采场结构参数优化的Mathews稳定图法
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摘要
由于开采技术优化和开采设备的更新,九仗沟金矿开采过程中出现矿房设计过于保守、开采成本过高等问题。针对九仗沟金矿破碎带内矿体开采的相关问题,进行地下矿岩地质信息的编录,调查统计出Mathews稳定图法所需要的参数。根据这些参数,应用Mathews稳定图法中稳定系数的计算方法计算出每个矿房的稳定系数,然后通过矿房稳定系数在Mathews稳定图上计算出每个矿房的水力半径值和极限跨度。研究结果表明:矿房的极限跨度为7.5 m。为保证安全生产,实际生产中矿房跨度应该控制在7.5 m以下。
Due to the optimization of mining technology and the updating of mining equipment,the problems of over-conservative ore chamber design and over-high mining cost occurred in the mining process of Jiuzhanggou gold mine.Aiming at the related problems of ore body mining in the broken belt of Jiuchanggou Gold Mine,the geological information of underground ore and rock was compiled,and the parameters required by the Mathews stability diagram method were investigated and calculated.According to these parameters,the stability coefficient of each chamber was calculated by using the calculation method of stability coefficient in the Mathews stability diagram method,and then the hydraulic radius value and limit span of each chamber were calculated on the Mathews stability diagram by using the stability coefficient of each chamber.The results show that the limit span of the chamber is 7.5 m.In order to ensure safe production,the actual span of the ore house should be controlled below 7.5 m.
Due to the optimization of mining technology and the updating of mining equipment,the problems of over-conservative ore chamber design and over-high mining cost occurred in the mining process of Jiuzhanggou gold mine.Aiming at the related problems of ore body mining in the broken belt of Jiuchanggou Gold Mine,the geological information of underground ore and rock was compiled,and the parameters required by the Mathews stability diagram method were investigated and calculated.According to these parameters,the stability coefficient of each chamber was calculated by using the calculation method of stability coefficient in the Mathews stability diagram method,and then the hydraulic radius value and limit span of each chamber were calculated on the Mathews stability diagram by using the stability coefficient of each chamber.The results show that the limit span of the chamber is 7.5 m.In order to ensure safe production,the actual span of the ore house should be controlled below 7.5 m.
引文
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[9] 赵兴东,刘杰,张洪训,等.基于摄影测量的岩体结构面数字识别及采场稳定性分级[J].采矿与安全工程学报,2014,31(1):127-133.
[10] 许宏亮,刘召胜,石露,等.用Mathews稳定图法与数值分析法优化充填开采矿山采场结构参数[J].金属矿山,2015(12):19-23.
[11] 王炳文,徐鹏,张浩,等.九仗沟金矿采场岩体稳定性分析及参数优化[J].矿业科学学报,2018,3(6):561-567.
[12] 罗淦华,吴爱祥.基于Mathews稳定图法的采场结构参数确定[J].金属矿山,2017(2):31-35.
[2] 丁明龙,宋卫东,江国建,等.上向水平进路充填采矿法在大尹格庄金矿的试验研究[J].有色金属:矿山部分,2013,65(6):6-8.
[3] 邱景平,辛国帅,张国联,等.小官庄铁矿上向进路充填采矿方法试验研究[J].金属矿山,2013(8):5-7.
[4] 赵永,杨天鸿,王薪荣,等.基于Mathews稳定图法的采空区稳定性评价[J].东北大学学报(自然科学版),2016,37(1):74-78.
[5] 陈灿.上向进路充填采矿法采场结构参数优化研究[J].湖南有色金属,2014,30(5):7-10.
[6] 周高明,李克钢,玉拾昭,等.毛坪铅锌矿下向分层进路胶结充填采场结构参数优化[J].金属矿山,2015(1):39-42.
[7] 玉拾昭,高安森,李炜强,等.基于FLAC3D的毛坪矿采场结构参数优化[J].现代矿业,2017(5):115-117.
[8] 王金波,周靖人,赵永,等.采场稳定性分析与参数优化的图表法[J].金属矿山,2016(5):187-191.
[9] 赵兴东,刘杰,张洪训,等.基于摄影测量的岩体结构面数字识别及采场稳定性分级[J].采矿与安全工程学报,2014,31(1):127-133.
[10] 许宏亮,刘召胜,石露,等.用Mathews稳定图法与数值分析法优化充填开采矿山采场结构参数[J].金属矿山,2015(12):19-23.
[11] 王炳文,徐鹏,张浩,等.九仗沟金矿采场岩体稳定性分析及参数优化[J].矿业科学学报,2018,3(6):561-567.
[12] 罗淦华,吴爱祥.基于Mathews稳定图法的采场结构参数确定[J].金属矿山,2017(2):31-35.
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