Staged water-filled goaf filling method

The invention provides a staged water-filled goaf filling method. The method comprises the following steps of firstly, drilling to an Nth-order water-filled goaf, then arranging a filling device of the water-filled goaf, filling the water-filled goaf, taking out the filling device after slurry of th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JIAO XIANGDONG, MENG QINGBIN, YANG ZHANBIAO, LI MINGPENG, MAO DONGGUI, ZHANG JIANGUO, ZHOU YUEJIN, ZHENG LIHUI, LIU CHUNWANG, ZHAO WANLI, GUO JIANWEI, SONG YONGHUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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Beschreibung
Zusammenfassung:	The invention provides a staged water-filled goaf filling method. The method comprises the following steps of firstly, drilling to an Nth-order water-filled goaf, then arranging a filling device of the water-filled goaf, filling the water-filled goaf, taking out the filling device after slurry of the Nth-order water-filled goaf is hardened, and continuously drilling to an (N+1)th-order water-filled goaf along the holes, and then repeating the filling steps. According to the method, all stages of water-filled goaf are filled in sequence from top to bottom in a staged mode, after filling of theNth-order of water-filled goaf is completed, the filling device of the water-filled goaf only needs to extend to the (N+1)th-order of water-filled goaf along the drilled holes of the Nth-order of water-filled goaf to repeat the filling steps; and due to the fact that staged filling from top to bottom is adopted, the fluidity of the slurry A and the slurry B is improved under the action of high-pressure gas, filling is uni