突变理论在安全埋高研究中的应用

APPLICATION OF CATASTROPHIC THEORY INTO RESEARCH ON SAFE HEIGHT

应用弹性力学理论建立了西南某巨型水电站地下厂房顶拱岩体的势能函数,进而应用突变理论建立了安全埋高尖点突变模型。该模型较好地解决了地下厂房顶拱岩体的变形破坏问题,解决了生产实践中提出的安全埋高问题。

Safe height(SH) is an important problem for rock mechanics when the stability of surrounding rocks of underground houses of a huge hydroelectricity power plant in Southwest is studied. The height between the discontinuity and the vault is defined as SH. The solution of this problem is of important significance for the design of support structure of surrounding rocks for underground houses economically and reasonably. The problem of SH is analyzed with catastrophic theory. On the basis of catastrophic theory,a catastrophic model with cusp point of SH is developed by using elastic mechanics theory,which is better to solve the problem in comparison with another solution developed from structural mechanics.