采用野外放水冲刷实验,对神府东胜煤田弃土弃渣侵蚀产沙规律进行了系统研究。结果表明:弃土弃渣堆积年限越短,可蚀性越大,侵蚀程度越强。经过4～7年的自然沉降过程,其表面的紧实度逐渐趋于稳定值。流量相同时不同下垫面条件下的产沙量1997年弃渣>1994年弃渣>煤渣>煤矸石。径流量、产沙量与放水流量呈线性关系,产沙量与径流量亦呈线性关系。集中的水流冲刷对弃土弃渣坡面造成严重的侵蚀,使含沙量保持在一个较高的水平,随着时间的变化含沙量出现剧烈的上下波动,总体上表现出逐渐减小的趋势,同时,会出现高含沙水流过程甚至泥石流过程。 Field scouring experiments were conducted to systematically study the spoilage and sediment erosion of Shenfu Dongsheng Coalfield. The results show that the shorter the deposition time of spoil, the more erodibility, the stronger the erosion. After 4 to 7 years of natural sedimentation process, the firmness of its surface tends to be stable. Sediment production under different underlying conditions at the same flow rate in 1997> residue in 1994> cinder> gangue. Runoff, sediment yield and discharge water flow was linear, sediment yield and runoff also showed a linear relationship. Concentrated water erosion causes serious erosion on spoil and spoil slopes, keeping the sediment concentration at a relatively high level. With time, the sediment concentration fluctuates dramatically, showing a decreasing trend as a whole Trend, at the same time, there will be high sediment flow process or debris flow process.