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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 鄭富書 | |
dc.contributor.author | Yao-Rong Chen | en |
dc.contributor.author | 陳耀榮 | zh_TW |
dc.date.accessioned | 2021-06-15T00:32:35Z | - |
dc.date.available | 2013-08-16 | |
dc.date.copyright | 2011-08-16 | |
dc.date.issued | 2011 | |
dc.date.submitted | 2011-08-15 | |
dc.identifier.citation | 1. Atkinson, B. K., “Fracture mechanics of rock,” Academic, London, 1987.
2. Atkinson, C., Combined mode fracture via the cracked Brazilian disk test. International Journal of Fracture, 1982. 18(4): p. 279-291. 3. Awaji, H., Sato, S., Combined mode fracture toughness measurement by the disk test. Journal of Engineering Materials and Technology, 1978. 100: p. 175-182. 4. Bieniawski, Z.T., Bernede, M. J., Suggested methods for determining the uniaxial compressive strength and deformability of rock materials. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1978. 16(2): p. 137-140. 5. Bobet, A., H. H. Einstein, Fracture coalescence in rock-type materials under uniaxial and biaxial compression. International Journal of Rock Mechanics and Mining Sciences, 1998. 35(7): p. 863-888. 6. Cai, M., Kaiser, P.K., Numerical simulation of the brazilian test and the tensile strength of aniostropic rocks and rocks with pre-existing cracks. International Journal of Rock Mechanics and Mining Sciences, 2004. 41(3): p. 478-483. 7. Griffith, A.A., The phenomena of rupture and flow in solid. Philosophical Transactions of the Royal Society of London, 1920. 221: p. 163-198. 8. Hoek, E., Bieniawski, Z. T., Brittle fracture propagation in rock under compression. International Journal of Fracture, 1965. 1(3): p. 137-155. 9. Hsieh, Y.M., Li, H. H., Huang, T.H, Jeng, F. S., Interpretations on how the macroscopic mechanical behavior of sandstone affected by microscopic properties—Revealed by bonded-particle model. Engineering Geology, 2008. 99(1-2): p. 1-10. 10. Imber, J.T., G. W., Childs, C., Walsh, J.J., Manzocchi, T., Heath, A.E., Bonson, C.G., Strand, J., Three-dimensional distinct element modelling of relay growth and breaching along normal faults. Journal of Structural Geology, 2004. 26(10): p. 1897-1911. 11. Irwin, G., Analysis of stresses and strains near the end of a crak traversing a plate. Journal of Applied Mechanics, 1957. 24: p. 361-364. 12. Irwin, G.R., Fracture. Handbuch der Physik. 1958, New York 13. Itasca Consulting Group inc., 2002. PFC2D version 3.0. Minneapolis, MN: ICG. 14. Kemeny, J., Time-dependent drift degradation due to the progressive failure of rock bridges along discontinuities. International Journal of Rock Mechanics and Mining Sciences, 2005. 42(1): p. 35-46. 15. Kulatilake, P.H.S.W., Malama, B., Wang, J., Physical and particle flow modeling of jointed rock block behavior under uniaxial loading. International Journal of Rock Mechanics and Mining Sciences, 2001. 38(5): p. 641-657. 16. Lajtai, E.Z., A theoretical and experimental evaluation of the Griffith theory of brittle fracture. Tectonophysics, 1971. 11: p. 129-156. 17. Lajtai, E.Z., Microscopic fracture processes in a granite. Rock Mechanics and Rock Engineering, 1998. 31(4): p. 237-250. 18. Lajtai, E.Z., Brittle fracture in compression. International Journal of Fracture, 1974. 10(4): p. 525-536. 19. Moon, T., Nakagawa, M., Berger, J., Calculation of fracture toughtness by using discrete element method, 7th ASCE Engineering Mechanics Conference. 2004: University of Delaware Newark, De. 20. Moon, T.N., M., Berger, J., Measurement of fracture toughness using the distinct element method. International Journal of Rock Mechanics and Mining Sciences, 2007. 44(3): p. 449-456. 21. Ouchterlony, F., Suggested methods for determining the fracture toughness of rock. International Journal of Rock Mechanics and Mining Sciences, 1988. 25(2): p. 71-96. 22. Park, C.H., Bobet, A., Crack coalescence in specimens with open and closed flaws: A comparison. International Journal of Rock Mechanics and Mining Sciences, 2009. 46:p. 819-829. 23. Potyondy D.O., C.P.A., A bonded-particle model for rock. International Journal of Rock Mechanics and Mining Sciences, 2004. 41(8): p. 1329-1364. 24. Reyes, O.M., Experimental study and analytical modelling of compressive fracture in brittle materials, Ph.D. Dissertation, Department of Civil Engineering. 1991, Massachusetts Institute of Technology: Boston. 25. Sih, G.G., Handbook of stress-intensity factors. 1973. 26. Ueda, Y., Ikeda, K., Yao, T., Aoki, M., Yoshie, T., Shirakura T., Brittle Fracture Initiation Characteristics Under Biaxial Loading. Fracture, 1977. 2(6). p. 173-182. 27. Vesga, L.F., Vallejo, L. E., Lobo-Guerrero, S., DEM analysis of the crack propagation in brittle clays under uniaxial compression tests. Mechanics of Cohesive-frictional Materials. 32(11): p. 1405-1415. 28. Wang, Y.C., Yin, X.C., Ke, F.J., Xia, M.F., Peng, K.Y., Numerical simulation of rock failure and earthquake process on mesoscopic scale. Pure and Applied Geophysics, 2000. 157(11): p. 1905-1928. 29. Westergraard, H.M., Bearing Pressure and Cracks. Journal of Applied Mechanics, 1939. 6: p. A49-A53. 30. Wong, R.H.C., Tang, C.A., Chau, K.T., Lin, P., Splitting failure in brittle rocks containing pre-existing flaws under uniaxial compression. Engineering Fracture Mechanics, 2002. 69: p.1853~1871. 31. 鄭富書、陳正旺(2007):含裂縫岩石受壓引致破裂延伸之數值分析研究,第四屆海峽兩岸結構與岩土工程學術研討會論文集,杭州,第1060-1066頁。. 32. 蔡亦強(1994):岩石含雁行排列節理的破裂行為之模型研究,國立台灣大學土木工程學研究所碩士論文。 33. 林鴻州(2001):模擬岩石裂面型態及機制初探,國立台灣大學土木工程學研究所碩士論文。 34. 李宏輝(2008):砂岩力學行為之微觀機制:以個別元素法探討,國立台灣大學土木工程學研究所博士論文。 35. 應傳智(1995):人工軟弱岩石之研究,國立台灣大學土木工程學研究所碩士論文。 36. 黃百懃(2010):應用個別元素法探討人造岩石裂隙延伸行為,國立台灣大學土木工程學研究所博士論文。 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/41809 | - |
dc.description.abstract | 自二戰以後,裂隙力學的發展漸趨完整。在岩石工程的領域上,裂隙的存在對岩體的強度有著重要的影響性,因此裂隙的延伸發展為研究材料破裂行為之重要課題。當岩石材料受外力作用引致破壞之破壞機制非由岩體的材料強度控制,而是由於岩體本身所含既有裂隙存在應力集中現象,導致岩體由既有裂隙延伸破壞,其破壞強度及破壞行為將迥異於完整岩塊的破壞行為。不同的破壞行為,在工程上無法以岩石力學來做分析、設計。以地質構造角度來看,台灣位於造山運動劇烈之板塊交接帶,由於菲律賓海板塊不斷的推擠歐亞大陸板塊,使得台灣本島的斷層密集,在板塊推擠持續作用下,斷層受力再錯動時,將順著原有的斷層線繼續發展延伸。有鑑於此,如能了解並預測岩體在不同的應力態條件下既有裂隙如何發展與延伸在邊坡維護及地震相關之防災課題將有直接之助益。
然而岩石試體取得不易加上實驗儀器之限制,無法透過實驗室的力學實驗探求岩體的破壞行為。隨著計算機硬體運算能力的提升,以數值分析輔助研究已成為一趨勢,以往廣泛被使用之連續體分析方法在諸多研究領域皆受到重用。然而連續體分析方法在破裂模擬應用上有其限制,在材料受力後之大變形及裂隙發展延伸模擬,個別元素法(Distinct Element Method, DEM)能得到更好之結果。 本研究將先就實驗室力學試驗所得結果對數值模型做驗證,確認參數而後進行雙軸應力狀態下含預裂隙人造岩石之裂隙延伸行為的數值模擬。結果顯示,側向壓力對於裂隙延伸行為有顯著的影響。以較高圍壓狀況而言,試體單預裂隙破壞延伸行為與低圍壓狀態的預延伸行為截然不同,預裂隙發展將由垂直預裂隙方向向外延伸。雙預裂隙情況下,圍壓與預裂隙幾何配置均會影響裂隙連通現象,個別預裂隙之延伸行為會接近受同樣圍壓條件之試體,雙預裂隙之距離達到一定程度後,兩裂隙在不同圍壓之行為大不相同。 | zh_TW |
dc.description.abstract | Since World War II, the development of fracture mechanics is becoming complete. In the rock engineering field, fracture plays an important role on rock strength, so crack propagation is a big issue for studying fracture behavior of material. When the rock material damage is caused not by material strength but stress concentration of the pre-exist cracks, it becomes different from intact rock on failure strength and failure behavior, so rock mechanics can not help us do the analysis, design on engineering.
On the side of geology, due to the strong orogeny, the rock mass in Taiwan is plenty of discontinuities. The discontinuities, which are perceived as the pre-existing cracks in rock mass, can affect the strength of the rock mass. In view of this, it is benefit to know the pattern of fracture propagation behaviors of artificial rocks with pre-existing cracks under biaxial loading for earthquake disaster prevention. This study was based on numerical analysis of data collected from laboratory test. The numerical simulation is executed by the distinct element method (DEM) based software, Particle Flow Code 2D. In order to acquire the parameters for PFC2D simulating and verification the PFC2D results, this study refers to data of artificial rocks are made to apply the uni-axial compression test, the Brazilian disk test and the Central through Cracked Brazilian Disc test(Huang, 2010). According to the simulation results, the lateral stress caused a great influence on fracture propagation behaviors. Behavior of specimen with single pre-exist crack is different between high and low confining pressure. The fracture propagation behavior was not obvious under higher lateral stress level. The broken area was concentrated near the pre-exist cracks and formed broad fracture lines. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T00:32:35Z (GMT). No. of bitstreams: 1 ntu-100-R98521119-1.pdf: 31458485 bytes, checksum: 5899d5bf2b055ce2141130110cda6e0a (MD5) Previous issue date: 2011 | en |
dc.description.tableofcontents | 誌謝 I
摘要 II Abstract III 符號表 V 目錄 VII 表目錄 X 圖目錄 XI 第一章 緒論 1 1.1 研究動機 1 1.2 研究目的 2 1.3 研究方法 2 第二章 文獻回顧 5 2.1 岩石破裂力學 5 2.1.1 應力強度因子與破裂韌度 5 2.1.2 岩石材料破裂行為 6 2.2 數值分析工具 8 2.2.1 分離元素法軟體-PFC 8 2.2.2 微觀參數之影響及選取探討 9 2.3 人造岩石力學實驗 10 2.3.1 人造岩石材料選取 10 2.3.2 實驗方法與設備 10 2.3.3 實驗成果 11 第三章 數值模型建立 20 3.1 單、雙軸應力狀態數值模擬模型建立 20 3.1.1 試體生成步驟 20 3.1.2 裂隙形狀的影響 22 3.1.3 壓力之施作方法 23 3.1.4 參數設定 24 3.1.5 數值模型結果與物理模型比對驗證 24 3.2 組態對數值模擬結果之影響 27 3.3 人造岩石試體之破壞包絡線 28 3.4 綜合討論 29 第四章 單、雙軸應力下單裂隙延伸破壞分析 40 4.1 試體大小對預裂隙延伸行為之影響 40 4.1.1 試體寬54 mm ×長90 mm 40 4.1.2 試體寬54 mm ×長107 mm 40 4.1.3 試體寬54 mm ×長140 mm 41 4.1.4 試體寬54 mm ×長140 mm(強度提高九倍試體) 41 4.1.5 試體尺寸小結 41 4.2 單軸壓力下預裂隙角度對預裂隙延伸行為之影響 42 4.2.1 0度預裂隙斷鍵行為 42 4.2.2 45度預裂隙斷鍵行為 42 4.2.3 90度預裂隙斷鍵行為 43 4.2.4 小結 43 4.3 單軸壓力下含單一預裂隙試體剪力破壞、張壓力破壞位置分析 43 4.3.1 小結 44 4.4 圍壓對45度預裂隙之影響 45 4.4.1 圍壓3 MPa情形 45 4.4.2 圍壓5MPa情形 45 4.4.3 以ABAQUS分析圍壓5 MPa之應力分布情形 46 4.4.4 ABAQUS結果分析 46 4.5 小結 47 第五章 單、雙軸應力下雙裂隙延伸破壞分析 62 5.1 裂隙幾何關係對兩裂隙交互影響關係 62 5.1.1 預裂隙內側尖端在同一垂直線 62 5.1.2 預裂隙內側尖端不在同一垂直線 63 5.1.3 預裂隙內側尖端是否在同一垂直線比較 64 5.2 圍壓對兩裂隙之影響 64 5.2.1 5 MPa圍壓與單壓試體比較 64 5.3 綜合討論 65 第六章 結論與建議 75 6.1 結論 75 6.2 建議 76 參考文獻 77 附錄A 論文口試─問題與回覆 81 | |
dc.language.iso | zh-TW | |
dc.title | 利用個別元素法分析人造岩石之裂隙延伸及力學行為 | zh_TW |
dc.title | Using DEM to Analyze Crack Extension and Mechanical Behavior of Artificial Rock | en |
dc.type | Thesis | |
dc.date.schoolyear | 99-2 | |
dc.description.degree | 碩士 | |
dc.contributor.coadvisor | 李宏輝 | |
dc.contributor.oralexamcommittee | 張國楨,翁孟嘉 | |
dc.subject.keyword | 裂隙延伸,個別元素法,雙軸應力,數值分析,破裂力學, | zh_TW |
dc.subject.keyword | fracture coalescence,distinct element method,biaxial loading,numerical simulation,fracture mechanics, | en |
dc.relation.page | 90 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2011-08-15 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 土木工程學研究所 | zh_TW |
顯示於系所單位: | 土木工程學系 |
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