Research On Mechanical Properties Of Municipal Solid Waste Incineration Bottom Ashes Reinforced Soil

Waste incineration ash is garbage of city life after the incineration of mixed ash which is the solid residue through separation processing the remnant of after removal of fly ash.This paper is used The bottom ash reinforced soil as a research object,and is intended to be used as a subgrade packing.In the case of a large number of experiments and field investigation,this paper analyzes the different reinforcement material after reinforcement,resulting in the strength of reinforced soil and deformation characteristics,the research content is as follows:The screening test and the compaction test of bottom ash shows the basic physical properties of the slag.It is found that The bottom ash from the size is highly similar to coarse grained soil and sandy soil through induction and summary.and gains the optimum moisture content and maximum dry density of bottom ash.Through large direct shear test,compression test and large scale triaxial test,obtaining the bottom ash of compression modulus,compression index and c,φ values.The data is also available for follow-up trials.For respectively using large-scale triaxial consolidation test on reinforced geogrid reinforced bottom slag and chamber bottom slag was studied,the different reinforced bottom slag in sigma 3 under the condition of stress(strain curve).Through analyzing curve and the shape of the curve under each of the confining pressure calculated the sigma 3 under the condition of different curve peak,whcih draw the conclusion that for geogrid reinforced bottom slag,reinforced layer spacing(n)and cloth have an influence on the reinforcement effect.it is obtained the optimal grid cloth reinforcement layers from contrast experiment analysis of the main influence and secondary effects.Using the large-scale triaxial consolidation test studied the lattice room reinforced bottom slag,lattice room reinforced bottom slag stress-strain curveunder three conditions obtained.When the reinforced layer n and lattice room height h as parameters,lattice room reinforcement stress-strain relationship of bottom slag,through the analysis of curve,analysis of the shape of the curve under each of the confining pressure,calculated the sigma 3 under the condition of different curve peak.And the results are based on comparative trials;The high h is the most important factor affecting the slag and reinforcement of the chamber.Finally from three perspective of the reinforcement effect of two kinds of reinforcement material compared: according to the stress strain curve,calculated bythe software,the failure point of strength is got.from the Angle of the breakdown point intensity were compared;According to the different strength of reinforced soil under various conditions of breakdown point,get a p-q curve,linear regression equation is obtained by linear fitting and the total sum of squared residuals,reinforced soil c and φ value is obtained by calculation,are compared from the perspective of c 、 φ value;The reinforcement effect coefficient was introduced,and the reinforcement effect under different working conditions was compared with the two kinds of reinforced materials.It is found that the higher and higher Chambers are the most effective.There are two kinds of materials,which represent flat and three-dimensional and three-dimensional reinforcement.Thus,the reinforcement of three-dimensional materials is the main direction of selecting the reinforcement.