Reinforcement of weak seasonally freezing soils at road consructing by double-cone hollow pile method

International Conference on Construction, Architecture and Technosphere Safety 2018

土木建筑工程

Yushkov, B.S.^1 ; Degtyar, A.A.^1 ; Shakhova, A.B.^2

Department of Highways Roads and Bridges, Perm National Research Polytechnic University, Komsomolsky Avenue, 29, Perm

614990, Russia^1

Department of Design, Graphics and Descriptive Geometry, Perm National Research Polytechnic University, Komsomolsky Avenue, 29, Perm

614990, Russia^2

关键词: Method of calculation;    Northern regions;    Reinforcement method;    Russian federation;    Soil compaction;    Strip foundation;    Structural strength;    Traffic loads;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/451/1/012044/pdf
DOI  :  10.1088/1757-899X/451/1/012044

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The article deals with the reinforcement method of weak seasonally freezing soils in subgrade base by using double-cone hollow piles, tridimensional geogrid, geotextile for roads in the northern regions of the Russian Federation. The method of calculating the road base in the form of pile strip foundation of double-cone hollow piles reinforced by tridimensional geogrid and geotextile on weak heaving soils taking into account traffic loads and weight of subgrade is considered. The developed method of calculation is based on the formation of soil compaction zones in the near-pile space as a result of pile driving into the ground, which leads to an increase in the structural strength of the weak soil, and also takes the arch effect that occurs in the soil between adjacent pile heads.