Construction of digital three-dimensional geologic environments for a subsurface investigation simulator

Author

Jon Brian Isaacson

Abstract

“Three-dimensional digital modeling of geologic sites was completed for use in BEST DrillSim, a subsurface investigation simulator. Candidate sites were selected based on the amount and availability of geologic information such as boring location maps, boring logs, well tests, and sample tests. Contoured geologic contacts and ground- water surface maps were developed from boring information. Horizontal slices of the site were then created using the geologic contours. The layers of the site were digitized and assembled in a three-dimensional site array containing elements corresponding to geologic materials beneath the site. By accessing the array, the simulator program was able to return geologic information at locations specified for virtual boreholes. Geologic property ranges were also assigned to each stratigraphic material in a separate site data file. The simulator could then use the data file to calculate material property values for individual boring samples. The sample values calculated by the simulator reflected changes with depth as well as random variation. Information on ground-water levels and contaminants were also contained in the data sets and this data could also be requested by the user. Three sites were modeled for the simulator employing these methods. The Fort Ord Military Reservation in Marina, California represents a coastal and shallow marine geologic environment. The Springfield Sanitary Landfill in Greene County, Missouri represents a residual soil over bedrock environment. The Blytheville Airport, Arkansas site represents an idealized meandering stream alluvial environment”--Abstract, page iii.

Advisor(s)

Santi, Paul M. (Paul Michael), 1964-

Committee Member(s)

Cawlfield, Jeffrey D.
Davis, Robert L.

Department(s)

Geosciences and Geological and Petroleum Engineering

Degree Name

M.S. in Geological Engineering

Publisher

University of Missouri--Rolla

Publication Date

Summer 2000

Pagination

x, 125 pages

Note about bibliography

Includes bibliographical references (pages 121-124).

Rights

© 2000 John Brian Isaacson, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Thesis Number

T 7804

Print OCLC #

45686913

Recommended Citation

Isaacson, Jon Brian, "Construction of digital three-dimensional geologic environments for a subsurface investigation simulator" (2000). Masters Theses. 1953.
https://scholarsmine.mst.edu/masters_theses/1953