METHOD FOR EVALUATING STABILITY OF TUNNEL SURROUNDING ROCK CONSIDERING CREEP CHARACTERISTICS OF STRUCTURAL PLANE

The application provides a method for evaluating stability of a tunnel surrounding rock considering creep characteristics of a structural plane, which includes the following steps: S1, discretizing a tunnel surrounding rock region, and constructing a numerical model of a tunnel-surrounding rock stru...

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Bibliographische Detailangaben
Hauptverfasser:	ZOU, Junpeng, ZHANG, Guohua, TANG, Zhicheng, HUA, Dongjie, WANG, Jinchao, XIONG, Feng, CHEN, Zongwu
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING DETECTING MASSES OR OBJECTS EARTH DRILLING ELECTRIC DIGITAL DATA PROCESSING FIXED CONSTRUCTIONS GALLERIES GEOPHYSICS GRAVITATIONAL MEASUREMENTS LARGE UNDERGROUND CHAMBERS MEASURING MINING PHYSICS SHAFTS TESTING TUNNELS
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Beschreibung
Zusammenfassung:	The application provides a method for evaluating stability of a tunnel surrounding rock considering creep characteristics of a structural plane, which includes the following steps: S1, discretizing a tunnel surrounding rock region, and constructing a numerical model of a tunnel-surrounding rock structure; S2, initializing the numerical model; S3, presetting a creep time, and obtaining a normal force of a structural plane node based on an initialized numerical model; S4, based on the normal force, obtaining an unbalanced force of a rock mass region element; and S5, judging the unbalanced force of the rock mass region element, and completing a stability evaluation of the tunnel surrounding rock.