申論題內容
二、在選擇適當之開採方法時必須考慮到下列 6 項因素:
⑴礦脈空間特性(spatial characteristics of deposit)
⑵地質及水文狀況(geology and hydrology conditions)
⑶土壤及岩石力學特性(soil and rock mechanics properties)
⑷經濟考量(economic considerations)
⑸技術因素(technological factors)
⑹環境考量(environmental considerations)
請詳述上列⑵及⑷所要考慮的內容為何?(20 分)