| Citation: |
DU Zhaomeng，LIU Tianxiang，CHENG Qiang，et al. Analysis of bank slope stability under strong seismic response for super long span bridges[J]. The Chinese Journal of Geological Hazard and Control，2025，36(2): 107-117. DOI: 10.16031/j.cnki.issn.1003-8035.202309031
|
Designing and constructing highway bridges in high-intensity mountainous areas present significant challenges. The stability of high and steep bank slopes for large span bridges coupled with various unfavorable conditions under strong earthquakes is particularly complex, which is prone to formation of bank slope instability disasters such as sliding and debris flow. Investigations into earthquake damage reveal that irregular terrain has a significant amplification effect on earthquake dynamics, which has an adverse impact on the stability of slopes and the safety of bridges. Assessing the seismic dynamic amplification effect of complex terrain is of important engineering value. This study examines the bank slope of a 1200m-long suspension bridge located in the high-intensity, deep canyon region of the Liangshan Yi Autonomous Prefecture, Sichuan Province. We conduct an in-depth analysis and research on the seismic hazard probability and instability failure mode mechanisms of the bedrock surface under strong seismic forces. A three-dimensional slope structure model with unloading cracks was developed. The peak seismic acceleration of each characteristic point on the bank slope under different instability failure modes was obtained using dynamic time-history analysis method and modified amplification coefficient was derived based on these findings. Improvements were made to the static calculation method for slope seismic stability using this modified coefficient. The improved method was used to evaluate the stability of the construction site. The results indicate that the slope's peak seismic horizontal acceleration and amplification coefficient are highest at the surface and decrease with increasing slope depth, with the rate of decrease slowing and stabilizing. The rate of slope change significantly impacts this response. The seismic response is exceptionally strong in areas with high slope change rates and prominent landforms. Widely distributed fragmented rock and soil cover layers, shallow surfaces with varying slope rates, and surface weathered fragmented rock masses within weathering unloading zones are prone to deformation under seismic action, and protection should be strengthened. The calculation results of seismic conditions without considering the correction of amplification factors are unsafe, with safety factor results decreasing by 2% to 6%. A complete set of geological hazard risk assessment methods, and slope stability calculation methods, and protective measures suitable for considering the two-level seismic resistance of bridge structures are proposed based on this for the bank slopes of ultra large span bridges in high intensity mountainous areas, providing a reference for the research and design of related engineering projects in high-intensity mountainous areas.
| [1] |
彭建兵,崔鹏,庄建琦. 川藏铁路对工程地质提出的挑战[J]. 岩石力学与工程学报,2020,39(12):2377 − 2389. [PENG Jianbing,CUI Peng,ZHUANG Jianqi. Challenges to engineering geology of Sichuan—Tibet railway[J]. Chinese Journal of Rock Mechanics and Engineering,2020,39(12):2377 − 2389. (in Chinese with English abstract)]
PENG Jianbing, CUI Peng, ZHUANG Jianqi. Challenges to engineering geology of Sichuan—Tibet railway［J］. Chinese Journal of Rock Mechanics and Engineering, 2020, 39（12）: 2377 − 2389. （in Chinese with English abstract）
|
| [2] |
袁进科,陈杰. 汶川地震公路边坡灾害分析及震后边坡灾害发育特点[J]. 公路,2020,65(5):26 − 33. [YUAN Jinke,CHEN Jie. Analysis of highway slope disaster in Wenchuan earthquake and its development characteristics after earthquake[J]. Highway,2020,65(5):26 − 33. (in Chinese with English abstract)]
YUAN Jinke, CHEN Jie. Analysis of highway slope disaster in Wenchuan earthquake and its development characteristics after earthquake［J］. Highway, 2020, 65（5）: 26 − 33. （in Chinese with English abstract）
|
| [3] |
张伯艳,王璨,李德玉,等. 地震作用下水利水电工程边坡稳定分析研究进展[J]. 中国水利水电科学研究院学报,2018,16(3):168 − 178. [ZHANG Boyan,WANG Can,LI Deyu,et al. The research progress on seismic stability analysis of slopes in water conservancy and hydropower projects[J]. Journal of China Institute of Water Resources and Hydropower Research,2018,16(3):168 − 178. (in Chinese with English abstract)]
ZHANG Boyan, WANG Can, LI Deyu, et al. The research progress on seismic stability analysis of slopes in water conservancy and hydropower projects［J］. Journal of China Institute of Water Resources and Hydropower Research, 2018, 16（3）: 168 − 178. （in Chinese with English abstract）
|
| [4] |
郭延辉,杨溢,高才坤,等. 云南鲁甸地震红石岩堰塞湖右岸特高边坡综合监测及变形特征分析[J]. 中国地质灾害与防治学报,2020,31(6):30 − 37. [GUO Yanhui,YANG Yi,GAO Caikun,et al. Comprehensive monitoring and deformation analysis of extra high slope on the right bank of Hongshiyan dammed lake in Ludian Earthquake[J]. The Chinese Journal of Geological Hazard and Control,2020,31(6):30 − 37. (in Chinese with English abstract)]
GUO Yanhui, YANG Yi, GAO Caikun, et al. Comprehensive monitoring and deformation analysis of extra high slope on the right bank of Hongshiyan dammed lake in Ludian Earthquake［J］. The Chinese Journal of Geological Hazard and Control, 2020, 31（6）: 30 − 37. （in Chinese with English abstract）
|
| [5] |
胡爱国,周伟. 地震与强降雨作用下堆积体滑坡变形破坏机理及防治方案分析[J]. 中国地质灾害与防治学报,2022,33(1):27 − 34. [HU Aiguo,ZHOU Wei. Deformation and failure mechanism and analysis on prevention measures of colluction landslide under earthquake and heavy rainfall[J]. The Chinese Journal of Geological Hazard and Control,2022,33(1):27 − 34. (in Chinese with English abstract)]
HU Aiguo, ZHOU Wei. Deformation and failure mechanism and analysis on prevention measures of colluction landslide under earthquake and heavy rainfall［J］. The Chinese Journal of Geological Hazard and Control, 2022, 33（1）: 27 − 34. （in Chinese with English abstract）
|
| [6] |
周洪福,冯治国,石胜伟,等. 川藏铁路某特大桥成都侧岸坡工程地质特征及稳定性评价[J]. 水文地质工程地质,2021,48(5):112 − 119. [ZHOU Hongfu,FENG Zhiguo,SHI Shengwei,et al. Slope engineering geology characteristics and stability evaluation of a grand bridge to Chengdu bank on the Sichuan—Tibet Railway[J]. Hydrogeology & Engineering Geology,2021,48(5):112 − 119. (in Chinese with English abstract)]
ZHOU Hongfu, FENG Zhiguo, SHI Shengwei, et al. Slope engineering geology characteristics and stability evaluation of a grand bridge to Chengdu bank on the Sichuan—Tibet Railway［J］. Hydrogeology & Engineering Geology, 2021, 48（5）: 112 − 119. （in Chinese with English abstract）
|
| [7] |
刘天翔,杜兆萌,程强,等. 红层软岩高边坡的时效变形特性[J]. 科学技术与工程,2020,20(27):11315 − 11322. [LIU Tianxiang,DU Zhaomeng,CHENG Qiang,et al. Time-dependent deformation characteristics of high slope in red layer soft rock[J]. Science Technology and Engineering,2020,20(27):11315 − 11322. (in Chinese with English abstract)] DOI: 10.3969/j.issn.1671-1815.2020.27.050
LIU Tianxiang, DU Zhaomeng, CHENG Qiang, et al. Time-dependent deformation characteristics of high slope in red layer soft rock［J］. Science Technology and Engineering, 2020, 20（27）: 11315 − 11322. （in Chinese with English abstract） DOI: 10.3969/j.issn.1671-1815.2020.27.050
|
| [8] |
陈廷君,肖世国,程强,等. 泸定大渡河桥康定岸重力锚边坡长期变形与稳定性分析[J]. 工程地质学报,2019,27(3):632 − 639. [CHEN Tingjun,XIAO Shiguo,CHENG Qiang,et al. Long-term deformation and stability analysis of gravity anchorage slope on Kangding bank of Dadu River bridge in Luding[J]. Journal of Engineering Geology,2019,27(3):632 − 639. (in Chinese with English abstract)]
CHEN Tingjun, XIAO Shiguo, CHENG Qiang, et al. Long-term deformation and stability analysis of gravity anchorage slope on Kangding bank of Dadu River bridge in Luding［J］. Journal of Engineering Geology, 2019, 27（3）: 632 − 639. （in Chinese with English abstract）
|
| [9] |
郭鸿俊,姜清辉,孙金山. 大岗山水电站右岸高边坡加固方案优化研究[J]. 人民长江,2012,43(15):16 − 19. [GUO Hongjun,JIANG Qinghui,SUN Jinshan. Optimization for reinforcement plan of right-bank high slope of Dagangshan Hydropower Station[J]. Yangtze River,2012,43(15):16 − 19. (in Chinese with English abstract)] DOI: 10.3969/j.issn.1001-4179.2012.15.005
GUO Hongjun, JIANG Qinghui, SUN Jinshan. Optimization for reinforcement plan of right-bank high slope of Dagangshan Hydropower Station［J］. Yangtze River, 2012, 43（15）: 16 − 19. （in Chinese with English abstract） DOI: 10.3969/j.issn.1001-4179.2012.15.005
|
| [10] |
张泽鹏,朱凤贤,黄放军,等. 复杂地质条件下高边坡加固设计与综合治理研究——以梅河高速公路某高边坡治理为例[J]. 中山大学学报(自然科学版),2006,45(4):44 − 48. [ZHANG Zepeng,ZHU Fengxian,HUANG Fangjun,et al. Research on reinforcement design and comprehensive improvement for high slopes under complicated geological conditions[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni,2006,45(4):44 − 48. (in Chinese with English abstract)]
ZHANG Zepeng, ZHU Fengxian, HUANG Fangjun, et al. Research on reinforcement design and comprehensive improvement for high slopes under complicated geological conditions［J］. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2006, 45（4）: 44 − 48. （in Chinese with English abstract）
|
| [11] |
张江伟,李小军. 地震作用下边坡稳定性分析方法[J]. 地震学报,2015,37(1):180 − 191. [ZHANG Jiangwei,LI Xiaojun. A review on the stability analysis methods of slope under seismic loading[J]. Acta Seismologica Sinica,2015,37(1):180 − 191. (in Chinese with English abstract)] DOI: 10.11939/j.issn:0253-3782.2015.01.016
ZHANG Jiangwei, LI Xiaojun. A review on the stability analysis methods of slope under seismic loading［J］. Acta Seismologica Sinica, 2015, 37（1）: 180 − 191. （in Chinese with English abstract） DOI: 10.11939/j.issn:0253-3782.2015.01.016
|
| [12] |
崔玉龙,刘爱娟. 区域边坡地震危险性评价理论研究进展[J]. 地震工程学报,2022,44(3):518 − 526. [CUI Yulong,LIU Aijuan. Advances in the theory of seismic hazard assessment of regional slopes[J]. China Earthquake Engineering Journal,2022,44(3):518 − 526. (in Chinese with English abstract)]
CUI Yulong, LIU Aijuan. Advances in the theory of seismic hazard assessment of regional slopes［J］. China Earthquake Engineering Journal, 2022, 44（3）: 518 − 526. （in Chinese with English abstract）
|
| [13] |
李亮,褚雪松,庞峰,等. 地震边坡稳定性分析的拟静力方法适用性探讨[J]. 世界地震工程,2012,28(2):57 − 63. [LI Liang,CHU Xuesong,PANG Feng,et al. Discussion on suitability of pseudo-static method in seismic slope stability analysis[J]. World Earthquake Engineering,2012,28(2):57 − 63. (in Chinese with English abstract)] DOI: 10.3969/j.issn.1007-6069.2012.02.010
LI Liang, CHU Xuesong, PANG Feng, et al. Discussion on suitability of pseudo-static method in seismic slope stability analysis［J］. World Earthquake Engineering, 2012, 28（2）: 57 − 63. （in Chinese with English abstract） DOI: 10.3969/j.issn.1007-6069.2012.02.010
|
| [14] |
郑颖人,叶海林,肖强,等. 基于全动力分析法的地震边坡与隧道稳定性分析[J]. 防灾减灾工程学报,2010,30(增刊1):279 − 285. [ZHENG Yingren,YE Hailin,XIAO Qiang,et al. Stability analysis of earthquake slope and tunnel based on full dynamic analysis method[J]. Journal of Disaster Prevention and Mitigation Engineering,2010,30(Sup 1):279 − 285. (in Chinese with English abstract)]
ZHENG Yingren, YE Hailin, XIAO Qiang, et al. Stability analysis of earthquake slope and tunnel based on full dynamic analysis method［J］. Journal of Disaster Prevention and Mitigation Engineering, 2010, 30（Sup 1）: 279 − 285. （in Chinese with English abstract）
|
| [15] |
张迎宾,柳静,唐云波,等. 考虑边坡地形效应的地震动力响应分析[J]. 地震工程学报,2021,43(1):142 − 153. [ZHANG Yingbin,LIU Jing,TANG Yunbo,et al. Dynamic response analysis of seismic slopes considering topographic effect[J]. China Earthquake Engineering Journal,2021,43(1):142 − 153. (in Chinese with English abstract)]
ZHANG Yingbin, LIU Jing, TANG Yunbo, et al. Dynamic response analysis of seismic slopes considering topographic effect［J］. China Earthquake Engineering Journal, 2021, 43（1）: 142 − 153. （in Chinese with English abstract）
|
| [16] |
王来贵,向丽,赵娜,等. 地震作用下顺倾多弱层岩质边坡动力响应[J]. 中国地质灾害与防治学报,2021,32(6):18 − 25. [WANG Laigui,XIANG Li,ZHAO Na,et al. Dynamic response of down-dip multi-weak-layer rock slope under earthquake[J]. The Chinese Journal of Geological Hazard and Control,2021,32(6):18 − 25. (in Chinese with English abstract)]
WANG Laigui, XIANG Li, ZHAO Na, et al. Dynamic response of down-dip multi-weak-layer rock slope under earthquake［J］. The Chinese Journal of Geological Hazard and Control, 2021, 32（6）: 18 − 25. （in Chinese with English abstract）
|
| [17] |
林峻岑,严松宏,孙纬宇,等. 三向地震作用下错距岩质边坡共振特性研究[J]. 水文地质工程地质,2023,50(2):95 − 102. [LIN Juncen,YAN Songhong,SUN Weiyu,et al. A study of the resonance characteristics of a staggered rock slope under the tri-dimension earthquake wave[J]. Hydrogeology & Engineering Geology,2023,50(2):95 − 102. (in Chinese with English abstract)]
LIN Juncen, YAN Songhong, SUN Weiyu, et al. A study of the resonance characteristics of a staggered rock slope under the tri-dimension earthquake wave［J］. Hydrogeology & Engineering Geology, 2023, 50（2）: 95 − 102. （in Chinese with English abstract）
|
| [18] |
李郑梁,李建春,刘波,等. 浅切割的高山峡谷复杂地形的地震动放大效应研究[J]. 工程地质学报,2021,29(1):137 − 150. [LI Zhengliang,LI Jianchun,LIU Bo,et al. Seismic motion amplification effect of shallow-cutting hill-canyon composite topography[J]. Journal of Engineering Geology,2021,29(1):137 − 150. (in Chinese with English abstract)]
LI Zhengliang, LI Jianchun, LIU Bo, et al. Seismic motion amplification effect of shallow-cutting hill-canyon composite topography［J］. Journal of Engineering Geology, 2021, 29（1）: 137 − 150. （in Chinese with English abstract）
|
| [19] |
孙强强,薄景山,孙有为,等. 隧道结构地震反应分析研究现状[J]. 世界地震工程,2016,32(2):159 − 169. [SUN Qiangqiang,BO Jingshan,SUN Youwei,et al. A state-of-the-art review of seismic response analysis of tunnels[J]. World Earthquake Engineering,2016,32(2):159 − 169. (in Chinese with English abstract)]
SUN Qiangqiang, BO Jingshan, SUN Youwei, et al. A state-of-the-art review of seismic response analysis of tunnels［J］. World Earthquake Engineering, 2016, 32（2）: 159 − 169. （in Chinese with English abstract）
|
| [20] |
邓鹏. 单体边坡地形的地震动力响应及其放大效应的数值分析[J]. 地震学报,2020,42(3):349 − 361. [DENG Peng. Numerical parametric study of seismic dynamic response and amplification effects of slope topography[J]. Acta Seismologica Sinica,2020,42(3):349 − 361. (in Chinese with English abstract)] DOI: 10.11939/jass.20190133
DENG Peng. Numerical parametric study of seismic dynamic response and amplification effects of slope topography［J］. Acta Seismologica Sinica, 2020, 42（3）: 349 − 361. （in Chinese with English abstract） DOI: 10.11939/jass.20190133
|
| [21] |
门妮,孙有为,薄景山,等. 地震作用下边坡动力响应及影响因素研究[J]. 世界地震工程,2017,33(3):110 − 120. [MEN Ni,SUN Youwei,BO Jingshan,et al. Study on dynamic response and influence factors of slope under earthquake[J]. World Earthquake Engineering,2017,33(3):110 − 120. (in Chinese with English abstract)]
MEN Ni, SUN Youwei, BO Jingshan, et al. Study on dynamic response and influence factors of slope under earthquake［J］. World Earthquake Engineering, 2017, 33（3）: 110 − 120. （in Chinese with English abstract）
|
| [22] |
张江伟,周爱红,迟明杰,等. 边坡地震响应数值模拟中最优边界范围研究[J]. 防灾减灾工程学报,2022,42(1):34 − 41. [ZHANG Jiangwei,ZHOU Aihong,CHI Mingjie,et al. Research on boundary range in seismic response simulation of slope[J]. Journal of Disaster Prevention and Mitigation Engineering,2022,42(1):34 − 41. (in Chinese with English abstract)]
ZHANG Jiangwei, ZHOU Aihong, CHI Mingjie, et al. Research on boundary range in seismic response simulation of slope［J］. Journal of Disaster Prevention and Mitigation Engineering, 2022, 42（1）: 34 − 41. （in Chinese with English abstract）
|
| [23] |
郑颖人,叶海林,黄润秋,等. 边坡地震稳定性分析探讨[J]. 地震工程与工程振动,2010,30(2):173 − 180. [ZHENG Yingren,YE Hailin,HUANG Runqiu,et al. Study on the seismic stability analysis of a slope[J]. Journal of Earthquake Engineering and Engineering Vibration,2010,30(2):173 − 180. (in Chinese with English abstract)]
ZHENG Yingren, YE Hailin, HUANG Runqiu, et al. Study on the seismic stability analysis of a slope［J］. Journal of Earthquake Engineering and Engineering Vibration, 2010, 30（2）: 173 − 180. （in Chinese with English abstract）
|
Email alert
RSS
DownLoad: