浅层地震映像法在破碎带勘察中的应用

Application of Shallow Seismic Imaging Method to Exploration of Fracture Zones

破碎带是基础设施建设的重大不良地质隐患。地震映像法利用其快速、便捷的特点成为探查破碎带的重要手段。介绍了地震映像法基本原理及破碎带在地震映像图上的基本特征,并应用该方法对某高速公路破碎带进行了勘察试验,揭示了破碎带在地震映像时间剖面上的特征为同相轴突然倾斜、增多,振幅增大及绕射等现象。结果表明,地震映像法用于山体破碎带勘察是行之有效的方法。

In the infrastructure construction,the fracture zones are the major hidden trouble in geology.The seismic imaging method can be used as the important means to explore the facture zones because of its features with speed and convenience.In this paper,it introduces the principles of seismic imaging method and the basic features of fracture zones in the seismic imaging maps,and applied them to exploring the fracture zone on highways.It shows that the features of fracture zones on seismic imaging profiles are that the seismic event has increased and the amplitude has expanded.Thus,the result shows the seismic imaging method is effective in exploring fracture zones in mountain areas.