地基土固结快剪与直接快剪指标相关性规律研究  

Study on Index Correlation Rule between Consolidated Quick Shear and Direct Quick Shear of Foundation Soil

作　　者：安旭 陶梦玲 毛立杰 

机构地区：[1]中交第二航务工程勘察设计院有限公司,湖北武汉430071

出　　处：《重庆建筑》2017年第7期51-53,共3页Chongqing Architecture

摘　　要：为探究地基土固结快剪与直接快剪指标之间的相关性规律,该文以安徽华谊化工有限公司液体化工码头还建工程为依托,通过室内土工试验获取了各类地基土的剪切试验结果;定义了剪切比,分别对黏聚力和内摩擦角的固结快剪与直接快剪的相关性规律进行了拟合。研究结果表明:随着直接剪切黏聚力增大,黏聚力剪切比不断降低,随着直接剪切内摩擦角增大,内摩擦角剪切比不断降低;黏聚力与内摩擦角的剪切比-直接剪切拟合曲线均呈幂函数关系,两者拟合精度均超过0.93,表明地基土固结快剪与直接快剪指标之间存在较好的规律性。In order to explore the index correlation rule between the consolidated quick shear and direct quick shear of foundation soil, this paper, based on the compensation project for the liquid-chemical terminal of Anhui Huayi Chemical Co., ltd, obtains the shear test results of various types of founda- tion soils by indoor laboratory test. The shear ratio is defined, and the correlation rule between the consolidated quick shear and direct quick shear of the cohesion and internal friction angle is fitted respectively. The results show that with the increase of the direct shear cohesion, the shear ratio of cohesion force continuously decreases, and that of the internal friction angle steadily decreases with the increase of the internal friction angle of direct quick shear; the shear ratio of cohesion and internal friction angle-direct shear fitting curve shows a power function relationship, with the fitting accuracy over 0.93, in- dicating there lie a regular index rule between the consolidated quick shear and direct quick shear.

关 键 词：地基土体 土工试验 固结快剪 直接快剪 

分 类 号：TU411[建筑科学—岩土工程]