岩石力学与工程学报 Pub Date : 2017-10-15 DOI: 10.13722/J.CNKI.JRME.2017.0539

Xiaofeng Li, Haibo Li, Kai Liu, Qianbing Zhang, Feilong Zou, Lixing Huang, Jian Zhao

引用次数: 31

Development and application of numerical limit analysis for geotechnical materials 岩土材料数值极限分析的发展与应用

岩石力学与工程学报 Pub Date : 2017-02-23 DOI: 10.1201/9781138027619-25

Zheng Yingren

引用次数: 5

A monte carlo simulation for discontinuity orientations using bivariate empirical distribution 基于二元经验分布的不连续取向蒙特卡罗模拟

岩石力学与工程学报 Pub Date : 2015-09-15 DOI: 10.13722/J.CNKI.JRME.2014.0982

Jun Zheng, P. Kulatilake, Jianhui Deng, Jinbing Wei

引用次数: 6

Experimental study of microstructure and rock properties of shale samples 页岩样品微观结构与岩石性质实验研究

岩石力学与工程学报 Pub Date : 2014-08-01 DOI: 10.13722/J.CNKI.JRME.2014.S2.007

Xian Shi, Yuanfang Cheng, Shu Jiang, Dongsheng Cai, Tao Zhang

{"title":"Experimental study of microstructure and rock properties of shale samples","authors":"Xian Shi, Yuanfang Cheng, Shu Jiang, Dongsheng Cai, Tao Zhang","doi":"10.13722/J.CNKI.JRME.2014.S2.007","DOIUrl":"https://doi.org/10.13722/J.CNKI.JRME.2014.S2.007","url":null,"abstract":"The study of shale mechanical properties is very important for well completion and stimulation in shale gas reservoirs. Thus,the geomechanical properties of Paleozoic marine shale in Lower Yangtze Basin were studied.With the application of argon ion polisher,high-solution CT and scanning electron microscope,the shale samples were processed and their microstructures were observed. Besides, mineral compositions of this shale were analyzed by XRD technique. In order to get the compression characteristic of shale, the scratch and uniaxial experiments were performed. In addition, the loading and unloading situations were simulated under different effective stress conditions in order to reduce negative effects of natural fissures and rock relaxation. Finally,the multi-stage triaxial compression deformation experiment was performed on the triaxial rock testing system for calculating cohesive strength and inherent friction angle. The study of shale mechanical properties is veryimportant for well completion and stimulation in shale gas reservoirs. Thus, a systematic experiments was performed on Paleozoic marine shale samples collected from Lower Yangtze Basin, and the microscopic structure,mineral compositions and the geomechanical properties of marine shale samples were studied. Testing result shows that except for shale sample with natural fractures,both the values of Youngs modulus and Poissons ratio increase with the increase of confining pressure. But in the unloading condition, the Young s modulus increases with the decrease of confining pressure,whereas the Poisson s ratio is greater than that in its loading condition. The inherent friction angle is within approximately 40°and the shale sample with high brittleness index tends to crack as fracture network according to the multi-stage triaxial compression test. This research is greatly helpful for the study of shale mechanical properties,and provides technical parameters for well completion design and stimulation.","PeriodicalId":39725,"journal":{"name":"岩石力学与工程学报","volume":"33 1","pages":"3439-3445"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66578972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

Strength of unsaturated lime-treated expansive clay in Hefei 合肥地区非饱和石灰处理膨胀粘土强度研究

岩石力学与工程学报 Pub Date : 2014-08-01 DOI: 10.13722/J.CNKI.JRME.2014.S2.104

Mingwu Wang, Shuai Qin, Jian Li, Peng Xu

引用次数: 5

DRILLING PROCESS MONITORING FOR REFINING AND UPGRADING ROCK MASS QUALITY CLASSIFICATION METHODS 钻孔过程监测改进和改进岩体质量分级方法

岩石力学与工程学报 Pub Date : 2014-01-01 DOI: 10.13722/J.CNKI.JRME.2014.10.005

Q. Yue

{"title":"DRILLING PROCESS MONITORING FOR REFINING AND UPGRADING ROCK MASS QUALITY CLASSIFICATION METHODS","authors":"Q. Yue","doi":"10.13722/J.CNKI.JRME.2014.10.005","DOIUrl":"https://doi.org/10.13722/J.CNKI.JRME.2014.10.005","url":null,"abstract":"A new technique,a new method and a new law were put forward for the refinements and upgrading of current engineering rock mass quality classification methods,i.e. the automatic drilling process monitoring(DPM) technique,the fast and direct time-series analysis of the DPM data and the DPM based findings that the curve of the drill bit advancement depth versus the net drilling time can be easily measured and calculated and that it can be represented as a set of connected linear lines. Each linear line zone has a constant slope gradient or drilling speed and represents an intact and homogeneous rock block. The position of the curve slope gradient jump between any two connected linear zones represents a discontinuity plane. DPM can offer a new measurement method and many factual data for the refinements and upgrading. Consequently,the uniaxial compressive strengths,sizes and spatial locations of rock material blocks and the associated discontinuities in underground can be rapidly,effectively,objectively and quantitatively measured and estimated. Case studies are given to illustrate,explain and describe the new technique,the new method and the new law. The approach and its associated equations were presented to refine and upgrade the current RQD,Q,RMR and BQ methods for rock mass quality classifications. The methods for objectively and effectively measure were included and the rock strength,RQD,rock mass integrity,rock hardness and discontinuities were estimated.","PeriodicalId":39725,"journal":{"name":"岩石力学与工程学报","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66578917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 27

MECHANICAL ANALYSIS OF SEGMENT FLOATING DURING SHIELD TUNNEL CONSTRUCTION 盾构隧道施工中管片浮力的力学分析

岩石力学与工程学报 Pub Date : 2012-12-03 DOI: 10.2495/AIE120631

G. Wei, Jie Hong, X. Wei

引用次数: 3

Experimental and Analytical Study of Hydraulic Fracturing of Cylinder Sample 圆柱体试样水力破裂试验与分析研究

岩石力学与工程学报 Pub Date : 2009-01-01 DOI: 10.1007/978-3-540-89465-0_47

Mei-li Zhan, J. Sheng, J. Cen

引用次数: 11

RESEARCH ON TWO-PARAMETER PARABOLIC MOHR STRENGTH CRITERION AND ITS DAMAGE REGULARITY 双参数抛物型莫尔强度准则及其损伤规律研究

岩石力学与工程学报 Pub Date : 2005-01-01 DOI: 10.4028/0-87849-989-x.327

Wang Shui-lin

引用次数: 13

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