十字板剪切试验推演黄骅港软土抗剪强度指标  

Shear Strength Indexes Deduced by Vane Shear Test for the Soft Soil in Huanghua Port Site

作　　者：张宏明[1] 高宗旗[1] 孙成科[1] Zhang Hongming;Gao Zongqi;Sun Chengke(CCCC First Harbor Consultants Co.,Ltd.,Tianjin 300222,China)

机构地区：[1]中交第一航务工程勘察设计院有限公司,天津300222

出　　处：《港工技术》2018年第A01期162-164,共3页Port Engineering Technology

摘　　要：十字板剪切试验是软土层现场试验的主要方法之一,国内外学者认为软土层各向异性,十字板剪切试验过程中软土层剪切破坏为不排水剪切,软土破坏的抗剪强度主要由剪切过程中十字板头形成圆柱体的垂直向和水平向抗剪强度之和。主要本文在前人研究的基础上,分析黄骅港软土形成的独特性,通过现场十字板剪切试验结果,分析整理并进行推演得出软土层不排水抗剪强度指标,结果为今后工程稳定性研究提供可借鉴的方法。Vane shear test is one of the main methods for field test of soft soil. Recently, it is believed by scholars that soft soil is anisotropic, and the shear failure in the process of vane shear test of soft soil is due to untrained shear, and the shear strength of soft soil is the sum of the vertical shear strength and horizontal shear strength at the cylinder cross section. On the basis of previous studies, analyses are made on the formation of soft soil in Huanghua port, thereby having deduced the shear strength of soft soil by using the results of vane shear test on site. The calculation results can be used for reference in the study of the stability of soft soil in the future.

关 键 词：十字板剪切试验 抗剪强度指标 软土 

分 类 号：TU447[建筑科学—岩土工程]