00163009

Component

http://onlinepubs.trb.org...s/trr/1976/616/616-022.pdf

https://scholar.google.co...nlin&publication_year=1976

In order to measure the actual side shear developed and to provide some insight into the mechanism controlling side shear in piles driven in oversized pilot holes, each of 3 concrete test piles were instrumented in the casting bed with full-bridge electronic-resistance-embedment strain-gauge circuits (transducers) located near its top and bottom. The mean diameter of the holes was estimated to be 48 cm (7.5 cm greater than the width of the piles). Two tests were conducted on each pile: (a) a maintained-load proof test to twice the design load, and (b) a rapid-load test to approximately 3.5 times the design load. The mean pile movement was calculated for each butt settlement reading, and the behavior of the piles was analyzed on the basis of the type of soil into which it was driven. An equation is presented which describes the development of the ultimate side shear for a pile driven into a clearly cohesionless soil profile. Calculation of earth pressure, and the ultimate skin friction are also discussed. The calculation of side shear and ultimate skin friction for a pile in predominantly clay profiles and a pile in stratified clay and sand are also outlined.

Publication of this paper sponsored by Committee on Foundations of Bridges and Other Structures. 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

01411467

pp 95-97

1976

Transportation Research Record

0309025958

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Figures (3)

Boreholes; Clay; Earth pressure; Granular soils; Instrumentation; Sand; Shear strength; Skin resistance; Test piles

Bridges and other structures; Geotechnology; Highways

TRIS, TRB

Oct 13 1977 12:00AM

• ANALYSIS OF SUBGRADE RUTTING IN FLEXIBLE AIRFIELD PAVEMENTS (ABRIDGEMENT)
• ANALYZING FIELD DATA FOR RAPID SETTLEMENTS (ABRIDGEMENT)
• CONSOLIDATION BEHAVIOR OF STRUCTURAL FILLS ON HACKENSACK VARVED CLAYS
• DESIGN APPROACH FOR CIRCULAR BURIED CONDUITS (ABRIDGEMENT)
• DESIGN OF DRILLED SHAFTS SUPPORTING HIGHWAY SIGNS
• EFFECTS OF REPEATED TENSILE STRESSES ON THE RESILIENT PROPERTIES OF ASPHALT MIXTURES (ABRIDGEMENT)
• EVALUATION OF PLASTIC UNDERDRAIN (ABRIDGEMENT)
• INFILTRATION OF WATER THROUGH THE PAVEMENT SURFACE (ABRIDGEMENT)
• INFLUENCE OF THE INTERFACE CONDITION ON STRESS DISTRIBUTION IN A LAYERED SYSTEM (ABRIDGEMENT)
• LABORATORY TESTING FOR USE IN THE PREDICTION OF RUTTING IN ASPHALT PAVEMENTS
• LABORATORY VERIFICATION OF A MECHANISTIC SUBGRADE RUTTING MODEL (ABRIDGEMENT)
• PERFORMANCE OF A THIN METAL RETAINING WALL WITH MULTIPLE ANCHORAGE
• PRACTICAL APPROACH TO THE PREDICTION OF RUTTING IN ASPHALT PAVEMENTS: THE SHELL METHOD
• PREDICTING PERMANENT DEFORMATION OF ASPHALT CONCRETE FROM CREEP TESTS (ABRIDGEMENT)
• PREDICTING PILE CAPACITIES USING DUTCH CONE PENETROMETER DATA (ABRIDGEMENT)
• PRESSURE-TIME RELATIONSHIP IN FROZEN COHESIVE SOILS UNDER LATERAL PRESSURE
• PROCEDURE FOR PREDICTING RUT DEPTHS IN FLEXIBLE PAVEMENTS
• RUT DEPTH PERCEPTION
• RUT DEPTH PREDICTION AND TEST PROCEDURES FOR PERMANENT DEFORMATION IN ASPHALT PAVEMENTS (ABRIDGEMENT)
• RUTTING PREDICTION IN ASPHALT CONCRETE PAVEMENTS
• SYSTEM FOR SUMMATION OF LOAD-INDUCED PAVEMENT STRAINS TO PRODUCE A RUT PROFILE (ABRIDGEMENT)
• THERMAL SUSCEPTIBILITY OF BASE COURSE MATERIAL: ITS CAUSE AND ITS EFFECT ON PAVEMENT CRACKING (ABRIDGEMENT)
• UNCERTAINITY ANALYSIS OF SETTLEMENT RATE (ABRIDGEMENT)
• VERTICAL DRAINS FOR HIGHWAY EMBANKMENTS IN KANSAS (ABRIDGEMENT)