针对巷道支护方案评价中的众多不确定性影响因素,从实际工程状况出发,选取14 项重要指标,分别进行定量和定性评价,采用熵计算各评价指标的权重,根据置信度判别准则进行优劣性评价,采用VC++语言建立基于未确知理论的巷道支护方案评价体系。将该评价体系应用于某金矿软破介质的巷道支护方案优选中,得出超前锚杆加U 型钢拱架为最佳支护方案。结果表明,该评价体系科学合理,可为类似工程的支护设计和生产管理提供依据。
For many uncertainty factors in the roadway support schemes evaluation, considering the actual engineering status, 14 key indicators are selected and the uncertainty problems are solved by quantitative and qualitative evaluations, respectively. The entropy theory is used to calculate the weights of the indicators, and the advantages and disadvantages of a support scheme are evaluated according to the credible degree recognition criteria. An evaluation system for roadway support schemes is finally set up based on unascertained theory using VC++ language. Furthermore, this evaluation system is used to evaluate roadway support schemes of soft and fractured medium in a gold mine. The result shows that the optimized support scheme is the forepoling bolt and U-formed arched falsework. This study indicates that the evaluation system is reasonable and can provide a basis for the support design and production management of similar projects.
[1] 朱川曲, 王卫军, 陈良棚. 基于神经网络的放煤巷道支护方案优选[J]. 岩石力学与工程学报, 2002, 21(10): 1483-1486. Zhu Chuanqu, Wang Weijun, Chen Liangpeng. Optimal selection of support patterns for caving roadway based on neural network[J]. Chinese Journal of Rock Mechanics and Engineering, 2002, 21(10): 1483-1486.
[2] 陈建宏, 郑海力, 刘振肖, 等. 基于优势关系的粗糙集的巷道支护方案评价体系[J]. 中南大学学报: 自然科学版, 2011, 42(6): 698-1703. Chen Jianhong, Zheng Haili, Liu Zhenxiao, et a1. Rough sets of laneway supporting schemes evaluation system based on dominance relation[J]. Journal of Central South University: Science and Technology Edition, 2011, 42(6): 1698-1703.
[3] 勾攀峰, 汪成兵, 张道福. 巷道支护效果模糊综合评判[J]. 矿山压力与顶板管理, 2003(4): 4-8. Gou Panfeng, Wang Chengbing, Zhang Daofu. Effect of fuzzy comprehensive evaluation in laneway supporting[J]. Journal of Mine Pressure and Roof Management, 2003(4): 4-8.
[4] 王光远. 论未确知性信息及其数学处理[J]. 哈尔滨建筑工程学院学报, 1990, 23(4): 52-58. Wang Guangyuan. Uncertainty information and its mathematical treatment[J]. Journal of Harbin Architecture and Engineering Institute, 1990, 23(4): 52-58.
[5] 姚金蕊, 罗曼, 李文成, 等. 开阳磷矿采矿方法的未确知测度优化选择[J]. 科技导报, 2012, 30(15): 45-48. Yao Jinrui, Luo Man, Li Wencheng, et a1. Optimal selection for unascertained measurement for the milling method of kaiyangphosphorite[J]. Science & Technology Review, 2012, 30(15): 45-48.
[6] 宫风强, 李夕兵, 董陇军, 等. 基于未确知测度理论的采空区危险性评价研究[J]. 岩石力学与工程学报, 2008, 27(2): 323-330. Gong Fengqiang, Li Xibing, Dong Longjun, et a1. Underground goaf risk evaluation based on uncertainty measurement theory[J]. Chinese Journal of Rock Mechanics and Engineering, 2008, 27(2): 323-330.
[7] 王飞跃. 基于不确定性理论的尾矿坝稳定性分析及综合评价研究[D]. 长沙: 中南大学, 2009. Wang Feiyue. Based on the uncertainty theory of tailings dam stability analysis and comprehensive evaluation[D]. Changsha: Central South University, 2009.
[8] 李树刚, 马超, 王国旗. 基于未确知测度理论的矿井通风安全评价[J]. 北京科技大学学报, 2006, 28(2): 101-103. Li Shugang, Ma Chao, Wang Guoqi. Colliery ventilation safety evaluation on the basis of uncertainty measurement[J]. Journal of University of Science and Technology Beiing, 2006, 28(2): 101-103.
[9] 曹庆奎, 刘开展, 张博文. 用熵计算客观型指标权重的方法[J]. 河北建筑科技学院学报, 2000, 17(3): 40-42. Cao Qingkui, Liu Kaizhan, Zhang Bowen. Calculation method of objective index weight by entropy[J]. Journal of Hebei Institute of Architectural Science and Technology, 2000, 17(3): 40-42.
[10] Dong Longjun, Hu Datao, Bai Yunfei. Unascertained average grade model for surrounding rock classification on hydraulic tunnels[M]// 2008 International Symposium on Safety Science and Technology: Progress in Safety Science and Technology (Vol VII). New York: Science Press, 2008: 2227-2231.
[11] 柏建彪, 王襄禹, 贾明魁, 等. 深部软岩巷道支护原理及应用[J]. 岩土工程学报, 2008, 30(5): 28-30. Bai Jianbiao, Wang Xiangyu, Jia Mingkui, et a1. Theory and application of supporting in deep soft roadways[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(5): 28-30.
[12] 姜耀东, 刘文岗, 赵毅鑫, 等. 开滦矿区深部开采中巷道围岩稳定性研究[J]. 岩石力学与工程学报, 2005, 24(11): 1857-1862. Jiang Yaodong, Liu Wengang, Zhao Yixin, et al. Study on surrounding rock stability of deep mining in Kailuan mining group[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(11): 1857-1862.
[13] 孙晓明, 何满潮. 深部开采软岩巷道耦合支护数值模拟研究[J]. 中国矿业大学学报, 2005, 34(2): 166-169. Sun Xiaoming, He Manchao. Numerical simulation research on coupling support theory of roadway within soft rock at depth[J]. Journal of China University of Mining & Technology, 2005, 34(2): 166-169.