条带开采与固体充填开采地表沉陷规律研究

Series No．467May一2015一一一一一一一一一一一一一一一一金一一属一一矿一一山METAL MINE 一一一一一一一一一一一一一一总第467期2015年第5期

收稿日期一2015-03-06

基金项目一 十二五 国家科技支撑计划项目(编号:2012BAB13B03),国家自然科学基金青年基金项目(编号:41104011),江苏高校优势学科建

设工程项目(编号:SZBF2011-6-B35),江苏省资源环境信息工程重点实验室基金项目(编号:JS201309)三

作者简介一王一炯(1989 ),男,硕士研究生三通讯作者一郭广礼(1965 ),男,教授,博士研究生导师三

条带开采与固体充填开采地表沉陷规律研究

王一炯1,2,3一郭广礼1,2,3一朱晓峻1,2,3一郭庆彪1,2,3

(1.中国矿业大学环境与测绘学院,江苏徐州221008;2.国土环境与灾害监测国家测绘地理信息局重点实验室,

江苏徐州221008;3.江苏省资源环境信息工程重点实验室,江苏徐州221008)

摘一要一目前,建筑物下采煤通常采用条带开采和充填开采,为了研究这2种建筑物下采煤方法的地表移动变形

规律,结合花园煤矿条带开采和固体充填开采实测数据,分别进行了地表静态二动态移动变形规律分析三研究得出:条带开采走向边界角56?,固体充填开采走向边界角57?二上山边界角62?二下山边界角53?;两者的地表移动盆地特征基本符合传统垮落法开采地表沉陷规律,但两者动态移动变形规律与其相比有一定的差异,在工作面回采过程中两者地表点下沉速度较小,出现多处峰值现象,基本不存在传统垮落法开采地表急剧下沉的活跃阶段三最后反演出地表预计概率积分法模型各参数三上述研究将为类似矿区地表沉陷预计以及开采方案设计提供一定的参考和指导三

关键词一建筑物下开采一条带开采一固体充填开采一地表沉陷一一中图分类号一TD325一一一文献标志码一A一一一文章编号一1001-1250(2015)-05-166-05Research on Regularity of Surface Subsidence in the Strip Mining and Solid Backfill Mining

Wang Jiong 1,2,3一Guo Guangli 1,2,3一Zhu Xiaojun 1,2,3一Guo Qingbiao 1,2,3

(1.School of Environment Science and Spatial Informatics ,China University of Mining and Technology ,Xuzhou 221008,China ;2.Key Laboratory for Land Environment and Disaster Monitoring of SBSM ,Xuzhou 221008,China ;3.The Main Laboratory of Resource Environment Information of Jiangsu ,Xuzhou 221008,China )

Abstract 一At present,the strip mining and backfilling mining are often used under buildings.In order to study the surface movement and deformation law of the two methods,combined with measured data of the strip mining and solid filling mining in Huayuan mine,study on the static,dynamic surface movement and deformation regularity respectively is made.It is shown as follows:strike boundary angle is 56?in the strip mining,and strike boundary angle,uphill boundary angle,downhill boundary angle are 57?,62?,53?separately in the solid filling mining.The subsidence basin features of the two methods are basically in line with the traditional caving mining,but the dynamic surface movement and deformation regularity of the two methods are different from the traditional caving mining.During the coal mining,sinking speed of the surface points is relatively small,more than one peak appears and almost no rapid sinking active phase of traditional caving mining exists.At last,the predicted pa-rameters of probability integral method are inversed based on the measured data of the strip mining and solid filling mining in Huayuan mine.All the study above can provide some reference and guidance for predicting surface subsidence and designing of

the coal mining in similar mining area.Keywords 一Under buildings mining,Strip mining,Solid backfill mining,Surface subsidence 一一我国资源分布素有 富煤二缺油二少气 的特点,煤炭资源具有其他能源无法替代的优势三近年来,我

国经济高速发展,其消费需求一直保持增长的态势,在今后相当长的一段时间内,煤炭资源在能源结构中

仍起到主导作用三我国虽然有着丰富的煤炭资源,但

是大量煤炭资源赋存在建筑物二铁路和水体等不易开

采的条件下,造成我国煤炭资源采出率偏低,矿井服务年限缩短,采区生产接续紧张等一系列问题[1-2]三据全国统配煤矿的不完全统计,我国国有重点煤矿 三下 压煤量达137．9亿t,其中建筑物下压煤量约为87．6亿t,约占 三下 压煤总量的63．5%[3]三面对 三下 压煤问题,国内外学者已做了大量四661四