Seismic Surface-Wave Tomography of Waste Sites - Final Report | |
Long, Timothy L. | |
Georgia Inst. of Tech., Atlanta, GA (United States) | |
关键词: Rayleigh Waves; Rayleigh Waves Rayleigh Waves; Seismic Surface Waves; Group-Velocity Tomography; Wastes; | |
DOI : 10.2172/781156 RP-ID : DOE/ER/14706 RP-ID : FG07-96ER14706 RP-ID : 781156 |
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美国|英语 | |
来源: UNT Digital Library | |
【 摘 要 】
The objective of this study was to develop analysis programs for surface-wave group-velocity tomography, and apply these to three test areas. We succeeded by obtaining data covering two square areas that were 30 meters on a side, and a third area that was 16 meters on a side, in addition to a collaborative effort wherein we processed data from the Oak Ridge National Laboratory site. At all sites, usable group velocities were obtained for frequencies from 16 to 50 Hz using a sledgehammer source. The resulting tomographic images and velocity anomalies were sufficient to delineate suspected burial trenches (one 4-meters deep) and anomalous velocity structure related to rocks and disturbed soil. The success was not uniform because in portions of one area the inversion for shear-wave structure became unstable. More research is needed to establish a more robust inversion technique.
【 预 览 】
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