Roof cutting and pressure releasing method for double-filling wall structure in gob-side entry retaining

The invention discloses a roof cutting and pressure releasing method for a double-filling wall structure in gob-side entry retaining. According to the method, a high-water material is used to construct a first high-water material filling wall on the upper section stoping working face along the edge...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	HUANG XIAOPENG, HAO BINGYUAN, LIU ZHONGXI, ZHANG PENGPENG, QIAN HANFEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AMMUNITION ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES HEATING LARGE UNDERGROUND CHAMBERS LIGHTING LIME, MAGNESIA MECHANICAL ENGINEERING METALLURGY MINING REFRACTORIES SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SHAFTS SLAG TREATMENT OF NATURAL STONE TUNNELS WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Schreiben Sie den ersten Kommentar!