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Mechanics in Engineering ›› 2010, Vol. 32 ›› Issue (5): 67-71.doi: 10.6052/1000-0879-lxysj2008-458

• Application study • Previous Articles     Next Articles

ANALYSIS OF LATERAL BEARING CAPACITY OF RIGID ROOT-FOUNDATION

龚维民,殷永高,童小东 and 单建   

  • Received:2008-10-10 Revised:2009-11-11 Online:2010-10-08 Published:2010-09-07

Abstract: Based on the Winkler beam theory, the working mechanism and the bearing capacity of a lateral-loaded root-foundation are investigated, with a model of calculation. The elastic solution of the lateral-loaded root-foundation is obtained by using the load transfer method. The lateral bearing capacity is calculated, and the distributions of the lateral displacement, flexural moment, shear force and soil resistance of the root-foundation are obtained. The results show that the lateral bearing capacity of the root-foundation is better than the traditional caisson foundation, with the top lateral displacement being reduced by 35%~45% and the lateral bearing capacity being increased by 45%~55%. The calculated results are in good agreement with the test results in the elastic range, therefore, the load transfer method can be applied in the engineering calculation of root-foundations.