Unsaturated Seepage Analysis of Fractured Rock Slope Under Rainfall Condition

YANG Xiuzhu; KANG Jing; LIU Zhengfu; LEI Jinshan

doi:10.13961/j.cnki.stbctb.2016.04.026

您当前的位置：

首页 >

文章列表页 >

Unsaturated Seepage Analysis of Fractured Rock Slope Under Rainfall Condition

- Unsaturated Seepage Analysis of Fractured Rock Slope Under Rainfall Condition
- Bulletin of Soiland Water Conservation Vol. 36, Issue 4, Pages: 143-147(2016)
- 作者机构：
  
  1. 中南大学土木工程学院,湖南,长沙,410075
  2. 江苏省交通科学研究院,江苏,南京,210004
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2016.04.026
  CLC：
- Published：2016
- 稿件说明：
移动端阅览
YANG Xiuzhu, KANG Jing, LIU Zhengfu, et al. Unsaturated Seepage Analysis of Fractured Rock Slope Under Rainfall Condition[J]. Bulletin of Soiland Water Conservation, 2016, 36(4): 143-147.
DOI：

YANG Xiuzhu, KANG Jing, LIU Zhengfu, et al. Unsaturated Seepage Analysis of Fractured Rock Slope Under Rainfall Condition[J]. Bulletin of Soiland Water Conservation, 2016, 36(4): 143-147. DOI： 10.13961/j.cnki.stbctb.2016.04.026.

摘要

[目的

]

研究降雨入渗过程中，裂隙岩质边坡渗流场和暂态饱和区的变化规律，为裂隙岩体降雨入渗规律、工程技术及水土保持方面的研究提供支持。[方法

]

基于非连续裂隙模型，采用Matlab编制裂隙岩体渗透张量的计算程序；基于等效连续介质渗流模型，采用FLAC

内置的FISH语言编制程序进行非饱和渗流分析。[结果

]

依托实际工程分析得出了裂隙岩体的渗透张量，在降雨过程中随着降雨强度的增加或者降雨时间的延长，边坡表层区域零孔隙水压力面不断向内部发展，暂态饱和区的范围不断扩大，且暂态饱和区的出现发生在降雨强度大于边坡的入渗率的情况。[结论

]

采用非连续裂隙网络模型和等效连续介质渗流模型对裂隙岩质边坡降雨入渗分析能较好反映裂隙岩体各向异性和非饱和渗流的特点。

Abstract

[Objective] Exploring the variation process of seepage field and transient saturated zone of fractured rock slope under the influence of rainfall to provide support for the study of the law of rainfall infiltration

engineering technology and water conservation. [Methods] Based on discontinuous fracture network model

a Matlab program was designed to calculate the permeability tensor. Based on equivalent continuous medium model

a program using FISH language was designed for unsaturated seepage analysis. [Results] Permeability tensor of fractured rock mass was obtained through the engineering case. With the increase of rainfall intensity and rainfall duration

the surface of zero pore water pressure will extend to the inside of the slope and the scope of transient saturated zone will expand. Moreover

the appearance of transient saturated zone will occur in the case when rainfall intensity is greater than the the infiltration rate of the slope. [Conclusion] The characteristics of anisotropic and unsaturated seepage in fractured rock mass can be better elucidated by using discontinuous fracture network model and equivalent continuous medium model and the models can be used to analyze the rainfall infiltration of fractured rock slope.

关键词

Keywords

references

刘子振.持续降雨入渗非饱和黏土边坡失稳机理及其应用研究[D].甘肃兰州:兰州大学,2014.

张升堂,拜存有,万三强.黄土高原水土保持措施强化降雨入渗分析及灰色预测[J].水土保持通报,2004,24(2):29-33.

高鹏,穆兴民,刘普灵,等.降雨强度对黄土区不同土地利用类型入渗影响的试验研究[J].水土保持通报,2006,26(3):1-5.

张有天.岩石水力学与工程[M].北京:中国水利水电出版社,2005.

Long J C S, Remer J S, Wilson C R, et al. Porous media equivalents for networks of discontinuous fractures[J]. Water Resources Research, 1982,18(3):645-658.

刘海军.基于蒙特卡罗法的岩体裂隙网络模型及渗透张量的研究[D].黑龙江哈尔滨:哈尔滨工业大学,2011.

刘晓丽,王恩志,王思敬.裂隙岩体表征方法及岩体水力学特性研究[J].岩石力学与工程学报,2008,27(9):1814-1821.

陈育民. FLAC/FLAC

基础与工程实例[M].北京:中国水利水电出版社,2009.

李毅,伍嘉,李坤.基于FLAC

的饱和-非饱和渗流分析[J].岩土力学,2012,33(2):617-622.

蒋忠明,熊小虎,曾铃.基于FLAC

平台的边坡非饱和降雨入渗分析[J].岩土力学,2014,35(3):855-861.

Genuchten M T V. A Closed-form Equation for Predicting the Hydraulic Conductivity of Unsaturated Soils[J]. Soil Science Society of America Journal, 1980,44(5):892-898.

柴军瑞,徐维生.大坝工程渗流非线性问题[M].北京:中国水利水电出版社,2010.

Views

1552

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Experimental Study of Runoff Processes on Bare Loess Hillslope

Influence of Rainfall on Loess Slope Stability

Ecological Protection of Side Slope in Beijing—Zhuhai Expressway in Guangdong

Soil Erosion Processes on Sloping Grassland in Heaven Lake Nature Reserve of Xinjiang Wei Autonomous Region

Assessment on Methods of Analyzing Slope( Landslide) Stability Under Earthquake and Rainstorm

Related Author

WANG Zhan-li

HUANG Xin-hui

ZHANG Zhen-guo

NIU Zhen-hua

TIAN Feng-xia

ZHANG Shao hong

KANG Shun xiang

LI Yong hong

Related Institution

State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling District

College of Water Resources and Architectural Engineering, Northwest University of Agriculture and Forestry, Yangling

Guangzhou Eco-environmental Afforestation Go. Ltd

Guangdong Institute of Eco-environment and Soil Science, Guangdong Key Laboratory of Integrated Control Agro-environment

Shihezi University

⁰