Panzhihua Iron And Steel Slag Filler Experimental Study And Simulation, As A Foundation Back

This dissertation aims at having a profound study of the theory of groundsill by way of slag of the PanGang and its applications,at predicting the influencing of structure top of slag by slag.Mechanics,heat transfer,material science and computer science are integrated in this dissertation.Based on the experiments of slag backfilled,slag groundsill was simulated with numerical methods and the concerning theories was strudied.From the engineering applications of slag backfilled,the following contents are analyzed -Forming mechanism and mineral compose chemic component of slag of the PanGang.Probability and matter of groundsill by way of slag of the PanGang.Investigate capability of physics and mechanics of slag of the PanGang:most dry denSity,coefficient of thermal expansion,thermal conductivity,specific heat,heat of to hydrate.The temperature field and the thermal stress field of slag groundsill was investigate,the thermal stress field of slag groundsill was simulated with numerical methods.The results of experiments have shown:1.The most dry density of slag was close to gravel.2.coefficient of thermal expansion of slag was less,it was more fit to be groundsill material.3,thermal conductivity of slag was influenced by its chemical constitution and pore.4,specific heat of slag was not influenced by its grain size.5.solution heat of slag was influenced by its depth backfilled.the more deep of slag,the less of solution heat of slag.The results of theoretical research and numerical simulation have shown:1.Heat exchange equation and stretch motion equation were modificatory while coupling.2.Function curve of temperature of slag groundsill was fit according to temperature of slag groundsill test from field engineering.3.The ANSYS software was used to calculate the transient temperature field and the thermal stress.