青海循化县查汗都斯水库滑坡形成条件与稳定性分析

张淼; 张春山; 杨为民; 王秋梅; 刘玄; 刘廷

青海循化县查汗都斯水库滑坡形成条件与稳定性分析

张淼^{1, 2,},
张春山¹,
杨为民¹,
王秋梅²,
刘玄²,
刘廷²

1.
中国地质科学院地质力学研究所, 北京 100081
2.
中国地质大学地球科学与资源学院, 北京 100083

基金项目:

中国地质调查局地质调查项目 1212011220087

国家科技支撑项目 2012BAK10B03-03

国土资源部行业公益专项 201211095-3

详细信息

作者简介:
张淼(1991-), 男, 硕士研究生, 主要从事构造地质与地质灾害研究工作。E-mail:mz0546@163.com

中图分类号: P642.22
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- PDF下载量: 14
- 被引次数: 0
出版历程
- 收稿日期: 2014-04-15
- 刊出日期: 2014-09-28

THE FORMATION CONDITIONS AND STABILITY OF CHAHANDUSI RESERVOIR LANDSLIDE IN XUNHUA COUNTY, QINGHAI PROVINCE

1.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
2.
School of Geosciences and Resources, China University of Geosciences, Beijing 100083, China

摘要

摘要: 在开展循化县查汗都斯水库滑坡野外调查及工程地质调查的基础上, 简述了滑坡的发育特征、探讨了滑坡的形成条件, 进行了稳定性分析。研究表明, 地形地貌、地层岩性、地震活动及降水是该滑坡形成的主要因素。本文采用毕肖普法对该滑坡按天然状态和饱水状态两种工况进行稳定性计算, 采用ANSYS软件进行二维数值模拟分析, 所有结果均显示该滑坡目前处于基本稳定-稳定状态。建议对滑坡进行必要的监测或群测群防。
- 查汗都斯水库 /
- 滑坡 /
- 形成条件 /
- 稳定性分析
Abstract: Based on the field work and engineering geologic investigation of Chanhandusi Reservoir Landslide in Xunhua County, this paper focuses on the development characteristics, formation conditions and stability analysis of this landslide. The result shows that this landslide is mainly influenced by landforms, stratum lithology, earthquake and hydrology. ANSYS is used for the stability analysis, which suggests that Chahandusi Reservoir Landslide is currently under stable state. It is necessary for landslide monitoring.
- Chanhandusi reservoir landslide /
- formation conditions /
- stability analysis /

HTML全文

图 1 查汗都斯水库滑坡平面图

Figure 1. Planar graph of Chanhandusi Reservoir Landslide

下载: 全尺寸图片幻灯片

图 2 查汗都斯水库滑坡剖面图

Figure 2. Profile graph of Chanhandusi Reservoir Landslide

下载: 全尺寸图片幻灯片

图 3 滑面1计算结果

Figure 3. The result of slip surface 1

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图 4 查汗都斯水库滑坡位移云图

Figure 4. Displacement nephogram of Chanhandusi Reservoir Landslide

下载: 全尺寸图片幻灯片

图 5 查汗都斯水库滑坡剪应力云图

Figure 5. Shear stress nephogram of Chanhandusi Reservoir Landslide

下载: 全尺寸图片幻灯片

表 1 滑体土及滑带土物理力学参数

Table 1. Physical and mechanical parameters of the landslide soil and slip soil

	比重	孔隙比	天然含水量/%	干重度/(kN·m ^-3)	天然重度/(kN·m ^-3)
滑体土	2.71	0.78	11.90	15.2	17.1
滑带土	2.68	0.45	7.07	18.5	19.4

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表 2 滑体土及滑带土物理学指标

Table 2. Physical indexes of the landslide soil and slip soil

	内摩擦角φ/(°)		内聚力C/kPa
	固结快剪	饱和固结快剪	固结快剪	饱和固结快剪
滑体土	29.0	28.0	8.5	7.0
滑带土	27.5	20.4	9.3	6.7

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表 3 自然状态(工况1)下稳定性计算结果

Table 3. Stability calculation result under natural state

滑面/F_S	Bishop	Janbu	Morgenstern-Price	稳定状态
1	1.277	1.125	1.220	稳定
2	6.042	5.443	5.818	稳定
3	4.784	4.182	4.777	稳定

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表 4 饱水状态(工况2) 下稳定性计算结果

Table 4. Stability calculation result under water saturated state

滑面/F_S	Bishop	Janbu	Morgenstern-Price	稳定状态
1	1.099	0.934	1.073	基本稳定
2	4.800	4.400	4.806	稳定
3	4.784	3.394	3.864	稳定

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