斜边非轴对称位移边界下球孔扩张挤土分析

›› 2011, Vol. 32 ›› Issue (9): 2681-2687.

• Fundamental Theroy and Experimental Research • Previous Articles Next Articles

Analysis of soil squeezing effect for spherical cavity expansion with inclined nonaxisymmetric displacement boundary

RAO Ping-ping^{1, 2}，LI Jing-pei^{1, 2}，LIU Ying³

1. Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China; 2. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China； 3. College of Civil Engineering and Architecture, Nanchang Institute Technology, Nanchang 330099, China

Received:2011-03-30 Online:2011-09-10 Published:2011-09-13

Abstract

Abstract: Based on the mirror image method for the spherical cavity expansion with nonaxisymmetric displacement boundary, assuming that the soil as the linear elastic constitutive model, the soil compaction displacement field is obtained through the modifications of surface boundary stress and inclination boundary stress, the soil compaction displacement field could consider different boundary angles, different distances from spherical cavity position to the boundary, etc. The results indicate that the influence of boundary inclination angle on the soil compaction displacement would be gradually smaller with the reduce of inclination angle; and the larger distance from spherical cavity position to the boundary, has the smaller influence on the soil squeezing displacement. The results provide some reference for similar engineering design and parameter settings.

Key words: nonaxisymmetric, mirror image method, spherical cavity expansion, soil compaction displacement

CLC Number:

TU 753

RAO Ping-ping ，LI Jing-pei ，LIU Ying. Analysis of soil squeezing effect for spherical cavity expansion with inclined nonaxisymmetric displacement boundary[J]., 2011, 32(9): 2681-2687.

References

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