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首页> 外文会议>International symposium on deformation characteristics of geomaterials;IS-Seoul 2011 >Effect of crushability of Jcju beach sand on CPT and DMT results
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Effect of crushability of Jcju beach sand on CPT and DMT results

机译：济州海滩砂的可破碎性对CPT和DMT结果的影响

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Jcju sand, which contains both siliceous and calcareous materials, is the highly crushable one and has high extreme void ratios due to the grain angularity and intra-particle voids. In this study, a scries of C'PTs and DMTs are carried out on the specimens reconstituted in a calibration chamber to evaluate the properties of crushable Jcju beach sand. It is observed that the particle crushing during the DMT penetration into the Jcju sand results in the smaller horizontal stress index (K_D) and dilatometer modulus (Ed). The R_(D-qc/σ) relation is found to be more dependent on the compressibility of granular particles than the E_(D-qc) relation. It is concluded that the K_D of granular soil is more significantly affected by particle characteristics than E_D and qt..
机译：包含硅质和钙质材料的Jcju砂是高度易碎的砂，由于颗粒的棱角和颗粒内的空隙而具有很高的极限空隙率。在这项研究中，对在校准室中重构的标本进行了一系列的C'PTs和DMT评估，以评估可压碎的Jcju海滩砂的性能。可以看出，在DMT渗入Jcju砂土期间，颗粒破碎会导致较小的水平应力指数（K_D）和膨胀计模量（Ed）。发现R_（D-qc /σ）关系比E_（D-qc）关系更依赖于颗粒的可压缩性。得出的结论是，粒状土壤的K_D受颗粒特征的影响要大于E_D和qt。

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