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    <title>Transport Research International Documentation (TRID)</title>
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
    <image>
      <title>Transport Research International Documentation (TRID)</title>
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      <link>https://trid.trb.org/</link>
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    <item>
      <title>SOME ASPECTS OF CONSTRUCTION MATERIALS EXPLORATION FOR THE SNOWY MOUNTAINS SCHEME</title>
      <link>https://trid.trb.org/View/121111</link>
      <description><![CDATA[SOME OF THE ASPECTS OF THE EXPLORATION PHASE OF THE INVESTIGATION OF SOURCES OF CONSTRUCTION MATERIALS ARE OUTLINED FOR THE SNOWY MOUNTAINS SCHEME. DETAILED METHODS ARE DESCRIBED FOR THE EARTH BORROW AREA EXPLORATION, GRAVEL- SAND EXPLORATION, AND QUARRY SIGHT EXPLORATION. THE SOILS CLASSIFICATION SYSTEM IS MODIFIED FROM CASAGRANDE'S ORIGINAL AIRFIELD CLASSIFICATION SYSTEM. IT IS SIMILAR TO, BUT CLAIMED TO BE MORE PRECISE THAN THE UNIFIED SOIL CLASSIFICATION SYSTEM NOW USED IN THE UNITED STATES. ALL EXPLORATION IS RECORDED WITH THE AID OF THE DATA CHART ON LOGS AND EXCAVATION RECORDS. THE AUTHOR BELIEVES THAT THE EXPLORATION FOR SOURCES OF CONCRETE AGGREGATES AND EMBANKMENT MATERIALS BY THE SNOWY MOUNTAINS AUTHORITY IS A CO-OPERATIVE, CO-ORDINATED EFFORT BASED ON THE DISCIPLINES OF ENGINEERING GEOLOGY AND ENGINEERING ECONOMICS.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:38:05 GMT</pubDate>
      <guid>https://trid.trb.org/View/121111</guid>
    </item>
    <item>
      <title>TWO-DAY CONFERENCE ON EXPLORATORY BORING AND CORE SAMPLING</title>
      <link>https://trid.trb.org/View/121082</link>
      <description><![CDATA[AFTER EXPLAINING THE REASONS FOR THE ORGANIZATION OF THIS CONFERENCE AND THE OBJECTIVES AIMED AT, THE AUTHOR COMMENTS ON THE DIFFERENT EXPERIMENTS INVOLVED. FIRST, SOME SOIL AUGERS WERE PRESENTED ON A FOREST SITE. THE BORINGS HAD TO BE MADE IN SILICEOUS CLAY. THE RESULTS OF THE DEMONSTRATION ARE GIVEN IN TWO TABLES AND A COMPARISON IS MADE BETWEEN THE DIFFERENT TECHNIQUES, ON THE ONE HAND BETWEEN SLOW SPEEDS AND HIGH SPEEDS, AND ON THE OTHER HAND BETWEEN LARGE- DIAMETER SINGLE-SPIRAL AUGERS AND SMALL-DIAMETER CONTINUOUS AUGERS. THEN CAME A PRESENTATION OF MACHINERY MAINLY DESIGNED FOR RECONNAISSANCE AND EXPLORATION IN SUBMERGED NON-COHESIVE ALLUVIAL FORMATIONS. THE AUTHOR CONSIDERS THAT STUDY OF THE SUBJECT SHOULD MAKE IT POSSIBLE TO REDUCE THE DRAWBACKS NOTED IN RESPECT OF THE BENOTO DRILLING RIG, WHICH IS PERFECTLY SUITED TO SUBMERGED ALLUVIAL SOIL. THE DEMONSTRATION OF THE P.T.C. VIBRATORY DRIVER DID NOT BRING OUT THE POTENTIALITIES OF THIS MACHINE, WHICH OPERATES PERCUSSIVELY WHEN THE RESISTANCE OF THE SOIL IS HIGH, AND BY VIBRATION WHEN THE RESISTANCE DROPS. THE MENARD ROTARY VIBRATORY DRIVER IS A LIGHTWEIGHT MACHINE WHICH, BY VIBRO- PERCUSSION, ENABLES A TUBE COLUMN TO BE LOWERED AND RAISED AND CORE SAMPLES TO BE TAKEN BY ROTATION. SOME MOBILE DRILLING RIGS, SUCH AS THE MOBILE DRILLING MINUTEMAN AND THE S.L.R., WERE ALSO PRESENTED, ALONG WITH TWO CORE BORERS, ONE OF THE SCREW TYPE, THE OTHER OF THE PRESSURE TYPE, WHICH CAN PROVIDE SAMPLES FOR C.B.R. TESTS. TWO STATIC PENETROMETERS, THE FRENCH PAREZ AND THE DUTCH GOUDA, WERE COMPARED. ESPECIALLY NOTEWORTHY WAS THE INKING SYSTEM OF THE LATTER. THE SECOND PART OF THE ARTICLE IS DEVOTED TO ROADBUILDING CORE BORERS. THE RESULTS OF TESTS CARRIED OUT ON BITUMINOUS MIX, CONCRETE AND GRAVEL-CEMENT TRACKS, AND IN A CONCRETE WALL, ARE GIVEN IN A GENERAL TABLE, SOME CRITICISM AND SUGGESTIONS ARE ALSO FORMULATED. IT APPEARS IN PARTICULAR THAT ROAD-MAKING CORE BORINGS MAY NECESSITATE AT LEAST TWO TYPES OF VARIOUS CORE BORERS IN A LIMITED RANGE OF DIAMETERS. /AUTHOR/]]></description>
      <pubDate>Sun, 15 Aug 2004 02:37:58 GMT</pubDate>
      <guid>https://trid.trb.org/View/121082</guid>
    </item>
    <item>
      <title>FOUNDATION EXPLORATION</title>
      <link>https://trid.trb.org/View/120554</link>
      <description><![CDATA[CONTENTS: SOIL FORMATION SOIL IDENTIFICATION EXPLORATION AIMS RECONNAISSANCE GEOPHYSICS BORINGS SAMPLING FIELD TESTS LOGGING PROGRAM REFERENCES]]></description>
      <pubDate>Sun, 15 Aug 2004 02:35:53 GMT</pubDate>
      <guid>https://trid.trb.org/View/120554</guid>
    </item>
    <item>
      <title>REMOTE SENSING</title>
      <link>https://trid.trb.org/View/120142</link>
      <description><![CDATA[METHODS OF REMOTE SENSING OTHER THAN THE NATURAL SENSES' EYES, EARS, AND SKIN ARE DISCUSSED. IMPROVED TECHNIQUES OF REMOTE SENSING, SUCH AS INFRARED SENSORS, ARE USED TO DETECT FOREST FIRES. MICROWAVE DEVICES ARE USED TO MAP ICE THICKNESS AND DISTRIBUTION. RADAR IS EMPLOYED TO MEASURE THE MOISTURE CONTENT OF SOIL. THE U.S. ARMY ENGINEER WATERWAYS EXPERIMENT STATION IN MISSISSIPPI IS WORKING WITH RADAR AND GAMMA-RAY SPECTROMETERS TO ANALYZE SOIL CONDITIONS IN ORDER TO FINGERPRINT SPECIFIC PROPERTIES SUCH AS SOIL TYPE, MOISTURE CONTENT, AND DENSITY. ARMY ENGINEER GEODESY, INTELLIGENCE AGENCY, HAS A RADAR MAPPING TEST FACILITY AT WILLCOX DRY LAKE, ARIZONA, FOR FUTHER INVESTIGATIONS OF SURFACE AND BURIED ROCK PATCHES.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:34:15 GMT</pubDate>
      <guid>https://trid.trb.org/View/120142</guid>
    </item>
    <item>
      <title>PANEL DISCUSSION ON PRELIMINARY EXPLORATION FOR HIGHWAYS WITH EMPHASIS ON LOCAL PROBLEMS</title>
      <link>https://trid.trb.org/View/119078</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:11:45 GMT</pubDate>
      <guid>https://trid.trb.org/View/119078</guid>
    </item>
    <item>
      <title>COMPREHENSIVE INVESTIGATIONS FACILITATE DESIGN OF INTERSTATE HIGHWAY OVER BOTTOMLAND SOILS</title>
      <link>https://trid.trb.org/View/119072</link>
      <description><![CDATA[REPORTED ARE INVESTIGATIONS FOR 15 MILES OF I-255 NEAR EAST ST. LOUIS, ILLINOIS. THE MAJOR PROBLEM INVOLVED: DETERMINING THE EXTENT, PROPERTIES AND TREATMENT OF EXTENSIVE, IRREGULAR AND FREQUENTLY BURIED DEPOSITS OF SOFT ORGANIC AND COMPRESSIBLE SOILS. DESCRIBED ARE: DEVELOPMENT OF THE EXPLORATION PROGRAM, SAMPLING AND TESTING METHODS, PRESENTATION AND ANALYSIS TECHNIQUES AND PARTIAL RESULTS. NON-ROUTINE ASPECTS OF THE PROGRAM INCLUDED: EXTENSIVE USE OF SPLIT-SPOON BORINGS (VS. AUGER BORINGS), RELATIVELY DEEP PILOT BORINGS, SWAMP PROBES AND UNDISTURBED SAMPLING, CONE PENETROMETER SOUNDINGS, VANE SHEAR TESTS AND GROUND-WATER OBSERVATION WELLS, STANDARD AND SPECIAL CONSOLIDATION AND TRIAXIAL TESTS, ECONOMIC STUDIES OF BORROW SOURCES AND SWAMP TREATMENTS, AND, COMPLETE DOCUMENTATION OF THE INVESTIGATIONS. /AUTHOR/]]></description>
      <pubDate>Sun, 15 Aug 2004 02:11:35 GMT</pubDate>
      <guid>https://trid.trb.org/View/119072</guid>
    </item>
    <item>
      <title>COMBINED INVESTIGATION TECHNIQUES FOR PROCURING HIGHWAY DESIGN DATA</title>
      <link>https://trid.trb.org/View/119071</link>
      <description><![CDATA[SEVERAL COMBINATIONS OF DIRECT AND INDIRECT SOILS EXPLORATION TECHNIQUES (COMBINED-TECHNIQUE METHODS) HAVE BEEN EVALUATED OVER A VARIETY OF TERRAIN IN OHIO. THE COMPONENTS OF THE COMBINED-TECHNIQUE METHODS ARE AIRPHOTO INTERPRETATION, ELECTRICAL RESISTIVITY AND SEISMIC REFRACTION SURVEYS, AND THE CURRENTLY ACCEPTABLE BORING METHODS. RESEARCH INDICATES THAT SELECTED TECHNIQUE COMBINATIONS FURNISH SUITABLE HIGHWAY DESIGN DATA IN CERTAIN REGIONS OF THE STATE. OHIO CAN BE SUBDIVIDED INTO FOUR REGIONS ON THE BASIS OF BEDROCK STRATIGRAPHY OR THICKNESS OF GLACIAL DRIFT. FOR EACH OF THESE REGIONS A SELECTED TECHNIQUE COMBINATION IS RECOMMENDED FOR PROCUREMENT OF SOIL AND ROCK DATA FOR USE IN HIGHWAY DESIGN. TWO ADDITIONAL TECHNIQUE COMBINATIONS ARE RECOMMENDED FOR THE SPECIAL INVESTIGATIONS REQUIRED FOR SOFT-SUBSOIL AND LANDSLIDE- SUSCEPTIBLE REGIONS. /AUTHOR/]]></description>
      <pubDate>Sun, 15 Aug 2004 02:11:34 GMT</pubDate>
      <guid>https://trid.trb.org/View/119071</guid>
    </item>
    <item>
      <title>EXPEDITING AND SIMPLIFYING SOIL EXPLORATION THROUGH DRILLING MUD</title>
      <link>https://trid.trb.org/View/119041</link>
      <description><![CDATA[THE PAPER DESCRIBES A METHOD OF BORING, SAMPLING AND PENETRATION BY USING BENTONITE SLURRY. THE PROCESS IS SIMPLE AND FAST. THE EQUIPMENT REQUIRED IS ALSO INEXPENSIVE AND IS READILY AVAILABLE. THE METHOD AVOIDS THE USE OF CASING PIPES AND THE SOIL IS RELATIVELY LESS DISTURBED. FOR OBTAINING SOIL SAMPLES A SIMPLE DEVICE HAS BEEN USED SO AS TO ENSURE A CONTINUOUS PENETRATION. THE SAMPLER OPENS ONLY AT THE DESIRED DEPTH BY ROTATING THE DRILL ROD AND IT HAS BEEN SUCCESSFULLY USED FOR RECOVERING UNDISTURBED SOIL SAMPLES FROM EVEN LARGE DEPTHS EXCEEDING 80 METERS FROM A SANDY AT A BRIDGE SITE. FOR PENETRATION TESTS A CONE OF 2-1/2 IN. DIA. IS ATTACHED TO A DRILL ROD AND DRIVING OF THE CONE AND PUSHING IN OF THE SLURRY IS SIMULTANEOUSLY CARRIED OUT. THE SLURRY KEEPS THE BORE LINED AND MANY FACTORS LIKE FRICTION ON RODS, EFFECT OF BORE HOLE SIZE ETC. ARE ELIMINATED. THE TEST ALSO PROVIDES A CONTINUOUS RECORD OF SOIL RESISTANCE WHICH GENERALLY TALLIES WITH THE N VALUES IN MOST SOILS.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:10:48 GMT</pubDate>
      <guid>https://trid.trb.org/View/119041</guid>
    </item>
    <item>
      <title>SOIL SAMPLING AND DRILLING NEAR FAIRBANKS, ALASKA. EQUIPMENT AND PROCEDURES</title>
      <link>https://trid.trb.org/View/118156</link>
      <description><![CDATA[SEVERAL TYPES OF ROTARY DRILLING MACHINES AND PERCUSSION TYPE DRILLING MACHINES WERE USED FOR SOILS EXPLORATIONS AT FAIRBANKS, ALASKA. VARIOUS TYPES OF CORING BARRELS IN SOIL SAMPLING TUBES WERE USED WITH THE MACHINES. SOILS EXPLORATIONS WERE CONDUCTED BY CORE DRILLING METHODS AND BY DRIVE SAMPLING METHODS IN THAWED AND FROZEN SILTY SOILS. TEMPERATURES OF THE FROZEN SOILS SAMPLED RANGED FROM 28F TO 31.5F IN THE PERMAFROST AND FROM 20F TO 27F IN THE ACTIVE LAYER. PENETRATION OF DRIVE SAMPLING DEVICES THROUGH THE FROZEN ACTIVE LAYER DURING WINTER OR EARLY SPRING IS MORE DIFFICULT THAN INTO THE UNDERLYING PERMAFROST DUE TO THE COLDER SOIL TEMPERATURES. RELATIVE MERITS OF THE VARIOUS DRILLS AND SAMPLERS ARE DISCUSSED. MANUAL DRIVING OF A SAMPLER FABRICATED FROM THIN WALL ELECTRICAL CONDUIT PROVED TO BE EFFECTIVE FOR SAMPLING FROZEN SOILS TO DEPTHS TO ABOUT TEN FEET. DRIVING OF SMALL DIAMETER SAMPLERS INTO FROZEN SOILS BY MEANS OF PNEUMATIC HAMMER AND RECOVERY BY TRUCK MOUNTED WINCHLINE WAS ALSO EFFECTIVE FOR SHALLOW EXPLORATIONS UP TO 10-15 FT DEPTH.]]></description>
      <pubDate>Sun, 15 Aug 2004 01:48:31 GMT</pubDate>
      <guid>https://trid.trb.org/View/118156</guid>
    </item>
    <item>
      <title>INFLUENCE OF HAMMER TYPE ON SPT RESULTS. DISCUSSION AND CLOSURE</title>
      <link>https://trid.trb.org/View/577506</link>
      <description><![CDATA[A discussion of a paper with the aforementioned title by E.E. Drumright, C.W. Pfingsten, and R.G. Lukas, published in this journal (Volume 122, Number 7, July 1996), is presented.  The discussers are strong proponents of the CME automatic hammer system, since it essentially eliminates the operator and a number of other potential sources of significant error in standard penetration testing (SPT), and recommend that other types of hammers and other hammer drop systems be retired in lieu of this automatic system.  The discussers also caution against using SPT for geotechnical sampling in fine-grained soils, especially soft and very soft clays.  Discussion is followed by closure from the authors.]]></description>
      <pubDate>Mon, 27 Oct 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/577506</guid>
    </item>
    <item>
      <title>INFLUENCE OF HAMMER TYPE ON SPT RESULTS. TECHNICAL NOTE</title>
      <link>https://trid.trb.org/View/464413</link>
      <description><![CDATA[The authors of this technical note examine a relatively uniform sand site in Chicago.  Standard penetration test (SPT) values from samples driven using a drilling rig instrumented with an automatic hammer were consistently lower than those from samples driven using a safety hammer.  The automatic hammer is much more efficient, delivering greater energy per blow.  The results, which were averaged at each depth, revealed that SPT values using an automatic sampling hammer were 75 percent of those recorded using the older-style safety hammer.  The trend was consistent throughout the sand profile.  This case agrees with the literature that indicates that SPT results using automatic hammers can be expected to be approximately two-thirds of those recorded using safety hammers.]]></description>
      <pubDate>Thu, 26 Sep 1996 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/464413</guid>
    </item>
    <item>
      <title>SOIL MECHANICS IN ENGINEERING PRACTICE</title>
      <link>https://trid.trb.org/View/124778</link>
      <description><![CDATA[CONTENTS: PHYSICAL PROPERTIES OF SOILS INDEX PROPERTIES OF SOILS HYDRAULIC AND MECHANICAL PROPERTIES OF SOILS DRAINAGE OF SOILS THEORETICAL SOIL MECHANICS HYDRAULICS OF SOILS PLASTIC EQUILIBRIUM IN SOILS SETTLEMENT AND CONTACT PRESSURE PROBLEMS OF DESIGN AND CONSTRUCTION SOIL EXPLORATION EARTH PRESSURE AND STABILITY OF SLOPES FOUNDATIONS SETTLEMENT DUE TO EXCEPTIONAL CAUSES DAMS AND DAM FOUNDATIONS PERFORMANCE OBSERVATIONS.]]></description>
      <pubDate>Fri, 24 Jun 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/124778</guid>
    </item>
    <item>
      <title>INTRODUCTION TO SOIL MECHANICS</title>
      <link>https://trid.trb.org/View/124722</link>
      <description><![CDATA[THIS BOOK PROVIDES A CLEAR-CUT ONE-SEMESTER TEXT FOR STUDENTS OF CIVIL ENGINEERING, ARCHITECTURE, ARCHITECTURAL ENGINEERING, AGRICULTURAL ENGINEERING, SOIL AND WATER MANAGEMENT AND ENGINEERING GEOLOGY, AND FOR JUNIOR COLLEGE AND TECHNICAL INSTITUTE STUDENTS WHO ARE BEGINNING THE STUDY OF SOIL MECHANICS. IT PROVIDES A FUNDAMENTAL KNOWLEDGE OF THE PROPERTIES OF VARIOUS SOILS AND THEIR BEHAVIOR IN RELATION TO FOUNDATIONS, PAVINGS, TUNNELS, AND STRUCTURES BUILT ON OR BENEATH THE GROUND. EXAMPLES ILLUSTRATE THE APPLICATION OF PRINCIPLES TO PRACTICAL PROBLEMS. AFTER AN HISTORICAL REVIEW, THE BOOK DEFINES THE VARIOUS SOIL TYPES AND DISCUSSES THEIR CHARACTERISTICS AT VARIOUS TEMPERATURES, UNDER VARIOUS LOADS, AND WITH AND WITHOUT THE PRESENCE OF WATER AND ICE. A CHAPTER ON SOIL EXPLORATION AND SOIL ENGINEERING SURVEYS IS ALSO INCLUDED. /AUTHOR/]]></description>
      <pubDate>Wed, 27 Apr 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/124722</guid>
    </item>
    <item>
      <title>SOILS AND FOUNDATIONS FOR ARCHITECTS AND ENGINEERS</title>
      <link>https://trid.trb.org/View/367496</link>
      <description><![CDATA[The purpose of this book is twofold:  (1) To serve as a textbook for architectural and engineering students in undergraduate and graduate level courses, and (2) To serve as a reference for architectural and engineering practitioners.  The following chapters are included:  (1) Classification of Soils; (2) Physical Properties of Soils; (3) Subsurface Soil Exploration; (4) Allowable Soil Bearing Pressure; (5) Spread Footings; (6) Piles, Piers and Caissons; (7) Lateral Earth Pressure; (8) Walls--Construction Details; (9) Walls--Design Considerations; (10) Soil Compaction; (11) Expansive Clay; and (12) Characteristics of Rock.  Appendices address the following:  (A) Earth Pressure Transfer at Cold Joint by Shear-Friction; (B) Earth Pressure Transfer at Cold Joint by Shear Key; (C) Pressure Distribution within a Soil Mass; (D) Basement Slab on Ground--Empirical Design; (E) Dowels for Load Transfer into Footings; and (F) Buoyancy.  An Index is provided.]]></description>
      <pubDate>Fri, 13 Aug 1993 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/367496</guid>
    </item>
    <item>
      <title>STRUCTURAL ENGINEERING HANDBOOK. THIRD EDITION</title>
      <link>https://trid.trb.org/View/375517</link>
      <description><![CDATA[This handbook provides engineers, architects, and students of civil engineering and architecture with an authoritative reference work on the planning and design of a variety of engineered structures.  Among the structures covered are industrial buildings, tall buildings, bridges, thin-shell structures, arches, suspension roofs, tanks for liquid storage, bins and silos for granular materials, retaining walls, bulkheads, steel transmission towers and poles, chimneys, and buried conduits.  Design in reinforced concrete, prestressed concrete, steel, composite construction, wood, aluminum, and masonry are covered.  Sections on soil mechanics, soil exploration, and foundations, and a comprehensive treatment of structural analysis, give the designer the information likely to be needed for these phases of design.  Earthquake-resistant design and design against fatigue, brittle fracture, and lamellar tearing are treated.  In this third edition every section has been reviewed, and many have been revised extensively.  The section on structural analysis has been completely rewritten so as to emphasize computer-based techniques, and the treatment of finite-element idealization of various types of structures, including recommendations as to suitable types of elements has been expanded.  The section on steel structural members has been expanded to include coverage of the new Load and Resistance Factor Design specification (LRFD).  Design of composite beams and girders according to the LRFD specification is also covered, and a detailed description and an example of the autostress design procedure for highway bridges is given.  There is also a new section on curved steel I-girder bridges.  A discussion of lamellar tearing and suggestions on how to avoid it has been added to the section on fatigue and brittle fracture.  Coverage of fatigue is updated, with comprehensive tables for determining the fatigue life of various types of joints.  The section on cold-formed steel members has been rewritten so as to conform to changes in the 1986 edition of the American Iron and Steel Institute specification, which is an extensive revision of earlier editions.  The sections on structural members of reinforced concrete, prestressed concrete, masonry, wood, and aluminum have also been revised to conform to the latest design specification.]]></description>
      <pubDate>Tue, 08 Jun 1993 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/375517</guid>
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