岩土工程学报2016，Vol.38Issue(8)：1507-1512,6.DOI:10.11779/CJGE201608019
基于透明土的取土管贯入扰动变形试验研究
Soil disturbance deformation induced by penetrationofsampler tube based on transparent soils
摘要
Abstract
Thesoil disturbance deformation induced by penetrationofsampler tube has a great influence on the accuracy of physical and mechanical evaluationof soilsin the soil investigation engineering. A small-scale model test systemis developed to study the non-intrusive measurement of the soil disturbance deformation characteristics during penetration ofsamplertube using the transparent soils and PIV (particle image velocimetry) technique. Sampling penetration testsare conducted, and the soil deformation characteristics during penetrationofsampler tubeare obtained. The test results show that the soil disturbance deformation increases withthepenetration depthofsampler tube, and the upheaval deformation of soils outside the sampler is dominated.Thedisturbance deformation of soils in the sampler is mainly upheaval, and the maximum upheaval deformation occurs at the middle of the sampler in the depth direction.The deformation distribution characteristics of soils on different sections in the sampler are nearly the same,andthe shear strain of soils between adjacent sections is relatively small.关键词
取土管/扰动变形/取土贯入/透明土/PIV技术Key words
sampler/disturbance deformation/sampling penetration/transparent soil/PIV technique分类
建筑与水利引用本文复制引用
吴跃东,罗如平,刘坚,杨冬..基于透明土的取土管贯入扰动变形试验研究[J].岩土工程学报,2016,38(8):1507-1512,6.基金项目
国家自然科学基金项目（51279049）；中央高校基本科研业务费项目 （）
