|本期目录/Table of Contents|

[1]张向阳,冯飞胜,成云海.软弱底板特厚煤层综放面矿压特征研究与应用[J].中国安全生产科学技术,2014,10(7):135-140.[doi:10.11731/j.issn.1673-193x.2014.07.024]
 ZHANG Xiang-yang,FENG Fei-sheng,CHENG Yun-hai.Study on pressure characteristics of fully mechanized top coal caving mining with soft floor in ultra thick coal seam and its application[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(7):135-140.[doi:10.11731/j.issn.1673-193x.2014.07.024]
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软弱底板特厚煤层综放面矿压特征研究与应用
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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7期
页码:
135-140
栏目:
职业安全卫生管理与技术
出版日期:
2014-07-31

文章信息/Info

Title:
Study on pressure characteristics of fully mechanized top coal caving mining with soft floor in ultra thick coal seam and its application
作者:
张向阳冯飞胜成云海
(安徽理工大学 煤矿安全高效开采省部共建教育部重点实验室,安徽 淮南 232001)
Author(s):
ZHANG Xiang-yang FENG Fei-sheng CHENG Yun-hai
(Provincial and Ministry Cooperated Key Lab of Coal Mine Safety and High Efficient Mining, Anhui University of Science  and Technology, Huainan Anhui 232001, China)
关键词:
软弱底板特厚煤层矿压特征现场应用
Keywords:
soft and weak floor ultra thick seam characteristics of underground pressure site application
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2014.07.024
文献标志码:
A
摘要:
水帘洞煤矿3802工作面是彬长矿区首个采用8m小区段煤柱护巷、面临软弱底板问题的特厚煤层工作面,生产条件复杂,类似开采技术经验较少。针对此问题,采用岩石物理力学性质测试和计算机数值模拟等手段,明确软弱底板对综放面矿压影响机理;通过现场实测,对3802工作面矿压特征和覆岩移动规律等进行研究,结果表明,软弱底板条件下特厚煤层综放面较一般底板下特厚煤层综放面矿压显现特征不同,软弱底板吸收能量,将应力转移到深处,一定程度上消除了冲击地压危险,同时矿山压力显现平缓不明显,动载系数小。现场实测结果表明巷道围岩稳定,研究结果可以在类似条件下推广应用。
Abstract:
The 3802 working face in Shuiliandong Mine of Binchang mining area is the first working face of ultra thick coal seam using the 8m section pillar to protect roadway and with the weak floor problems. The production conditions are complicated, and there is less experience of similar mining technology. According to this situation, the influence mechanism of soft and weak floor to underground pressure of fully mechanized caving face was presented by means of numerical simulation and physical mechanical properties testing of rock. Through the site observation, the pressure characteristics and the movement law of cover strata in 3802 working face were studied. The results showed that the pressure behavior characteristics of fully mechanized face in ultra thick coal seam under weak floor are different from that of the general ones. Because the weak bottom can absorb energy, the stress is transferred to the depths. In a certain extent, the danger of rock burst is eliminated, the presentation of the mine pressure flat is not obvious, and the dynamic load coefficient becomes low. The measured results showed that the surrounding rock is stable, and the results can be applied in the similar condition.

参考文献/References:

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备注/Memo

备注/Memo:
国家自然科学基金项目(51174002,51274008);安徽省高等学校省级自然科学研究项目(KT2013A098)
更新日期/Last Update: 2014-07-30