|
| 摘要: |
| 通过单向压缩试验,分析了砂-轮胎橡胶颗粒轻质土工填料的压缩变形规律和卸载回弹变形规律,提出了适合该材料的压缩应变-荷载曲线方程.通过直剪试验,研究了砂-轮胎橡胶颗粒轻质土工填料的剪应力-剪位移关系,分析了配比、应力状态等对剪切特性的影响.通过三轴压缩试验,研究了砂-轮胎橡胶颗粒轻质土工填料在不同围压下的偏应力-轴向应变-体积变形关系,分析了配比和应力状态对三轴剪切特性的影响.该研究为废弃轮胎在工程领域的再利用提供了良好的参考. |
| 关键词: 轻质土工填料 砂 轮胎橡胶颗粒 压缩 剪切 应力-应变关系 |
| DOI： |
| 分类号:TU41 |
| 基金项目:江苏省基础研究计划(自然科学基金)资助项目(BK2009027);;2008年度科技培育计划资助项目 |
|
| Experimental Study On Sand-Shredded Tire Lightweight Fills |
|
DENG An FENG Jin-rong
|
| Abstract: |
| Sand-shredded tire lightweight fills were prepared by blending sands with shredded tire with proper proportions.A laboratory investigation was conducted to study the materials' compression and shear deformation behaviors.A compression-load model was proposed by 1D compression tests.Rebound-reload tests was also conducted to reveal materials' plastic deformation.The materials' shear stress-displacement behavior were studied by direct shear tests.Deviatoric stress-axial strain-volumetric strain curves were ob... |
| Key words: lightweight fill sand shredded tire bead compression shear stress-strain curve |
