Bearing Pressure?SPT Correlations for Expanded Base Piles in Sand
Design of enlarged base piles is usually carried out using correlations between SPT N values and point resistance. The results of full scale load tests are used to show that base resistance...
Contribution of Soil Freeze to Pile Capacity
In order to investigate the magnitude and rate of increase in load capacity for piles installed in clayey soils, a series of load tests were performed at various intervals of time following...
Owner and Designer Advantages Derived from Use of Construction Consultant
There are two significant ways that an experienced construction consultant can assist both the owner and the designer/engineer in obtaining an economical and practical structure. Constructibility...
Some Observations on Undrained Side Resistance of Drilled Shafts
A data base of 106 field load tests (65 in uplift and 41 in compression) is used to evaluate the undrained side resistance of drilled shaft foundations. The total stress or alpha (?) method...
New Design Method for Drilled Shafts from Common Soil and Rock Tests
A method is presented by which the compressive capacity and load-settlement characteristics of large drilled shafts can be computed from commonly executed soil and rock tests. The method...
Performance of High Capacity Caissons Founded on Decomposed Rock
The results of six load tests on large diameter caissons founded on decomposed rock are presented and analyzed. The caissons ranged from 1.5 m to 2.5 m in diameter and were 20 m to 23...
Load Tests on Bored Friction Piles in Clay
For the first time in Boston, Massachusetts, U.S.A., uncased bored friction piles in clay were used to support a six-story residential structure over a 60- to 75-foot (1.83 to 22.9 m)...
Skin Friction Load Test for Caissons in Residual Soils
Results of a load test on a drilled pier are presented. The test was performed to measure only skin friction of a 36 inch (0.91 m) diameter shaft without support at the end. The load test...
Full Scale Caisson Load Test for the Milwaukee Center
Top-down procedures were proposed to construct four basement levels for a major high-rise building development in Milwaukee, Wisconsin. Drilled caisson foundations were the preferred means...
Drilled Shafts?A Database Approach
A database of 43 drilled shaft load tests of high quality has been developed to study parameters that affect the axial behavior of drilled shafts and methods of analysis to predict axial...
Caissons in Uplift in Sandy Soils
This paper describes the results of 10 full scale pullout tests conducted on short rigid caissons. Diameters ranged from 30 to 34 inches (760 to 860 mm) and lengths from 7 to 10 feet (2.1...
A Lateral Load Test on Seven Foot Diameter Caissons
Seven foot (2.1 m) diameter caissons (drilled shafts) were designed to support a mainline eastbound bridge and an off-ramp of Interstate Highway 70 in Glenwood Canyon, Colorado. A lateral...
Interpretation of Load Tests on Drilled Shafts?Part 1: Axial Compression
Existing interpretation methods for axial compression load tests are reviewed critically, and a qualitative and quantitative comparison is made for selected methods. A simplified method,...
Interpretation of Load Tests on Drilled Shafts?Part 2: Axial Uplift
Existing interpretation methods for axial uplift load tests are reviewed critically, and a qualitative and quantitative comparison is made for selected methods. A new method, which fulfills...
Interpretation of Load Tests and Drilled Shafts?Part 3: Lateral and Moment
Existing interpretation methods for lateral and moment load tests are reviewed critically, and a qualitative and quantitative comparison is made for selected methods. A new method is proposed...
Nondestructive Testing of Deep Foundations with Sonic Methods
Nondestructive testing and evaluation (NDT&E) of deep foundations with three sonic methods is discussed. Case history investigations described include test records from drilled...
Geophysical and Nuclear Methods for Non-Destructive Evaluation of Caissons
Non-destructive testing techniques were used to confirm the concrete integrity on the caisson foundations for the 45-story Ohio Corporate Headquarters building in Cleveland, Ohio. The...
Bearing Capacity of Shallow Strip Foundation on Strong Clay Underlain by Weak Clay
Laboratory model test results for the ultimate bearing capacity of shallow strip foundations supported by a stiff clay layer underlain by a weaker clay layer have been presented. The model...
Performance of Different Retention Systems in Similar Soils
Performance behaviour of three deep braced excavations in a similar soil profile, in the Chicago area is described. At each site, different bracing systems were utilized. Methods used...
Interpretation of Instrumented Driven Steel Pipe Piles
This paper presents the results of a series of studies on the behavior of driven close-ended steel pipe piles. Extensive field explorations and geotechnical analyses have been carried...
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