天然气管道盾构穿越长江竖井支护数值模拟分析  

Numerical Simulation Analysis on Shaft Support Natural Gas Pipeline Shield-Crossing the Changjiang River

作　　者：苏卫锋[1] 何伟[1] 曾志华[1] 韩冰[2] 

机构地区：[1]中国石油天然气管道工程有限公司,河北廊坊065000 [2]中国石油管道研究中心,河北廊坊065000

出　　处：《管道技术与设备》2009年第1期9-10,28,共3页Pipeline Technique and Equipment

摘　　要：盾构法施工技术近年来在国内外隧道工程中得到广泛应用,而竖井是整个盾构工程顺利实施的重要环节。为了保证竖井衬砌支护既经济又安全,采用flac3D软件对川气出川天然气管道工程宜昌长江穿越盾构北岸竖井开挖及支护进行模拟,通过对不同支护情况下位移、应力及塑性区进行比较分析,得出了较为理想的衬砌支护厚度,为以后的盾构竖井工程设计提供了一定的借鉴。Shielding technology has been widely used in tunnel engineering at home and abroad in recent years, and the shaft is an important link to make the construction of shielding engineering successful. For the safety and economy of shaft support, the extraction and support of the north shaft was simulated with flac3D, through comparing and analyzing the displacements, stresses and plastic areas, an ideal support thickness is obtained, and a certain of reference is provided for the later shielding engineering.

关 键 词：FLAC3D 盾构 竖井 支护 

分 类 号：TE973.4[石油与天然气工程—石油机械设备]