构造形迹理论在断层判别中的应用研究

从地质力学的构造形迹理论入手,按力学性质将断层分为压性断层、张性断层、扭性断层和压扭性断层、张扭性断层5类,并分别阐述了上述断层在单期和多期复合活动中的宏观力学鉴定特征。在工程实践中通过对掌子面围岩构造形迹的准确观察,并配合TSP等地质超前预报技术能够准确判明前方断层性质,在隧道施工安全和经济方面取得了满意的效果。

Application Study on the Structural Feature Theory in Fault Field

Beginning with the structural feature theory of geological mechanics,the fault fields are classified into five types according to the mechanical properties,such as compressive fault,tensional fault,shear fault,compresso-shearing fault,tenso-shear faults.The identification characteristics of macroscopic mechanics in single period to intertemporal compound faults are explained.In engineering practices the front fault property will be accurately identified,and satisfactory results on tunnel construction may be achieved through this method both in the sense of safety and economy.