Methoden zur Erkundung und Beschreibung des Untergrundes von Deponien und Altlasten. Teilprojekt 11: Entwicklung seismischer Verfahren zur Erkundung des Untergrundes von Deponien und Altlasten mit Verwendung von Luftschallquellen, Bohrlochquellen und -aufnehmerketten Abschlussbericht

Beause of excause of excellent resolution in horizontal and vertial direcal direction, seismi has found its role, as the most important method, for the exploration of the subsurfac has found its role, as the most important method, for the exploration of the subsurface. By inreasing the frequencreasing the frequency ontent of the transmitted and recontent of the transmitted and received signals, and by dereasing the spacreasing the spacing between soure point as well as the rece point as well as the receiver points, seismis is able to explore in detail the ground below waste sites and abandoned industrial problem areas. It was the aim of this projecs is able to explore in detail the ground below waste sites and abandoned industrial problem areas. It was the aim pf this project to rationalize and make feasable a variety of different high resolution seismi methods to be applied from the surfac methods to be applied from the surface and from boreholes. Two air-sound soures were developed, improved and adapted to a multies were developed, improved and adapted to a multy channel high frequeny seismicy seismic reording unit and su ccessfully applied on several sites. An analog landstreamer was built and applied. The cording unit and successfully applied on several sites. An analog landstreamer was built and applied. The combination of unoupled coupled controlled soures with the landstreamer inces with the landstreamer increased the produtivity significtivity significantly. Seismi borehole applic borehole applications were improved by haining many rechaining many receivers and adapting repeatable high frequeny seismiy seismic and applying them in the same or another borehole as the reeivers. A subvertieivers. A subverticaal slope of an open pit of a waste dump was explored. (orig.)Available from TIB Hannover: F96B882+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman