|本期目录/Table of Contents|

[1]熊祖强,王晓蕾.复合顶板综放面覆岩破坏及裂隙演化相似模拟试验[J].中国安全生产科学技术,2014,10(10):22-28.[doi:10.11731/j.issn.1673-193x.2014.10.004]
　XIONG Zu-qiang,WANG Xiao-lei.Similarity simulation test on overburden failure and cracks evolution under conditions of compound roof in full-mechanized top coal caving faces[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(10):22-28.[doi:10.11731/j.issn.1673-193x.2014.10.004]
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复合顶板综放面覆岩破坏及裂隙演化相似模拟试验
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
10
期数:
2014年10期
页码:
22-28
栏目:
学术论著
出版日期:
2014-10-31

文章信息/Info

Title:
Similarity simulation test on overburden failure and cracks evolution under conditions of compound roof in full-mechanized top coal caving faces
作者:
熊祖强1 ;  王晓蕾2
（1河南理工大学 能源科学与工程学院，河南焦作, 454000; 2黑龙江煤炭职业技术学院，黑龙江双鸭山, 155100）
Author(s):
XIONG Zu-qiang1 ;  WANG Xiao-lei2
（1. School of Energy Science and Engineering，Henan Polytechnic University，Jiaozuo Henan 454000，China； 2.Heilongjiang Vocational and technical college of coal，Shuangyashan Heilongjiang 155100，China)
关键词:
采矿工程; 综放开采; 覆岩破坏; 裂隙演化; 相似模拟
Keywords:
mining engineering; full-mechanized top coal caving; overburden failure; cracks evolution; similarity simulation
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2014.10.004
文献标志码:
A
摘要:
煤层回采过程中，覆岩破坏特征以及裂隙演化规律对于矿井水、瓦斯防治具有重要意义。采用相似模拟试验对某煤矿复合顶板大采高综放工作面覆岩破坏及裂隙演化规律进行研究。研究结果表明：复合顶板大采高综放开采垮落带高度为326m，裂隙带高度为646m；煤层回采过程中对顶板覆岩支承压力的影响，近煤层大，远煤层小；覆岩采动裂隙倾角以中角度，宽度以中宽度为主，且裂隙数量随着远离煤层而逐渐减少；采动过程中，近距离煤层覆岩为采动裂隙聚集区，覆岩裂隙密度曲线呈现为“波浪”型。
Abstract:
In recovery process of coal seam, the overburden failure characteristics and law of cracks evolution are of great significance to water and gas prevention in mine. Based on the similarity simulation test，the laws of overburden failure and cracks evolution under conditions of compound roof and large mining height in full-mechanized top coal caving faces were studied. The results showed that： Caving zone height is 32.6m and fractured zone height is 64.6m； The effect of mining on overburden bearing pressure is great in close coal and little in far coal seam； The fracture characteristics are mainly with middle angle and middle width, and the number of fissure gradually decreases with far away from coal seam； The fractures cluster region mainly focuses near the coal wall, and the distribution curves of fractures density in overlying strata presents wave-shapes.

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备注/Memo

备注/Memo:
国家自然基金面上基金项目（51274088）；青年科学基金项目（50804013）
更新日期/Last Update: 2014-12-12