Long-drill-hole multi-cycle positioning gas pressure measuring device and method

The invention discloses a long-drill-hole multi-cycle positioning gas pressure measuring device and method, the long-drill-hole multi-cycle positioning gas pressure measuring device is used, the steps of device installation, grouting, pressure measurement, slurry discharge and pressure relief, cycli...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LI YANZENG, XUE SHIPENG, GAO ZHONGNING, ZHAO XIN, WANG KAIWANG, QIAN ZHILIANG, XU CHENG, CAO YAOLIN, TANG HUI, REN ZHONGJIU, CHENG SHIYI, ZHOU RUI, ZHENG ZHONGYU, XU JIANGTAO, GAO HONG, HAN BING, XU XINGFU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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