| 基于块体化程度和物元可拓理论的顶板稳定性分级方法及应用 |
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| 引用本文： | 陈庆发, 牛文静, 黄仁贵, 范秋雁, 陈金刚. 基于块体化程度和物元可拓理论的顶板稳定性分级方法及应用[J]. 工程科学学报, 2015, 37(12): 1550-1556. DOI: 10.13374/j.issn2095-9389.2015.12.003 |
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| 作者姓名： | 陈庆发 牛文静 黄仁贵 范秋雁 陈金刚 |
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| 作者单位： | 1. 广西大学资源与冶金学院, 南宁 530004; |
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| 基金项目： | 国家自然科学基金;广西自然科学基金 |
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| 摘 要： | 基于块体化程度和物元可拓理论,提出一种适用于顶板稳定性分级的BET法(classification method based on blockiness and extension theory).从三维空间上运用块体化程度指标刻化顶板围岩的完整性,建立以块体化程度、单轴抗压强度、节理条件和地下水条件为指标的评价体系;构建物元可拓模型的经典域、节域和待评物元,分析指标间不相容问题,用可拓层次分析法计算指标权重;综合计算关联度,制定出稳定性分级方法与标准.选取广西铜坑矿四个裂隙岩体试验区,进行BET分级法的工程应用研究.将BET法分级结果分别与RMR法、RSR法、Q法等传统方法及BT法的结果进行了对比.结果表明:与其他各类分级方法相比,BET法所选指标体系更全面,评价方法更客观、科学,评价结果更准确.
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| 关 键 词： | 顶板 稳定性分析 分级 块体化程度 物元可拓模型 |
| 收稿时间： | 2015-09-19 |
Roof stability classification method based on blockiness and the matter-element extension theory and its application |
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| CHEN Qing-fa, NIU Wen-jing, HUANG Ren-gui, FAN Qiu-yan, CHEN Jin-gang. Roof stability classification method based on blockiness and the matter-element extension theory and its application[J]. Chinese Journal of Engineering, 2015, 37(12): 1550-1556. DOI: 10.13374/j.issn2095-9389.2015.12.003 |
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| Authors: | CHEN Qing-fa NIU Wen-jing HUANG Ren-gui FAN Qiu-yan CHEN Jin-gang |
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| Affiliation: | 1. College of Resources and Metallurgy, Guangxi University, Nanning 530004, China;2. Department of Engineering Mechanics, Zhengzhou University, Zhengzhou 450001, China |
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| Abstract: | Based on blockiness and the matter-element extension theory,this article introduces BET method(classification method based on blockiness and the extension theory) especially suitable for roof stability analysis. The integrity of roof rock was reflected by blockiness in three-dimensional space,and an evaluation system was constructed with blockiness,uniaxial compressive strength,joint condition and groundwater condition as evaluating indicators. The classical domain,the segment and the object element of the model were established,the incompatible problems between these indexes were analyzed,and the index weights were calculated by the extension method. After the correlation degree was comprehensively calculated,the stability classification method and standard were determined. Selecting four test areas of fractured rock mass in Guangxi Tongkeng Mine,an engineering application study of BET classification method was carried out. The results of traditional classification methods,such as RMR method,RSR method and Q method,were respectively compared to that of BET method. It is shown that compared with these traditional classification methods,the index system selected by BET method is more comprehensive and its evaluation method is more objective and scientific. |
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| Keywords: | roofs stability analysis classification blockiness matter element extension models |
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