摘要
对东辉井田工程地质特征和开采技术条件进行了研究和分析,东辉井田为巨厚松散层覆盖下的煤系地层,含主要可采煤层6层,煤炭资源丰富,煤层倾角较缓,煤质优良,可采煤层为低灰、低硫、高发热量、低瓦斯的不粘煤及弱粘结煤,是良好的民用及动力用煤。含煤地层以碎屑沉积岩为主,层状结构、岩体各向异性,强度变化大,随着深度增加,岩石强度增高。地层岩性较复杂,地质构造较发育,风化作用及裂隙发育中等,主井、副井和风井在松散层段按冻结法、基岩段采用普通法施工井筒,可建生产能力为120万t/a大型煤矿。划分了工程地质勘探类型,对下步的工作和矿井设计提供了依据,并有一定的指导意义。
This paper analyzes the characteristics of the engineering geology and the exploiting technology of Donghui coalfield,which is covered by huge thick loose sediments.It comprises six minable coal beds,dipping gently,good quality.The coal is low ash,low sulfur,high calorie,low gas non-stick and coking coal,good for civil and power application.The coal-bearing sequence mainly belongs the debris sedimentary rock,stratified,intensity varying with depth.Its lithology is complicated and structure is developed.Weathering and fissures are moderate.The main,auxiliary and ventilation shafts can be built in accordance with gelation method in the loose sediments and general method in the base rock,which can be a large coal mine with 12×105 t/a.This paper classifies the exploration category of engineering geology,which provides reference for next shaft designing.
出处
《资源与产业》
北大核心
2011年第3期123-127,共5页
Resources & Industries
关键词
井田
工程地质
开采
技术条件
coal field
engineering geology
mining
technology
