Improvement of the Assignment Methodology of the Approach Embankment Design to Highway Structures in Difficult Conditions

4th International Conference on Advanced Engineering and Technology

Chistyy, Y.^1 ; Kuzakhmetova, E.^1 ; Fazilova, Z.^1 ; Tsukanova, O.^2

Department of Buildings and Constructions on Transport, Russian University of Transport (MIIT), Moscow, Russia^1

Invest Capital Consulting Ltd, Russia^2

关键词: Design issues;    Embankment design;    Highway structures;    Lower bounds;    Road structures;    Soil compressibilities;    Stabilizing agents;    Weak subgrades;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/317/1/012060/pdf
DOI  :  10.1088/1757-899X/317/1/012060

来源: IOP

【 摘 要 】

Design issues of junction of bridges and overhead road with approach embankment are studied. The reasons for the formation of deformations in the road structure are indicated. Activities to ensure sustainability and acceleration of the shrinkage of a weak subgrade approach embankment are listed. The necessity of taking into account the man-made impact of the approach embankment on the subgrade behavior is proved. Modern stabilizing agents to improve the properties of used soils in the embankment and the subgrade are suggested. Clarified methodology for determining an active zone of compression in the subgrade under load from the weight of the embankment is described. As an additional condition to the existing methodology for establishing the lower bound of the active zone of compression it is offered to accept the accuracy of evaluation of soil compressibility and determine shrinkage.