Position optimization of trench bottom structure based on the main object method
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摘要: 以西石門鐵礦塹溝底部結構誘導冒落法開采邊角殘留礦體為背景,對塹溝回采礦石量、金屬量、品位等指標進行計算,建立了以采出金屬量和采出品位為目標的多目標最優化數學模型.結合殘礦開采實際情況,選擇采出金屬量作為最優化問題的主要目標.利用TCL腳本語言對SURPAC軟件進行二次開發,并應用其對最優化問題約束條件下塹溝底部結構空間位置的可行方案進行全因子實驗.最后得出采切工程布置的最優方案為:塹溝底部結構位于103.1 m水平,與礦體間距為18.65 m.較原設計方案,最優方案采出金屬量提高27.79%.Abstract: This article aims at caving corner residual orebody by trench bottom structure in Xishimen Iron Mine. SURPAC software was used to calculate the ore volume,amount of metal and grade. A mathematical model of multi-objective optimization was established to maximize the amount of metal and grade. According to the special situation of corner residual orebody mining,the amount of metal was selected to be the main object. SURPAC software was developed to automatically calculate by using TCL script. With the help of the script software,all factors in the constraint were tested. The optimum position of trench bottom structure was obtained,which is on the 103.1 m level and 18.65 m to the orebody. Compared with the original design,the amount of metal is increased by 27.79% after this optimal design.
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Key words:
- iron mines /
- mining /
- trench excavation /
- optimization models /
- stoping
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