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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.69 No.1
- 발행연도
- 2019.1
- 수록면
- 43 - 50 (8page)
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초록· 키워드
오류제보하기
In this research, the effect of bedding layer on the tensile failure mechanism of rocks has been investigated using PFC2D. For this purpose, firstly calibration of PFC2d was performed using Brazilian tensile strength. Secondly Brazilian test was performed on the bedding layer. Thickness of layers were 5 mm, 10 mm and 20 mm. in each thickness layer, layer angles changes from 0° to 90° with increment of 15°. Totally, 21 model were simulated and tested by loading rate of 0.016 mm/s. The results show that when layer angle is less than 15, tensile cracks initiates between the layers and propagate till coalesce with model boundary. Its trace is too high. With increasing the layer angle, less layer mobilizes in failure process. Also, the failure trace is very short. It’s to be noted that number of cracks decrease with increasing the layer thickness. Also, Brazilian tensile strength is minimum when bedding layer angle is between 45° and 75°. The maximum one is related to layer angle of 90°.
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참고문헌 (71)
참고문헌 신청
Al-Harthi, A. A. / 1998 / Effect of planar structures on the anisotropy of ranyah sandstone Saudi Arabia / Eng. Geol. 50(1-2):49~57
Amadei B, Rogers, J. D. / 1983 / Elastic constants and tensile strength of anisotropic rocks / Proceedings of the 5th International Congress of Rock Mechanics :A189~A196
Amadei B. / 1996 / Importance of anisotropy when estimating and measuring in situ stresses in rock / Int. J. Rock Mech. Min. Sci. Geomech. Abstr 33(3):293~325
Amadei, B. / 1982 / The influence of rock anisotropy on measurement of stresses in-situ
Barla, G. / 1974 / Rock anisotropy: Theory and laboratory testing / Rock Mech :131~169
Amadei B, Rogers, J. D. / 1983 / Elastic constants and tensile strength of anisotropic rocks / Proceedings of the 5th International Congress of Rock Mechanics :A189~A196
Amadei B. / 1996 / Importance of anisotropy when estimating and measuring in situ stresses in rock / Int. J. Rock Mech. Min. Sci. Geomech. Abstr 33(3):293~325
Amadei, B. / 1982 / The influence of rock anisotropy on measurement of stresses in-situ
Barla, G. / 1974 / Rock anisotropy: Theory and laboratory testing / Rock Mech :131~169
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