人为泥石流形成的固体物质补给特点研究——以神府东胜矿区为例

Research on Loose Materials Supply Characteristics Take Shenfu-Dongsheng Minesite as Example

在神府—东胜矿区人为泥石流沟道广泛野外调查的基础上，分析了该区人为泥石流形成的固体物质补给特点：①矿区建设过程中（包括采煤、修路、采石、基建等）的弃土弃碴是主要补给源；②工程建设加大临空面，改变了沟口侵蚀基准面，由此而激发的重力崩塌及加速的沟床溯源侵蚀是潜在的补给来源；③人为活动导致环境破坏，加速的土壤侵蚀是泥石流细粒物质的主体补给源。

In this paper, the source characteristics of one of three basic factors of man-made debris flow formation accumulation loose of materials were analysed Conclusions showed that, ① in the processes of constructing minesite,waste materials discarded is main source; ②it is potential loose materials supply source, that potential gravitation erosion and gully bed tracing to the source erosion are worsened because of project construction making the surface of steep slant wider and higher and the change of gully bed erosion basis; ③human irrational production activity causing environment change for the worse accelerated soil surface erosion and supplied the thin particulate materials for man-made debris flow