# [1]黎春林,缪林昌.盾构施工渗流场有限元模拟及其对临近土层的影响分析[J].东南大学学报(自然科学版),2010,40(5):1066-1072.[doi:10.3969/j.issn.1001-0505.2010.05.035] 　Li Chunlin,Miao Linchang.Finite element simulation of seepage field and analysis of soil deformation around tunnel due to shield tunneling[J].Journal of Southeast University (Natural Science Edition),2010,40(5):1066-1072.[doi:10.3969/j.issn.1001-0505.2010.05.035] 点击复制 盾构施工渗流场有限元模拟及其对临近土层的影响分析() 分享到： var jiathis_config = { data_track_clickback: true };

40

2010年第5期

1066-1072

2010-09-20

## 文章信息/Info

Title:
Finite element simulation of seepage field and analysis of soil deformation around tunnel due to shield tunneling

1 东南大学岩土工程研究所,南京 210096; 2 铜陵学院土木建筑系,铜陵 244000
Author(s):
1 Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China
2 Department of Civil and Structural Engineering, Tongling University, Tongling 244000, China

Keywords:

U459.5
DOI:
10.3969/j.issn.1001-0505.2010.05.035

Abstract:
Based on the similarity of the governing equations and boundary conditions between the temperature field and seepage flow field, the numerical simulation of the seepage flow field in shield tunneling was carried out. The characteristics of seepage field around shield tunnel were analyzed by the FEM(finite element method)software ANSYS function of temperature field analysis, and a seepage program was developed using program redevelopment language APDL(ANSYS parametric design language)of ANSYS. The seepage force is calculated first in the flow field and then added to the stress field. Subsequently, the deformation and stress distribution around the tunnel can be achieved with the consideration of seepage flow. The calculation results show that the seepage force has a significant effect on the tunnel face stability when the groundwater table is above the tunnel crown. In this case, seepage causes the soil deformation with sliding to soil chamber in front of the working surface of the tunnel. Moreover, maximum shear stress caused by seepage is observed at arch crown and invert of the tunnel, and maximum shear stress is approximately proportional to the difference of hydraulic head inside and outside the chamber. Seepage enlarges the extent and range of construction disturbance. Compared with the case without ground water, the influence of seepage force should be taken into account in the analysis of the workface stability and ground surface deformation, and the seepage force can be balanced by increasing the supporting pressure in the chamber.

## 参考文献/References:

[1] Buhan P D,Culvillier L,Dormieux L,et a1.Face stability of shallow circular tunnels driven under the water table:a numerical analysis [J].International Journal for Numerical and Analytical Methods in Geomechanics,1999,23(1):79-95.
[2] Lee I M,Nam S W.The study of seepage forces acting on the tunnel lining and tunnel face in shallow tunnels [J].Tunneling and Underground Space Technology,2001,16(1):31-40.
[3] Kasper T,Meschke G.A numerical study of the effect of soil and grout material properties and cover depth in shield tunneling[J].Computers and Geotechnics,2006,33(4):234-247.
[4] 吉小明,王宇会.隧道开挖问题的水力耦合计算分析 [J].地下空间与工程学报,2005,1(6):848-852.
Ji Xiaoming,Wang Yuhui.Hydromechanical coupling analysis of tunnel excavation process[J].Chinese Journal of Underground Space and Engineering,2005,1(6):848-852.(in Chinese)
[5] 李建波,陈健云,李静.渗流场对地铁隧道沉降与受力影响的流固耦合分析 [J].防灾减灾工程学报,2008,28(4):441-446.
Li Jianbo,Chen Jianyun,Li Jin.Coupled fluid-mechanical analysis of settlement and stability of subway tunnel [J].Journal of Disaster Prevention and Mitigation Engineering, 2008,28(4):441-446.(in Chinese)
[6] 许玉景,孙克俐,黄福才.ANSYS软件在土坝渗流稳定计算中的应用 [J].水力发电,2003,29(4):69-71.
Xu Yujing,Sun Keli,Huang Fucai.Application of ANSYS in the earth dam seepage flow stability computation [J].Journal of Hydroelectric Engineering,2003,29(4):69-71.(in Chinese)
[7] 蒙富强.基于ANSYS的土石坝稳定渗流的数值模拟 [D].大连:大连理工大学土木水利学院,2005.
[8] 李耀柱,林钢.基于ANSYS温度场模拟的均质土坝稳定渗流数值计算[J].水运工程,2009,424(2):48-51.
Li Yaozhu,Lin Gang.Computation of stable seepage flow of the homogeneous earth dam based on the ANSYS function of temperature field analysis [J].Port and Waterway Engineering,2009,424(2):48-51.(in Chinese)