盾构推进对既有隧道影响的渗流与结构耦合研究  

Study on Seepage and Structure Coupling by Influence of Shield Tunneling on Existing Tunnel

作　　者：蒋洪进[1,2] 周松[1,2] 黄醒春[1] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海市200240 [2]上海市第二市政工程有限公司,上海市200065

出　　处：《城市道桥与防洪》2009年第3期105-108,共4页Urban Roads Bridges & Flood Control

摘　　要：在上海西藏南路越江隧道西线Φ11580泥水盾构近距离下穿上海地铁已建M8线隧道的过程中,通过布置在M8线内的高精度电子水准尺连续采集了大量的可靠数据,清晰地观测到了M8线上行线隧道随着盾构推进-拼装周期产生的隆沉。该文以实测数据为基础,通过渗流与结构耦合数值模拟方法,研究了西藏南路盾构穿越过程中既有M8线位移变化以及周围土体位移与孔压变化。In the course of Φ11580 slurry shield of the west line of Xizang Road (S) Crossing-river Tunnel underpassing the built M8 Line Tunnel of Shanghai in the short distance, and according to the mass reliable data continuously collected by the high-precision electron leveling rod arranged in M8 Line, it is clearly to observe the fluctuation of the uplink tunnel of M8 Line produced with the shield pushing assembly by period. Based on the measured data, the article studies the displacement changing of the existing M8 Line, the displacement of the surrounding soil body and the changing of pore pressure in the course of the shield pushing in Xizang Road (S) by the seepage and structure coupling value simulating method.

关 键 词：泥水平衡盾构 超孔隙水压力 渗流结构数值模拟 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]