the wind velocity variation of different slope directions at coal gangue piles in sunjiawan was studied with field measurement and statistical analysis.
采用野外观测与统计分析相结合的方法,对阜新市孙家湾煤矿矸石山不同坡向的风速变化进行研究。
the total area of coal gangue piles occupies 11.5 percent of the whole area of fushuncity. the weathering of coal gangue lead to the environment, especially underground water, seriously polluted.