【作者】 张传成；

【导师】 梁冰；

【作者基本信息】 辽宁工程技术大学 ， 工程力学， 2005， 硕士

【摘要】 本文针对开滦吕家坨矿巷道稳定性问题,以流变理论为基础,通过物理实验测定煤岩的基本力学参数和蠕变参数; 通过蠕变理论的分析,建立符合吕家坨矿实际的蠕变模型; 利用FLAC^3D软件对吕家坨矿巷道围岩的蠕变规律进行模拟; 在基本煤岩力学实验的基础上,提出岩体符合软岩的蠕变规律,从而对模型进行了合理的简化; 采用Burgers模型,建立适合吕家坨实际情况的蠕变模型; 通过对巷道围岩蠕变位移和蠕变速度的分析,揭示了吕家坨矿巷道围岩蠕变规律,为其巷道控制提供了可靠的理论依据。更多还原

【Abstract】 In the article, according to stability of tunnel in Lu jia tuo mine of Kailuan,on the basis of rheology,through the physical experiment,the basic mechanical parameter and the creep parameter of coal and rock were ascertained; by analyzing creep theory, actual creep constitutive model of Lu jia tuo mine was established; through numerical simulation,FLAC3D software forecast creep law of adjacent rock of tunnel in Lu jia tuo mine; according to the analysis mentioned above, the theory that rock had gradient compound board characteristic in mechanical properties was proposed, and the rock conformed to creep law; through Burgers model, actual creep model that suited LujiaTuo Mine was established; by analyzing creep displacement and creep speed of adjacent rock of tunnel, large deform in bottom of LuJiaTuo tunnel has been discovered, therefore, to control bottom of tunnel was extremely important.更多还原