청주지구 다짐화강토의 거동특성
청주지구 다짐화강토의 거동특성
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DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
여인덕
中科院分区：
文献类型：
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作者：
정태욱;이명원;강종범;여인덕
本文采用Lade的单一加工硬化本构模型预测风化花岗岩土的应力应变特性。样品土是在清州地区发现的风化花岗岩土。为了确定土的参数，进行了各向同性固结试验和圆柱形三轴压缩试验，此时室内试验保持95%的击实能，以便通过击实来调节破裂效果。在地基变形分析中，通过室内保持原位应力的离心模型加载试验验证了地基变形预测值。通过土工试验确定了土的基本物理性质，采用多屈服面相交的本构模型，在保持压实能不变的前提下，确定了本构模型所需的土参数（14）。采用离心试验对地基性状进行了分析。
This paper aimed at predicting the behaviour of stress-strain relation of decomposed granite soil using single work hardening constitutive model by Lade. Sample soil is weathered granite soil that be founded at Cheongju district. To determine soil parameters, isotropic consolidation tests and cylinderical triaxial compression tests are performed, at this time it was maintained compaction energy of 95% on the laboratory testing in order to regulate fracture effect by virtue of the compaction. In the deformation analysis of foundation, it was vertified by the model loading test through centrifuge test that maintained stress in situ as being laboratory test that deformation value of foundation was predicted. Basic physical properties is determined by geotchnical tests, and for application of constitutive model with multiple intersecting yeild surface, it keep constant compaction energy and then determined soil parameter(14) needed in constitutive model. The centrifuge test was tested for behaviour analysis of foundation.