摘要
在潼关金矿区206.8 km2范围内,采矿坑口达2 500处,矿渣堆944处,占压林地土地面积255.3×104m2,矿渣量达1 100×104m3,年增加30×104m3。矿渣占到了泥石流物源的90%。74.97%矿渣堆没有拦渣稳渣工程措施,86.37%废石堆占据河道,71%废石堆稳定性差、极差。7条峪道18条沟谷均是泥石流隐患沟。针对日益严重的矿渣型泥石流灾害隐患,提出了在加大防治泥石流灾害宣传、制定泥石流灾害防治规划、建立降雨预警预报制度的基础上,采取各种工程治理措施,避免和减轻群死群伤的重大泥石流灾害发生的对策建议。
In the range of 206.8 km^2in Tongguan gold mining area, there were about 2 500 pitheads and 944 slagheaps which have occupicd woodland area of 255.3× 10^4m^2. The quantities of slag were 1 100× 10^4m^3, increasing 30× 10^4m^3cvcry year. The 90% source of mud-rock flowwas slag. Thcrc were not any engineering measures of blocking slag and steady slag in 74.97% slagheaps. The waste stone heaps occupicd riverway were about 86.37%. The stability was bad and the baddest in 71% waste stone heaps. The hidden trouble valleys of mud-rock flow Included 7 valley-ways and 18 ravines. In the face of increasingly serious disaster of mud-rock flow from slag, Thc countermeasures and adviccs, including adopting all kinds of engineering measurcs to avoid and cortrolgrave disaster of mud-rock flow, were put forward on the base of increasing tile drumbeating on the prevention and the cureof disaster of mud-rock flow, constituting programon prevention and curing of disaster of mud-rock flow, estab- lishing the rainfall system of yellow alert and forecast.
出处
《山地学报》
CSCD
北大核心
2006年第6期667-671,共5页
Mountain Research
基金
大陆动力学国家重点实验室(西北大学)
中国国土资源大调查项目<重点矿区环境地质问题专题调查>(项目编号:200412300057)。~~
关键词
矿渣型泥石流
防治对策
潼关金矿区
mullock type debris flow
prevention suggestlon
gold mine area in Tongguan
作者简介
徐友宁（1963-），男（汉族），陕西长安人，博士研究生，高级工程师，主要从事矿山环境地质研究工作。E—mail：ksdzhj@sohu．com
