back and fill
2.With the mining of No.1 Ore body which is solwly inclined,large and thick at the west flank of xinqiao pyrite Mine as the example,analytic comparision is made between flat-back cut and fill stoping and sublevel open stoping with one-time delayed filling.The suggestion on the optimization of the mining and the discussion on appropraite mining method and the technical parameters of mining technology for slowly inclined large and thick ore body are also made.
3.it introduces water-proofing design’s main point from four aspects——draining of basement, profile in plan, back fill and deformation joint, elaborates the water-proofing construction methods of continuous wall and underground drinking-water pool, discusses the quality checking methods of underground water-proof project, so as to ensure the quality of basement project.
5.Can buy in the bank, no matter be bank bar or the business that the bank on the net can have fund, the fund of be commissioned to sell sth of the bank that enrol business is the totallest, rate of cost of the bank on the net of traffic bank is best (4 fold) , make the team queueing up of the bank seniorer and seniorer as a result of the hot circumstance of fund of bank be commissioned to sell sth and fund in fact, the bank can go if you want to buy fund on the net, register your one cartoon for the bank on the net card and fund get stuck (fill two pieces of watches to debutted to go) , go in Qian Fang, come back to nod bit of mouse to complete the transaction of fund, the bank on the net and fund company website are sold continuously is two kinds of the most commonly used means.
