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四角田隧道围岩稳定性三维有限元数值分析
引用本文:周小平,徐小敏.四角田隧道围岩稳定性三维有限元数值分析[J].重庆建筑大学学报,2006,28(1):59-62.
作者姓名:周小平  徐小敏
作者单位:重庆大学,土木工程学院,重庆,400045
摘    要:云南大保高速公路四角田隧道地处峡谷地带,工程地质条件比较复杂,且地表水丰富.结合四角田隧道的工程实况,利用Drucker-Prager屈服准则,运用有限元法对该隧道进行三维非线性有限元模拟分析,以评价其整体稳定性.根据计算分析结果,指出了隧道的相对危险区域,确定了实地重点监测的范围,同时对同类工程也具有一定的指导意义.

关 键 词:四角田隧道  围岩稳定性  三维非线性有限元
文章编号:1006-7329(2006)01-0059-04
收稿时间:2005-08-28
修稿时间:2005年8月28日

Numerical Analysis on Stability of Rock in Sijiaotian Tunnel
ZHOU Xiao - ping,XU Xiao - min.Numerical Analysis on Stability of Rock in Sijiaotian Tunnel[J].Journal of Chongqing Jianzhu University,2006,28(1):59-62.
Authors:ZHOU Xiao - ping  XU Xiao - min
Affiliation:College of Civil Engineering, Chongqing University, Chongqing 400045, P. R. China
Abstract:The Sijiaotian Tunnel in Yunnan Dabao Highway lies in the narrow defile landscape,and the engineering geology condition is complex,with plenty of cienega.According to the actual situation of the Sijiaotian Tunnel Project in Yunnan Dabao Highway,the stability of the surrounding rock mass is studied by using a 3-D non-linear FEM.The Drucker-Prager criterion is chosen as the failure criterion of the rock.The relatively dangerous zone and the monitoring points in the tunnel are determined.The numerical results show that the Sijiaotian Tunnel is relatively stable.The conclusion has some significance for guiding the construction of similar projects.
Keywords:Sijiaotian Tunnel  stability of the surrounding rockmass  3-D nonlinear finite element method
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