Download or read book A New Sensing System for Pre excavation Subsurface Investigation for Tunnels in Rock Masses written by and published by . This book was released on 1976 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A New Sensing System for Pre excavation Subsurface Investigation for Tunnels in Rock Masses written by and published by . This book was released on 1976 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report includes a feasibility study and system design for an initial prototype of a sensing system for pre-excavation subsurface investigation for tunnels in rock. Tunnels in rock are very expensive, and costs often rise far above estimates when unforeseen problems are encountered during excavation. New techniques in rapid excavation technology, such as the development of boring machines, have increased the need for improved site investigation. Possibilities for a new sensing system that will provide more complete data on subsurface conditions were investigated. Favorable results obtained from high-resolution geophysical sensing in boreholes have been combined with improvements in drilling of long, horizontal, precise boreholes in order to provide an economical alternative to pilot tunnel for subsurface investigation.
Download or read book Report No FHWA RD written by United States. Federal Highway Administration. Offices of Research and Development and published by . This book was released on 1975 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A New Sensing System for Pre excavation Subsurface Investigation for Tunnels in Rock Masses written by and published by . This book was released on 1976 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1978 with total page 1228 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Download or read book Public Roads written by and published by . This book was released on 1984 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Delineation of Fractures in Igneous Rock Masses Using Common Offset Radar Reflection written by Michael J. Friedel and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Investigations written by and published by . This book was released on 1992 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Investigations written by Michael J. Friedel and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federally Coordinated Program of Highway Research and Development written by United States. Federal Highway Administration and published by . This book was released on with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Horizontal Stress Related to Stream Valleys on the Stability of Coal Mine Openings written by and published by . This book was released on 1992 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Information Processing Standards Publication written by and published by . This book was released on with total page 1228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Library Acquisitions written by United States. Department of Transportation and published by . This book was released on with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1978 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FHWA Publications written by United States. Federal Highway Administration and published by . This book was released on 1984 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A New Sensing System for Pre excavation Subsurface Investigation for Tunnels in Rock Masses Appendices Detailed theoretical experimental and economic foundation written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report includes a feasibility study and system design for an initial prototype of a sensing system for pre-excavation subsurface investigation for tunnels in rock. Tunnels in rock are very expensive, and costs often rise far above estimates when unforeseen problems are encountered during excavation. New techniques in rapid excavation technology, such as the development of boring machines, have increased the need for improved site investigation. Possibilities for a new sensing system that will provide more complete data on subsurface conditions were investigated. Favorable results obtained from high-resolution geophysical sensing in boreholes have been combined with improvements in drilling of long, horizontal, precise boreholes in order to provide an economical alternative to pilot tunnel for subsurface investigation.
Download or read book Electromagnetic Investigation of Abandoned Mines in the Galena KS Area written by and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
