基于响应曲面的采场结构参数优化方法与敏感性分析  

Optimization Method and Sensitivity Analysis of Stope Structure Parameters Based on Response Surface

作　　者：甘德清 孟岐 刘志义 路燕泽 GAN Deqing;MENG Qi;LIU Zhiyi;LU Yanze(College of Mining Engineering,North China University of Science and Technology,Tangshan,Hebei 063210,China;Collaborative Innovation Center of Green Development and Ecological Restoration of Mineral Resources,North China University of Science and Technology,Tangshan,Hebei 063210,China;:3.Green Intelligent Mining Technology Innovation Center of Hebei Province,North China University of Science and Technology,Tangshan,Hebei 063210,China;Hebei Province Key Laboratory of Mining Development and Security Technology,North China University of Science and Technology,Tangshan,Hebei 063210,China;Shahe Zhongguan Iron Mine Co.,Ltd.,Hebei Iron and Steel Group,Xingtai,Hebei 054100,China)

机构地区：[1]华北理工大学矿业工程学院,河北唐山市063210 [2]华北理工大学矿产资源绿色开发与生态修复协同创新中心,河北唐山市063210 [3]华北理工大学河北省矿山绿色智能开采技术创新中心,河北唐山市063210 [4]华北理工大学河北省矿业开发与安全技术实验室,河北唐山市063210 [5]河北钢铁集团沙河中关铁矿有限公司,河北邢台市054100

出　　处：《矿业研究与开发》2025年第3期31-40,共10页Mining Research and Development

基　　金：国家自然科学基金资助项目(52204134);河北省中央引导地方科技专项项目(236Z4105G);河北省自然科学基金资助项目(E2021209127)。

摘　　要：为解决采场结构参数取值不合理导致的顶板失稳或生产能力不足等难题,以河北省某矿为背景,对采场结构参数进行优化,并对其参数敏感性进行了分析。首先,进行岩体质量调查,并采用具有稳定概率的拓展Mathews稳定图法初步确定了采场的宽度和长度区间。然后,利用FLAC3D数值模拟探究了采场顶板最大沉降量随结构参数变化的变形规律,结合响应面法构建了采场顶板沉降量预测模型,探明了影响采场顶板沉降的自身因素敏感性及其交互作用关系。最后,综合考虑生产安全与矿块大小,对采场进行了采场结构参数优化,并进行工业试验验证结果合理性。结果表明:该矿岩体整体评级为Ⅴ级,岩体质量很差;采场顶板沉降量对各参数敏感程度从高到低依次为采场宽度、采场长度、采场高度;该矿体最佳采场结构参数为宽12 m、长36 m、高60 m,采用该结构参数进行回采,采空区轮廓较为平整,能够保持稳定。研究结果可为选取合理的采场结构参数、正确协调采场安全与生产能力提供理论依据。To solve the problem of roof instability or insufficient production capacity caused by unreasonable values of stope structure parameters,an iron ore mine in Hebei Province was selected as the background to optimize the stope structure parameters and analyze their sensitivity.Firstly,a rock mass quality investigation was conducted and the extended Mathews stability chart method with stable probability was used to preliminarily determine the width and length range of the stope.Then,FLAC3D numerical simulation was used to explore the deformation law of the maximum displacement of the stope roof with the variation of structure parameters.Combined with response surface method,a prediction model for the displacement of the stope roof was constructed,and the sensitivity of the single factor affecting the displacement of the stope roof and their interaction relationship were explored.Finally,considering safety and block size,the stope structure parameters were optimized,and industrial experiments were conducted to verify the rationality of the results.The results indicate that the overall rating of the ore body is gradeⅤ,and the rock mass quality is very poor.The sensitivity of the roof displacement of the stope to various parameters,from high to low,is as follows:stope width,stope length,and stope height.The optimal stope structure parameters for this ore body are a width of 12 m,a length of 36 m,and a height of 60 m.When using the structure parameters for recovery,the contour of the goaf is relatively flat and stable.The research results can provide theoretical basis for selecting reasonable stope structure parameters and correctly coordinating stope safety and production capacity.

关 键 词：采场结构参数 敏感性分析 响应面法 Mathews稳定图法 数值模拟 

分 类 号：TD325[矿业工程—矿井建设] TD852