岩土工程学报2011，Vol.33Issue(4)：554-558,5.
城市固体废弃物残余变形特性试验研究
Experimental study on residual deformation behaviors of municipal solid waste
摘要
Abstract
Medium-scale dynamic triaxial tests are carried out to investigate the residual deformation behaviors of simulated municipal solid waste (MSW).Based on revised Shen Zhu-jiang model, parameters for modeling residual deformation of MSW are derived.Given three typical failure criteria, the effect of stress levels on model parameters is studied, and a stress level index is fitted to model the residual deformation of MSW.As the MSW is a kind of strain-hardening material, no clear peak is shown on stress-strain curve.The MSW with the same consolidation ratio results in varied stress levels in the model if multiple failure criteria are considered.To eliminate the choice of failure criterion and make the model parameter derivation straightforward, the stress level is replaced by the consolidation stress ratio, which leads to a modified and simplified model to estimate residual deformation of MSW.The modified model is verified by using the test results and will be used conveniently regardless of different failure criteria.关键词
城市固体废弃物/残余变形/应力水平/改进沈珠江模型/固结应力比Key words
municipal solid waste/ residual deformation/ stress level/ modified Shen Zhujiang's model/ consolidation stress ratio分类
建筑与水利引用本文复制引用
邹德高,赵阳,徐斌,孔宪京,王强..城市固体废弃物残余变形特性试验研究[J].岩土工程学报,2011,33(4):554-558,5.基金项目
国家自然科学基金重点项目(50538080) （50538080）
国家自然科学基金青年科学基金项(50808032,50908032) （50808032,50908032）
辽宁省教育厅基金项目(2008S047) （2008S047）
