CAJ | 학술논문

基于D值理论，考虑矿山工程实际情况，引入微震事件概率因子、监测区域重要性因子和台网布设可行性因子重新构建了台网优化目标函数.以某磷矿顶板突水的微震监测为例，对全矿区按照监测区域重要性、台网布设可行性等因素进行分区，采用专家权重法分别给出了相关因子的参考值.按照影响因子取值差异将整个监测区域再次分区，给出了分区后目标函数的积分形式，其中各监测区域控制点坐标即为相应的积分上下限.基于文中提出的微震监测网络的动态优化设计原则，最终给出了该磷矿微震监测台网布设方案.爆破试验表明，本文提出的台网布设方案具有一定的合理性和准确性，三个坐标方向的平均定位误差为6.74 m，最大为10.05 m，空间定位误差为12.51 m，定位精度可满足工程监测需要.
기우D치이론，고필광산공정실제정황，인입미진사건개솔인자、감측구역중요성인자화태망포설가행성인자중신구건료태망우화목표함수.이모린광정판돌수적미진감측위례，대전광구안조감측구역중요성、태망포설가행성등인소진행분구，채용전가권중법분별급출료상관인자적삼고치.안조영향인자취치차이장정개감측구역재차분구，급출료분구후목표함수적적분형식，기중각감측구역공제점좌표즉위상응적적분상하한.기우문중제출적미진감측망락적동태우화설계원칙，최종급출료해린광미진감측태망포설방안.폭파시험표명，본문제출적태망포설방안구유일정적합이성화준학성，삼개좌표방향적평균정위오차위6.74 m，최대위10.05 m，공간정위오차위12.51 m，정위정도가만족공정감측수요.
Considering the actual situation of mines, the microseismic event probability factor, the monitoring area importance factor and the network layout feasibility factor were introduced to rebuild the objective function of monitoring network optimization based on the theory of D-optimal design. Taking microseismic monitoring in a phosphate ore for example, the mining area was zoned according to the importance of the monitoring area, the feasibility of the network layout, etc., and then the reference values of relevant factors were given by the expert investigation weight method. The monitoring region was rezoned according to the differences of these influence factors, and the integral form of the objective function was given with the control point coordinates of the monitoring region as the corresponding range of integration. The dynamic optimization design principles of microseismic monitoring were proposed, and the optimal plan of a microseismic monitoring network in this phosphate ore was established finally based on the above study. Field blasting test shows that the monitoring network is rational and valid to a certain degree, the average error of the three coordinate directions is 6.74 m, the maximum error is 10.05 m, and the spatial positioning error is 12.51 m. This positioning accuracy can satisfy the field engineering demand.