摘要
针对隧道围岩支护系统的稳定性、可靠性、安全性评价问题,基于Mohr-Coulomb准则,采用FLAC3D自带Fish语言,编制了相应Mohr-Coulomb准则点安全系数程序,并结合实例评判围岩稳定性。结果表明,自编程序计算的安全系数小于1的区域与FLAC3D软件计算的塑性区分布范围基本吻合,验证了该法合理有效、简便、易被工程界所接受,并通过求解围岩稳定的安全系数建立评价指标,为锚杆和衬砌支护提供合理的支护参数。
In order to solve the stability, reliability and safety evaluation of support system in tunnel surrounding rock, based on Mohr-Coulomb criterion, the program of safety factor with Mohr-Coulomb criterion is compiled by using / Fish Language in FLAC^3D software. Surrounding rock stability of a tunnel project is determined by point safety factor. The results show that ranges with safety factor less 1 calculated by the program are similar to the plastic areas calculated by FLAC^3D software. It demonstrates that the proposed method is effective and simple, which can be accepted by engineering world. Reasonable parameters for support of anchor bolt and lining are provided by solving safety factor of surrounding rock stability to establish evaluation index.
出处
《水电能源科学》
北大核心
2010年第4期100-102,共3页
Water Resources and Power
基金
国家自然科学基金资助项目(90610029)
湖北省教育厅自然科学研究基金资助项目(Q20091301)
