中南大学学报（自然科学版）2012，Vol.43Issue(11)：4508-4513,6.
非饱和土边坡抗剪强度的力学参数影响及灵敏度分析
Sensitivity analysis and influence of mechanical parameters on shear strength of unsaturated soil slope
摘要
Abstract
On the basis of the double-stress invariant theory of unsaturated soil, the influence of soil parameters on safety factor was analyzed with strength reduction methods. Then the impact of soil parameters on safety factor was analyzed by calculating sensitivity. The calculation results show that the linear relationship can be obtained between safety factor and soil parameters. And the most significant factor of influence on safety factor is the moisture content. Moisture content, cohesion and angle of friction are designated as some important physical and mechanical parameters of unsaturated soil slope. The result can provide the basis for selecting parameters of slope reinforcement during rainfall infiltration.关键词
非饱和土边坡/抗剪强度/含水率/安全系数/灵敏度Key words
unsaturated soil slope/ shear strength/ moisture content/ safety factor/ sensitivity分类
矿业与冶金引用本文复制引用
刘子振,言志信,凌松耀,任志华,段建..非饱和土边坡抗剪强度的力学参数影响及灵敏度分析[J].中南大学学报（自然科学版）,2012,43(11):4508-4513,6.基金项目
云南省交通运输厅科技教育专项(2010(A)06-b) （2010(A）
台州学院培育基金资助项目(2012PY34) （2012PY34）
浙江省教育厅科研项目(Y200906988) （Y200906988）
