Coupled analysis of fracture rock mass slope saturated-unsaturated seepage field and stress field in flood discharge atomized rain area

WANG Huan-ling   XU Wei-ya   TONG Fu-guo

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Coupled analysis of fracture rock mass slope saturated-unsaturated seepage field and stress field in flood discharge atomized rain area

更新时间：2026-06-25

- Coupled analysis of fracture rock mass slope saturated-unsaturated seepage field and stress field in flood discharge atomized rain area
- Vol. 29, Issue 9, (2008)
- 作者机构：
  
  1. 河海大学交通学院,南京,210098
  2. 河海大学岩土工程研究所,南京,210098
- 作者简介：
- 基金信息：
- DOI：
  CLC： O357
- Online First：03 August 2013，
  
  Published：2008
- 稿件说明：
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WANG Huan-ling XU Wei-ya TONG Fu-guo. Coupled analysis of fracture rock mass slope saturated-unsaturated seepage field and stress field in flood discharge atomized rain area[J]. 2008, 29(9).
DOI：

WANG Huan-ling XU Wei-ya TONG Fu-guo. Coupled analysis of fracture rock mass slope saturated-unsaturated seepage field and stress field in flood discharge atomized rain area[J]. 2008, 29(9). DOI：

摘要

岩质滑坡除与地质条件、降雨等因素有关外，泄洪雾雨也成为其不可忽视的催化剂。通过裂隙岩体渗透性与应力关系，裂隙岩体的弹塑性本构关系以及渗流场的控制方程，建立起饱和非饱和渗流场与应力场耦合的等效连续介质模型。编制了有泄洪雾雨影响的饱和-非饱和渗流与应力耦合三维有限元程序，通过迭代求解达到两场耦合目的。以实际工程为例，根据边坡的地表信息、开挖信息、岩层分界信息以及排水洞和帷幕信息等，建立起边坡地质模型。通过耦合计算，详细分析了耦合后边坡岩体的变形、应力以及塑性区等。计算结果表明，雾雨区的边坡稳定与渗流场变化有着重要关系，在评价边坡稳定与否时，要考虑渗流场对其影响。计算成果为实际工程的安全评价提供了一定的科学依据。

Abstract

Flood discharge atomized rain is the non-neglectable activator for rock mass landslide

which besides the rainfall. At first

through the relation between seepage characters of fracture rock mass and stress

elastic-plastic constitutive equation of fracture rock mass and control equation of seepage field

the equation continue media model of seepage and stress field coupling is established. Secondly

a 3-D finite element program of saturated-unsaturated seepage and stress coupling under atomized rain programmed

the two-field coupling is solved by iteration method. Finally

taking a typical project for example

the geological model is established according to the earth’s surface information

excavation information

terrane borderline information

drainage hole and purdah information; the rock mass deformation

stress and plastic area are analyzed in detail by coupling computation

the analysis shows that the slope stability has closely related with the change of saturated-unsaturated seepage field of rock mass system; the seepage field of rock mass system must be considered when estimating slope stability. The result can provide some scientific foundation for project slope stability estimation.

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Related Institution

河海大学交通学院1，河海大学岩土工程研究所2

College of Earth Sciences and Engineering, Hohai University

State Key Laboratory of Hydrology, Water Resources and Hydraulic Engineering, Hohai University

College of Civil and Transportation Engineering, Hohai University

Institute of Mechanics, Chinese Academy of Sciences

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