›› 2014, Vol. 35 ›› Issue (4): 1141-1146.

• Geotechnical Engineering • Previous Articles     Next Articles

Study of depression of stress on base of sand prism based on fixed principal axes assumption

BI Gang1,WEI Jian-fei2,ZHOU Lei1   

  1. 1. Zachry Department of Civil Engineering, Texas A&M University, College Station, 77843, USA; 2. Guangxi Transportation Research Institute, Nanning 530007, China
  • Received:2013-01-04 Online:2014-04-10 Published:2014-04-18

Abstract: This paper focuses on the basal stress distribution and depression of stress of sand prism. The sand prism is divided into a stress known zone I and a stress unknown zone II based on the fixed principal axes (FPA) assumption. On several shear stress distribution assumptions, the stress state of zone II is available. The values of coefficient of earth pressure at rest on the sand centerline on different shear stress distribution assumptions are compared to the one proposed by Kulhawy. The following results are achieved; there is depression of normal stress on the base of sand prism, and the larger of the friction angle (the denser the sand prism) is, the more the depression of normal stress is; and the larger of the depression range is; the shape of the stress distribution and minimum value of normal stress and the location of the minimum normal stress are different on different assumptions; and the assumption of quadratic distribution and cubic distribution of shear stress are most reasonable.

Key words: basal stress distribution, FPA assumption, depression of stress, shear stress distribution assumption

CLC Number: 

  • TU 452
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] CHU Xi-hua, XU Yuan-jie. Studies on transformation from M-C criterion to Drucker-Prager criterions based on distortion energy density[J]. , 2009, 30(10): 2985 -2990 .
[2] WANG Gui-yao,LI Bin,LUO Jun,FU Hong-yuan. Study of soil-water charactiristics and matric suction measurement device for unsaturated silty soil[J]. , 2010, 31(11): 3678 -3682 .
[3] TIAN Jing-yuan, LIU Han-long, LI Yong-hong. Assessment of aseismic stability of pavement plate on downstream slope of embankment dam[J]. , 2009, 30(1): 135 -138 .
[4] GUO Zhong-xian, WANG Zhan-lei, YANG Zhi-hong. Field study of reactions of rigid pile composite foundation for high-rise building[J]. , 2009, 30(1): 163 -168 .
[5] FU Wei, WANG Ren, LI Zhi-qing, HU Ming-jian. Experimental study of electrical resistivity properties and alert performance of frozen soil under uniaxial load[J]. , 2009, 30(7): 1974 -1980 .
[6] JIA Qiang, YING Hui-qing, ZHANG Xin. Construction of basement in existing buildings by static bolt-pile[J]. , 2009, 30(7): 2053 -2057 .
[7] SHI Cheng-hua,PENG Li-min,LEI Ming-feng. Study of time-space united calculating method of stratum deformation caused by shield tunnel excavation[J]. , 2009, 30(8): 2379 -2384 .
[8] ZHU Fa-hua, HE Huai-jian. 3D stratum modeling based on ground penetrating radar and borehole data[J]. , 2009, 30(S1): 267 -270 .
[9] LU Jun-fu,WANG Ming-nian,JIA Yuan-yuan,YU Yu, TAN Zhong-sheng. Research on construction time of secondary lining of large section loess tunnel for high-speed railway[J]. , 2011, 32(3): 843 -848 .
[10] WANG Cheng-hua, AN Jian-guo. Numerical analyses of vertical bearing capacity of foundations with enlarged pile group[J]. , 2011, 32(S2): 580 -585 .