(1.辽宁工程技术大学土木工程系，阜新 123000;
2.东北大学资源与土木工程学院，沈阳 110006)
摘 要: 在室内对硅藻岩进行了主要物理力学指标测定和蠕变试验的基础上分析了软弱岩体的流变特性。根据Berger模型，建立了软弱岩体的流变状态方程和蠕变方程来分析支护前围岩移动规律和支护后流变地压的增长规律，同时还研究了软弱岩体的长期强度。
关键字: 软岩 流变地压 蠕变 长期强度 非线性回归分析
（1.Department of Civil Engineering, Liaoning Engineering Technolo gy University, Fuxin 123000 ;
2.Resources and Civil Engineering Institute, Northeastern University, S henyang 110006）
Abstract:The rheologic characteristics of flabby rock have been analyzed on the basis of siliceous rock's primary physicomechanical targets determined by indoor testing and creep tests. According to Berger model, rheologic constitutive equation and creep equation of flabby rock have been set in order to analyse moving regularity of surrounding rock before supporting and increasing regularity of rheologic pressure after supporting. The long-term strength of flabby rock has been studied in the mean time.
Key words: flabby rock rheologic pressure creep long-term strength nonlinear regression analyses
