Seismic Methods in Engineering Geology

This thesis describes an investigation of the possibilities to measure ground-mass and especially joint parameters (joint direction and joint density) for engineering purposes by means of seismic waves. Therefore a literature study and a field investigation in the United Kingdom were done. The results show that seismic wave behaviour in one ground-mass can vary widely as result of an anisotropic ground-mass, where the anisotropic character is caused by orientated discontinuities, e.g. jointing, and that fan-shooting can be a very useful method to determine these anisotropic groundmass parameters. In some cases it even is a necessary measuring method in order to determine the proper number of ground-mass layers. Memoir of the Section Engineering Geology No. 9