A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pile Group Efficiency of Micropiles Structure
Large number of experiments shows that pile spacing, pile diameter, pile number and soil characteristics are the main factors of pile groups' properties. With numerical simulation method, the project analyzes the pile group status as 2D geotechnical problem and calculates the influence of back row pile with the displacement of front row, and then derives empirical formula. The formula simplifies the group calculation to the single pile reduction of subgrade resistance. The results and calculation of existing methods are inosculating. The results show that the pile group efficiency can be neglected in rock slope. Pile spacing and soil internal friction angle φ is the main factors of the group efficiency. And it increases while pile spacing is increasing and the number of piles is decreasing. If the number of front and back row piles are the same, the empirical formula can get better results. While φ ≥ 35°, the deduction of soil resistance by cohesion strength can be neglect.
Pile Group Efficiency of Micropiles Structure
Large number of experiments shows that pile spacing, pile diameter, pile number and soil characteristics are the main factors of pile groups' properties. With numerical simulation method, the project analyzes the pile group status as 2D geotechnical problem and calculates the influence of back row pile with the displacement of front row, and then derives empirical formula. The formula simplifies the group calculation to the single pile reduction of subgrade resistance. The results and calculation of existing methods are inosculating. The results show that the pile group efficiency can be neglected in rock slope. Pile spacing and soil internal friction angle φ is the main factors of the group efficiency. And it increases while pile spacing is increasing and the number of piles is decreasing. If the number of front and back row piles are the same, the empirical formula can get better results. While φ ≥ 35°, the deduction of soil resistance by cohesion strength can be neglect.
Pile Group Efficiency of Micropiles Structure
Wang, Huanlong (author) / Zhou, Depei (author) / Ma, Tinglei (author)
Third International Conference on Transportation Engineering (ICTE) ; 2011 ; Chengdu, China
ICTE 2011 ; 2032-2037
2011-07-13
Conference paper
Electronic Resource
English
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