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现代黄河水下三角洲软土沉积物工程地质特性 被引量:14
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作者 冯秀丽 沈渭铨 +1 位作者 杨荣民 杨中卿 《中国海洋大学学报(自然科学版)》 CAS CSCD 1994年第S3期132-137,共6页
现代黄河水下三角洲沉积体系中存有许多对工程不利的软土夹层和透镜体,它们主要是由高含水、高孔隙性的粘土质粉砂和粉砂质粘土组成,由于形成时的快速沉积和波浪作用等因素,使其具有明显的欠固结性,且其固结程度随深度变化呈无规律... 现代黄河水下三角洲沉积体系中存有许多对工程不利的软土夹层和透镜体,它们主要是由高含水、高孔隙性的粘土质粉砂和粉砂质粘土组成,由于形成时的快速沉积和波浪作用等因素,使其具有明显的欠固结性,且其固结程度随深度变化呈无规律状.另外,因为软土中粘粒含量较高,颗粒问的水胶联结和静电引力与分子引力联结,而使其具有明显的触变性,从而使其较低的强度在受到破坏后也难以恢复. 展开更多
关键词 黄河水下三角洲 软土 触交性 固结
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Analysis of Contact Stress Distribution and Strength in Pin-Loaded Orthotropic Plates 被引量:1
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作者 Olanrewaju A luko 《Journal of Mechanics Engineering and Automation》 2012年第11期647-655,共9页
The development of an analytic solution in terms of laminate parameters is presented for contact stresses and joint strength in pin-loaded orthotropic plates. This involved the determination of complex stress function... The development of an analytic solution in terms of laminate parameters is presented for contact stresses and joint strength in pin-loaded orthotropic plates. This involved the determination of complex stress functions required to compute stresses in terms of a set of unknown coefficients for the specified displacement expressions satisfying the prescribed boundary conditions. The assumed Coulomb friction between the plate and the pin was used to provide the solution and iteration was also used to determine the extent of contact region. The results from present study showed good agreement with the available results in literature for all the joint configurations evaluated. 展开更多
关键词 Laminate parameters stress functions FRICTION orthotropic.
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