【摘要】 为研究露天矿边坡安全管理与边坡自身失稳流变与突变过程间的关系,探寻利用流变突变理论研究露天矿山边坡失稳的方法,将露天矿边坡体系和边坡安全管理体系相结合,提出露天矿广义边坡体系。在此基础上,建立露天矿边坡安全流变突变模型。研究边坡失稳的正常生产流变、本质损伤流变、不稳定加速损伤以及突变等4个阶段的各个模型的作用机理与特点。结果表明,为保证广义边坡体系的稳定与安全,应提高负熵和组织结构有序度以延长体系的流变,尽量使边坡维持在正常生产流变阶段。同时,由于组织结构有序度对广义边坡体系突变点的影响,被合理安全管理的边坡,相对更不易发生突变。考虑到边坡安全管理的影响,通过FLAC3D模拟得到的安全系数更为保守。更多还原

【Abstract】 In order to study the relationship between safety management and slope the rheology-mutation process of slope losing instability and seek ideas and methods for studying open-pit mine slope instability by rheology-mutation theory,the authors combined open-pit slope system with safety management system to form a generalized open-pit slope system.Arheology-mutation model was built for open-pit safety based on the generalized system.Action mechanisms and characteristics of 4 phases of slope failure were studied.Results show that to ensure stability and safety of the generalized slope system,the slope should be maintained in phase of normal production rheology as far as possible through prolonging rheology of system by means of improving negative entropy and order degree of organization structure,that open-pit slope under reasonable safety management is relatively less likely to mutate,and that bearing influence of slope safety management in mind,the safety coefficient obtained through FLAC3D is more conservative.更多还原