In Situ Strain Measurement around Shaft in Sedimentary Rock and its Numerical Analysis

Autor:	Makoto Maruyama, Hisaya Yoshioka, Hideo Kinashi, Kozo Sugihara, Koji Hata
Rok vydání:	1993
Předmět:	In situ Materials science Strain (chemistry) Mechanical Engineering Numerical analysis Strain measurement Borehole Excavation Condensed Matter Physics Finite element method Mechanics of Materials General Materials Science Geotechnical engineering Sedimentary rock
Zdroj:	Journal of the Society of Materials Science, Japan. 42:324-328
ISSN:	1880-7488 0514-5163
DOI:	10.2472/jsms.42.324
Popis:	The main purpose of this study is to make clear the variation of strain induced by the excavation of a shaft with a diameter of 6m and a depth of 150m. Variation of strain around the shaft was measured using 8-element borehole guages embeded before excavation, and a numerical analysis was conducted for comparison with the results of in situ strain measurement.The following conclusions were obtained:(1) Strain variation around shaft is induced by the extraction force acting on the wall of the opening.(2) Variation of strain in sedimentary rock with wide to moderately spaced joints can be simulated by the FEM analysis using an elastic model.
Databáze:	OpenAIRE
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