边坡地震稳定性的临界加速度分析
|
摘要
提出了两种不同意义的边坡地震稳定性概念。一是按一定的抗震设防目标地震作用考虑,边坡现状强度与临界强度相比较而言的储备强度稳定性;二是设防目标地震作用与现状边坡临界地震作用相比较而言的现状强度稳定性。第一种边坡地震稳定性概念已经得到普遍采用,分析方法也比较成熟;第二种边坡地震稳定性概念受到的关注较少,衡量标准和分析方法尚有待探讨。主要针对第二种边坡地震稳定性——现状强度稳定性的衡量标准和分析方法进行了研究,提出了边坡现状强度地震稳定性评判的临界加速度准则,结合山西晋阳大佛边坡地震稳定性分析,形成了拟静力法与动力时程法相结合的边坡现状强度地震稳定性分析方法,拓展了边坡地震稳定性的概念,为边坡动力稳定性分析提供了一条新思路。
Two concepts of earthquake stability of slopes with different meanings are put foreword: reserved strength slope earthquake stability displayed with the different strength between its present strength and its critical strength of a slope under a fortification earthquake action;and present strength slope earthquake stability revealed by comparison between the fortification earthquake action and the critical earthquake action of the slope.The first concept has already been widely adopted,and its analysis method is well developed too.The second concept,however,is rarely mentioned,and its criterion and analysis method has yet to be set up.The second earthquake stability of slopes,including its criterion and analysis method,is studied.A critical acceleration criterion to judge the present strength earthquake stability of slopes is set up,and a synthetic analysis method of pseudo-static and dynamic time series analysis for present strength earthquake stability of slopes is formed and applied in the analysis of earthquake stability of Jinyang Grand Buddha slope in Taiyuan,China.
Two concepts of earthquake stability of slopes with different meanings are put foreword: reserved strength slope earthquake stability displayed with the different strength between its present strength and its critical strength of a slope under a fortification earthquake action;and present strength slope earthquake stability revealed by comparison between the fortification earthquake action and the critical earthquake action of the slope.The first concept has already been widely adopted,and its analysis method is well developed too.The second concept,however,is rarely mentioned,and its criterion and analysis method has yet to be set up.The second earthquake stability of slopes,including its criterion and analysis method,is studied.A critical acceleration criterion to judge the present strength earthquake stability of slopes is set up,and a synthetic analysis method of pseudo-static and dynamic time series analysis for present strength earthquake stability of slopes is formed and applied in the analysis of earthquake stability of Jinyang Grand Buddha slope in Taiyuan,China.
引文
1祁生文,伍法权,刘春玲,等.地震边坡稳定性的工程地质分析.岩石力学与工程学报,2004;23(16):2792—2797
2韩金良,吴树仁,何淑军,等.5.12汶川8级地震次生地质灾害的基本特征及其形成机制浅析.地学前缘,2009;16(03):306—326
3张春山,孙炜锋,谭成轩,等.四川汶川Ms8级地震重灾区地质灾害危险性评价和预测.地质通报,2009;28(08):1138—1145
4黄润秋,许强.中国典型灾难性滑坡.北京:科学出版社,2008
5殷跃平.中国典型滑坡.北京:中国大地出版社,2008
6伍法权,罗元华.中国典型工程边坡——三峡库区卷.北京:中国三峡出版社,2008
7史丹,陈蕴生,韩信,等.岩质边坡地震动力稳定性研究进展.西北农林科技大学学报(自然科学版),2006;34(2):147—152
8 Ling H I,Cheng,Alexander H D.Rock sliding induced by seismicforce.International Journal of Rock Mechanics and Mining Science,1997;4(6):1021—1029
9姚爱军,苏永华.复杂岩质边坡锚固工程地震敏感性分析.土木工程学报,2003;36(11):34—37
10 Siad L.Seismic stability analysis of fractured rock slopes by yielddesign theory.Soil Dynamics and Earthquake Engineering,2003;23(3):203—212
11陈蜀俊,党晓英,曾心传,等.奉节长江大桥北岸在地震荷载作用下的稳定性分析.岩石力学与工程学报,2004;23(4):657—662
12 Baker R,Shukha R,Operstein V,et al.Stability charts for pseudo-static slope stability analysis.Soil Dynamics and Earthquake Engi-neering,2006;26(9):813—823
13李维光,张继春.地震作用下顺层岩质边坡稳定性的拟静力分析.山地学报,2007;25(2):184—189
14郑颖人,叶海林,黄润秋.地震边坡破坏机制及其破裂面的分析探讨.岩石力学与工程学报,2009;28(08):1714—1723
15刘杰,李建林,张玉灯,等.基于拟静力法的大岗山坝肩边坡地震工况稳定性分析.岩石力学与工程学报,2009;28(08):1562—1570
16 AI-Homoud A S,Tahtamoni W W.Reliability analysis of three-di-mensional dynamic slope stability and earthquake-induced permanentdisplacement.Soil Dynamics and Earthquake Engineering,2000;19(2):91—114
17 Bray J D,Thaleia T.Simplified procedure for estimating earth-quake-induced deviatoric slope displacements.Journal of Geotechni-cal and Geoenvironmental Engineering,2007;133(4):381—392
18杜锦华.晋阳文史资料(第五辑).太原:政协太原市晋源区文史资料委员会,2001
19祁生文.边坡动力响应分析及应用研究.北京:中国科学院地质与地球物理研究所,2002
2韩金良,吴树仁,何淑军,等.5.12汶川8级地震次生地质灾害的基本特征及其形成机制浅析.地学前缘,2009;16(03):306—326
3张春山,孙炜锋,谭成轩,等.四川汶川Ms8级地震重灾区地质灾害危险性评价和预测.地质通报,2009;28(08):1138—1145
4黄润秋,许强.中国典型灾难性滑坡.北京:科学出版社,2008
5殷跃平.中国典型滑坡.北京:中国大地出版社,2008
6伍法权,罗元华.中国典型工程边坡——三峡库区卷.北京:中国三峡出版社,2008
7史丹,陈蕴生,韩信,等.岩质边坡地震动力稳定性研究进展.西北农林科技大学学报(自然科学版),2006;34(2):147—152
8 Ling H I,Cheng,Alexander H D.Rock sliding induced by seismicforce.International Journal of Rock Mechanics and Mining Science,1997;4(6):1021—1029
9姚爱军,苏永华.复杂岩质边坡锚固工程地震敏感性分析.土木工程学报,2003;36(11):34—37
10 Siad L.Seismic stability analysis of fractured rock slopes by yielddesign theory.Soil Dynamics and Earthquake Engineering,2003;23(3):203—212
11陈蜀俊,党晓英,曾心传,等.奉节长江大桥北岸在地震荷载作用下的稳定性分析.岩石力学与工程学报,2004;23(4):657—662
12 Baker R,Shukha R,Operstein V,et al.Stability charts for pseudo-static slope stability analysis.Soil Dynamics and Earthquake Engi-neering,2006;26(9):813—823
13李维光,张继春.地震作用下顺层岩质边坡稳定性的拟静力分析.山地学报,2007;25(2):184—189
14郑颖人,叶海林,黄润秋.地震边坡破坏机制及其破裂面的分析探讨.岩石力学与工程学报,2009;28(08):1714—1723
15刘杰,李建林,张玉灯,等.基于拟静力法的大岗山坝肩边坡地震工况稳定性分析.岩石力学与工程学报,2009;28(08):1562—1570
16 AI-Homoud A S,Tahtamoni W W.Reliability analysis of three-di-mensional dynamic slope stability and earthquake-induced permanentdisplacement.Soil Dynamics and Earthquake Engineering,2000;19(2):91—114
17 Bray J D,Thaleia T.Simplified procedure for estimating earth-quake-induced deviatoric slope displacements.Journal of Geotechni-cal and Geoenvironmental Engineering,2007;133(4):381—392
18杜锦华.晋阳文史资料(第五辑).太原:政协太原市晋源区文史资料委员会,2001
19祁生文.边坡动力响应分析及应用研究.北京:中国科学院地质与地球物理研究所,2002
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心