Calculation Method of Bracing Stiffness in Foundation Pit: A Review
DOI:
https://doi.org/10.54691/fse.v2i10.2557Keywords:
Excavation Engineering, Foundation Pit, Inner Support System, Inner-bracing, Bracing StiffnessAbstract
In the excavation engineering, the bracing stiffness is an important parameter reflecting the supporting performance of the inner bracing system. Bracing stiffness has great influence on the deformation of the retaining structure and the foundation pit, and its calculation method is the theoretical basis for the design and deformation analysis of the foundation pit. The limit equilibrium method, subgrade reaction method and finite element method used in the design, stability and deformation analysis are introduced in detail. Different calculation models and calculation methods of bracing stiffness are summarized in detail in each analysis method. The method of providing foundation pit retaining design standard and the optimization method proposed by scholars are introduced and analyzed in depth. It is suggested that the subsequent research should further establish a support stiffness calculation method taking influence of important parameters such as the difference of support stiffness and uneven support spacing.
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LI Y A, ZHONG Y F, ZHANG H C. Analysis of substantial state variables affecting deformation of foundation pit [J]. Geology and Investigation,2001,37(5):73-79.
CHEN C S, ZHANG S G, YU Y S. Deformation calculation of retaining structure of deep foundation pit [J]. Chinese Journal of Rock Mechanics and Engineering,2004,23(12):2065-2068.
JIN X L, FAN Y W, LI C Z, LIU Z P. ANALYSIS OF FACTORS AFFECTING SUPPORT STRUCTURE DEFORMATION OF FOUNDATION PIT WITH BRACE[J]. Chinese Journal of Rock Mechanics and Engineering, 2007,26(S1):3242-3249.
SUN S L, WU S M, FEI H J. Orthogonal design study for numerical modeling of deformation of multipropped deep foundation pit[J]. Rock and Soil Mechanics, 2005,26(11):80-83.
Editorial Department of China Journal of Highway and Transport. Review on China's Tunnel Engineering Research:2015[J]. China Journal of Highway and Transport, 2015,28(05):1-65.
YING H W, WANG X G, ZHANG J H, ZHOU J, ZHU C W. Limit equilibrium analysis of anisotropic soft clay foundation pit against uplift stability [J]. Engineering Mechanics,2016,23(09):131-137.
Beijing Municipal Commission of Housing and Urban-Rural Development. Technical Regulation of Building Foundation pit Support :JGJ 120-2012[S]. Beijing: China Building and Building Press,2012.
GENG J X, ZHANG K S, HE L, GENG Y C. Practical Calculation Method for Retaining Structure of foundation Pit and Its Application [J]. Journal of Harbin Engineering University,2009,30(08):872-877.
WANG H X, SUN Y Y. Finite element Algorithm and Experimental study of rod system considering excavation width of foundation pit [J]. Rock and Soil Mechanics,2012,33(09):2781-2787+2795.
CHEN K, YAN S W, SUN L Q, WANG Y W. Study on deformation characteristics of deep foundation pit under excavation unloading condition [J]. Rock and Soil Mechanics,2016,37(04):1075-1082.
ZHANG A J, ZHANG Z Y. Foundation reaction method for calculating internal force and deformation of supporting structure with center island method [J]. Chinese Journal of Geotechnical Engineering, 2014,36(S2):42-47.
Shanghai Municipal Commission of Urban and Rural Construction and Transportation. Technical specification for foundation pit engineering :DBJ 08-61-2010[S]. Shanghai: Shanghai Building Materials Market Management Station,2010.
Clough G W, Duncan J W. Finite element analyses of retaining wall behavior [J]. Journal of the Soil Mechanics and Foundations Division, 1971, 97(12):1657-1673.
SHENG C L, YU W, LI R M. Methods for iterative calculation of m value in flexibility fulcrum method[J]. Journal of Hohai University, 2015,43(01):44-48.
CHEN S K. Features of displacement at the top of enclosure piles and analysis of the stiffness formula of bracing system[J]. Journal of Fuzhou University, 2001,29(05):93-96.
YANG M, XIONG J H. Calculation of Horizontal Stiffness Coefficient of Bracing Structure in Foundation Excavation[J]. GEOTECHNICAL ENGINEERING TECHNIQUE,1999,01(01):14-17.
XU Y, HE L B, XU G P, WU H. Analysis of Calculation method of Bracing stiffness of foundation pit and Its Influence on internal force of retaining Pile [J]. Building Structure,2006,(11):62-63+85.
LIU H K. Analysis of Calculation methods for Supporting stiffness in foundation pit [J]. Journal of Jiamusi University (Natural Science Edition),2013,31(01):73-76.
YANG X L, SHI Z Y, YI D Q. Analysis of Multi-braced Retaining Structure in Deep Excavation [J]. Building Structure, 2000,30(05):36-39.
GU H L, ZHANG C Q, FAN Y Q, LI X K. The space analysis of frame bracing structure in soft soil deep excavation using finite element sub-structure computing technique[J]. China Civil Engineering Journal, 2000,33(03):78-83.
JIANG B, LOU D H, GUO Y. Application and study of circular strut system in deep excavations[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(S1):427-431.
LU P Y, LIU C, GU X L. Researches on bracing system of foundation pit using simplified space analytical method[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(04):471-474.
LIU M L, FANG Q, ZHANG D L, HOU Y J. Study on comprehensive stiffness of deep foundation pit internal bracing structure [J]. Rock and Soil Mechanics,2017,38(07):2059-2064.
ZHANG G, MAO H H. Study on comprehensive stiffness of retaining structure of deep foundation pit in soft soil area [J]. Rock and Soil Mechanics,2016,37(05):1467-1474.
YUAN H Q, ZHANG G W. Equivalent Conversion and Simplified Calculation of deep foundation pit supporting System with row pile and inner support [J]. Chinese Journal of Geotechnical Engineering, 2011,33(05):725-729.
LIU X L, CHEN F, JIA Y G. Analysis of Influencing factors for numerical calculation of Equivalent stiffness of Deep foundation pit support [J]. Journal of Ocean University of China, 2009, 39(2): 275-280.
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