工程地质学报2016，Vol.24Issue(2)：284-291,8.DOI:10.13544/j.cnki.jeg.2016.02.015
渤海地区岩样的试验研究以及新型岩石损伤本构模型的建立
EXPERIMENTAL STUDY ON CONSTITUTIVE RELATION OF ROCK SPECIMENS IN BOHAI AREA AND ESTABLISHMENT OF A NEW CONSTITUTIVE MODEL OF ROCK DAMAGE
摘要
Abstract
Bohai rock samples have been studied in order to speed up oil and gas resource exploitation in Bohai and improve the existing theory system of rock damage constitutive models.According to the test result parameters, a new damage constitutive model of rock is established.Firstly,with the test of variable temperature and confining pressure of rock specimens in the tri-axis test instrument,the whole stress-strain curves of rock samples are obtained.The Poisson's ratio,elastic modulus and maximum differential stress of the rock are calculated.Secondly, using the graphic method for Mohr stress circle,the cohesive force and internal friction angle of rock samples are determined.Lastly,according to parts of the test data,a new damage constitutive model of rock has been built.The model refers fewer parameters and simple calculation.The calculation results of the model and the whole stress-strain curves of test have verified the accuracy of this rock damage constitutive model.The conclusions of the study can provide experimental and theoretical support to improve the rock damage model and the efficient exploitation of petroleum resources on site.关键词
岩石/温度/围压/试验研究/本构模型Key words
Rock/Temperature/Confining pressure/Experimental study/Constitutive model分类
能源科技引用本文复制引用
田家林,付传红,梅鑫,杨琳,李友,朱永豪..渤海地区岩样的试验研究以及新型岩石损伤本构模型的建立[J].工程地质学报,2016,24(2):284-291,8.基金项目
石油天然气装备教育部重点实验室（西南石油大学）项目（OGE10），国家自然科学基金（51074202，11102173），四川省教育厅成果转化重大培育项目（12ZZ003），西南石油大学研究生创新资金（CX2014SY26）资助． （）
