Rock mass structure analysis based on seismic velocity and attenuation images

Seismic traveltime, amplitude and pulse-width can be used to reconstruct se ismic velocity and attenuation coefficient images for a rock mass. This stu dy discusses the appearance differences of velocity and attenuation coeffic ient in the ore vein and rock mass in the images. The location of the rock vein and the characteristic of the rock mass are discussed according to the difference responses of velocity and attenuation from the ore vein and mix ed rock vein, fracture and rock body. The effect and limitation of the seis mic tomography method for investigating ore body and rock mass is suggested on the basis of a field test result. The special observation method in thi s study gives a good reference for obtaining full position and directional observation in seismic tomography.