煤炭开采沉陷区典型复垦工艺的土壤压实度分析

通过对典型复垦样地土壤压实的多角度分析,揭示了煤炭开采沉陷区典型复垦工艺的土壤压实规律,建立了不同复垦工艺的土壤压实模型,同时进行了压实度的空间分析。未复垦地土壤的压实度明显表现出从地表向下逐渐递增的趋势。泥浆泵复垦地的土壤压实度在垂直方向上向下为非线性递减。铲运机复垦地的压实度在垂直方向上无明显差异。泥浆泵、铲运机工艺与未复垦田块的土壤压实度差异显著。

Soil Compaction Analyses about Typical Reclamation Techniques in Subsidence Area of Coal Mining

The typical reclaimed sample land is tested and analyzed form many aspects,and discovered the laws of soil compaction for typical reclamation techniques are discovered.The soil compaction models for different reclamation techniques are established,in the meanwhile,the spatial analysis of soil compaction is processed.With the increasing of soil depth,the soil compaction of un-reclaimed land appears trend of increasing gradually,but the soil compaction of the land reclaimed by use of hydraulic dredge pump decreases nonlinearly in vertical,and the of the soil compaction of the land reclaimed by use of towed scraper has unobvious variation.There are significant difference of soil compaction among the land reclaimed by use of hydraulic dredge pump,the land reclaimed by use of towed scraper and the un-reclaimed land.