降雨入渗作用下秭归向斜核部南段斜坡稳定性评价

齐信; 刘广宁; 黄波林; 王世昌; 黄长生

doi:10.13961/j.cnki.stbctb.2017.03.017

您当前的位置：

首页 >

文章列表页 >

降雨入渗作用下秭归向斜核部南段斜坡稳定性评价

实验研究

- 降雨入渗作用下秭归向斜核部南段斜坡稳定性评价
- Slope Stability Evaluation of Southern Section of Zigui Syncline Core Under Rainfall Infiltration
- 水土保持通报 2017年37卷第3期页码：97-101
- 作者机构：
  
  中国地质调查局武汉地质调查中心,湖北,武汉,430205
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目“基于水波动力学的水库崩塌滑坡涌浪研究”（41372321）;中国地质调查局灾害预警项目（12120114079301）;水工环调查项目（DD20160257）
- DOI：10.13961/j.cnki.stbctb.2017.03.017
  中图分类号：
- 纸质出版：2017
- 稿件说明：
移动端阅览
齐信, 刘广宁, 黄波林, 等. 降雨入渗作用下秭归向斜核部南段斜坡稳定性评价[J]. 水土保持通报, 2017,37(3):97-101.

QI Xin, LIU Guangning, HUANG Bolin, et al. Slope Stability Evaluation of Southern Section of Zigui Syncline Core Under Rainfall Infiltration[J]. Bulletin of Soiland Water Conservation, 2017, 37(3): 97-101.
齐信, 刘广宁, 黄波林, 等. 降雨入渗作用下秭归向斜核部南段斜坡稳定性评价[J]. 水土保持通报, 2017,37(3):97-101. DOI： 10.13961/j.cnki.stbctb.2017.03.017.

QI Xin, LIU Guangning, HUANG Bolin, et al. Slope Stability Evaluation of Southern Section of Zigui Syncline Core Under Rainfall Infiltration[J]. Bulletin of Soiland Water Conservation, 2017, 37(3): 97-101. DOI： 10.13961/j.cnki.stbctb.2017.03.017.

摘要

[目的] 开展降雨条件下湖北省秭归县向斜核部斜坡稳定性评价研究，为政府部门减灾防灾工程提供科学支持，为滑坡灾害的预测和管理提供科学依据。[方法] 以耦合了地下水动力学的TRIGRS无限斜坡稳定性计算模型为基础，详细介绍了斜坡稳定性评价的数据处理过程以及参数选取方法。[结果] 发生斜坡失稳的区域多位于松散土体中等厚-较厚，地形坡度中等的区域，尤其是土层厚度在7-10 m，地形坡度在20°~30°范围内为斜坡失稳高发区。[结论] 在土层厚度和地形地貌的双重控制下，短历时强降雨入渗作用导致孔隙水压力增大，这些区域的斜坡土体极易发生滑动，为滑坡危险性较高的多发区域。斜坡稳定性评价结果和滑坡实际分布吻合程度较高，在一定程度上反映出降雨诱发滑坡空间分布关系和分布规律。

Abstract

[Objective] The main stream of synclinal basin core in Zigui County of Hubei Province was selected as an case study area

and the slope stability evaluation under transient rainfall infiltration was carried out to provided scientific support for disaster prevention and mitigation projects of government departments

and to provide scientific basis for landslide hazard prediction and management.[Methods] Based on TRIGRS infinite slope stability calculation model coupled with groundwater dynamics

the data processing procedure and parameter selection methods of the slope stability evaluation tool was introduced in detail.[Results] Slope instability mainly located in the region with loose soil having medium thick or thicker layer

and medium slope

especially in the region having soil thickness of 7 to 10 m

and terrain slope ranged 20° to 30°

where were high incidence areas of slope instability.[Conclusion] Under the synergic effects of soil layer thickness and topography

short-duration but heavy rainfall can lead to the increase of pore-water pressure

where slope sliding happen easily

which was determined as landslide high risk area. The slope stability evaluation results were in good agreement with the actual distribution of landslides

and it can reflect the spatial distribution of rainfall-induced landslides to some extent.

关键词

Keywords

references

黄润秋.20世纪以来中国的大型滑坡及其发生机制[J].岩石力学与工程学报,2007,26(3):433-455.

李媛,孟晖,董颖,等.中国地质灾害类型及其特征:基于全国县市地质灾害调查成果分析[J].中国地质灾害与防治学报,2004,15(2):29-31.

Dietrich W E, Reiss R, Hsu M L, et al. Aprocess-based model for colluvial soil depth and shallow landsliding using digital elevation data[J]. Hydrological Processes, 1995,9(3/(4):383-400.

Pack R T, Tarboton D G, Goodwin C N. The SINMAP approach to terrain stability mapping[C]//8 th Congress of the International Association of Engineering Geology. Columbia:Vancouver, 1998.

Baum R L, Savage W Z, Godt J W, et al. TRIGRS:A Fortran program for transient rainfallinfiltration and grid-based regional slope-stability analysis[R]. Colorado:US Department of the Interior and US Geological Survey, 2002.

Baum R L, Savage W Z, Godt J W. TRIGRS:A Fortran program for transient rainfall infiltration and grid-based regional slope-stability analysis, version 2.0[R]. Colorado:US Department of theInterior and US Geological Survey, 2008.

Tarolli P, Borga M, Chang K T, et al. Modelling shallow landsliding susceptibility by incorporating heavy rainfall statistical properties[J]. Geomorphology, 2011,133(3/4):199-211.

兰恒星,伍法权,周成虎,等.GIS支持下的降雨型滑坡危险性空间分析预测[J].科学通报,2003,48(5):507-512.

Godt J W, Baum R L, Savage W Z, et al. Transient deterministic shallow landslide modeling:Requirements for susceptibility and hazard assessments in a GIS framework[J]. Engineering Geology, 2008,102:214-226.

李秀珍,何思明,王震宇,等.降雨入渗诱发斜坡失稳的物理模型适用性分析[J].灾害学,2015,30(1):34-38.

张桂荣,程伟.降雨及库水位联合作用下秭归八字门滑坡稳定性预测[J].岩土力学,2011,32(S1):476-482.

陈崇希,林敏,成建梅.地下水动力学[M].5版.北京:地质出版社,2011:100-110.

Liu Chianan, Wu Chiachen. Mapping susceptibility of rainfall-triggered shallow landslides using a probabilistic approach[J]. Environ Geology, 2008,55(4):907-915.

Salciarini D, Godt J W, Savage W Z, et al. Modeling landslide recurrence in Seattle, Washington, USA[J]. Engineering Geology, 2008,102(3):227-237.

浏览量

1295

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

基于PLUS-InVEST模型的江西省萍乡市碳储量时空演变与多情景模拟

季节性干旱对中国陆地生态系统碳-水耦合机制的影响

西北地区生态产品价值实现成效评价——基于29个典型案例

基于生态系统服务和生态敏感性评价的云中山-系舟山生态网络构建

不同恢复措施对新疆伊犁退化草地植被特征及多样性的影响