CHARACTERISTICS AND DEFORMATION MECHANISM OF SHUIWAN SEISMIC LOESS LANDSLIDE IN MAIJI, TIANSHUI

LI Hao; YANG Wei-min; HUANG Xiao; LIU Ting; TIAN You; CHENG Xiao-jie

Volume 22 Issue 1

Mar. 2016

Turn off MathJax

Article Contents

Article Navigation > Journal of Geomechanics > 2016 > 22(1): 12-24

LI Hao, YANG Wei-min, HUANG Xiao, et al., 2016. CHARACTERISTICS AND DEFORMATION MECHANISM OF SHUIWAN SEISMIC LOESS LANDSLIDE IN MAIJI, TIANSHUI. Journal of Geomechanics, 22 (1): 12-24.

Citation:

LI Hao, YANG Wei-min, HUANG Xiao, et al., 2016. CHARACTERISTICS AND DEFORMATION MECHANISM OF SHUIWAN SEISMIC LOESS LANDSLIDE IN MAIJI, TIANSHUI. Journal of Geomechanics, 22 (1): 12-24.

Citation:

LI Hao, YANG Wei-min, HUANG Xiao, et al., 2016. CHARACTERISTICS AND DEFORMATION MECHANISM OF SHUIWAN SEISMIC LOESS LANDSLIDE IN MAIJI, TIANSHUI. Journal of Geomechanics, 22 (1): 12-24.

PDF( 22047 KB)

CHARACTERISTICS AND DEFORMATION MECHANISM OF SHUIWAN SEISMIC LOESS LANDSLIDE IN MAIJI, TIANSHUI

LI Hao^{1, 2
,},
YANG Wei-min^{1
,
,},
HUANG Xiao³,
LIU Ting^{1, 2},
TIAN You^{1, 2},
CHENG Xiao-jie¹

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
3.
Huihua College of Hebei Normal University, Shijiazhuang 050091, China

More Information

Received: 2015-10-22
Published: 2016-03-01

Abstract

Abstract

Many historical earthquakes happened in Tianshui and its adjacent region, which resulted in seismic loess landslides developing extremely. According to field survey and indoor synthetic analysis, Shuiwan landslide and landslide groups of Liugou belong to typical seismic loess landslides, which are usually performance for large-scale, the sliding surface cutting deeply, thickness greatly, small slope, distributed along zones, appeared in groups and decline in high position and other characteristics. The characteristics above can be used as important symbols of field identification of seismic loess landslides. The slopes involved in Shuiwan landslide and the right bank Liugou landslides are characterized by loess/mudstone slope double layers structure. Under the condition of internal power, it is easy to slip along the loess/mudstone contact surfaces. Under the dynamic circulative loading, shear strength of the landslide rock mass is decreased on one hand. On the other hand it also changes the mechanical status of landslide, and the balance of the slope body is destroyed, which induce landslide happened. So, Shuiwan landslide is still in understable state. In case of an earthquake or heavy rainfall, it is likely to reoccur again. There is a necessary for further research of the disaster model of seismic loess landslide. It will provide a scientific basis for prevention and mitigation disaster of potential meizoseismal area.
- Shuiwan-Maiji,
- seismic loess landslide,
- seismic force,
- deformation and failure,
- deformation mechanism

FullText(HTML)

References(25)

References

[1]	殷跃平.汶川八级地震滑坡特征分析[J].工程地质学报, 2009, 17(1):29~38. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ200901005.htm YIN Yue-ping. Features of landslides triggered by the Wenchuan earthquake [J]. Journal of Engineering Geology, 2009, 17(1): 29~38. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ200901005.htm
[2]	陈永明, 石玉成.中国西北黄土地区地震滑坡基本特征[J].地震研究, 2006, 29(3):276~280, 318. http://www.cnki.com.cn/Article/CJFDTOTAL-DZYJ200603012.htm CHEN Yong-ming, SHI Yu-cheng. Basic characteristics of seismic landslides in loess area of northwest china [J]. Journal of Seismological Research, 2006, 29(3): 276~280, 318. http://www.cnki.com.cn/Article/CJFDTOTAL-DZYJ200603012.htm
[3]	李树德, 任秀生, 岳升阳, 等.地震滑坡研究[J].水土保持研究, 2001, (2):24~25. http://www.cnki.com.cn/Article/CJFDTOTAL-KJDB201416023.htm LI Shu-de, REN Xiu-sheng, YUE Sheng-yang, et al. Study of earthquake-landslide [J]. Research of Soil and Water Conservation, 2001, (2): 24~25. http://www.cnki.com.cn/Article/CJFDTOTAL-KJDB201416023.htm
[4]	邓龙胜, 范文.宁夏海原8.5级地震诱发黄土滑坡的变形破坏特征及发育机理[J].灾害学, 2013, 28(3):30~37. http://www.cnki.com.cn/Article/CJFDTOTAL-ZHXU201303008.htm DENG Long-sheng, FAN Wen. Deformation breakage characteristics and development mechanism of loess landslide triggered by Haiyuan M8.5 earthquake in Ningxia [J]. Journal of Catastrophology, 2013, 28(3): 30~37. http://www.cnki.com.cn/Article/CJFDTOTAL-ZHXU201303008.htm
[5]	邹谨敞, 邵顺妹, 蒋荣发.古浪地震滑坡的分布规律和构造意义[J].中国地震, 1994, 10(2):168~174. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGZD402.008.htm ZOU Jin-chang, SHAO Shun-mei, JIANG Rong-fa. Distribution and tectonic implications on the Gulang seismie landslide[J]. Earthquake Research in China, 1994, 10(2): 168~174. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGZD402.008.htm
[6]	张振中, 郑恒利, 王兰民.黄土随机振动强度参数在地震滑坡分析中的应用[J].西北地震学报, 1991, 13(3):45~49. http://www.cnki.com.cn/Article/CJFDTOTAL-ZBDZ199103007.htm ZHANG Zhen-zhong, ZHENG Heng-li, WANG Lan-min. Application of loess strength parameters under random vibration in analysis of seismic landslides[J]. Northwestern Seismological Journal, 1991, 13(3): 45~49. http://www.cnki.com.cn/Article/CJFDTOTAL-ZBDZ199103007.htm
[7]	Sasaki Y, Towhata I. Mechanism of permants displacement of ground caused by seismic liquefaction[J]. Soils and Foundations, 1992, 32(3): 79~96. doi: 10.3208/sandf1972.32.3_79
[8]	Pilgrim N K. Earthquake-related deformation beneath gently inclined ground[J]. Geotechnique, 1998, 48(2): 187~199. doi: 10.1680/geot.1998.48.2.187
[9]	Sassa K. The mechanism of debris flows[C] //11^th International Conference on Soil Mechanics and Foundation Engineering. San Francisco, 1985: 1173~1176.
[10]	王家鼎, 白铭学, 肖树芳.强震作用下低角度黄土斜坡滑移的复合机理研究[J].岩土工程学报, 2001, 23(4):445~449. http://www.cnki.com.cn/Article/CJFDTOTAL-YTGC200104014.htm WANG Jia-ding, BAI Xue-ming, XIAO Shu-fang. A study on compound mechanism of earthquake-related sliding displacements on gently inclined loess slope[J]. Chinese Journal of Geotechnical Engineering, 2001, 23(4): 445~449. http://www.cnki.com.cn/Article/CJFDTOTAL-YTGC200104014.htm
[11]	张茂省, 李同录.黄土滑坡诱发因素及其形成机理研究[J].工程地质学报, 2011, 19(4):530~540. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ201104015.htm ZHANG Mao-sheng, LI Tong-lu. Triggering factors and forming mechanism of loess land-slides[J]. Journal of Engineering Geology, 2011, 19(4): 530~540. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ201104015.htm
[12]	孙萍, 殷跃平, 吴树仁, 等.高速远程地震黄土滑坡发生机制试验研究[J].工程地质学报, 2009, 17(4):449~454. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ200904005.htm SUN Ping, YIN Yue-ping, WU Shu-ren, et al. An experimental study on the initiation mechanism of rapid and long run-out loess landslide caused by1920 Haiyuan earthquake [J]. Journal of Engineering Geology, 2009, 17(4): 449~454. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ200904005.htm
[13]	白启圣, 王之佩.甘肃天水地区1654年罗家堡7 1/2级地震构造背景的初步分析[J].西北地震学报, 1984, 6(1):65~71. http://www.cnki.com.cn/Article/CJFDTOTAL-ZBDZ198401010.htm BAI Qi-sheng, WANG Zhi-pei. Elementary analysis of geotectonic background for1654 Luojiapu earthquake in the Tianshui area, Gansu Province[J]. Northwestern Seismological Journal, 1984, 6(1): 65~71. http://www.cnki.com.cn/Article/CJFDTOTAL-ZBDZ198401010.htm
[14]	成玉祥, 张骏, 杜东菊.天水地区断裂活动性与地质灾害的相关性研究[J].工程地质学报, 2007, 15(1):33~37. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ200701004.htm CHENG Yu-xiang, ZHANG Jun, DU Dong-ju. On the relationship between fault activity and geological hazard in tianshui area, Gansu Province[J]. Journal of Engineering Geology, 2007, 15(1): 33~37. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ200701004.htm
[15]	李传友. 青藏高原东北部几条主要断裂带的定量研究[D]. 北京: 中国地震局地质研究所, 2005. http://cdmd.cnki.com.cn/Article/CDMD-85402-2006175968.htm LI Chuan-you. Quantitative studies on major active fault zones in Northeastern Qinghai-Tibet Plateau[D]. Beijing: Geology Institute of China Earthquake Administration, 2005. http://cdmd.cnki.com.cn/Article/CDMD-85402-2006175968.htm
[16]	成玉祥, 张骏, 杜东菊.天水地区新构造运动特征研究[J].工程地质学报, 2007, 15(4):549~554. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ200704021.htm CHENG Yu-xiang, ZHANG Jun, DU Dong-ju. Study on Neotectonic movement features in Tianshui area[J]. Journal of Engineering Geology, 2007, 15(4): 549~554. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ200704021.htm
[17]	赖晓玲, 李松林, 宋占龙, 等.南北构造带天水、武都强震区地壳和上地幔顶部结构[J].地球科学:中国地质大学学报, 2009, 34(4):651~657. http://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200904012.htm LAI Xiao-ling, LI Song-lin, SONG Zhan-long, et al. Structure of crust and upper mantle in Tianshui Wudu strong earthquake region of north-south tectonic belt[J]. Earth Science: Journal of China University of Geosciences, 2009, 34(4): 651~657. http://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200904012.htm
[18]	雷中生, 袁道阳, 葛伟鹏, 等.734年天水7级地震考证与发震构造分析[J].地震地质, 2007, 29(1):51~62. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ200701004.htm LEI Zhong-sheng, YUAN Dao-yang, GE Wei-peng, et al. Textual research on the Tianshui M7 earthquake in 734 AD and analysis of its causative structure[J]. Seismology and Geology, 2007, 29(1): 51~62. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ200701004.htm
[19]	杨晓平, 冯希杰, 黄雄南, 等.礼县—罗家堡断裂晚第四纪活动特征:兼论1654年礼县8级地震孕震机制[J].地球物理学报, 2015, 58(2):504~519. doi: 10.6038/cjg20150214 YANG Xiao-ping, FENG Xi-jie, HUANG Xiong-nan, et al.The late Quaternary activity characteristics of the Lixian-Luojiapu fault: A discussion on the seismogenic mechanism of the Lixian M8 earthquake in 1654 [J]. Chinese Journal of Geophysics, 2015, 58(2): 504~519. doi: 10.6038/cjg20150214
[20]	徐张建, 林在贯, 张茂省.中国黄土与黄土滑坡[J].岩石力学与工程学报, 2007, 26(7):1297~1312. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200707001.htm XU Zhang-jian, LIN Zai-guan, ZHANG Mao-sheng. Loess in China and loess landslides[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(7): 1297~1312. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200707001.htm
[21]	李为乐, 黄润秋, 裴向军, 等.基于Google Earth的1920年海原8.5级大地震地质灾害研究[J].灾害学, 2015, 30(2):26~31. http://www.cnki.com.cn/Article/CJFDTOTAL-ZHXU201502006.htm LI Wei-le, HUANG Run-qiu, PEI Xiang-jun, et al. Study on geological disasters caused by Haiyuan M8.5 earthquake in 1920 based on Google Earth[J]. Journal of Catastrophology, 2015, 30(2): 26~31. http://www.cnki.com.cn/Article/CJFDTOTAL-ZHXU201502006.htm
[22]	黄润秋.汶川8.0级地震触发崩滑灾害机制及其地质力学模式[J].岩石力学与工程学报, 2009, 28(6):1239~1249. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200906023.htm HUANG Run-qiu. Mechanism and geomechanical modes of landslide hazards triggered by Wenchuan 8.0 earthquake[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(6): 1239~1249. http://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200906023.htm
[23]	吴玮江, 王念秦.甘肃滑坡灾害[M].兰州:兰州大学出版社, 2006. WU Wei-jiang, WANG Nian-qin. Gansu landslide disaster[M]. Lanzhou: Lanzhou University Press, 2006.
[24]	许强, 李为乐.汶川地震诱发大型滑坡分布规律研究[J].工程地质学报, 2010, 18(6):818~826. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ201006002.htm XU Qiang, LI Wei-le. Distribution of large-scale landslides induced by the Wenchuan earthquake[J]. Journal of Engineering Geology, 2010, 18(6): 818~826. http://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ201006002.htm
[25]	许强, 李为乐.汶川地震诱发滑坡方向效应研究[J].四川大学学报:工程科学版, 2010, (S1):7~14. http://www.cnki.com.cn/Article/CJFDTOTAL-SCLH2010S1003.htm XU Qiang, LI Wei-le. Study on the direction effects of landslides triggered by Wenchuan earthquake [J]. Journal of Sichuan University: Engineering Science Edition, 2010, (S1): 7~14. http://www.cnki.com.cn/Article/CJFDTOTAL-SCLH2010S1003.htm