Cumulative damage and stability analysis of bedding rock slope under frequent microseisms

LIU Xin-rong; XU Bin; LIU Yong-quan; WANG Ji-wen; LIN Guang-yi

doi:10.11779/CJGE202004005

Volume 42 Issue 4

Turn off MathJax

Article Contents

Abstract

References

Chinese Journal of Geotechnical Engineering > 2020 > 42(4): 632-641. > DOI: 10.11779/CJGE202004005

LIU Xin-rong, XU Bin, LIU Yong-quan, WANG Ji-wen, LIN Guang-yi. Cumulative damage and stability analysis of bedding rock slope under frequent microseisms[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(4): 632-641. DOI: 10.11779/CJGE202004005

Citation:

PDF (4603 KB)

Cumulative damage and stability analysis of bedding rock slope under frequent microseisms

LIU Xin-rong^{1, 2, 3,},
XU Bin^{1, 2, 3, ,},
LIU Yong-quan⁴,
WANG Ji-wen^{1, 2, 3},
LIN Guang-yi^{1, 2, 3}

1.
School of Civil Engineering, Chongqing University, Chongqing 400045, China
2.
National Joint Engineering Research Center for Prevention and Control of Environmental Geological Hazards in the TGR Area, Chongqing 400045, China
3.
Key Laboratory of New Technology for Construction of Cities in Mountain Area (Chongqing University), Ministry of Education, Chongqing 400045, China
4.
China Construction Underground Space Co., Ltd., Chengdu 610073, China

More Information

Received Date: May 19, 2019
Available Online: December 07, 2022

Graphical Abstract

Abstract

Abstract

Micro-seism frequently occurs in the Three Gorges Reservoir after impoundment and has a significant impact on slope stability. To investigate the cumulative damage and stability of typical bedding rock slope under frequent microseisms, the shaking table model tests and UDEC discrete element numerical analyses are conducted. The results indicate that: (1) The damping ratio, damage degree and damage rate of slope increase with the increase of seismic duration, while the natural frequency and PGA amplification coefficient decrease. The PGA response of slope shows "elevation effect" and "surface effect". (2) The non-linear cumulative damage model under high and low seismic amplitudes can be represented by exponential and cubic functions respectively, and the evolution curve shows "S" characteristics of slight decline in initial stage, linear increase in intermediate stage and gentle increase in later stage, and "steep" characteristics of rapid rise. (3) The gradual process of cumulative damage and instability is as follows: undulant body climbs, shear and grinds, cracks initiate, propagate and run through, the slope slips wholly along the composite sliding surface, and rock mass accumulates at the slope foot in the form of broken, large and giant blocks. The stability of slope with undulant body is better. (4) The critical times of microseism decrease and the cumulative permanent displacement increases with the increase of seismic amplitude, frequency, slope height and slope angle and the decrease of bedding thickness, and accordingly the stability factor decreases. The slope with outcropped bedding is more prone to fail.
- frequent microseism,
- bedding rock slope,
- shaking table model test,
- cumulative damage,
- UDEC DEM,
- stability

FullText(HTML)

References (21)

References

[1]	黄润秋. 岩石高边坡稳定性工程地质分析[M]. 北京: 科学出版社, 2012. HUANG Run-qiu. Engineering Geology for High Rock Slopes[M]. Beijing: Science Press, 2012. (in Chinese)
[2]	王儒述. 三峡水库诱发地震的监测与预报[J]. 三峡大学学报(自然科学版), 2017, 39(1): 30-37. https://www.cnki.com.cn/Article/CJFDTOTAL-WHYC201701025.htm WANG Ru-shu. Induced earthquake monitoring and forecast of Three Gorges reservoir[J]. Journal of China Three Gorges University (Natural Sciences), 2017, 39(1): 30-37. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-WHYC201701025.htm
[3]	李兴旺. 频发微震作用下顺层岩质边坡的稳定性研究[D]. 重庆: 重庆大学, 2015. LI Xing-wang. The Analysis of the Stability of Bedding Slope Under the Effect of Frequent Seismic[D]. Chongqing: Chongqing University, 2015. (in Chinese)
[4]	王思敬. 岩石边坡动态稳定性的初步探讨[J]. 地质科学, 1977(4): 372-376. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKX197704005.htm WANG Si-jing. Preliminary notes on the dynamic stability of rock slopes[J]. Chinese Journal of Geology (Scientia Geologica Sinica), 1977(4): 372-376. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DZKX197704005.htm
[5]	GRIFFITHS D W, BOLLINGER G A. The effect of appalachian mountain topography on seismic waves[J]. Bulletin of the Seismological Society of America, 1979, 69(4): 1081-1105. doi: 10.1785/BSSA0690041081
[6]	HONG Y S, CHEN R H, WU C S, et al. Shaking table tests and stability analysis of steep nailed slopes[J]. Canadian Geotechnical Journal, 2005, 42(5): 1264-1279. doi: 10.1139/t05-055
[7]	黄润秋, 李果, 巨能攀. 层状岩体斜坡强震动力响应的振动台试验[J]. 岩石力学与工程学报, 2013, 32(5): 865-875. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201305003.htm HUANG Run-qiu, LI Guo, JU Neng-pan. Shaking table test on strong earthquake response of stratified rock slopes[J]. Chinese Journal of Rock Mechanics and Engineering, 2013, 32(5): 865-875. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201305003.htm
[8]	董金玉, 杨国香, 伍法权, 等. 地震作用下顺层岩质边坡动力响应和破坏模式大型振动台试验研究[J]. 岩土力学, 2011, 32(10): 2977-2982, 2988. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201110015.htm DONG Jin-yu, YANG Guo-xiang, WU Fa-quan, et al. The large-scale shaking table test study of dynamic response and failure mode of bedding rock slope under earthquake[J]. Rock and Soil Mechanics, 2011, 32(10): 2977-2982, 2988. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201110015.htm
[9]	罗璟, 裴向军, 黄润秋, 等. 强震作用下滑坡岩体震裂损伤程度影响因素研究[J]. 岩土工程学报, 2015, 37(6): 1105-1114. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201506020.htm LUO Jing, PEI Xiang-jun, HUANG Run-qiu, et al. Influencing factors for damage degree of shattered landslide rock mass under high seismic action[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(6): 1105-1114. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201506020.htm
[10]	许强, 刘汉香, 邹威, 等. 斜坡加速度动力响应特性的大型振动台试验研究[J]. 岩石力学与工程学报, 2010, 29(12): 2420-2428. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201012009.htm XU Qiang, LIU Han-xiang, ZOU Wei, et al. Large-scale shaking table test study of acceleration dynamic responses characteristics of slopes[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(12): 2420-2428. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201012009.htm
[11]	LIU X R, HE C M, LIU S L, et al. Dynamic response and failure mode of slopes with horizontal soft and hard interbeddings under frequent microseisms[J]. Arabian Journal for Science and Engineering, 2018, 43(10): 5397-5411.
[12]	杨忠平, 刘树林, 刘永权, 等. 反复微震作用下顺层及反倾岩质边坡的动力稳定性分析[J]. 岩土工程学报, 2018, 40(7): 1277-1286. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201807018.htm YANG Zhong-ping, LIU Shu-lin, LIU Yong-quan, et al. Dynamic stability analysis of bedding and toppling rock slopes under repeated micro-seismic action[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(7): 1277-1286. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201807018.htm
[13]	刘永权. 频发微震下库区顺层岩质边坡累积损伤演化机理及稳定性研究[D]. 重庆: 重庆大学, 2017. LIU Yong-quan. Study on Cumulative Damage Evolution Mechanism and Stability of Bedding Rock Slope in Reservoir Area Under Frequent Microseismic[D]. Chongqing: Chongqing University, 2017. (in Chinese)
[14]	LIU X R, LIU Y Q, HE C M, et al. Dynamic stability analysis of the bedding rock slope considering the vibration deterioration effect of the structural plane[J]. Bulletin of Engineering Geology and the Environment, 2018, 77(1): 87-103.
[15]	江洎洧. 频发微震作用下三峡库首段典型滑坡变形机制及动力响应研究[D]. 武汉: 中国地质大学, 2012. JIANG Ji-wei. Research on the Deformation Mechanism and Dynamic Response of Typical Landslides in Three Gorges Reservoir in Case of Frequent Microseisms[D]. Wuhan: China University of Geosciences, 2012. (in Chinese)
[16]	顾大钊. 相似材料和相似模型[M]. 徐州: 中国矿业大学出版社, 1995. GU Da-zhao. Equivalent Materials and Similitude Models[M]. Xuzhou: China University of Mining & Technology Press, 1995. (in Chinese)
[17]	杨静黎. 三峡库区滑坡岩土力学参数分区研究[D]. 重庆: 重庆交通大学, 2014. YANG Jing-li. Study on Rock and Soil Mechanics Parameters Partition of Landslides in the Three Gorges Reservoir[D]. Chongqing: Chongqing Jiaotong University, 2014. (in Chinese)
[18]	陈剑, 李晓, 杨志法. 三峡库区滑坡的时空分布特征与成因探讨[J]. 工程地质学报, 2005, 13(3): 305-309. https://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ200503003.htm CHEN Jian, LI Xiao, YANG Zhi-fa. On the distribution and mechanism of landslides in the three gorges reservoir area[J]. Journal of Engineering Geology, 2005, 13(3): 305-309. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ200503003.htm
[19]	曹树谦, 张文德, 萧龙翔. 振动结构模态分析——理论、实验与应用[M]. 2版.天津: 天津大学出版社, 2014. CAO Shu-qian, ZHANG Wen-de, XIAO Long-xiang. Modal Analysis of Vibration Structures-Theory, Experiments and Applications[M]. 2nd ed. Tianjin: Tianjin University Press, 2014. (in Chinese)
[20]	朱传云, 喻胜春. 爆破引起岩体损伤的判别方法研究[J]. 工程爆破, 2001, 7(1): 12-16. https://www.cnki.com.cn/Article/CJFDTOTAL-GCBP200101002.htm ZHU Chuan-yun, YU Sheng-chun. Study on the criterion of rock mass damage caused by blasting[J]. Engineering Blasting, 2001, 7(1): 12-16. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GCBP200101002.htm
[21]	NAKATA N, SNIEDER R, KURODA S, et al. Monitoring a building using deconvolution interferometry: I Earthquake- data analysis[J]. Bulletin of the Seismological Society of America, 2013, 103(3): 1662-1678.

Supplements (0)

Cited By

Cited by

Periodical cited type(1)

梁靖宇，齐吉琳，张跃东，路德春，李昊雯. 考虑温度与围压影响的冻结砂土非正交弹塑性本构模型. 岩土工程学报. 2024(09): 1889-1898 .

本站查看

Other cited types(5)

Get Citation

PDF

XML

Article views PDF downloads Cited by(6)

Cumulative damage and stability analysis of bedding rock slope under frequent microseisms

Abstract

References

Cited by

Periodical cited type(1)

Other cited types(5)

Catalog

Related

Cumulative damage and stability analysis of bedding rock slope under frequent microseisms

Abstract

References

Cited by

Periodical cited type(1)

Other cited types(5)

Catalog

Related

Export File

Citation

Format

Content