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矸石(固体废物)直接充填采煤技术发展现状

ISSN号：1673-3363
期刊名称：采矿与安全工程学报
时间：0
页码：395-401
分类：TD82[矿业工程—煤矿开采;矿业工程—矿山开采]
作者机构：[1]中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州221008, [2]中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州221008, [3]中国矿业大学江苏省资源环境信息工程重点实验室,江苏徐州221008
相关基金：国家自然科学基金重点项目（50834004）;江苏省创新学者攀登计划项目（BK2008007）;国土资源部公益性行业科研专项经费项目（200811050）;中国矿业大学科技基金项目（2007B003）
相关项目：长壁综采矸石充填与岩层运动控制研究

关键词：矸石直接充填采煤方法, 绿色开采, 充填开采矿压规律, 等价采高模型, coal mining with raw waste backfilling method, green mining, rock pressure behavior in mining with waste backfilling, equivalent mining thickness model

中文摘要：

总结了矸石直接充填采煤的技术框架,系统地介绍了综采矸石充填技术、普采矸石充填技术和掘巷充填技术的充填开采系统布置、关键设备及充填开采工艺;研发了矸石直接充填采煤技术中矸石自地表向井下运输的大垂深投料系统,并对其进行了优化设计;以综采矸石充填技术为例,分析矸石直接充填开采矿压规律的等价采高模型,得到了充填综采采场所需支护强度,以及充填综采与传统综采支护强度修正系数η,并对充填开采后的地表沉陷进行了预计和实测分析,得出了充填开采较传统综采采场矿压显现减弱、地表变形等级仅为轻微的结论;从实现煤炭资源绿色开采应重视的基础科学研究、重点技术攻关等方面对今后矸石（固体废物）直接充填采煤技术相关研究进行了展望.

英文摘要：

In this paper,technological system for coal mining with raw waste backfilling technology is summarized;system layout,key equipments and backfilling technics of coal minning with raw waste in fully-mechanized coal mining,conventionally-mechanized coal mining technology and waste backfilling with driving are presented.In addition,the deep feed-drill system carrying the waste from surface to underground is invented and optimized for this purpose.Taking coal minning with raw waste in fully-mechanized coal mining as an example,we build an equivalent mining thickness model to analyze rock pressure behavior under the condition of coal minning with waste backfilling technology so as to obtain the supporting intensity of stope and the correction factor η between the raw waste backfilling with fully-mechanized coal mining technology and the conventional one.The calculation and on-the-spot survey results show that the pressure behavior and surface deformation decrease to a certain extent.Finally,we hold that more attention should be paid to achieve the coal mining with raw waste backfilling technology,such as the basic research,the key technology.

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