SUBSIDENCE OWING TO TUNNELING .1. ESTIMATING THE GAP PARAMETER
SUBSIDENCE OWING TO TUNNELING .1. ESTIMATING THE GAP PARAMETER
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DOI：
10.1139/t92-104
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发表时间：
1992-12-01
影响因子：
3.6
通讯作者：
LO, KY
中科院分区：
文献类型：
--
作者：
LEE, KM;ROWE, RK;LO, KY
描述了一种用于估计所谓间隙参数的简单的、基于数字的程序。间隙参数代表隧道顶部上方的垂直位移，是软土中隧道开挖造成的地面损失的量度。该参数是隧道掌子面三维弹塑性变形、隧道掘进机盾构和衬砌几何形状以及工艺的函数。然后，该参数可用于使用二维有限元方法或经验相关性来预测所产生的地面变形。
A simple, numerically based procedure for the estimation of the so-called gap parameter is described. The gap parameter represents the vertical displacement above the crown of the tunnel and is a measure of ground loss owing to tunnelling in soft ground. This parameter is a function of the three-dimensional elastoplastic deformation at the tunnel face, the tunnelling machine shield and lining geometry, and workmanship. This parameter can then be used to predict the resulting ground deformations using either two-dimensional finite element methods or empirical correlations.