STUDY ON BEARING CAPACITY OF FOUNDATIONS OF SATURATED GRAVELLY SOIL IN THE RESERVOIR ZONE OF THE CHANGJIANG GORGES

Kong Weixue; Zheng Yingren

doi:10.13204/j.gyjz200504018

Volume 35 Issue 4

Dec. 2014

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Kong Weixue, Zheng Yingren. STUDY ON BEARING CAPACITY OF FOUNDATIONS OF SATURATED GRAVELLY SOIL IN THE RESERVOIR ZONE OF THE CHANGJIANG GORGES[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(4): 62-64. doi: 10.13204/j.gyjz200504018

Citation:

Kong Weixue, Zheng Yingren. STUDY ON BEARING CAPACITY OF FOUNDATIONS OF SATURATED GRAVELLY SOIL IN THE RESERVOIR ZONE OF THE CHANGJIANG GORGES[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(4): 62-64. doi: 10.13204/j.gyjz200504018

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STUDY ON BEARING CAPACITY OF FOUNDATIONS OF SATURATED GRAVELLY SOIL IN THE RESERVOIR ZONE OF THE CHANGJIANG GORGES

doi: 10.13204/j.gyjz200504018

1.
Civil Engineering Department of Logistic Engineering University Chongqing 400041

Received Date: 2004-09-23
Publish Date: 2005-04-20

Abstract

Abstract

The surface layer of the stratum in the Reservoir Zone of the Changjiang Gorges( RZCG) is loose deposits, The gravel content of gravelly soils in this region ranges from 30% to 70% .Storage of water in the RZCG is not taken into consideration when roads are being built.The gravelly soil foundation under inundation will be saturated, which will lead to the loss of its bearing capacity.Unfortunately, the standard currently in effect Specifications for Design of Ground Base and Foundation of Highway Bridges and Culverts ( JTJ 024- 85) , doesn't offer the values of the bearing capacity for saturated gravelly soil, which will bring inconvenience to the recheck and evaluation of the bearing capacity of saturated gravelly soil foundations.To solve the problem, experimental study is carried out firstly.Shear strength indexes of gravelly soil were tested under natural and saturated conditions, and the Laws of the development of cohesion and internal friction of gravelly soil are obtained.Based on testing results, the bearing capacity of the foundation of saturated gravelly soil are offered through a traditional formula for bearing capacity of gravelly soil, namley Bell solution of ultimate bearing capacity.The achievement provides reliable confidence to the recheck and evaluation of bearing capacity of gravelly soil foundations when water storage is done.
- bearing capacity of foundations,
- gravelly soil,
- saturation RZCG,

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References(7)

References

何沛田, 黄志鹏, 邬爱清.确定软岩岩体承载能力方法研究.地下空间, 2004, 24(1):89~93;

[2] 宋建波, 于远忠.剪切模式下均质岩基极限承载力的 Bell解.岩石力学与工程学报, 2002, 21(3):410~412;

[3] Wyllie D C. Foundations on Rock.2nd Edition. London, New York: EFNSPON, 1999;

[4] Bell F G. Engineering in Rock M asses. Oxford, U. K: Butter WorthHeinemann, 1994;

[5] 袁凡凡.非均质介质地基破坏机制及极限承载力分析研究.岩石力学与工程学报, 2004, 23(5):882~885;

[6] 刘文平, 时卫民, 孔位学, 等.水对三峡库区碎石土的弱化作用.岩土力学, 2005(12);

[7] 时卫民.三峡库区滑坡与边坡稳定性实用分析方法研究:[博士学位论文].重庆:后勤工程学院, 2001

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