Seismic Characterization of Basalt Topography at Two Candidate Sites for the INL Remote-Handled Low-Level Waste Disposal Project

Jeff Sondrup ; Gail Heath ; Trent Armstrong ; Annette Shafer ; Jesse Bennett ; Clark Scott

关键词: AR FACILITIES;    BASALT;    CROSS SECTIONS;    FENCES;    INEEL;    PROCESSING;    REFRACTION;    TEST REACTORS;    TOPOGRAPHY;    RADIOACTIVE WASTE DISPOSAL;    LOW-LEVEL RADIOACTIVE WASTES;    RADIOACTIVE WASTE FACILITIES;    REMOTE HANDLING Seismic;    Topography;   

DOI  :  10.2172/1031689
RP-ID  :  INL/EXT-11-23793
PID  :  OSTI ID: 1031689
Others  :  TRN: US1200203

美国|英语

来源: SciTech Connect

【 摘 要 】

This report presents the seismic refraction results from the depth to bed rock surveys for two areas being considered for the Remote-Handled Low-Level Waste (RH-LLW) disposal facility at the Idaho National Laboratory. The first area (Site 5) surveyed is located southwest of the Advanced Test Reactor Complex and the second (Site 34) is located west of Lincoln Boulevard near the southwest corner of the Idaho Nuclear Technology and Engineering Center (INTEC). At Site 5, large area and smaller-scale detailed surveys were performed. At Site 34, a large area survey was performed. The purpose of the surveys was to define the topography of the interface between the surficial alluvium and underlying basalt. Seismic data were first collected and processed using seismic refraction tomographic inversion. Three-dimensional images for both sites were rendered from the data to image the depth and velocities of the subsurface layers. Based on the interpreted top of basalt data at Site 5, a more detailed survey was conducted to refine depth to basalt. This report briefly covers relevant issues in the collection, processing and inversion of the seismic refraction data and in the imaging process. Included are the parameters for inversion and result rendering and visualization such as the inclusion of physical features. Results from the processing effort presented in this report include fence diagrams of the earth model, for the large area surveys and iso-velocity surfaces and cross sections from the detailed survey.