|
Author(s): |
Yuqing Zhao, School of Earth and Environment Science, An hui University of Science and Technology, Huainan, Anhui, 232001
Guangquan Xu, School of Earth and Environment Science, An hui University of Science and Technology, Huainan, Anhui, 232001
Qingqing Li, School of Earth and Environment Science, An hui University of Science and Technology, Huainan, Anhui, 232001
Yaoping Chen, School of Earth and Environment Science, An hui University of Science and Technology, Huainan, Anhui, 232001 |
|
Abstract: |
According to the soil structure of reclamation test field’s unsaturated zone, three-layer structurereclamation soil model, consisted of nature soil, fly ash and coal gangue, is designed. Based on analyzingthree-layer’ physical and chemical properties of filling material, their relationship between matrix potentialand moisture of soil has been calibrated by a suction plane instrument, which indicates that matrixpotential is inversely proportional to corresponding moisture content of soil, and three-layer soil characterristiccurves are difference. Simulated the moisture variety of reclamation soil under the conditions ofatmospheric precipitation and evaporation, the results show that with changing of time , three moisture curvesexist the same trend ,but coal gangue moisture decreases faster than normal soil, and fly ash’s is the slowest.Affected different porous medium , and in the direction of depth ,relative moisture content of fly ash is morethan normal soil’s and normal soil is more than coal gangue’s.
|