|Table of Contents|

Study on Reasonable Plate Spacing of Oblique Sheet-pile Wall Considering Soil Arching Effect(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2018年06期
Page:
111-117
Research Field:
Publishing date:

Info

Title:
Study on Reasonable Plate Spacing of Oblique Sheet-pile Wall Considering Soil Arching Effect
Author(s):
QU Jun-tong;  WU Shao-shan;  XU Zhan-feng;  CHEN Hui-jun
(School of Architecture and Urban Planning, Yunnan University, Kunming 650504, Yunnan, China)
Keywords:
sheet-pile wall;  soil arch effect;  earth pressure;  reasonable plate spacing;  numerical simulation
PACS:
U417.1
DOI:
-
Abstract:
Combined with the practical engineering of a highway slope, the three-dimensional numerical simulation analysis was carried out by ABAQUS finite element software. From the angle of soil arch effect, the variation law of post-plate horizontal earth pressure, post-plate vertical earth pressure and inter-plate soil arch strength along the transverse direction of oblique wall with 0.2 times plate width, 0.3 times plate width, 0.4 times plate width and 0.5 times plate width were studied. Combining the practicability and safety of structure, the reasonable range of plate spacing, the position of the arch foot of the inter-plate soil arch and the relation of vault parameters were put forward. The results show that the oblique pile-sheet wall has a vertical soil arch between the adjacent plates in the middle and lower part of the cantilever section with the bottom of the plate as the arch, and the post-plate earth pressure is serrated with depth. The horizontal earth pressure is less than the classical Coulomb active earth pressure and the vertical stress is greater than the weight stress of the soil. The arch foot of the inter-plate soil arch is located at bottom of the oblique plate, and the local reinforcement should be carried out in the design and construction to improve the designed strength. When the plate spacing is 0.3 times-0.4 times of the plate width, the soil arch effect is obvious and the post-plate soil pressure is small, so the reasonable spacing of the slanted pile plate wall is 0.3 times to 0.4 times of the plate width. The conclusion is helpful for further optimization design of oblique sheet-pile wall structure, and will has significant economic and social benefits.

References:


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Last Update: 2018-11-22