• 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引(EI)收录期刊
  • Scopus数据库收录期刊
YIN Xin, ZHOU Hai-zuo, ZHENG Gang. Seismic bearing capacity of strip footings adjacent to slopes[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(z2): 95-98. DOI: 10.11779/CJGE2017S2024
Citation: YIN Xin, ZHOU Hai-zuo, ZHENG Gang. Seismic bearing capacity of strip footings adjacent to slopes[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(z2): 95-98. DOI: 10.11779/CJGE2017S2024

Seismic bearing capacity of strip footings adjacent to slopes

More Information
  • Received Date: August 01, 2017
  • Published Date: December 19, 2017
  • The seismic load has an adverse effect on the bearing capacity of the footings. However, few studies are performed to study its impact on the bearing capacity of slopes. In this study, a rigorous analysis in the framework of the upper-bound limit state plasticity, known as the discontinuity layout optimization (DLO), is adopted to investigate the performance of footings placed on the top of slopes considering the horizontal seismic action by the pseudo-static method. A set of design charts containing the horizontal seismic acceleration are presented for preliminary estimates. The results show the differences from the horizontal foundation, c, φ and γ of foundation soil will produce coupling actions for this problem. But in the existing researches, Nc and Nγ are calculated separately and linearly superposed without considering the complexity of slope projects, thus the bearing capacity of c-φ slope is underestimated.
  • [1]
    张鲁渝, 时卫民, 郑颖人. 平面应变条件下土坡稳定有限元分析[J]. 岩土工程学报, 2002, 24(4): 487-490. (ZHANG Lu-yu, SHI Wei-min, ZHENG Ying-ren. The slope stability analysis by FEM under plane strain conditions[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(4): 487-490. (in Chinese))
    [2]
    陈昌富, 唐仁华, 唐谚哲. 临近斜坡地基承载力计算新方法[J]. 湖南大学学报(自然科学版), 2008, 35(4): 1-6. CHEN Chang-fu, TANG Ren-hua, TANG Yan-zhe. A new calculation method for the seismic bearing capacity of shallow strip footings close to slope[J]. Journal of Hunan University (Natural Sciences), 2008, 35(4): 1-6. (in Chinese))
    [3]
    胡 啸. 基于极限分析上限有限元法的临坡地基承载力研究[D]. 长沙: 湖南大学, 2015. (HU Xiao. Study on the bearing capacity of foundation near the slope based on the finite element upper bound limit analysis[D]. Chaangsha: Hunan University, 2015. (in Chinese))
    [4]
    KUMAR J, RAO V B K M. Seismic bearing capacity of foundations on slopes[J]. Géotechnique, 2003, 53(3): 347-361.
    [5]
    GHOSH P, KUMAR J. Seismic bearing capacity for embedded footings on sloping ground[J]. Géotechnique, 2006, 56(2): 133-140.
    [6]
    CHOUDHURY D, RAO K S S. Seismic bearing capacity of shallow strip footings[J]. Geotechnical and Geological Engineering, 2005, 23(4): 403-418.
    [7]
    KUMAR J, CHAKRABORTY D. Seismic bearing capacity of foundations on cohesionless slopes[J]. Geomechanics & Geoengineering, 2013, 8(4): 347-361.
    [8]
    Limit State. Limit State: Geo manual v 3.0[M]. U.K: Sheffield, 2013.
    [9]
    LESHCHINSKY B. Bearing Capacity of Footings Placed Adjacent to c '- φ ' Slopes[J]. Journal of Geotechnical & Geoenvironmental Engineering, 2015, 141(6): 04015022.
    [10]
    KUMAR J, KUMAR N. Seismic bearing capacity of rough footings on slopes using limit equilibrium[J]. Géotechnique, 2003, 53(3): 363-369.
    [11]
    TERZAGHI K. Theoretical soil mechanics[M]. New York: N Y John Wiley & Sons Inc, 1943.
  • Related Articles

    [1]ZHAO Yun-ge, HUANG Lin-qi, LI Xi-bing. Identification of stages before and after damage strength and peak strength using acoustic emission tests[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(10): 1908-1916. DOI: 10.11779/CJGE202210017
    [2]LI Bo, YE Peng-jin, HUANG Lin, WANG Ding, ZHAO Cheng, ZOU Liang-chao. Deformation and acoustic emission characteristics of dry and saturated rock fractures[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(12): 2249-2257. DOI: 10.11779/CJGE202112011
    [3]XIE Qiang, TANG Jia-hui, LU Kun-peng, FU Xiang, BAN Yu-xin. Acoustic emission characteristics of cracked sandstones affected by different rotating angles of loading under splitting tests[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(10): 1862-1870. DOI: 10.11779/CJGE201810013
    [4]LIU Xiang-xin, ZHANG Yan-bo, LIANG Zhen-zhao, LIU Shan-jun. Recognition of frequency information in acoustic emission monitoring of rock fracture[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(6): 1096-1105. DOI: 10.11779/CJGE201706016
    [5]LI An-qiang, ZHANG Ru, AI Ting, GAO Ming-zhong, ZHANG Ze-tian, LIU Qian-ying, XIE Jing, JIA Zhe-qiang. Acoustic emission space-time evolution rules and failure precursors of granite under uniaxial compression[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(z2): 306-311. DOI: 10.11779/CJGE2016S2050
    [6]ZHAI Song-tao, WU Gang, SUN Hong, PAN Jian-hua. Acoustic emission characteristics of thermal cracking of marble under uniaxial compression[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 177-183.
    [7]ZHAO Xingdong, LIU Jianpo, LI Yuanhui, TIAN Jun, ZHU Wancheng. Experimental verification of rock locating technique with acoustic emission[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(10): 1472-1476.
    [8]XIE Qiang, Carlos Dinis da Gama, YU Xianbin. Acoustic emission behaviors of aplite granite[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(5): 745-749.
    [9]ZHANG Yuan, QU Fang, ZHAO Yangsheng. Acoustic emission phenomena of thermal cracking of sandstone[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(1): 73-75.
    [10]Wu Gang, Zhao Zhenyang. Acoustic emission character of rock materials failure during various stress states[J]. Chinese Journal of Geotechnical Engineering, 1998, 20(2): 82-85.

Catalog

    Article views (292) PDF downloads (254) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return