近距离多层油页岩水体下重复开采覆岩破坏高度预计
2016-01-11赵秋阳,谷海峰,康永华等
近距离多层油页岩水体下重复开采覆岩破坏高度预计
赵秋阳1,谷海峰2,康永华3,李磊3,孙万明3
(1.煤炭科学研究总院 开采设计研究分院,北京 100013;2.北方联合电力巴彦宝力格煤电项目筹备处,内蒙古 锡林郭勒盟 026000;
3.天地科技股份有限公司 开采设计事业部,北京 100013)
[摘要]以某矿为例,对油页岩上覆覆岩结构类型及岩性作出分析,在得出上覆岩层为软弱类型的前提下,分别运用经验公式法和数值模拟法对多层油页岩重复开采的覆岩破坏高度作出预计,得出了导水裂缝带最大波及高度为44.03m和38.40m的2种结果,对比2种方法的预计结果,选取偏于安全的经验公式法预计结果作为4,5,6,7层油页岩开采的最终覆岩破坏高度。
[关键词]近距离多层油页岩;重复开采;覆岩破坏高度
[中图分类号]TD83[文献标识码]A
[收稿日期]2014-09-17
DOI[]10.13532/j.cnki.cn11-3677/td.2015.01.023
[基金项目]中国煤炭科工集团有限公司科技创新基金面上项目(2014MS004)
[作者简介]赵秋阳(1988-),男,河北保定人,在读硕士研究生,主要从事水体下采煤研究。
Prediction of Overlying Strata Failure Height of Repeatedly-mining
Close-distance Oilshales under Water-body
ZHAO Qiu-yang1, GU Hai-feng2,KANG Yong-hua3, LI Lei3, SUN Wan-ming3
(1.Coal Mining & Designing Branch, China Coal Research Institute, Beijing 100013, China;
2.The Headquarters of Coal & Electricity Project of the North United Electric Co.,Ltd.,Bayanbaolige,Xilingol 026000,China;
3.Coal Mining & Designing Department,Tiandi Science & Technology Co., Ltd., Beijing 100013, China)
Abstract:After the overlying strata type of oilshales in a mine was analyzed to be soft, applying empirical formula and numerical simulation to predicting overlying strata failure height of repeatedly-mining close-distance oilshales,2 maximum water-connected fissure heights of were obtained to be 44.03m and 38.4m.By comparing 2 results, the result from empirical formula was selected as failure height of 4th,5th,6th and 7th oilshales.
Keywords:close-distance oilshales; repeatedly-mining; failure height of overlying strata
[引用格式]赵秋阳,谷海峰,康永华,等.近距离多层油页岩水体下重复开采覆岩破坏高度预计[J].煤矿开采,2015,20(1):78-81.
油页岩(又称油母页岩)是一种高灰分的含可燃有机质的沉积岩,它和煤的主要区别是灰分超过40%,与炭质页岩的主要区别是含油率大于3.5%。油页岩属于非常规油气资源,以资源丰富和开发利用的可行性而被列为21世纪非常重要的接替能源,它与石油、天然气、煤一样都是不可再生的化石能源。
油页岩开采前,为了更加合理地留设防水岩柱,为后续油页岩开采提供数据支撑,需要对油页岩开采后的覆岩破坏高度作出预计,以便于最大限度地解放水体下被压矿产资源。……
