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dc.contributor.authorLink, Lewis E. (Lewis Edward), 1946--
dc.contributor.authorWest, Harold W.-
dc.contributor.authorBenn, Bob O.-
dc.contributor.authorMobility and Environmental Systems Laboratory (U.S.)-
dc.identifier.govdocTechnical Report M-72-2 Report 1-
dc.descriptionTechnical Reporten_US
dc.description.abstractField data were collected in the first part of a two-part study to establish seismic response characteristics, their distribution, and the environmental factors that control. them in two U. S. Army Tropic Test Center seismic sensor test areas (Gamboa and Alpha) in the Panama Canal Zone. The data are assumed to represent dry-season conditions. Detailed seismic and environmental data collected are presented, and special seismic response tests (drop-hammer, man-walking, and ambient-noise) conducted in various environmental conditions at 9 sites in the Gamboa test area and 13 sites in the Alpha test area are described. Also discussed are the results (empirical regression equations) of a multicorrelation analysis used to relate the seismic response descriptors (peak particle velocity, peak summed particle velocity, and frequency) to the environmental parameters; the techniques used for mapping the seismic responses in the test areas; and the techniques for interpreting the seismic responses and terrain factor maps in terms of seismic intrusion detector performance. Results show that the seismic response from a drop-hammer energy source can be correlated with basic environmental parameters, and that sensor performance for one walking man can be approximated for dry-season conditions. The empirical equations, combined with the terrain factor complex maps, are shown to be a means of extrapolating seismic response characteristics to other test areas ·within the limits of the dry-season data used to generate the equations. The techniques used for evaluating the performance of seismic intrusion detectors do not represent the true inter-action of the seismic signal and the sensor logic.en_US
dc.description.sponsorshipSponsored by Test and Evaluation Command, U. S. Army Tropic Test Center, Project Nos. 960-009-000-008 and 960-009-000-007en_US
dc.description.tableofcontentsFOREWORD-v NOTATION AND DEFINITIONS-xiii CONVERSION FACTORS, BRITISH TO METRIC AND METRIC TO BRITISH UNITS OF MEASUREMENT-xvii SUMMARY-xix PART I: INTRODUCTION-1 Background-1 Objectives-2 PART II: TEST SITES AND DATA COLLECTED -3 The Test Areas -3 The Test Sites -9 Seismic Response Data-11 Environmental Data -15 PART III: CORRELATION OF SEISMIC RESPONSE AND ENVIRONMENTAL PARAMETERS -20 Selection of Seismic Response Descriptors-20 Selection of Seismic Response Test Records -24 Development of the Data Bank-27 Multiple Regression Analysis -31 Results of Analysis-33 PART IV: SEISMIC RESPONSE AND TERRAIN FACTOR MAPS AND THEIR INTERPRETATION IN TERMS OF SID PERFORMANCE-43 Seismic Response Mapping-46 Terrain Factor Mapping -69 Interpretation of Maps in Terms of SID Performance-79 PART V: SUMMARY OF RESULTS-81 PART VI: CONCLUSIONS AND RECOMMENDATIONS-81 Conclusions-81 Recommendations-82 SELECTED BIBLIOGRAPHY-83 TABLES 1-18 APPENDIX A: ENVIRONMENTAL DATA-A1 General Site Descriptions-A1 Refraction Seismic Data-A6 Man-Walking Test Data-A6 Ambient-Noise Data-A6 Graphical Solution for Predicting SID performance-A6-
dc.format.extent184 pages / 21.18Mb-
dc.publisherU.S. Army Engineer Waterways Experiment Stationen_US
dc.relation.ispartofseriesTechnical Report (U.S. Army Engineer Waterways Experiment Station);no. M-72-2 rept.1-
dc.rightsApproved for public release; distribution is unlimited-
dc.sourceThe ERDC Library created this digital resource using one or more of the following: Zeta TS-0995, Zeutcehl OS 12000, HP HD Pro 42-in. map scanner, Epson flatbed-
dc.subjectSeismic wavesen_US
dc.titleSeismic and Environmental Characteristics of the Sensor Test Areas in the Panama Canal Zone. Report 1, Dry-Season Conditionen_US
Appears in Collections:Technical Report

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