摘要
文章以郑州市地铁一号线为工程背景,结合郑州区域性粉土地层的特点,运用有限元软件MIDAS/GTS建立地铁盾构施工的三维有限元模型,分析了盾构施工引起地表沉降的规律,并对影响地表沉降的因素,如轴线埋深、注浆作用、盾构顶推力和土体强度等进行了分析,得出了一些有意义的结论。
This paper takes the Zhengzhou No.1 Subway Line as an example,established model of shield construction with the help of finite-element software MIDAS/GTS combination with the silt layer characteristics of this regionai, deformation of the excavation and numerical simulalion analysis of ground surface settlement caused by shield construction law, and the impact of factors such as soil de- formation axis depth, grouting effect, Jacking force shield and soil strength were analyzed, at last this paper obtained some meaningful conclusions.
出处
《企业技术开发》
2011年第3期85-87,共3页
Technological Development of Enterprise
基金
河南工业大学科研基金项目(09XZZ051)
关键词
隧道
盾构施工
地表沉降
数值模拟
tunnel
shield construction
settlement of the ground surface
numerical simulation
