Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a downward access road filling mining method which comprises the following steps: dividing a mining area into interval filling layers and complete filling layers alternately distributed in the vertical direction, adopting the downward access road layer-by-layer mining method, and alternately filling a high-strength quick setting filling material and a low-strength quick setting filling material in goafs of the interval filling layers and the complete filling layers, wherein the high-strength quick setting filling material is made of cement clinker, whole tailings, wasterock and an accelerator, and the low-strength quick setting filling material is made of cement, active slag, tailings and an accelerator, so that an upper-layer filling body is jointly supported by alower-layer high-strength filling body and a low-strength filling body to prevent the upper-layer filling body from collapse, the using quantity of cement in mining safe filling material is ensured,and the filling cost is reduced; and in addition, a small quantity of accelerator is added in the filling material to greatly shorten the time waiting for the filling material to reach the preset strength, so that the stoping time is shortened to greatly improve the mining efficiency.
本发明公开了一种下向进路充填采矿方法，通过将开采区域从竖直方向上划分为交替分布的间隔充填层和完全充填层，并采用下向进路逐层开采方法，同时将由水泥熟料、全尾砂、废石、速凝剂制成的高强速凝充填材料和由水泥、活性矿渣、尾矿、速凝剂制成的低强速凝充填材料交替充填于间隔充填层和完全充填层的采空区中，从而使上层充填体受到下层高强充填体和低强充填体的共同支撑，防止上层充填体坍塌，保障采矿安全；同时还能够有效减少充填材料中水泥的使用量，降低充填成本，并通过在充填材料中添加少量的速凝剂可大大缩短等待充填材料达到预设强度所需的时间，以缩短回采时间，从而大大提高开采效率。
The invention discloses a downward access road filling mining method which comprises the following steps: dividing a mining area into interval filling layers and complete filling layers alternately distributed in the vertical direction, adopting the downward access road layer-by-layer mining method, and alternately filling a high-strength quick setting filling material and a low-strength quick setting filling material in goafs of the interval filling layers and the complete filling layers, wherein the high-strength quick setting filling material is made of cement clinker, whole tailings, wasterock and an accelerator, and the low-strength quick setting filling material is made of cement, active slag, tailings and an accelerator, so that an upper-layer filling body is jointly supported by alower-layer high-strength filling body and a low-strength filling body to prevent the upper-layer filling body from collapse, the using quantity of cement in mining safe filling material is ensured,and the filling cost is reduced; and in addition, a small quantity of accelerator is added in the filling material to greatly shorten the time waiting for the filling material to reach the preset strength, so that the stoping time is shortened to greatly improve the mining efficiency.
本发明公开了一种下向进路充填采矿方法，通过将开采区域从竖直方向上划分为交替分布的间隔充填层和完全充填层，并采用下向进路逐层开采方法，同时将由水泥熟料、全尾砂、废石、速凝剂制成的高强速凝充填材料和由水泥、活性矿渣、尾矿、速凝剂制成的低强速凝充填材料交替充填于间隔充填层和完全充填层的采空区中，从而使上层充填体受到下层高强充填体和低强充填体的共同支撑，防止上层充填体坍塌，保障采矿安全；同时还能够有效减少充填材料中水泥的使用量，降低充填成本，并通过在充填材料中添加少量的速凝剂可大大缩短等待充填材料达到预设强度所需的时间，以缩短回采时间，从而大大提高开采效率。
Downward access road filling mining method
一种下向进路充填采矿方法
08.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E21C
Bergbau oder Steinbruchbetrieb
,
MINING OR QUARRYING
/
C04B
Kalk
,
LIME
/
E21F
Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels
,
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
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