Pavement Design in Takalimakan Desert
Publication: Journal of Transportation Engineering
Volume 127, Issue 2
Abstract
The design method for pavements in the Takalimakan desert was proposed through the investigation of test roads and theoretical analysis. The function of geotextile in pavement structures is analyzed by the shear lag model, with a result that the shear bearing capacity of geotextile is proportional to its tensile modulus and the second derivative of its tensile deformation. Combining the layer-peeling method, a bearing plate method, and modulus back—calculation, the modulus of resilience of each layer in the pavement structure is determined. By means of multilayer elastic theory, the influence of contact conditions in the pavement on the tensile stresses and displacement is quantitatively analyzed. Stresses for unbonded wearing course and gravel-base course increase by more than four times. Change of contact conditions has little effect on the surface deflection. Therefore, the variation of surface deflection cannot reflect the shear instability between subbase and subgrade. Direct shear testing must be utilized to guarantee the shear stability in the pavement structure.
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References
1.
Chen, Z. D., Zheng, C. C., and Dai, J. L. ( 1998). “Shear stability analysis for pavement structure of desert highway.” Proc., 3rd Int. Conf. on Rd. and Airfield Pavement Technol., Huajie Int. Publ., Beijing, Vol. 1, 538–533.
2.
Feng, J., and Zheng, C. C. ( 1999). “Experimental on the shear stability of pavement in Takalimakan desert.” Chin. J. Yunnan Comm., Vol. 15 supplement, 78–85.
3.
Institute of Highway Planning and Design (IHPD). ( 1997). Specifications for design of highway asphalt pavement, People's Communication Press, Beijing.
4.
Megson, T. H. G. ( 1972). Aircraft structures, Edward Arnold Ltd., London.
5.
Zhu, Z. H., Wang, B. G., and Gao, D. Z. ( 1985). Stress analysis in pavement structure, People's Communication Press, Beijing.
Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 127 • Issue 2 • April 2001
Pages: 112 - 115
History
Received: Jul 30, 1997
Published online: Apr 1, 2001
Published in print: Apr 2001
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