Effect of granulated rubber on shear strength of fine-grained sand

来源 :Journal of Rock Mechanics and Geotechnical Engineering | 被引量 : 0次 | 上传用户:kaezhu1111
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Review of the literature related to the mixture of shredded tire and sand shows that,despite of the increase in shear strength due to addition of tire chips,granulated rubber causes reduction in shear strength of sand.In this study,the shear behavior of mixtures of fine-grained sand and 1-5 mm granulated rubber is investigated.Sixty direct shear tests were conducted on sandegranulated rubber mixtures with various rubber contents(0%,5%,10%,20% and 30%) at different relative densities(50%,70% and 90%) and different normal stresses(34.5 kPa,54.5 kPa,74.5 kPa and 104.5 kPa).The obtained results show that the granulated rubber improves the shear strength of fine-grained sand at medium relative density and low normal stress.The degree of improvement in shear strength is a function of rubber content,relative density and normal stress.The results show that at relative density of 50%,by adding 5% granulated rubber,the internal friction angle of sand increases from 35.1° to 39.2°.However,at relative densities of 70% and 90%,addition of granulated rubber to sand decreases its internal friction angle.The results also indicate that the behavior of sand becomes more ductile with increasing granulated rubber content.Adding granulated rubber leads to greater yielding strain and less tangent stiffness of sand.The maximum dilation angle decreases with the decrease in granulated rubber content.The stress ratio of sample at critical state(ψ= 0°) decreases with increasing granulated rubber content. Review of the literature related to the mixture of shredded tire and sand shows that, despite of the increase in shear strength due to addition of tire chips, granulated rubber causes reduction in shear strength of sand. In this study, the shear behavior of mixtures of fine-grained sand and 1-5 mm granulated rubber is investigated. Sixty direct shear tests were conducted on sandegranulated rubber mixtures with various rubber contents (0%, 5%, 10%, 20% and 30%) at different relative densities %, 70% and 90%) and different normal stresses (34.5 kPa, 54.5 kPa, 74.5 kPa and 104.5 kPa). The results obtained show that the granulated rubber improves the shear strength of fine-grained sand at medium relative density and low normal stress.The degree of improvement in shear strength is a function of rubber content, relative density and normal stress. The results show that at relative density of 50% by adding 5% granulated rubber, the internal friction angle of sand increases from 35.1 ° to 39.2 ° .However, at re lative densities of 70% and 90%, addition of granulated rubber to sand decreases its internal friction angle. The results also indicate that the behavior of sand becomes more ductile with increasing granulated rubber content. Adding granulated rubber leads to greater yielding strain and less tangent stiffness of sand.The maximum dilation angle decreases with the decrease in granulated rubber content. stress ratio of sample at critical state (ψ = 0 °) decreases with increasing granulated rubber content.
其他文献
现如今,我国已经进入了互联网发展的新时期,财务会计与管理将会发生新的变化,在互联网时代背景下,财务会计的管理质量将会有很大提升.财务会计将会面临新的机遇与挑战,其中会
利用扰动方法研究了一类非线性广义Landau-Ginzburg-Higgs方程.首先引入一个泛函,计算它的变分,求得Lagrange乘子.然后构造了原方程解的迭代关系式,得到了近似解.
期刊
Problems continue to be encountered concerning the traditional vacuum preloading method in field during the treatment of newly deposited dredger fills.In this p
近几年来随着计算机的应用和发展,会计电算化也随之产生,并随着计算机水平的不断提高而发展,在未来会计电算化将得到深化应用和发展.在我国目前的会计电算化的实际应用中还存
期刊
选用并联Timoshenko梁模型,将构成筒中筒结构的外框筒和内筒抗侧力结构单元看成竖立的并联悬臂梁.根据哈密顿理论体系,首先求出结构的总势能,推导出拉格朗日函数,继而求出结
研究相空间中离散力学系统对称性的摄动与绝热不变量.列出相空间中未受扰离散力学系统的特殊Lie对称性导致的Hojman型精确不变量.基于相空间中力学系统的高阶绝热不变量的定
用盆栽方法测定了 2个春小麦品种—地方品种和尚头与现代品种陇春 - 82 75在 5个土壤水分梯度下 ,单、混播时的水分消耗、水分利用效率、竞争能力和籽实产量。单播条件下 ,在
2009新年的钟声还在耳畔,我们又迎来了中华民族最隆重的传统节日--春节.在这辞旧迎新、阖家团圆的美好时刻,我代表青岛市人民政府向全市人民致以新春的祝福!向所有关心、支持