STUDY ON CONTROL MEASURES OF COUNTER-TILT ROCK LANDSLIDE IN THREE GORGES RESERVOIR REGION

TAN Weijia; DAI Zhenwei; CHEN Yunxia

Volume 23 Issue 1

Feb. 2017

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TAN Weijia, DAI Zhenwei, CHEN Yunxia, et al., 2017. STUDY ON CONTROL MEASURES OF COUNTER-TILT ROCK LANDSLIDE IN THREE GORGES RESERVOIR REGION. Journal of Geomechanics, 23 (1): 78-87.

Citation:

TAN Weijia, DAI Zhenwei, CHEN Yunxia, et al., 2017. STUDY ON CONTROL MEASURES OF COUNTER-TILT ROCK LANDSLIDE IN THREE GORGES RESERVOIR REGION. Journal of Geomechanics, 23 (1): 78-87.

Citation:

TAN Weijia, DAI Zhenwei, CHEN Yunxia, et al., 2017. STUDY ON CONTROL MEASURES OF COUNTER-TILT ROCK LANDSLIDE IN THREE GORGES RESERVOIR REGION. Journal of Geomechanics, 23 (1): 78-87.

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STUDY ON CONTROL MEASURES OF COUNTER-TILT ROCK LANDSLIDE IN THREE GORGES RESERVOIR REGION

1.
School of Geology Engineering and Geomatics, Chang'an University, Xi'an, Shaanxi 710054, China
3.
Wuhan Centre of China Geological Survey, China Geological Survey, Wuhan, Hubei 430205, China

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Received: 2016-06-30
Published: 2017-02-01

Abstract

Abstract

In this paper, Maocaopo in the Wu Gorge section, a typical anti-dip rock landslide, was taken as the research object to describe the phased design process of prevention and control measures for this type of landslide (principle, idea and method):First, the deformation failure process and the current deformation stage of the bank slope were analyzed on the basis of existing geological survey data and the characteristics of bank slope deformation failure at the current stage, so as to determine the corresponding instability mode and main control factors, then propose alternative schemes for landslide prevention and control. Second, different deformation failure stages of the landslide were reasonably divided. Numerical simulation was applied to carry out whole-process evaluation of the outcome of each alternative scheme for landslide prevention and control at different deformation failure stages of the bank slope. Reasonable prevention and control measures were established through comparative analysis. Main conclusions of the research include the followings:(1) For the same bank slopes, their deformation failure mode and main control factors are not exactly the same at different deformation stages, and the same prevention and control scheme renders significantly different outcomes. (2) For the current stage of Maocaopo, the landslide is at the slope toe weakening and slipping stage of the deformation failure process. The main control factor of deformation failure at this stage is the weakening and slipping of rock mass in the hydro-fluctuation belt. The scheme of slope protection with lattice needs a lower construction cost and produces a better prevention and control effect, while the scheme of bolt anchoring needs a higher construction cost but has a poorer effect.
- Three Gorges Reservoir Region,
- counter-tilt rock landslide,
- Maocaopo bank slope,
- deformation mode,
- control measures

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References(17)

References

[1]	殷跃平.长江三峡工程移民迁建区地质灾害及防治研究[M].北京:地质出版社, 2004. YIN Yue-ping.Major geologic hazard and prevention on the releation site at the Three Gorges[M].Beijing:Geological Publishing House, 2004.
[2]	张倬元, 王士天, 王兰生.工程地质分析原理[M].北京:地质出版社, 1994. ZHANG Zhuo-yuan, WANG Shi-tian, WANG Lansheng.Fundamental analysis of engineering geology.Beijing:Geological Publishing House, 1994.
[3]	YIN Y, Wang H, Gao Y, et al.Real-time monitoring and early warning of landslides at relocated Wushan Town, the Three Gorges Reservoir, China[J].Landslides, 2010, 7(3):339~349. doi: 10.1007/s10346-010-0220~1
[4]	HUANG Bo-lin, YIN Yue-ping, LIU Guangning, et al.Analysis of waves generated by Gongjiafang landslide, Three Gorges Reservoir, China.Landslides, 2012, 9(3):395~405. doi: 10.1007/s10346-012-0331-y
[5]	黄波林.水库滑坡涌浪灾害水波动力学分析方法研究[D].中国地质大学(武汉)博士论文.2014. Water Wave Dynamic Analysis Method Study on Landslide-generated Impulse Wave Hazard in Reservoirs[D].A Dissertation Submitted to China University of Geosciences for the Doctor Degree of Geological Engineering.2014.
[6]	卢海峰, 刘泉声, 陈从新.反倾岩质边坡悬臂梁极限平衡模型的改进[J].岩土力学, 2012, 33(2):577~584. http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201202042.htm LU Hai-feng, LIU Quan-sheng, CHEN Cong-xin.Improvement of cantilever beam limit equilibrium model of counter-tilt rock slopes[J].Rock and Soil Mechanics, 2012, 33(2):577~584. http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201202042.htm
[7]	吴宝和.地表水和地下水对岩质边坡稳定性影响及防渗措施[J].中国地质灾害与防治学报, 2003, 14(3):1401~141. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGDH200303031.htm WU Bao-he.Influence of surface and ground water on the rock slope stability and seeping prevention.The Chinese journal of geological hazard control, 2003, 14 (3):140~141. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGDH200303031.htm
[8]	孙广忠等.中国典型滑坡[M].北京:科学出版社, 1988. SUN Guang-zhong, et al.Representative landslides in China.Beijing:Science press, 1988.
[9]	沈明荣, 邓海荣.水下岩质边坡在波浪作用下的稳定性分析[J].工程地质学报, 2006, 14(5):609~615.SHEN Ming-rong, DENG Hai-rong.Finite element analysis of submerged rock slope stability underwave acttion[J].工程地质学报, 2006, 14(5):609~615. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ200605006.htm
[10]	邹丽芳, 徐卫亚, 宁宇, 等.反倾层状岩质边坡倾倒变形破坏机制综述[J].长江科学学院院报, 2009, 26(5):25~30. http://www.cnki.com.cn/Article/CJFDTOTAL-CJKB200905007.htm ZOU Li-fang, XU Wei-ya, NING Yu, et al.Overview of topping failure mechanism of countertendency layered rock slopes[J].Journal of Yangtze River Scientific Research Institute, 2009, 26(5):25~30. http://www.cnki.com.cn/Article/CJFDTOTAL-CJKB200905007.htm
[11]	左保成, 陈从新, 刘小巍, 等.反倾岩质边坡破坏机制模型试验研究[J].岩石力学与工程学报, 2005, 24(19):3505~3511. doi: 10.3321/j.issn:1000~6915.2005.19.017 ZUO Bao-cheng, CHEN Cong-xin, LIU Xiao-wei, et al.Modeling experiment study on failure mechanism of counter-tilt rock slope[J].Chinese Journal of Rock Mechanics and Engineering, 2005, 24(19):3505~3511. doi: 10.3321/j.issn:1000~6915.2005.19.017
[12]	ADHIKARY D P, DYSKIN A V.Modelling of progressive and instantaneous failures of foliated rock slopes[J].Rock Mechanics and Rock Engineering, 2007, 40(4):349~362. doi: 10.1007/s00603-006-0085~8
[13]	郭志华, 周创兵, 盛谦, 等.库水位变化对边坡稳定性的影响[J].岩土力学, 2005, 26(sup.):29~32. http://www.cnki.com.cn/Article/CJFDTOTAL-GSSJ201701008.htm GUO Zhi-hua, ZHOU Chuang-bin, SHENG Qian, et al.Influence of reservoir water variation on slope stability[J].Rock and Soil Mechanics, 2005, 26(sup.):29~32. http://www.cnki.com.cn/Article/CJFDTOTAL-GSSJ201701008.htm
[14]	刘红岩, 秦四清.库水位上升条件下边坡滲流模拟[J].工程地质学报, 2007, 15(6):796~801. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ200706016.htm LIU Hong-yan, QIN Si-qing.Simulation of seepage field in bank slope due to reservoir water level change[J].Journal of Engineering Geology, 2007, 15(6):796~801. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ200706016.htm
[15]	廖红建, 盛谦, 高石夯, 等.库水位下降对滑坡体稳定性的影响[J].岩石力学与工程学报, 2005, 24(19):3454~3458. doi: 10.3321/j.issn:1000~6915.2005.19.008 LIAO Hong-jian, SHENG Qian, GAO Shi-hang, et al.Influence of drawdown of reservoir water level on landslide stability[J].Chinese Journal of Rock Mechanics and Engineering, 2005, 24(19):3454~3458. doi: 10.3321/j.issn:1000~6915.2005.19.008
[16]	刘才华, 陈从新, 冯夏庭.库水位上升诱发边坡失稳机理研究[J].岩土力学, 2005, 26(5):769~773. http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX200505022.htm LIU Cai-hua, CHEN Cong-xin, FENG Xia-ting.Study on mechanism of slope instability due to reservoir water level rise[J].Rock and Soil Mechanics, 2005, 26(5):769~773. http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX200505022.htm
[17]	谭维佳.三峡库区反倾层状内嵌岩梁式岩质岸坡失稳机理和防治研究[D].长安大学, 2015. TAN Wei-jia.A study of the instability mechanism and failure control of the anti-dip stratified rock slope with embedded rock beam in the Three Gorges Reservoir Region[D].Chang'an University, 2015.