|本期目录/Table of Contents|

[1]成云海,冯飞胜,樊俊鹏,等.特厚易发火煤层沿空巷道顶板离层分析及控制技术[J].中国安全生产科学技术,2014,10(12):29-34.[doi:10.11731/j.issn.1673-193x.2014.12.005]
 CHENG Yun-hai,FENG Fei-sheng,FAN Jun-peng,et al.Analysis and control technology of roof bedding separation at gob-side entry in super thick and prone to ignition coal seam[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(12):29-34.[doi:10.11731/j.issn.1673-193x.2014.12.005]
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特厚易发火煤层沿空巷道顶板离层分析及控制技术
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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12期
页码:
29-34
栏目:
学术论著
出版日期:
2014-12-31

文章信息/Info

Title:
Analysis and control technology of roof bedding separation at gob-side entry in super thick and prone to ignition coal seam
作者:
成云海冯飞胜樊俊鹏孙振平白金超
(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):
CHENG Yun-haiFENG Fei-shengFAN Jun-pengSUN Zhen-pingBAI Jin-chao
(The Key Laboratory of Safe and High-Efficiency Mining of Ministry of Education, Anhui University of Science and Technology, Huainan Anhui 232001, China)
关键词:
特厚煤层沿空掘巷覆岩运动离层控制
Keywords:
super thick coal seam gob-side entry overburden strata movement bedding separation control
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2014.12.005
文献标志码:
A
摘要:
特厚易发火煤层沿空巷道变形严重、覆岩裂隙和离层发育范围广,易与采空区进行气体交流,同时大大降低顶板的承载能力,影响巷道安全使用,故对巷道顶板离层机理的研究十分必要。以彬县水帘洞矿3802工作面沿空巷道为工程背景,通过直接顶的特性和岩层质量指数建立特厚煤层沿空巷道覆岩结构模型,依据离层机理的不同将顶板离层分为上部结构区、中部稳定区和下部离层区,并分别阐释其离层特征及控制思路;在上述基础上,提出离层控制方案;通过FLAC3D数值软件验证方案中锚杆(索)各项参数的合理性;最后监测结果表明支护方案设计合理,离层效果控制明显,工程实践证明了研究结果的可行性。
Abstract:
Roadway deformation is serious at gob-side entry in super thick and prone to ignition coal seam, with a wide range of strata crack and bedding separation development, so the gas exchange with goaf is easy, at the same time, the bearing capacity of roof is reduced, and the safety use of roadway is influenced, so it is necessary to study the mechanism of roadway bedding separation. Taking the gob-side entry in 3802 working face of Shuiliandong Mine in Binxian as engineering background, the strata structure model at gob-side entry in super thick and prone to ignition coal seam was determined through the characteristics of direct roof and quality index of rock. The roof bedding separation was divided into the upper structure area, the central stabilization area and lower bedding separation area based on the different bedding separation mechanism, and the bedding separation characteristics and control ideas was interpreted respectively. On the basis of the above research, the control scheme of bedding separation was put forward, and the reasonable parameters of bolt(anchor)was verified by using FLAC3D numerical software. The monitoring results showed that the design of support scheme was reasonable, the control of bedding separation was effective, and the engineering practice proved the feasibility of research results.

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备注/Memo

备注/Memo:
国家自然科学基金项目(51174002,51274008);山东省矿山灾害预防控制国家重点实验室培育基地开放基金项目(MDPC2012KF02)
更新日期/Last Update: 2014-12-30