摘要
应用室内模拟试验与野外试验相结合的方法， 对半干旱地区煤矸石山浅层矸石风化物与黄土的水分特性进行了比较研究． 结果表明： 矸石风化物因具有颗粒粗、孔隙大、渗透系数高、田间持水量、凋萎系数和累积蒸发量低的特点， 故有一定的保水性能； 尤其旱季， 矸石山剖面０～３０ ｃｍ 的有效水含量， 裸露矸石明显高于覆土矸石和黄土， 且其剖面水分含量在０ ～６０ ｃｍ 内与深度呈显著正相关． 并提出和论证了能充分利用水分的矸石山“薄层覆盖复垦”新技术．
Through the united methods of indoor model tests and field tests about percolation and evaporation, the comparative study on water properties of loess and the weathered products of gangue in the shallow layers of gangue mountains was finished. The results show that the weathered products of gangue have characteristics of coarse grain size, big void, high filtration coefficient, lower field moisture capacity, wilting coefficient and cumulative evaporation capacity; especially in dry seasons, the available water content of bare gangue is much more than that of loess and gangue covered by loess in the layer of 0～30 cm of the sections on the gangue mountains, and its water content at the depth of 0～60 cm on the section is obviously in positive relationship with the depth. Moreover, a new technology called thin covering reclamation was put forward and proved ,which can efficiently utilize the water in the weathered products of gangue.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1999年第5期533-537,共5页
Journal of China Coal Society
基金
国家"八五"重点科技攻关项目
