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Abstract:
Pile-sheet retaining wall is widely used in the cutting slope, embankment engineering and landslide treatment. The slab located at the behind of stabilizing piles, for example, is one of the most popular structural form in the engineering design, leading to some conservatism in the design. In order to investigate the transfer behavior of earth pressure and the regularities of distribution considering different setting location of retaining wall slab in the Pile-sheet retaining wall, three typical laboratory model tests (slab located in front of piles, slab located behind of piles and without slab) were conducted. The overall deformation and the fracture surface of the filling soil were observed, and the earth pressure on the stabilizing pile and retaining slab were also monitored. The experimental results showed that under the action of horizontal thrust, the retaining wall slab backfill of the three typical working conditions all generated an overall crack across the loading surface. The distribution of earth pressure on piles and retaining slab were 'spoon-shaped' and 'trapezoidal shaped' respectively. Compared to the case of slab located behind of piles, the earth pressure undertook by the stabilizing piles was much larger for the case of slab located front of piles, and the earth pressure undertook by the retaining slab was smaller instead. Soil arching effects of the filling soil was weakened because of the existence of retaining slab, especially for the case of retaining slab located behind of the piles. However, soil arcing still had the formation conditions and development space for the case of retaining slab located in front of the piles. In comparison, the slab located in front of piles could effectively reduce the earth pressure acting on the retaining slab because of the development of soil arching effect, and reduce the earth pressure acting on the retaining slab. Therefore, it was recommended to use the structure of slab located front of piles or the flange of pile. The research results can provide reference for the reasonable design of pile-sheet retaining wall. © 2019, Editorial Department of Advanced Engineering Sciences. All right reserved.
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Advanced Engineering Science
ISSN: 2096-3246
Year: 2019
Issue: 3
Volume: 51
Page: 77-84
Cited Count:
SCOPUS Cited Count: 2
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 4
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