Loading rate method for pile response in clay
Journal Article
·
· J. Geotech. Eng. Div., Am. Soc. Civ. Eng.; (United States)
A method is proposed to predict the behavior of single piles in cohesive soil subjected to vertical loads applied at various rates. The elementary simple shear model is made rate-dependent by introducing the time raised to a negative power n. This viscous exponent n is shown to vary from 0.02-0.08 with a 0.05 average. Correlations with undrained shear strength, water content, plasticity, the liquidity index and overconsolidation ratio are shown based on 152 laboratory tests. Integration of the elementary model leads to rate-dependent elastic-plastic or hyperbolic load transfer curves. A program to predict the head load-head movement response of the pile using these rate-dependent loadtransfer curves is described. The validity of the method is first addressed by examining the physical reasons for the rate-dependent properties of clays, then by using the results of 62 rate-dependent pile load tests and by examining a series of applications of the new method and, finally, by presenting the results of a parametric study.
- Research Organization:
- Civ. Engrg. Dept., Texas AandM Univ., College Station, TX
- OSTI ID:
- 6405749
- Journal Information:
- J. Geotech. Eng. Div., Am. Soc. Civ. Eng.; (United States), Journal Name: J. Geotech. Eng. Div., Am. Soc. Civ. Eng.; (United States) Vol. 111:3; ISSN AJGEB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
BENCH-SCALE EXPERIMENTS
CALCULATION METHODS
CLAYS
COMPUTERIZED SIMULATION
DYNAMIC LOADS
FOUNDATIONS
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
MECHANICS
MOISTURE
OFFSHORE PLATFORMS
PLASTICITY
SHEAR
SIMULATION
SOIL MECHANICS
SOIL-STRUCTURE INTERACTIONS
STRESS ANALYSIS
SUPPORTS
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
BENCH-SCALE EXPERIMENTS
CALCULATION METHODS
CLAYS
COMPUTERIZED SIMULATION
DYNAMIC LOADS
FOUNDATIONS
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
MECHANICS
MOISTURE
OFFSHORE PLATFORMS
PLASTICITY
SHEAR
SIMULATION
SOIL MECHANICS
SOIL-STRUCTURE INTERACTIONS
STRESS ANALYSIS
SUPPORTS