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[1]贺爱萍,付华,路洋波,等.保护层开采被保护层膨胀变形分析方法[J].中国安全生产科学技术,2016,12(8):60-67.[doi:10.11731/j.issn.1673-193x.2016.08.010]
 HE Aiping,FU Hua,LU Yangbo,et al.Analysis method on swelling deformation of protected seam in the process of protective coal seam exploitation[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(8):60-67.[doi:10.11731/j.issn.1673-193x.2016.08.010]
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保护层开采被保护层膨胀变形分析方法
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
12
期数:
2016年8期
页码:
60-67
栏目:
现代职业安全卫生管理与技术
出版日期:
2016-08-30

文章信息/Info

Title:
Analysis method on swelling deformation of protected seam in the process of protective coal seam exploitation
作者:
贺爱萍1付华2路洋波3霍丙杰 34
(1. 辽宁工程技术大学 安全科学与工程学院 ,辽宁 阜新 123000; 2. 辽宁工程技术大学 电气与控制工程学院, 辽宁 阜新 123000; 3. 辽宁工程技术大学 矿业学院,辽宁 阜新 123000; 4. 黑龙江 科技大学 黑龙江省普通高校 采矿重点实验室,黑龙江 哈尔滨 150022)
Author(s):
HE Aiping1 FU Hua2 LU Yangbo3 HUO Bingjie34
(1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, China; 2. College of Electrical and Control Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, China; 3. College of Mining Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, China; 4. Heilongjiang University of Science and Technology, Key Laboratory of Mining Engineering, College of Heilongjiang Province, Harbin 150022,China)
关键词:
保护层开采膨胀变形“四个定点围域面积”分析法面积尺度精度分 析
Keywords:
protective coal seam exploitation swelling deformation analysis method of "four fixed points enclosed area" area scale accuracy analysis
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2016.08.010
文献标志码:
A
摘要:
基于传统的膨胀变形特征分析多是对被保护层在法线方向上通过测量两个定点 的距离变化来表征,这种从“两个定点”距离变化角度分析膨胀变形的方法只考虑被保 护层在法线方向上的变形特征,不能反应出被保护层的横向变形。针对计算结果不能全 面、准确的反应煤岩体的膨胀变形特征问题,首次提出了保护层开采过程中被保护层膨 胀变形的“四个定点围域面积”分析方法,该方法通过面积膨胀变化分析被保护层膨胀 变形特征。研究分析了在开采实践和实验室中“四个定点围域面积”的监测方案、面积 分析计算方法和“四个定点围域面积”的合理尺度。以沙曲矿多煤层开采相似模拟为背 景,分析了不同尺度下“四个定点围域面积”分析法的精度。研究表明,“四个定点围 域面积”分析方法较“两个定点”分析方法精度更高,被保护层厚度1倍尺度围域内划 分的面积单元格越多,膨胀变形计算精度越高。
Abstract:
Based on the traditional feature analysis of swelling deformation, the swelling deformation of protected seam is mostly represented by measuring the distance change of two fixed points in the normal direction of protected seam, which only considers the deformation feature of protected seam in the normal direction, while can not reflect the lateral deformation of protected seam. Aiming at the problem that the calculation results can not reflect the swelling deformation feature of coal and rock body comprehensively and accurately, an analysis method of "four fixed points enclosed area" on swelling deformation of protected seam in the process of protective coal seam exploitation was proposed for the first time, which analyzed the swelling deformation feature of protected seam through the area swelling change analysis. The monitoring scheme, the analysis and calculation method of area and the reasonable scale of "four fixed points enclosed area" were put forward in the engineering practice and laboratory. Taking the similar simulation of multi coal seam mining in Shaqu mine as background, the accuracy of "four fixed points enclosed area" analysis method under different scales were analyzed. The results showed that it has higher accuracy than the "two fixed point" analysis method. The more area cells divided in the enclosed region with 1 times scale of protected seam thickness, the higher the calculation accuracy of swelling deformation.

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备注/Memo

备注/Memo:
国家自然科学基金项目(51504127);黑龙江省普通高校采矿工程重点 实验室开放课题项目(2014KF02)
更新日期/Last Update: 2016-08-30