[1]杨悦.盾构法施工对地层位移影响的数值模拟[J].山东建筑大学学报,2014,(02):152-156.
 Yang Yue.Numerical Simulation of the Effects of Shield Construction on the Ground Movement of the Tunnel[J].Journal of Shandong jianzhu university,2014,(02):152-156.
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盾构法施工对地层位移影响的数值模拟
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
期数:
2014年02期
页码:
152-156
栏目:
研究论文
出版日期:
2014-04-15

文章信息/Info

Title:
Numerical Simulation of the Effects of Shield Construction on the Ground Movement of the Tunnel
作者:
杨悦
黑龙江科技大学 建筑工程学院,黑龙江 哈尔滨 15002
Author(s):
Yang Yue
School of Architecture and Civil Engineering, Heilongjiang University of Science and Technology,Harbin 150022 China
关键词:
盾构法地层沉降水平位移数值模拟
Keywords:
shield tunnelgroundsettlementhorizontal displacementnumerical simulation
分类号:
U45
文献标志码:
A
摘要:
隧道地层的初始应力、开挖形成的空间效应和开挖支护过程等都会对地层沉降和水平位移产生影响。文章通过建立反映工程特性的有限元模型,以隧道围岩中过横断面圆心的竖线和不过圆心的竖线为代表,用FLAC3D软件计算了各点的沉降和水平位移随开挖面前进的变化规律。结果表明:盾构法施工过程使开挖面前后的横断面都发生竖直方向和水平方向位移,隧道横断面变成横向长、竖向短的椭圆形,开挖过的断面距开挖面越远,椭圆变形越明显,同时向后的水平位移越大,未开挖面距开挖面越近,椭圆变形越大,同时向前的水平位移越大。
Abstract:
The initial ground stress,space effects of excavation and construction progress have many effects on  settlement  and  horizontal  movement  of  ground.  Finite  element  model  which  reflects
engineering characteristics is built in this paper.  Two vertical lines are selected as examples been studied.  The one is across the centre of the circle and the other one is not across the centre of the
circle.  FLAC3 D is used to calculate the variety law of settlement and horizontal movement as the excavation area goes ahead. The research results reveal that the vertical and horizontal displacement of ground occur with the shield tunnel excavation.  The cross sections become ovals which are long in vertical distance and short in horizontal distance.  The excavated  sections longer away from the excavation section  have  bigger  vertical  deformation  and  backward  horizontal  displacement.  The sections without excavation in shorter distance away from the excavation section have bigger vertical deformation and beforeward horizontal displacement.
更新日期/Last Update: 2014-05-26