Vertical Stability of Anchored Concrete Soldier-Pile Walls in Clay

• Type: Article in International Scientific Journal
• Date: 2004

Authors

Nuno M. C. Guerra (Author) Other; António Silva Cardoso (Author) Other; Manuel Matos Fernandes (Author) FEUP; António Gomes Correia (Author) Other

Journal

Title: Journal of geotechnical and geoenvironmental engineering

Vol. 130 No. 12

Pages: 1259-1270

ISSN: 1090-0241

Publisher: ASCE-AMER SOC CIVIL ENGINEERS

Scientific classification

FOS: Engineering and technology > Civil engineering

Other information

DOI: 10.1061/(ASCE)1090-0241(2004)130:12(1259)

Abstract (EN): The problem of vertical stability in flexible anchored retaining walls is analyzed and the pattern of the behavior under conditions of poor vertical support is described, on the basis of results from case histories, small-scale tests, and numerical modeling. The possibility of shear stress mobilization in the soil-to-wall interface of anchored concrete soldier-pile retaining walls is discussed. A finite element procedure to model excavations supported by soldier-pile retaining walls is described and applied to a numerical case study. Finite element analyses are performed, emphasizing the consequences of vertical instability due to buckling of the soldier piles and the role of interface resistance in vertical equilibrium. The understanding of some results of the numerical analyses, which are highly influenced by the complexity of the interaction between the different parts of the structure, is obtained by reassessing the vertical equilibrium issue in the light of limit analysis. This approach makes it possible to estimate the pile resistance corresponding to the limit situation of excavation collapse. The finite element model is used to confirm this resistance. Some conclusions are drawn. © ASCE.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12