采用实地模拟试验,研究不同复垦机械在不同填充材料下不同的碾压次数对土壤物理性状的影响,并采用winner2000激光颗粒仪对其土壤颗粒组成进行了量测分析,研究不同机械不同填充材料复垦对物理性状的影响。结果表明:(1)经过3次碾压后,各复垦地块土壤容重变化趋势趋于平稳,但从碾压7次到碾压9次这个过程,是复垦过程中的一个敏感碾压区,碾压7次后土壤容重会有明显的上升,且在煤矸石、建筑垃圾和粉煤灰三种填充材料中,粉煤灰充填复垦地块在碾压5次后,容重明显高于煤矸石和建筑垃圾充填地块。(2)自卸汽车复垦过程碾压超过3次,其容重即超过1.5 g cm-3,碾压9次容重达到1.76 g cm-3,使土壤质地板结;履带式推土机碾压7次,其容重仍在1.44 g cm-3以下,适于作物生长。(3)经不同程度的碾压后,履带式复垦地块中,建筑垃圾、粉煤灰和煤矸石充填地块“物理性黏粒”含量的最大值分别为25.29%、26.66%和36.89%;自卸汽车复垦的地块中,建筑垃圾、粉煤灰和煤矸石填充的地块总含量的最大值分别为36.23%、32.11%和51.73%。 Field simulation experiments were conducted to study the effects of different rolling times of different reclamation machines on soil physical properties under different filling materials. The soil particle composition was measured with the winner2000 laser particle analyzer, and the effects of different filling materials Impact of Reclamation on Physical Properties. The results showed that: (1) The soil bulk density tended to be stable after 3 times of rolling, but the process of 7 times of crushing and 9 times of crushing was a sensitive roller compaction in reclamation After 7 times of rolling, the soil bulk density will obviously increase, and in coal gangue, construction waste and fly ash three kinds of filling materials, fly ash reclamation plots in rolling 5 times, the bulk density was significantly higher In the gangue and construction waste filling plots. (2) Dump truck reclamation process more than 3 times, the bulk density that is more than 1.5 g cm-3, crushed 9 times the bulk density of 1.76 g cm-3, so that the soil texture; knot bulldozer rolling 7 times, Its bulk density is still under 1.44 g cm-3, suitable for crop growth. (3) After being crushed to different degrees, the maximum value of “physical clay” content of the construction rubbish, fly ash and coal gangue in the reclaimed land is 25.29% and 26.66% And 36.89% respectively. Among the land reclaimed by dump trucks, the maximum total content of construction landfill, fly ash and coal gangue was 36.23%, 32.11% and 51.73% respectively.