摘要
为了高效、科学、经济地对采场顶板运动趋势以及变化情况进行有效分析,掌握其活动规律,借鉴工业生产中"计划-实施-检查-处置"(PDCA)的循环管控思想,研发了基于PDCA循环理念的大采高工作面矿压规律自动分析与仿真系统,系统可根据工作面实测矿压数据实现对采场上覆岩层力学参数的反演与修订。系统首先在工作面开采前依据模型中挠曲算法或步距算法判断传递岩梁支托层与随动层,并对相关采场覆岩运动参数进行理论预测;其次在开采中对液压支架阻力实测数据进行在线分析,提炼出顶板运动参数;最后通过反演修订采场顶板关键岩层的力学参数,使系统预测与现场实测分析结果误差逐步降低,并为采场其他相关参数的计算提供基础数据。系统在营盘壕煤矿2201工作面的应用结果表明:模型对工作面传递岩梁初次来压步距与周期来压步距等几个关键参数的计算精度得到了验证,系统仿真数据与现场实测数据的误差不断缩小,实现了对现场矿山压力显现规律进行定量分析。该研究思路对矿压显现观测理论计算与现场实测提供了融合途径。
In order to efficiently,scientifically and economically analyze the movement law of stope roof,effectively analyze the movement trend and change situation of stope roof,and master its activity law,this paper used the idea of“plan-implement-inspect-dispose”(PDCA)cycle management and control in industrial production for reference,and developed a set of automatic analysis and simulation system of ground pressure law of large mining height working face based on PDCA cycle concept.The mechanical parameters of overlying strata in the stope can be inversed and revised based on the measured ground pressure data.Firstly,the system determines the transfer rock beam supporting layer and follow-up layer according to the deflection algorithm or step algorithm in the practical ground pressure the⁃ory before mining,and calculates the related stope overburden movement parameters theoretically;secondly,it carries out on-line analysis on the measured data of hydraulic support resistance during mining,and extracts the roof movement parameters.Finally,by in⁃verse the mechanical parameters of the key rock formation of the recovery of the roof,the system prediction and the field measurement a⁃nalysis result error is gradually decreasing,and basic data is provided for the calculation of other related parameters.The application re⁃sults of the system in the working surface of the Yingpanhao Coal Mine No.2201 working face show that the model is verified for the calcu⁃lation accuracy of several key parameters such as the initial direction of the work surface transfer rock beam,and the system simulation da⁃ta and the on-site measured data..The error between the system simulation data and the field measured data is continuously reduced,and the system accuracy is continuously improved,which achieves the quantitative analysis of the field ground pressure behavior law.The re⁃search idea provides a fusion approach for theoretical calculation and field measurement of ground pressure observation.
作者
王超
谢佳玉
徐放艳
孔超
WANG Chao;XIE Jiayu;XU Fangyan;KONG Chao(Yanzhou Coal Industry Co.,Ltd.,Zoucheng 273500,China;College of Energy and Mining Engineering,Shandong University of Science and Technology,Qingdao 266590,China;Shandong Cicoside Mining Safety Engineering Co.,Ltd.,Taian 271000,China;Shandong Aituo Software Development Co.,Ltd.,Taian 271000,China)
出处
《煤炭科学技术》
CAS
CSCD
北大核心
2021年第4期186-192,共7页
Coal Science and Technology
基金
国家自然科学基金资助项目(51574055)。
关键词
矿压分析
覆岩运动模拟
预测与预报
PDCA循环
mining pressure analysis
overburden movement simulation
prediction and forecast
PDCA cycle