大断面箱涵施工中管棚的力学作用机理分析  

Mechanism Analysis of Pipe Roof Mechanics Action in Big-cross Section Box-culvert Advancing

作　　者：李超[1] 李九红[1] 王德法[1] LI Chao, LI Jiu-hong, WANG De-fa （Xi＇ an University of Technology, Xi＇ an 710048, China）

机构地区：[1]西安理工大学,陕西西安710048

出　　处：《电网与水力发电进展》2007年第3期52-54,共3页

摘　　要：以郑州一开封城市通道箱涵顶进工程为例．分析了大断面箱涵施工中管棚的力学作用机理。论述了管棚的加固和、承力作用，从理论上进行了管棚在箱涵顶进施工过程中的受力分析．结合工程的实际情况验证了管棚的承载作用。Taking the project of the highway from Zhengzhou to Kaifeng city applying the method of box-culvert advancing as an example, the mechanics action mechanism of the big cross section box-culvert advancing is analyzed. The action of the pipe roof reinforcement and supporting is firstly discussed and then the forces of the pipe roof in the process of the box-culvert advancing are theoretically analyzed. Finally, the bearing capacity of the pipe roof in the box-culvert advancing is proved.

关 键 词：管幕法 箱涵顶进 地表沉降 泥浆 弹性地基梁 姿态控制 

分 类 号：TM71[电气工程—电力系统及自动化]