Method for calculating thickness of loosening circle of tunnel surrounding rock

The invention relates to a method for calculating the thickness of a loosening circle of a tunnel surrounding rock. By the introduction of the concept of a broken rock integrity coefficient Rv and a loosening circle integrity coefficient Lv, the broken state of rock mass in a loosening circle of the...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	DENG XIANGHUI, ZHAO BANGXUAN, ZHANG JINZENG, WANG RUI, YUAN DONGYANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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