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岩石破裂行为的实验研究 被引量:8

Experiment on the Fracture Behaviour in Rocks
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摘要 岩样的破裂行为、破坏过程和参数测试是裂隙断裂构造研究的基础和依据。实验岩石样品采自四川东部和新疆北部地区 ,为测试准确起见 ,对岩样进行了应力等值线的有限元法计算。通过单轴和三轴实验的岩样破坏观察和应力应变曲线对比 ,将岩石的破裂行为、应力应变划分为四个阶段 ,即裂隙压密阶段、弹性变形阶段、微观劈裂阶段和宏观破裂阶段。基于单轴抗压实验岩石劈裂—破裂—碎裂发展过程的微观分析 ,可以看出宏观破裂主要是沿岩样原有的隐裂隙、临界裂隙发育的 ,许多新裂隙则主要是在宏观破裂阶段产生的。 Fracture behaviour,failure process and parameter determination of the rock specimens are the basis for research on the fissure fault structures. Experimental rock specimens were collected from the eastern Sichuan and northern Xinjiang provinces,and the stress isopleths to the rock specimens were calculated with a finite element method (FEM) for accurate determination. Based on the failure observation and curve comparison of rock specimens from the uniaxial and triaxial experiments,the fracture behaviour and stress-strain of the rocks can be divided into four stages,the fissure pressure-airtightness stage,the elastic deformation stage,the microscopic split stage and the macroscopic fracture stage. Through the microscopic analysis of developing process of the rock split-fracture-smash from the uniaxial pressure experiment,it is found that the macroscopic fractures are mainly developed along the primitive hidden fissures and critical fissures,and formation of many new fissures mainly occurs in the macroscopic fracture stage.
出处 《高校地质学报》 CAS CSCD 2004年第2期290-296,共7页 Geological Journal of China Universities
基金 国家自然科学基金 (批准号 :4 0 372 0 92 4 0 172 0 72 ) 油气藏地质及开发工程国家重点实验室资助
关键词 岩石力学实验 破裂行为 临界裂隙 应力应变曲线 微观分析 rock mechanic experiment fracture behaviour critical fissure stress-strain curve microscopic analysis
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  • 1孙岩,沈修志,T.SUZUKI.STUDY ON THE DUCTILE DEFORMATION DOMAIN OF THE SIMPLE SHEAR IN ROCKS——TAKING BRITTLE FAULTS OF THE COVERING STRATA IN THE SOUTHERN JIANGSU AREA AS AN EXAMPLE[J].Science China Chemistry,1992,35(12):1512-1520. 被引量:6
  • 2Sun Yan,Shi Zejin.Study on mechanical parameters of rocks and regional layerslip system in Hunan-Jiangxi area, Science in China, Ser[].B.1993
  • 3Grass,O. P.Stability analysis of an artificial cut in a weak siltstone. Proceedings, Seventh Int. Cong. on Rock Mechanics ( . Sept.10-201991
  • 4Liou,JG,Maruyama,S,Cho,M,Frey,M.Very low-grade metamorphism of volcaniclastic rocks-mineral assemblages and mineral facies[].Very Low-Grade Metamorphism.1987
  • 5Freeman Y B,Needham D T.Quantitative fault seal prediction[].American Association of Petroleum Geologists Bulletin.1997
  • 6Bouvier J D,,Kaars-Sijpestijn C H,Kluesneret D F, et al.Three-dimensional seismic interpretation sealing investigations, Nun River Field, Nigeria[].American Association of Petroleum Geologists Bulletin.1989
  • 7Thomas D,Ortoleva P.Differentiated structure arising from mechano-chemical feedback in stressed rocks[].Earth Science Reviews.1990
  • 8Hattori I,Yamamoto H.Rock fragmentation and particle size in crushed zones by faulting[].The Journal of Geology.1999
  • 9Ricca,R.?L.,Berger,M.?A.Topological ideas and fluid mechanics[].Physics Today.1996
  • 10Conti, A,Turpin, L,Polino. R. et al.The relationship between evolution of fluid chemistry and the style of brittle deformation: example from the northern Apennines(Italy)[].Tectonophysics.2001

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