Mechanism of grout bulb expansion and its effect on ground uplifting |
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Authors: | ZHANG Min WANG Xing-hua WANG You |
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Affiliation: | ZHANG Min,WANG Xing-hua,WANG You School of Civil and Architectural Engineering,Central South University,Changsha 410075,China |
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Abstract: | In order to study the uplifting effect of compensation grouting on ground surface and the upper structures,the ground heave induced by stratum expansion was considered as a stochastic process and the stochastic medium theory was applied to determine the heave and deformation of ground surface under uniform and non-uniform expansion models of spherical grout bulb.The corresponding calculating formulas and simplified methods were derived based on the hypotheses of radial expansion.Then,a numerical model,in wh... |
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Keywords: | grouting ground surface uplifting stochastic medium theory numerical simulation |
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