好氧性垃圾填埋场的热变形分析

好氧性垃圾填埋场内的高温会产生温度应力,引起不均匀沉降,进而会引起衬垫以及排水、排气管道发生破坏。为了避免这些设施发生破坏,必须对高温引起足够重视。本文主要采用数值模拟的方法,对垃圾填埋场在温度作用下的变形进行分析。结果表明:垃圾填埋场在温度作用下,中部发生的变形量是最大的,为24.02 mm;垃圾填埋场的填埋深度与地表变形值之间的关系式为:y=5.32+0.95x;填埋场的应变具有对称性,应变最大值发生在顶端,为8.03×10-4.

Heat Deformation Analysis on the Aerobic Municipal Solid Waste (MSW) Landfill

Temperature stress occurs in the aerobic municipal solid waste （MSW）landfill will arouse differential settlement and destroy of liner,drainage ,exhaust. To avoid these destroys, the high temperature must be paid attention. Adopts the means of numerical simulation to analysis on the MSW deformation under temperature condition. The results show that the deformation amount is maximal （24.02 mm） in the landfill central section;The relation formula between landfill burying depth and deformation is y =5.32 ＋0.95x;The strain is symmetry and the strain maximum （8.03 ×10^-4） occurs on the landfill top.