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Volume 35 Issue 11
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GONG Xiao-nan, WU Cheng-jie, YU Feng, FANG Kai, YANG Miao. Shaft resistance loss of piles due to excavation beneath existing basements[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(11): 1957-1964.
Citation: GONG Xiao-nan, WU Cheng-jie, YU Feng, FANG Kai, YANG Miao. Shaft resistance loss of piles due to excavation beneath existing basements[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(11): 1957-1964.
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Shaft resistance loss of piles due to excavation beneath existing basements

  • 1. Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China; 2. Key Laboratory of Soft Soils and Geoenvironmental Engineering of Ministry of Education, Zhejiang University, Hangzhou 310058, China; 3. School of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou 310018, China

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  • Received Date: March 28, 2013
  • Published Date: November 19, 2013
    Graphical Abstract
    • Abstract
  • The excavation beneath the existing high-rise buildings, which changes the ground stress field, will result in changes of the stresses at the pile-soil surface and the pile end so as to reduce the bearing capacity of piles. Considering the field conditions, the bearing capacity of piles can not be obtained by field tests after excavation, so it is particularly necessary to evaluate the resistance loss using the theoretical analysis and the finite element simulation. The classical theory is used to calculate the ultimate shaft resistance of the piles. The Mindlin’s stress solution and a simplified method are adopted to consider the additional stress caused by excavation. Subsequently, the results of theoretical analysis are compared with those of the finite element analysis. The relationship among loss ratio of the ultimate shaft resistance, excavation width and depth is also analyzed. The results show that the loss ratio increases with the increase of excavation width and exhibits an initial linear increase followed by a more nonlinear increase until a constant value. Moreover, the loss ratio increases with the increasing excavation depth in a linear manner and decreases along the shaft from top to bottom.
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    • References (22)
  • [1]
    贾 强, 应惠清, 张 鑫. 锚杆静压桩技术在既有建筑物增设地下空间中的应用[J]. 岩土力学, 2009, 30(7): 2053-2057. (JIA Qiang, YING Hui-qing, ZHANG Xin. Construction of basement in existing buildings by static bolt-pile[J]. Rock and Soil Mechanics, 2009, 30(7): 2053-2057. (in Chinese))
    [2]
    杜 斌, 刘祖德, 聂向珍, 等. 既有建筑物基础托换技术中的钢管纤维桩工法[J]. 岩土力学, 2007, 28(5): 1040-1044. (DU Bin, LIU Zu-de, NIE Xiang-zhen, et al. Steel fiber pile technology in underpinning project of existing building[J]. Rock and Soil Mechanics, 2007, 28(5): 1040-1044. (in Chinese))
    [3]
    ZHENG Gang, PENG Si-yuan, CHARLES W W Ng, et al. Excavation effects on pile behaviour and capacity[J]. Canadian Geotechnical Journal, 2012, 49(12): 1347-1356.
    [4]
    黄茂松, 郦建俊, 王卫东, 等. 开挖条件下抗拔桩的承载力损失比分析[J]. 岩土工程学报, 2008, 30(9): 1291-1297. (HUANG Mao-song, LI Jian-jun, WANG Wei-dong, et al. Loss ratio of bearing capacity of uplift piles under deep excavation[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(9): 1291-1297. (in Chinese))
    [5]
    郦建俊, 黄茂松, 王卫东, 等. 软土地基中扩底抗拔中长桩的极限承载力分[J]. 岩土力学, 2009, 30(9): 2643-2651. (LI Jian-jun, HUANG Mao-song, WANG Wei-dong, et al. Analysis of uplift capacity of long enlarged-base pile in soft soil ground[J]. Rock and Soil Mechanics, 2009, 30(9): 2643-2651. (in Chinese))
    [6]
    胡 琦, 凌道盛, 陈云敏, 等. 深基坑开挖对坑内基桩受力特性的影响分析[J]. 岩土力学, 2008, 29(7): 1965-1970. (HU Qi, LING Dao-sheng, CHEN Yun-min, et al. Study of loading characters of pile foundation due to unloading of deep foundation pit excavation[J]. Rock and Soil Mechanics, 2008, 29(7): 1965-1970. (in Chinese))
    [7]
    陈锦剑, 王建华, 范 巍, 等. 抗拔桩在大面积深开挖过程中的受力特性分析[J]. 岩土工程学报, 2009, 31(3): 402-407. (CHEN Jin-jian, WANG Jian-hua, FAN Wei, et al. Behavior of up-lift pile foundation during large-scale deep excavation[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(3): 402-407. (in Chinese))
    [8]
    杨 敏, 逯建栋. 深开挖基坑回弹引起的坑中桩受力与位移计算[J]. 同济大学学报, 2010, 38(12): 1730-1735. (YANG Min, LU Jian-dong. A calculation of behavior of underpinning pile subject to excavation of deep foundation pit[J]. Journal of Tongji University, 2010, 38(12): 1730-1735. (in Chinese))
    [9]
    王卫东, 吴江斌. 深开挖条件下抗拔桩分析与设计方法[J].建筑结构学报, 2010, 31(5): 202-208. (WANG Wei-dong, WU Jiang-bin. Design and analysis of uplift pile under deep excavation[J]. Journal of Building Structures, 2010, 31(5): 202-208. (in Chinese))
    [10]
    李 勇. 既有建筑增层改造时桩基础的再设计试验研究[D]. 北京: 中国建筑科学研究院, 2010. (LI Yong. Experimental study on redesign of pile foundation for increasing storey on built building[D]. Beijing: China Academy of Building Research, 2010. ( in Chinese))
    [11]
    李 超. 桩式基础托换在地下加层工程中的应用研究[D]. 南京: 东南大学, 2008. (LI Chao. Study on the application of pile foundation underpinning in the basement-addition of existing buildings[D]. Ninjing: Southeast University, 2008. ( in Chinese))
    [12]
    CHANDLER R J. The shaft friction of piles in cohesive soils in terms of effective stresses[J]. Civil Engineering and Public Works Review, 1968, 63: 48-51.
    [13]
    BURLAND J B. Shaft friction of piles in clay-a simple fundamental approach[J]. Ground Engineering, 1973, 6(3): 30-42.
    [14]
    AZZOUZ A S, BALIGH M M, Whittle A J. Shaft resistance of piles in clay[J]. Journal of Geotechnical Engineering, 1990, 116(2): 205-221.
    [15]
    POTYONDY J G. Skin friction between various soils and construction materials[J]. Géotechnique, 1961, 11(4): 339-345.
    [16]
    徐志英. 以明特林(Mindlin)公式为根据的地基中垂直应力的计算公式[J]. 土木工程学报, 1957, 4(4): 485-497. (XU Zhi-ying. Calculation formula of vertical stress in foundation depends on Mindlin’s formula[J]. Chinese Journal of Civil Engineering, 1957, 4(4): 485-497. (in Chinese))
    [17]
    王士杰, 张 梅, 张吉占. Mindlin应力解的应用理论研究[J]. 工程力学, 2001, 18(6): 141-148. (WANG Shi-jie, ZHANG Mei, ZHANG Ji-zhan. Study on the application of theory of Mindlin’s stress solution[J]. Engineering Mechanics, 2001, 18(6): 141-148. (in Chinese))
    [18]
    浙江城建建筑设计院. 浙江饭店翻扩建工程施工图[R]. 杭州: 浙江城建建筑设计院, 1996. (Zhejiang Urban Construction and Architectural Design Institute. Design paper of Zhejiang Hotel Expansion Project[R]. Hangzhou: Zhejiang Urban Construction and Architectural Design Institute, 1996. (in Chinese))
    [19]
    杭州市勘察测绘院. 浙江饭店翻扩建工程地质勘察报告[R]. 杭州: 杭州市勘察测绘院, 1996. (Hangzhou Surveying and Mapping Institute. Geological survey report of Zhejiang Hotel Expansion Project[R]. Hangzhou: Hangzhou Surveying and Mapping Institute, 1996. (in Chinese))
    [20]
    陈福全, 杨 敏. 地面堆载作用下邻近桩基性状的数值分析[J]. 岩土工程学报, 2005, 27(11): 1286-1290. (CHEN Fu-quan, YANG Min. Numerical analysis of piles influenced by lateral soil movement due to surcharge loads[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(11): 1286-1290. (in Chinese))
    [21]
    RANDOLPH M F, WROTH C P. Analysis of deformation of vertically loaded piles[J]. Journal of Geotechnical Engineering, 1978, 104(12): 1465-1488.
    [22]
    JGJ 94—2008 建筑桩基技术规范[S]. 2008. (JGJ 94—2008. Technical code for building pile foundations[S]. 2008. (in Chinese))
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