基于未确知测度的大冶铁矿接触带巷道稳定性评价
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摘要
接触带巷道稳定性影响因素及破坏机理存在不确定性,其准确评价直接影响着矿山的安全高效开采。为了提高接触带巷道稳定性评价的针对性,采用未确知测度理论,构建了接触带巷道稳定性评价指标体系并分级,建立了接触带巷道稳定性评价模型。以大冶铁矿尖林山-90 m水平的4条接触带巷道为研究对象,对其进行稳定性评价。结果表明:接触带巷道R_(01)、R_(03)和R_(04)的稳定性程度为Ⅱ级,R_(02)的稳定性程度为Ⅲ级,且稳定性程度从大到小的接触带巷道排序依次为R_(04)、R_(01)、R_(02)、R_(03);评价指标中巷道支护效果、矿岩接触面倾角、巷道埋深属于敏感性评价指标;采用未确知测度理论评价接触带巷道稳定性是可行的,为接触带巷道稳定性评价提供了一种新思路。
The factors affecting the stability and the failure mechanism of roadway in contact zone are uncertain,so the accurate evaluation on these factors directly affects the mining safety and efficiency of the mine. In order to improve the pertinency of the stability evaluation on roadway in contact zone,the unascertained measure theory was adopted to construct and grade the evaluation index system of the roadway stability in contact zone,and establish the stability evaluation model of roadway in contact zone. Finally,the evaluation was carried out on four roadways in contact zone at-90 m in Jianlin mountain of Daye iron mine. The results showed that the stability degree of roadway in contact zone R_(01),R_(03) and R_(04) are at grade II,R_(02) in contact zone is at grade Ⅲ,and the stability degree of roadway in contact zone is R_(04),R_(01),R_(02),R_(03) from high to low. As well,three evaluation indexes of roadway support effect,rock contact angle,and roadway depth belong to sensitive evaluation index. So,it is feasible to evaluate the roadway stability in contact zone with unascertained measure theory,which provides a new idea for evaluation of roadway stability in contact zone.
The factors affecting the stability and the failure mechanism of roadway in contact zone are uncertain,so the accurate evaluation on these factors directly affects the mining safety and efficiency of the mine. In order to improve the pertinency of the stability evaluation on roadway in contact zone,the unascertained measure theory was adopted to construct and grade the evaluation index system of the roadway stability in contact zone,and establish the stability evaluation model of roadway in contact zone. Finally,the evaluation was carried out on four roadways in contact zone at-90 m in Jianlin mountain of Daye iron mine. The results showed that the stability degree of roadway in contact zone R_(01),R_(03) and R_(04) are at grade II,R_(02) in contact zone is at grade Ⅲ,and the stability degree of roadway in contact zone is R_(04),R_(01),R_(02),R_(03) from high to low. As well,three evaluation indexes of roadway support effect,rock contact angle,and roadway depth belong to sensitive evaluation index. So,it is feasible to evaluate the roadway stability in contact zone with unascertained measure theory,which provides a new idea for evaluation of roadway stability in contact zone.
引文
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[2]刘晓云,叶义成,刘洋,等.基于未确知测度理论的巷道稳定性评价[J].安全与环境学报,2017,17(1):26-31.Liu Xiaoyun,Ye Yicheng,Liu Yang,et al.Research on roadway stability evaluation based on the theory of uncertainty measure[J].Journal of Safety and Environment,2017,17(1):26-31.
[3]赵毅鑫,姜耀东,张科学,等.基于扰动状态理论的回采巷道稳定性分析[J].中国矿业大学学报,2014,43(2):233-240.Zhao Yixin,Jiang Yaodong,Zhang Kexue,et al.Analysis of gateroad stability in underground coal mining based on disturbed state theory[J].Journal of China University of Mining&Technology,2014,43(2):233-240.
[4]张明磊,张益东,季明,等.基于模糊可拓综合评价方法的巷道支护参数优化[J].采矿与安全工程学报,2016,33(6):972-978.Zhang Minglei,Zhang Yidong,Ji Ming,et,al.Roadway support parameter optimizationbased on fuzzy extension synthetic evaluation[J].Journal of Mining&Safety Engineering,2016,33(6):972-978.
[5]王其虎.地下开采中接触带复合岩体非协调变形及控制研究[D].武汉:武汉科技大学,2015.Wang Qihu.Study on Contact Zone Composite Rock Mass Incompatible Deformation and Control in Underground Mining[D].Wuhan:Wuhan University of Science and Technology,2015.
[6]王光远.未确知信息及其数学处理[J].哈尔滨建筑工程学院学报,1990(4):1-9.Wang Guangyuan.Unascertained information and its mathematical treatment[J].Journal of Harbin University of Civil Engineering and Architecture,1990(4):1-9.
[7]刘开第,吴和琴,庞彦军,等.不确定性信息数学处理及应用[M].北京:科学出版社,1999.Liu Kaidi,Wu Heqin,Pang Yanjun,et al.Mathematical Processing and Application of Uncertain Information[M].Beijing:Science Press,1999.
[8]刘开第,吴和琴,王念鹏,等.未确知数学[M].武汉:华中科技大学出版社,2004.Liu Kaidi,Wu Heqin,Wang Nianpeng,et al.Unknown Mathematics[M].Wuhan:Huazhong University of Science and Technology Press,2004.
[9]刘洋,叶义成,刘晓云,等.基于未确知聚类法的巷道围岩稳定性预测[J].中国安全生产科学技术,2017,13(2):56-61.Liu Yang1,Ye Yicheng,Liu Xiaoyun,et,al.Stability forecast on surrounding rock of roadway based on unascertained clustering method[J].Journal of Safety Science and Technology,2017,13(2):56-61.
[10]邹磊,来兴平,王宁波,等.复杂地质条件下急斜厚煤层巷道变形特征[J].西安科技大学学报,2010,30(2):145-149.Zou Lei,Lai Xingping,Wang Ningbo.Roadway deformation characteristics of steep-thick coal seam under complicated geological conditions[J].Journal of Xi’an University of Science and Technology,2010,30(2):145-149.
[11]卢雅琪.大冶铁矿接触带巷道非等时距变形量预测[D].武汉:武汉科技大学,2016.Lu Yaqi.The Roadway Deformation Prediction of Unequal Interval Sequence in Daye Iron Mine Contact Zone[D].Wuhan:Wuhan University of Science and Technology,2016.
[12]唐礼忠,陈源,邓丽凡,等.扰动下含接触带巷道围岩力学响应及控制研究[J].铁道科学与工程学报,2016,13(2):309-315.Tang Zhongli,Chen Yuan,Deng Lifan,et al.The mechanical response features and control of surrounding rock with contact zone under dynamic disturbance[J].Journal of Railway Science and Engineering,2016,13(2):309-315.
[13]陈赞成,余斌,解联库,等.大型地下铁矿覆岩移动破坏规律数值模拟[J].有色金属工程,2015,5(S1):101-106.Chen Zancheng,Yu Bin,Xie Lianku,et al.Numerical simulation on overlying strata movement damage rule of large underground iron mines[J].Nonferrous Metals Engineering,2015,5(S1):101-106.
[14]曹庆奎,刘开展,张博文.用熵计算客观型指标权重的方法[J].河北工程大学学报:自然科学版,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.
[15]刘开第,庞彦军,孙光勇,等.城市环境质量的未确知测度评价[J].系统工程理论与实践,1999,19(12):52-58.Liu Kaidi,Pang Yanjun,Sun Guangyong,et al.The unascertained measurement evaluation on a city’s environmental quality[J].Systems Engineering-Theory&Practice,1999(12):52-58.