起伏煤层大采高工作面顶板垮落规律研究

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摘要

针对某矿起伏煤层大采高工作面矿压显现剧烈的问题，通过理论分析、数值模拟等方式，研究了起伏煤层大采高工作面上覆岩层运移规律及垮落特征。结果表明，仰斜开采采场顶板不易形成结构，开采基本顶形成结构较大，工作面容易片帮冒顶，而俯斜开采有利于控制煤壁和端面的稳定。建议该工作面布置时采用俯斜推进，为类似条件下工作面的顺利回采提供理论和数据支持。

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	孔德中
	李小萌
	任志成

关键词 ：起伏煤层, 大采高工作面, 顶板垮落特征及运移规律

Abstract：

Based on the specific situation of dramatic underground pressure of mining face in some mine，The rule of overlying strata movement and caving characteristics of fully mechanized face with large mining height in ups and downs of coal seam were studied through theoretical analysis，numerical modeling etc al. The study showed that: inclined mining stope roof was not easy to form the structure, mining basic roof forming structure was larger, working face was prone to rib spalling and roof caving, inclined mining was helpful to control the stability of the coal wall and ending face. The down inclined mining was recommended during advance of the face, which provided theory and data support for the similar working face under the condition of smooth recovery.

Key words： ups and downs of coal seam fully mechanized face with large mining height the caving characteristic and migration regularity of roof

基金资助:

国家重点基础研究发展计划（973计划）资助项目（2013CB227903）；国家自然科学基金项目（51004109）；煤炭资源与安全开采国家重点实验室开放课题（SKLCRSM11KFB05）；中央高校基本科研业务费专项资金资助（2010QZ02）

作者简介: 孔德中（1988 —），男，河南永城人，博士研究生。E-mail：1361316170@qq.com

引用本文:

孔德中，李小萌，任志成. 起伏煤层大采高工作面顶板垮落规律研究[J]. 煤炭与化工, 2014, 37(1): 33-35，39. KONG De-zhong, LI Xiao-meng, REN Zhi-cheng. Large Mining Height Working Face of Coal Seam with Ups and Downs Roof Caving Rule Research. CCI, 2014, 37(1): 33-35，39.

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http://www.mtyhg.com.cn/CN/ 或 http://www.mtyhg.com.cn/CN/Y2014/V37/I1/33