Modeling damage to rigid pavements caused by subgrade pumping

被引：10

作者：

Bhatti, MA

Barlow, JA

Stoner, JW

机构：

[1] Dept. of Civ. and Envir. Engrg., Univ. of Iowa, Iowa City

[2] Stanley Consultants, Muscatine, IA

[3] Dept. of Civ. and Envir. Engrg., Univ. of Iowa, Iowa City, IA

来源：

JOURNAL OF TRANSPORTATION ENGINEERING-ASCE | 1996年 / 122卷 / 01期

关键词：

D O I：

10.1061/(ASCE)0733-947X(1996)122:1(12)

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The efficient utilization of construction and maintenance resources requires the ability to effectively predict and model subgrade pumping in rigid concrete pavements. A review of the evolution of a rigid pavement pumping model is presented in this paper, Extensions were made to an existing model to consider the effects of climate and drainage conditions, as well as soil composition on pumping magnitudes. Additional modifications permit the effect of nonconventional vehicle configurations to be considered in the calculation of pumping values. Finally, the process of calculating pumping volumes and distributing void areas was altered to provide a more realistic effect. This improved model allows proposed designs to be analyzed to determine optimum pavement characteristics. The model is implemented in a finite-element-based method for analysis of pavements that also includes the effects of concrete cracking and fatigue. Urgent need for experimental data on the size and growth of voids beneath a pavement slab is pointed out.

引用

页码：12 / 21

页数：10

共 16 条

[1] The AASHO Road Test, Report 3: Traffic Operations and Pavement Maintenance, (1962)
[2] The AASHO Road Test, Report 5: Pavement Research, (1962)
[3] AASHTO Guide for Design of Pavement Structures, (1986)
[4] AASHTO Guide for Design of Pavement Structures, (1993)
[5] Barlow J.A., Modeling Damage to Rigid Pavements Caused by Subgrade Pumping, (1994)
[6] Bhatti M.A., Stoner J.W., Hingtgen J.D., Simulation of dynamic loads from alternative vehicle configurations, Heavy Vehicle Systems, Int. J. Vehicle Design, (1995)
[7] Darter M.I., Becker J.M., Snyder M.B., Smith R.E., Portland cement concrete pavement evaluation system (COPES), NCHRP Rep. 277, (1985)
[8] Huang Y.H., Pavement Analysis and Design, (1993)
[9] Larralde J., Structural Analysis of Rigid Pavements with Pumping, (1984)
[10] Molinas Vega J.P.I., Nonlinear Fatigue Damage Accumulation for Concrete in Tension and Its Application to Concrete Pavement Systems, (1992)

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