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EPS beads mixed lightweight soil is a lightweight , high strength of the new filling material , by mixing the raw soil of EPS particles , cement and water conservation from convenient construction technology , engineering performance , low-cost advantages , and can make full use of the waste of resources and protection of the environment and therefore has a broad application prospects . At present , the research is still relatively small, taking into account such a light soil is generally used in shallow dynamic triaxial test paper, mainly through low confining pressure raw soil is sand mixed light soil , light soil dynamic deformation characteristics of the preliminary study , the main contents include the following aspects : ( 1 ) a brief introduction of the test materials, instruments and test procedures , and test the key issues and considerations summarized . (2) analysis of the results of the test , and that this light soil stress-strain relationship can comply with the hyperbolic relationship is approximately linear change , but in the case of low confining pressure ; shear modulus with shear strain hyperbola form of decay , and the relationship with the confining pressure is proportional to the index ; damping Bibi sand and other conventional soil , an average of 0.1 , and the very small shear strain . ( 3 ) by the sample under different proportions and conditions tested , summed up the EPS content , cement content , curing period , dynamic load factors on the mixed light soil dynamic stress strain relations , the shear modulus and damping ratio investigated , and the law of which were analyzed .
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