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| Analysis of the Influence of Lateral Deformation of Soft Soil Embankment on Nearby Building Foundation |
| CHAI Chun-yang1, ZHANG Guang-ze2, Wu Xi-yong1 |
| （1.Southwest Jiaotong University， Chengdu, Sichuan 610031, China; 2.China Railway Eryuan Engineering Group Co. Ltd, Chengdu, Sichuan 610031,China） |
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Abstract Abstract：Research purposes： Filling embankment on soft clay could not only lead to settlement, but also cause larger lateral deformation, which would generate a thrust force on nearby building foundation, and furtherly result in deformation，cracking and even collapse. Hence, it is required to research the distribution characters on lateral horizontal stress of soft soil embankment, and to put forward a judgment method of influence region of lateral deformation, also to calculate the horizontal thrust force of the foundation within the influence region, providing a scientific basis for arrangement and strengthening of the nearby building foundation. Research conclusions： This paper takes highway embankment as a research example, applies Flamant stress solution and drag force method and reaches the following conclusion: (1) With the increase of depth, lateral horizontal stress first increased and then decreased，showing an arch-shaped variation.(2) Influence of lateral deformation could be ignored when additional horizontal stress is less than connection strength, according to which the influence width and depth of lateral deformation could be judged. (3) The horizontal thrust force of the foundation within the influence region could be calculated by the drag force method. (4) The research conclusion can provide a theory basis for analysis of region of lateral deformation of soft soil embankment and calculation of horizontal thrust force.
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Received: 02 May 2017
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2017, Vol. 34 
