樟木堆积体斜坡动力稳定性与极限承载力评价

王海芝; 王颂; 周剑; 张路青; 黄福有

doi:10.19751/j.cnki.61-1149/p.2022.01.023

樟木堆积体斜坡动力稳定性与极限承载力评价

王海芝¹,
王颂^2,3,4,
周剑⁵,
张路青^2,3,4, ,,
黄福有^2,3,4

1. 北京市地质研究所, 北京 100120;
2. 中国科学院地质与地球物理研究所中国科学院页岩气与地质工程重点实验室, 北京 100029;
3. 中国科学院大学地球与行星科学学院, 北京 100049;
4. 中国科学院地球科学研究院, 北京 100029;
5. 北京工业大学城市与工程安全减灾教育部重点实验室, 北京 100124

基金项目:

第二次青藏高原综合科学考察研究“祁连山-阿尔金-可可西里区重大工程扰动灾害及风险”（2019QZKK0904），国家自然科学基金面上项目“深埋应力环境下致密储层裂隙渗透率演化与预测方法”（41972287），西藏区域协同创新项目“西藏樟木滑坡勘查评估综合研究”（13143），“罗布泊地区人类活动的时空变化特征与环境变化”（41772182）。

详细信息

作者简介:
王海芝(1975-),女,硕士,高级工程师,主要从事地质灾害防治与监测研究。E-mail:418424101@qq.com。

通讯作者:
张路青(1973-),男,博士,研究员,主要从事岩土体工程性质和地质灾害研究。E-mail:zhangluqing@mail.iggcas.ac.cn。

中图分类号: P642
计量
- 文章访问数: 390
- HTML全文浏览量: 2
- PDF下载量: 347
出版历程
- 收稿日期: 2021-04-11
- 修回日期: 2021-06-20
- 网络出版日期: 2022-07-28
- 发布日期: 2022-03-04

Dynamic Stability Analysis and Ultimate Bearing Capacity Evaluation of Zhangmu Landslide Deposit

WANG Haizhi¹,
WANG Song^2,3,4,
ZHOU Jian⁵,
ZHANG Luqing^2,3,4, ,,
HUANG Fuyou^2,3,4

1. Beijing Institute of Geology, Beijing 100120, China;
2. Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;
3. College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
4. Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing 100029, China;
5. Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124, China

摘要

摘要: 樟木位于喜马拉雅山中段，是中国与尼泊尔的重要通商口岸，也是中尼公路的咽喉。特殊的地质地形条件和丰富的降水为地质灾害的发生提供了充分条件，区域内滑坡地质灾害发育。大量房屋建筑修建于樟木滑坡堆积体之上，滑坡灾害严重威胁到当地人民群众的生命财产安全和口岸经济的发展。目前，大量有关樟木滑坡堆积体稳定性的评价只考虑了暴雨条件和通过强度折减简化的地震作用，而忽略了地震的动态作用过程和人类活动的影响。为了精确论证该堆积体在动力载荷作用下的稳定程度，笔者在野外调查的基础上，计算了地震和车辆震动等极端工况下的动态安全系数，并按照地形条件、地质特征及已有滑坡分布状况，分区块评价其极限承载力。结果表明，堆积体古滑坡基本稳定，但前缘和后缘区块的承载力偏低；现代滑坡稳定性较差，没有进一步的承载空间，应禁止增加表观荷载。结论为系统治理樟木滑坡灾害，优化樟木建设用地布局和确保口岸的可持续发展提供了科学支撑。
- 地质灾害 /
- 樟木滑坡 /
- 动力稳定性 /
- 地震载荷 /
- 车辆载荷 /
- 极限承载力
Abstract: Zhangmu, located in middle Himalayas, is an important trading port between China and Nepal and serves as the regional economic development center. Special geological and topographical characteristics and abundant precipitation provide sufficient conditions for the frequent occurrence of geological disasters, especially the landslide disasters in the region. As a large number of house buildings were built on the deposit of Zhangmu landslide, the landslide disasters seriously threaten the safety and property of the local people, and restrict the development of port economy. Previous studies on the stability of Zhangmu landslide deposit only focus on the rainstorm condition and the seismic action simplified by strength reduction method while ignoring the dynamic action process of the earthquake and the influence of human activities. In order to accurately demonstrate the stability of the landslide deposit under dynamic load, this paper calculated the dynamic safety coefficients under extreme conditions such as earthquake and vehicle vibration according to field investigations, and evaluated the ultimate bearing capacity by block based on the characteristics of geology, topography and existing landslides distribution. The results show that the deposit of ancient landslide is generally stable, but the bearing capacity of the front and back edge sections is relatively low. The modern landslide has poor stability and no further load-bearing space. Therefore, it is prohibited for the modern landslide to increase the apparent load. The conclusions of this paper provide scientific support for the systematic control of Zhangmu landslide, the layout of Zhangmu construction land and the sustainable development of the trading port.
- geological hazard /
- Zhangmu landslide /
- dynamic stability /
- seismic load /
- vehicle load /
- ultimate bearing capacity

HTML全文

参考文献(40)

陈剑, 王全才, 李波. 西藏樟木滑坡特征及成因研究[J]. 自然灾害学报, 2016, 25(02):103-109.

CHEN Jian, WANG Quancai, LI Bo. Characteristics and Cause Analysis of Zhangmu Landslide in Tibet[J]. Journal of Natural Disasters, 2016, 25(02):103-109.

陈豫津,吴志坚,刘兴荣.基于有限元的动力稳定性评价方法与应用——以王家墩古滑坡为例[J].西北地质,2019, 52(04):286-293.

CHEN Yujin, WU Zhijian, LIU Xingrong. Evaluation Method and Application of Dynamic Stability based on Finite Element Analysis:Example from the Wangjiadun Landslide in Tianshui City,Gansu Province[J]. Northwestern Geology, 2019, 52(04):286-293.

高玉峰, 黎冰, 刘汉龙. 车辆荷载作用下公路软基沉降的拟静力计算方法研究[J].岩石力学与工程学报, 2005, 24(S2):5470-5477.

GAO Yufeng, LI Bing, LIU Hanlong. Study on Quasi-static Settlement Computation Method of Highway in Soft Ground Induced by Vehicle Loads[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(S2):5470-5477.

胡瑞林, 张小艳, 马凤山, 等. 西藏樟木堆积体结构及其稳定性[J]. 工程地质学报, 2014, 22(4):723-730.

HU Ruilin, ZHANG Xiaoyan, MA Fengshan, et al. Structure and Stability of Zhangmu Deposit in Tibet[J]. Journal of Engineering Geology, 2014, 22(4):723-730.

李云贵, 温清茂. 西藏樟木滑坡变形机理与趋势分析[J]. 水文地质工程地质, 1995, (05):32-35.

LI Yungui, WEN Qingmao. Deformation Mechanism and Trend Analysis of Zhangmu Landslide in Tibet[J]. Hydrogeology & Engineering Geology, 1995, (05):32-35.

刘畅,张平松,杨为民,等.税湾地震黄土滑坡的岩土动力特性及其稳定性评价[J].西北地质,2020, 53(04):176-185.

LIU Chang, ZHANG Pingsong, YANG Weimin, et al. Geotechnical Dynamic Characteristics and Stability Evaluation of Loess Landslides in Shuiwan Earthquake,Tianshui,Gansu[J]. Northwestern Geology, 2020, 53(04):176-185.

毛成文. 西藏樟木镇福利院滑坡稳定性分析与评价[D]. 西安:西安科技大学, 2008.

MAO Chengwen. Analyzing and Evaluating the Stability of Welfare-institute Landslide in Zhangmu Town of Tibet[D]. Xi'an:Xi'an University of Science and Technology, 2008.

尚文涛. 基于监测数据的滑坡预测与数值模拟研究-以西藏樟木滑坡为例[D]. 重庆:重庆交通大学, 2009.

SHANG Wentao. Numerical Simulation Study and Prediction of the Landslide Based on Monitoring Data-Taking Zhangmu Landslide in Tibet for Example[D]. Chongqing:Chongqing Jiaotong University, 2009.

吴应祥, 刘东升, 宋强辉, 等. 基于有限元强度折减法的抗滑桩滑坡推力及抗滑桩内力可靠性分析[J]. 岩土力学, 2013, 34(S1):348-354.

WU Yingxiang, LIU Dongsheng, SONG Qianghui, et al. Reliability Analysis of Landslide-thrust and Internal Forces of Anti-slide Pile Based on Strength Reduction Finite Element Method[J]. Rock and Soil Mechanics, 2013, 34(S1):348-354.

易顺民, 唐辉明.西藏樟木滑坡群的分形特征及其意义[J]. 长春地质学院学报, 1996, (04):33-38.

YI Shunmin, TANG Huiming. The Fractal Feature of Zhangmu Landslides Group in Tibet and Its Significance[J]. Journal of Changchun University of Earth Sciences, 1996, (04):33-38.

曾建. 西藏樟木滑坡防治技术研究[D]. 成都:西南交通大学, 2006.

ZENG Jian. Technology Research of Prevention on Zhangmu Landslide in Tibet[D]. Chengdu:Southwest Jiaotong University, 2006.

张俊文, 邹烨, 李玉琳. 大型多层次堆积体破坏模式及其稳定性[J]. 岩石力学与工程学报, 2016, 35(12):2479-2489.

ZHANG Junwen, ZOU Ye, LI Yulin. Failure Mechanism and Stability Analysis of Big Multi-layer Deposit[J]. Chinese Journal of Rock Mechanics and Engineering, 2016, 35(12):2479-2489.

中华人民共和国国家质量监督检验检疫总局, 中国国家标准化管理委员会. 中国地震动参数区划图(GB 18306-2015)[S]. 北京:中国标准出版社, 2015.

周礼, 范宣梅, 许强, 等. 金沙江白格滑坡运动过程特征数值模拟与危险性预测研究[J]. 工程地质学报, 2019, 27(06):1395-1404.

ZHOU Li, FAN Xuanmei, XU Qiang, et al. Numerical Simulation and Hazard Prediction on Movement Process Characteristics of Baige Landslide in Jinsha River[J]. Journal of Engineering Geology, 2019, 27(06):1395-1404.

祝建, 蔡庆娥, 姜海波. 西藏樟木口岸古滑坡变形监测分析[J]. 工程地质学报, 2010, 18(01):66-71.

ZHU Jian, CAI Qing'e, JIANG Haibo. Deformation Monitoring & Analysis of Ancient Landslide at Zhangmu Port in Tibet[J]. Journal of Engineering Geology, 2010, 18(01):66-71.

祝建, 雷英, 赵杰. 西藏樟木口岸特大型古滑坡形成机理分析[J]. 水文地质工程地质, 2008, (01):49-52.

ZHU Jian, LEI Ying, ZHAO Jie. Mechanism Analysis of the Outsized Ancient Landslide of Zhangmu Port in Tibet[J]. Hydrogeology & Engineering Geology, 2008, (01):49-52.

左辉. 邦村东滑坡类型、特征及稳定性研究[D]. 长春:吉林大学, 2009.

ZUO Hui. The Research of the Types, Characteristics and Stability of Bangcundong Landslide[D]. Changchun:Jilin University, 2009.

Gian Quoc Anh, Nguyen Dinh-Chinh, Tran Duc-Nghia, et al. Monitoring of Landslides in Mountainous Regions Based on FEM Modelling and Rain Gauge Measurements[J]. International Journal of Electrical and Computer Engineering, 2016, 6(5):2106.

Lollino P, Elia G, Cotecchia F, et al. Analysis of Landslide Reactivation Mechanisms in Daunia Clay Slopes by Means of Limit Equilibrium and FEM Methods[C]//Asce Special Publication-geoflorida -advances in Analysis, Modeling & Design,2010, 3155-3164.

MA Fengshan, LI Zhanlu, WANG Jie, et al. Monitoring and Engineering Geology Analysis of the Zhangmu Landslide in Tibet, China[J]. Bulletin of Engineering Geology and the Environment, 2017, 76(3):855-873.

Wang Li, Wang Shimei, Li Gao, et al. Construction of 3D Creep Model of Landslide Slip-Surface Soil and Secondary Development Based on FLAC3D[J]. Advances in Civil Engineering,2020.

Wei Jiangbo, Zhao Zhou, Xu Chong, et al. Numerical Investigation of Landslide Kinetics for the Recent Mabian Landslide (Sichuan, China)[J]. Landslides, 2019, 16(11):2287-2298.

Zhou Yuanyuan, Shi Zhenming, Zhang Qingzhao, et al. 3D DEM Investigation on the Morphology and Structure of Landslide Dams Formed by Dry Granular Flows[J]. Engineering Geology, 2019, 258:105151.

Zhang Yonggang, Zhang Zhen, Xue Shuai, et al. Stability Analysis of a Typical Landslide Mass in the Three Gorges Reservoir under Varying Reservoir Water Levels[J]. Environmental Earth Sciences, 2020, 79(1):42.

施引文献(3)

期刊类型引用(2)

1.	董会，曹佰迪，董敏，王志海，韩延兵. 天然流体包裹体均一状态下拉曼光谱研究. 西北地质. 2021(04): 274-279 . 本站查看
2.	李湖，高科. 浅谈新疆鄯善县阿奇山铅锌铜矿地质成因及找矿方向. 世界有色金属. 2020(10): 84-85 . 百度学术