基于强度折减法的垃圾填埋体边坡可靠度分析  

The reliability analysis of Municipal Solid Waste Slope based on strength reduction FEM

作　　者：洪平[1] 刘敏[1] 

机构地区：[1]南昌航空大学,江西南昌330063

出　　处：《南昌航空大学学报（自然科学版）》2010年第1期81-85,共5页Journal of Nanchang Hangkong University(Natural Sciences)

摘　　要：文章考虑了垃圾填埋体的非饱和土性质,基于有限元强度折减法对垃圾填埋体边坡进行可靠性分析。考虑垃圾填埋体物理力学指标的变异性,用验算点法计算了垃圾土边坡的整体可靠度指标。结果表明,粘聚力C和内摩擦角φ的变异性对可靠度的影响较大。This paper has taken the character of unsaturated soil strength of garbage filling - burying body into consideration, and carries on the reliability analysis of the slope of garbage filling - burying body on the basis of the strength reduction FEM. Considering the physical mechanics indexes＇ variability of the garbage filling - burying body, this paper has calculated the overall reliability index of the garbage soil slope with FOSM. The result indicated that the variability of cohesion C and internal friction angle φ are in a greater impact on reliability.

关 键 词：垃圾填埋体 边坡 有限元强度折减法 可靠度 

分 类 号：TU361[建筑科学—结构工程]