ベンダーエレメントを用いたせん断波速度測定によるセメント系改良地盤の非破壊検査方法

概要

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A new, non-destructive technique to inspect the quality of cement-treated ground has been developed. The technique is based on the relationship between the strength, qu, and the shear wave velocity, Vs, of cement-treated soil. In the Vs-qu relationship, the value of qu increases as the value of Vs increases, and qu is uniquely expressed as an exponential function of Vs for every soil type. The relationship can be estimated by laboratory tests on specimens of cement-treated soil sampled from a construction site. Based on the Vs-qu relationship, the in-situ strength of the cement-treated ground can be estimated non-destructively and immediately by measuring the Vs-value of the ground with bender elements at the site. The technique is a simple and reliable method of inspecting the quality of cement-treated ground in the field.
社団法人日本建築学会の論文
2007-02-28