A New Sensing System for Pre-excavation Subsurface Investigation for Tunnels in Rock Masses. Volume II. Appendices: Detailed Theoretical, Experimental and Economic Foundation

Rubin, L. A.; Fowler, J. C.; Griffin, J. N.; Still, W. L.

i

A New Sensing System for Pre-excavation Subsurface Investigation for Tunnels in Rock Masses. Volume II. Appendices: Detailed Theoretical, Experimental and Economic Foundation

1976-01-01
By Rubin, L. A. ; Fowler, J. C. ; Griffin, J. N.

File Language:

English

[PDF - 27.37 MB]

Details

Creators:

Rubin, L. A. ; Fowler, J. C. ; Griffin, J. N. ; Still, W. L.
Corporate Creators:

United States. Federal Highway Administration ; ENSCO, Inc
Subject/TRT Terms:
Publication/ Report Number:

FHWA-RD-77- 11 Final Rpt., 1061-TR-3-1-Vol-2
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Highway Administration
Abstract:

Contents: Theoretical studies-(Alternatives considered for a feasible baseline system, Rock characteristics of significance in tunneling, Range and resolution, Acoustic wave propagation in hard rock, Acoustic sensing system, Ground-probing radar, Electrical resistivity, Signal processing techniques applicable to subsurface investigation of rock masses through boreholes, Conceptual design of hard rock sensor conveyance device, Applicability of drill rigs as propulsion devices); Critical laboratory experiments-(Studies of geo-engineering properties of rock related to the use of radar and sonar probing systems, Transverse-dipole borehole antennas, Subsurface experiments with radar); Economic considerations-(Comparative study of probabilities of success of candidate system design concepts, Economic analysis of the full-capability system, Cost of pilot tunnels, Analysis of sensing cost-benefit ratios as functions of borehole size, Cost-effectiveness considerations for propulsion and penetration).
Format:

PDF
Funding:

DOT-FH-11-8602
Download URL:

https://rosap.ntl.bts.gov/view/dot/30588/dot_30588_DS1.pdf
File Type:

[PDF - 27.37 MB]
Collection(s):

US Transportation Collection ; Federal Highway Administration
Main Document Checksum:

urn:sha-512:f5e78b70ba3735988ec1ca427db246b0c31d91f3a43a1a1e4bec40406f50e95d5006fabee5a95b6bc7742a7004415c2533f597cbf6cac175e7fb488cafe98b72

File Language:

English

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