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| 炭质页岩常规三轴试验和本构方程的研究 | |
| 引用本文： | 解廷堃,李二利,刘如成.炭质页岩常规三轴试验和本构方程的研究[J].露天采矿技术,2008(6). |
| 作者姓名： | 解廷堃 李二利 刘如成 |
| 作者单位： | 1. 平朔安家岭露天煤矿,山西,朔州,030006 2. 山西大同同煤国电同忻煤矿有限公司,山西,大同,037003 3. 平朔东露天矿,山西,朔州,036006 |
| 摘 要： | 利用XTR01-01型微机控制电液伺服岩石三轴试验仪,研究了堡镇隧道大变形段的裂隙岩体(炭质页岩)在围压为0～25MPa下的应力—应变全过程曲线,建立了屈服强度、峰值强度、残余强度与围压的关系。根据塑性力学的相关理论,提出三线性弹性—线性软化—残余理想塑性五线性模型,并应用于炭质页岩,得到了炭质页岩各段的本构方程,并讨论了软化段。结果表明,理论模型和试验结果吻合较好。 |
| 关 键 词： | 岩石力学 三轴压缩试验 本构模型 控制方程 |
Research on carbonaceous shale general tri-axial test and constitutive equation |
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| XIE Ting-fang,LI Er-li,LIU Ru-cheng.Research on carbonaceous shale general tri-axial test and constitutive equation[J].Opencast Mining Technology,2008(6). | |
| Authors: | XIE Ting-fang LI Er-li LIU Ru-cheng |
| Affiliation: | XIE Ting-fang1,LI Er-li2,LIU Ru-cheng3(1.Pingshuo Anjialing Surface Mine,Shuozhou 036006,China,2.Datong Coal Guodian Tongxin Coal Mine Limited Company of Shanxi Datong,Datong 037003,3.Pingshuo Eastern Surface Mine,Datong 036006,China) |
| Abstract: | Using the XTR01-01 type computer control electro-hydraulic servo rock triaxial compression tester,this paper studied fractured rock mass(carbonaceous shale) complete stress-strain curve under 0～25Mpa confining pressure of Baozhen tunnel section with huge deformations,and the relationship among the yield strength,peak strength,residual strength and the confining pressure are obtained.Based on the plastic theories,the trilinear elastic-linear strain softening-residual ideal plastic model is put forward and applied to carbonaceous shale,and the constitutive equation of carbonaceous shale is obtained.The constitutive equation of strain softening is discussed.The results showed that theoretical model agree well with test results. |
| Keywords: | rock mechanics triaxial compression test constitutive model control equation |
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