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A platform for research: civil engineering, architecture and urbanism
Numerical analysis method of single-pile horizontal bearing character of seasonally frozen soil region
The invention discloses a numerical analysis method of the single-pile horizontal bearing character of a seasonally frozen soil region. An influence rule of loess foundation horizontally loaded pile bearing capacity by a frozen soil layer of the seasonally frozen soil region is researched through finite element numerical simulation. Researches obtain a result that single-pile horizontal bearing capacity is obviously affected by the thickness of the frozen soil layer and a pile diameter and is increased along with the increase of the thickness of the frozen soil layer, but increase amplitude is reduced; the single-pile horizontal bearing capacity is approximately linearly increased along with the increase of the pile diameter, and the greater the thickness of the frozen soil layer is, the greater the increase amplitude of the single-pile horizontal bearing capacity along with the increase of the pile diameter is. The analysis method proposes a horizontally loaded pile bearing capacity characteristic value correction coefficient based on deformation control for different frozen soil layer thicknesses and different pile diameters. Furthermore, on the basis of a calculation result, the correction coefficient is fit to obtain a characteristic value correction coefficient expression of the loess foundation horizontally loaded pile bearing capacity, and the characteristic value correction coefficient expression can provide references for detecting the single-pile horizontal bearing capacity in winter.
Numerical analysis method of single-pile horizontal bearing character of seasonally frozen soil region
The invention discloses a numerical analysis method of the single-pile horizontal bearing character of a seasonally frozen soil region. An influence rule of loess foundation horizontally loaded pile bearing capacity by a frozen soil layer of the seasonally frozen soil region is researched through finite element numerical simulation. Researches obtain a result that single-pile horizontal bearing capacity is obviously affected by the thickness of the frozen soil layer and a pile diameter and is increased along with the increase of the thickness of the frozen soil layer, but increase amplitude is reduced; the single-pile horizontal bearing capacity is approximately linearly increased along with the increase of the pile diameter, and the greater the thickness of the frozen soil layer is, the greater the increase amplitude of the single-pile horizontal bearing capacity along with the increase of the pile diameter is. The analysis method proposes a horizontally loaded pile bearing capacity characteristic value correction coefficient based on deformation control for different frozen soil layer thicknesses and different pile diameters. Furthermore, on the basis of a calculation result, the correction coefficient is fit to obtain a characteristic value correction coefficient expression of the loess foundation horizontally loaded pile bearing capacity, and the characteristic value correction coefficient expression can provide references for detecting the single-pile horizontal bearing capacity in winter.
Numerical analysis method of single-pile horizontal bearing character of seasonally frozen soil region
2015-08-19
Patent
Electronic Resource
English
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