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砂砾石与结构接触面强度与变形特性试验研究
引用本文:张治军 苏华 饶锡保 丁红顺. 砂砾石与结构接触面强度与变形特性试验研究[J]. 武汉水利电力大学(宜昌)学报, 2008, 30(1): 64-68
作者姓名:张治军 苏华 饶锡保 丁红顺
作者单位:[1]河海大学水利水电工程学院,南京210098 [2]水资源高效利用与工程安全国家工程研究中心,南京210098 [3]广西华蓝设计(集团)有限公司,南宁530001 [4]长江科学院水利部岩土工程与力学重点实验室,武汉430010
基金项目:“十一五”国家科技支撑计划课题(2006BAC14803);国家自然科学基金重点项目(50539010,50539110);水利部“948”项目(CT200612)
摘    要:通过长江科学院和四川大学华西岩土仪器研究所针对实际工程中的砂砾石料与结构物所形成的接触面联合研制的大型叠环单剪仪,对砂砾石料与凝土接触面及夹泥皮混凝土接触面力学特性进行了相关试验研究.试验结果表明,泥皮的作用对结构接触面特征影响较大,在试验的法向应力范围内,砂砾石料与混凝土板接触面的剪应力与相对剪切位移呈现出较好的双曲线关系,可用Clough—Duncan双线性模型进行描述;而砂砾石料与夹泥皮的混凝土板的接触面试验在达破坏阶段后切向变形具有刚塑性的变形特征,可用殷宗泽刚塑性模型进行描述.

关 键 词:砂砾石 接触面 单剪试验
文章编号:1672-948X(2008)01-0064-05
收稿时间:2007-10-23

Test Study on Characteristics of Strength and Deformation of Interface between Gravel and Structure
Zhang Zhijun, Su Hua, Rao Xibao, Ding Hongshun. Test Study on Characteristics of Strength and Deformation of Interface between Gravel and Structure[J]. , 2008, 30(1): 64-68
Authors:Zhang Zhijun   Su Hua   Rao Xibao   Ding Hongshun
Abstract:A series of experiments on the mechanical behavior of interface between the gravel and the concrete are conducted by the shear apparatus which has been invented by Yangtze River Scientific Research Institute and Geotechnical Research Institute of Sichuan University for the practical projects of interface between gravel and structure. The test results show that the slurry is closely related with the characteristics of the interfaces the shearing stress and the relatively shearing displacement of the interface can be descried as hyperbola, which can be analyzed by the hyperbolic model of the Clough-Duncan; When the interface reaches the damage stage, the shearing deformation appears rigid-plastic characteristic, which can be analyzed by the rigid-plastic model of Ying Zongze.
Keywords:gravel   interface   single shear test
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