162-165,共4页
Value Engineering
关键词
大跨度框架
顶进施工
线路加固技术
减摩措施
long-span framework
tunneling
line reinforcement technology
anti-friction measures
作者简介
魏亚茹(1984-),女,陕西蒲城人,毕业于哈尔滨工业大学,研究方向为施工技术。
