摘要
重庆铁路枢纽东环线位于重庆市主城区。本项目为东环线起点,接渝黔铁路的珞璜南站,与在建渝黔铁路并行正线长度约3.48 km,临近既有线施工主要安全隐患有路基土石方开挖造成的危岩落石和设备侵限、桥梁基坑开挖造成既有线桥梁承台外露悬空及路基附属桩板墙施工造成吊装设备侵限、倾覆等。本文结合工程实际,详细论述临近既有线施工的安全防护措施及施工控制要点,为同类工程提供借鉴。
The east-ring line of Chongqing railway hub is located in Chongqing urban area. This project is starting from the east-ring line, connecting with Luohuang South Station in Chongqing-Guizhou Railway, with a length of 3.48 km parallelling to the building railway. The main safety problems on constructing adjacent to existing lines are falling rocks and equipment invasion caused by the earth work excavation, exposed cushion cap due to the bridge foundation pit excavation, and hoisting equipment invasion and overturning caused by the construction of subgrade subsidiary pile wall. Combined with the engineering practice, this paper discusses in detail the safety protection measures and construction control key points near existing lines in construction, which would provide a reference for similar projects.
作者
林新兵
Lin Xinbing(China Railway 15th Bureau Group Third Engineering Co. Ltd. , Chengdu Siehuan 611731, China)
出处
《铁道建筑技术》
2018年第3期117-120,共4页
Railway Construction Technology
关键词
临近既有线
安全防护
施工控制
adjacent to existing line
safety protection
construction control
