组装式两用大型直剪仪的研制  

Development of assembled Dual-purpose Large Direct Shear Apparatus

作　　者：邢心魁[1,2] 滕德涛[1] 张家文[1] 刘晶[1] 孙冠晓[1] 

机构地区：[1]桂林理工大学土木与建筑工程学院,广西桂林541004 [2]广西岩土力学与工程重点实验室,广西桂林541004

出　　处：《路基工程》2013年第5期31-34,共4页Subgrade Engineering

基　　金：国家自然科学基金项目(51068004);广西岩土力学与工程重点实验室基金项目(11-CX-03)

摘　　要：随着岩土工程的发展,能快速、准确地确定抗剪强度指标显得越来越重要,而大型直剪仪因能满足这些需求被广泛应用。从直剪仪的发展和研究现状对大型直剪仪进行详细论述,在此基础上,结合室内大型直剪仪的稳压和局限性的问题,对组装式两用大型直剪仪的结构组成、工作机理与特点做了分析。并用该大型直剪仪与常规直剪仪对同一干砂样进行试验,对数据进行全面比较。研究结果表明:使用该大型直剪仪所测得的土体抗剪强度,数据精确性和可靠性高,更具两用的优越性。As development of geotechnical engineering, quickly and accurately determining shear strength index becomes more and more important, hence large direct shear apparatus, since it can meet these requirements, is used widely. The detailed description was carried out in relation to the development, and the status quo of the research about this apparatus, based on which its structure, working mechanism and characteristics were analyzed, in combination with the voltage regulation and limitation of the indoor apparatus. With this large direct shear apparatus and a conventional one, the same dry sand sample was tested and then the testing results were compared comprehensively. The detected by this large direct shear apparatus is accurate study result shows that the shear strength of soil mass and reliable, leading to superior performance.

关 键 词：组装式 大型直剪仪 直剪试验 结构组成 工作机理 仪器特点 

分 类 号：TU411.7[建筑科学—岩土工程]