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Author: Phil C. Sirles
Publisher: Transportation Research Board
Published: 2006
Total Pages: 117
ISBN-13: 0309097649
DOWNLOAD EBOOK →Introduction -- Geophysical methods -- Information sources and general responses -- Agency practice-Methods and applications -- Agency practice-budgeting, costs, and contracting -- Agency project experience -- Conclusions and future research needs -- Glossary -- References -- Topical bibliography -- Appendices.
Author: Brent Lyndon Rosenblad
Publisher:
Published: 2020
Total Pages: 0
ISBN-13: 9780309481373
DOWNLOAD EBOOK →Geophysical methods provide a means to rapidly and economically characterize subsurface conditions and infer soil properties over a spatial extent that is not possible with conventional methods. The TRB National Cooperative Highway Research Program's NCHRP Synthesis 547: Advancements in Use of Geophysical Methods for Transportation Projects evaluates the current state of practice in the use of geophysical methods by state transportation agencies. Challenges and obstacles remain that must be overcome if routine implementation of geophysical methods for transportation projects is to be realized. Uncertainties associated with insufficient or poor site characterization can lead to overly conservative designs, increased risk of poor performance, cost increases attributable to changed conditions, and project delays.
Author: David L. Allen (Transportation Engineer.)
Publisher:
Published: 2007
Total Pages: 231
ISBN-13:
DOWNLOAD EBOOK →Author:
Publisher:
Published: 2008
Total Pages: 35
ISBN-13:
DOWNLOAD EBOOK →"This circular offers an overview of 12 geotechnical geophysical methods that are commonly applied to transportation projects. Geotechnical geophysics is the application of geophysics to geotechnical engineering problems; such investigations normally extend to total depths of less than 300 ft. Geotechnical geophysical surveys are performed on the ground surface, within boreholes and water, and from the air. Using illustrations and brief examples, commonly employed geotechnical geophysical methods are described."--Page 1.
Author: Mark E. Everett
Publisher: Cambridge University Press
Published: 2013-04-25
Total Pages: 419
ISBN-13: 1107354978
DOWNLOAD EBOOK →Just a few meters below the Earth's surface lie features of great importance, from geological faults which can produce devastating earthquakes, to lost archaeological treasures. This refreshing, up-to-date book explores the foundations of interpretation theory and the latest developments in near-surface techniques, used to complement traditional geophysical methods for deep-exploration targets. Clear but rigorous, the book explains theory and practice in simple physical terms, supported by intermediate-level mathematics. Techniques covered include magnetics, resistivity, seismic reflection and refraction, surface waves, induced polarization, self-potential, electromagnetic induction, ground-penetrating radar, magnetic resonance, interferometry, seismoelectric and more. Sections on data analysis and inverse theory are provided and chapters are illustrated by case studies, giving students and professionals the tools to plan, conduct and analyze a near-surface geophysical survey. This is an important textbook for advanced-undergraduate and graduate students in geophysics and a valuable reference for practising geophysicists, geologists, hydrologists, archaeologists, and civil and geotechnical engineers.
Author: John Lopez
Publisher:
Published: 2006
Total Pages: 13
ISBN-13:
DOWNLOAD EBOOK →This Innovations Deserving Exploratory Analysis (IDEA) project demonstrated the application of a new mobile geophysical method based on electromagnetic induction technology to detect subsurface features and objects for highway-related projects. Two highway projects were identified in collaboration with Caltrans for evaluating the mobile geophysical technology. The first project was a road widening Donner Road Rehabilitation Project along highway I-80 (Nevada County). The IDEA work in this project investigated the geological composition of the soils beneath I-80. The second project was a bypass Cherry Avenue Project between Taft and Bakersfield (Western Kern County). The IDEA work determined soil texture density differences, identified plumes and selected geotechnical boring locations. The electromagnetic signatures were correlated with soil conditions and used to identify differences in geology, landform, and roadbed materials.
Author: Julio Alfonso Ramirez
Publisher: Frontiers Media SA
Published: 2021-08-18
Total Pages: 249
ISBN-13: 2889711862
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