00228871

Component

http://onlinepubs.trb.org...s/hrr/1967/156/156-003.pdf

THE COMBINED TECHNIQUE METHOD IS DESCRIBED AND DEMONSTRATED FOR TERRAIN INVESTIGATION AT TEST SITES IN OHIO. THIS METHOD IS DEFINED AS AN ECONOMICAL COMBINATION OF INDIRECT AND DIRECT METHODS OF PROCURING THE SURFACE AND SUBSURFACE INFORMATION CONCERNING SOILS AND ROCKS THAT ENGINEERS AND CONTRACTORS REQUIRE FOR ESTABLISHING THE BEST LOCATION OF A CONSTRUCTION PROJECT OR FOR LOCATING NATURAL RESOURCES SUCH AS UNDERGROUND WATER, SAND AND GRAVEL AGGREGATES OR MINERALS. THE COMBINATIONS OF TECHNIQUES DESCRIBED ARE GENERALLY USEFUL FOR DEFINING AREAL EXTENT, DEPTH AND STRATIFICATION OF SOIL, SOIL AGGREGATE COMPOSITIONS AND ROCK LAYERING SYSTEMS TO DEPTHS OF 100 TO 200 FEET. THERE ARE TEN STEPS IN COMBINED-TECHNIQUES METHOD. PHOTO INTERPRETATION, UTILIZING PANCHROMATIC, COLOR AND INFRARED PHOTOGRAPHY AT APPROPRIATE SCALES AND FILM-FILTER COMBINATIONS, IS INITIALLY PROGRAMMED FOR A PROPOSED HIGHWAY ALIGNMENT SEGMENT. THIS PORTION OF THE PROCEDURE IS THEN COMPLEMENTED BY EITHER ELECTRICAL-RESISTIVITY OR SEISMIC- REFRACTION SURVEYS OR BOTH, AS DICTATED BY THE TERRAIN. LIMITED BORING DATA ARE UTILIZED FOR CALIBRATION NEEDS, AND ADDITIONAL BORINGS ARE OBTAINED WHERE NECESSARY TO VERIFY AND COMPLEMENT THE PHOTO INTERPRETATION AND GEOPHYSICAL ANALYSIS OF THE SUBSURFACE.

Paper sponsored by Committee on Exploration and Classification of Earth Materials. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

01410108

English

pp 33-61

1967

Highway Research Record

Digital/other

Figures (17) ; References (24) ; Tables (3)

Alignment; Boring; Color photography; Construction; Geophysical prospecting; Groundwater; Highways; Infrared photography; Location; Minerals; Natural resources; Photointerpretation; Refraction; Resistivity method; Rocks; Seismicity; Soil aggregates; Soil tests; Subsoil; Terrain; Test procedures

Seismic refraction; Site investigation

Construction; Geotechnology; Highways

TRIS, TRB

Aug 15 2004 2:37AM

• A REVIEW OF ENGINEERING SOIL CLASSIFICATION SYSTEMS
• PREDICTING THE CALIFORNIA BEARING RATIO FROM COMPACTION AND CLASSIFICATION DATA
• THE FACTOR OF SAFETY IN FOUNDATION ENGINEERING