水下盾构土仓压力变化对周围土体扰动的影响  

Affection of soil warehouses pressure changes of underwater EPB shield on surrounding soil disturbance

作　　者：欧阳刚杰 傅鹤林[2] 毛阿立[2] 

机构地区：[1]中铁隧道股份有限公司,河南郑州450000 [2]中南大学,湖南长沙510075

出　　处：《企业技术开发》2014年第4期8-12,共5页Technological Development of Enterprise

基　　金：复杂环境隧道修建与监测技术研究--铁路水下隧道盾构施工关键技术研究(2011G013-C)

摘　　要：文章以长株潭城际铁路湘江隧道为背景工程,采用FLAC3D数值方法模拟大直径土压平衡盾构穿越湘江堤坝的施工过程,建立了同时考虑岩土体力学特性和水体渗流规律的流固耦合模型,对盾构隧道施工各阶段模拟结果进行分析,为同类工程提供技术参考。This paper takes the shield construction of Xiangjiang River tunnel of Chang-Zhu-Tan Intercity Railway as an example, simulates the construction process of large-diameter earth pressure balance shield passing through the Xiangjiang River dam using the FLAC3D numerical method, builds fluid-solid coupling model which takes both mechanical properties of rock and soil and law of water seepage into account and also analyzes the stimulated result of each construction stage of shield tunnel,to provide technical references for similar project.

关 键 词：水下隧道 扰动效应 土仓压力 

分 类 号：U459.5[建筑科学—桥梁与隧道工程]