Abstract
A series of full-scale micro piles was installed at a site in mid-Missouri for a load-test program to study the effect of combined loading. The micro piles were installed with a 178-mm (7-in.) outer diameter steel casing to a depth of 4.6 m (15 ft) and a bond zone length of 3.0 m (10 ft). The surficial soils at the site consisted of stiff-to-hard clay underlain by weathered silty/sandy shale where the bond zone of the micro piles was located. The load-test program included axial, lateral, and combined-load tests. The ultimate axial and lateral capacity of the piles was initially determined. A series of combined-load tests was then performed by applying a static axial load and incrementally increasing the lateral load on the micro piles. The pile-head load-deformation response and distribution of load and bending moment with depth were measured with concrete-embedded strain gauges along the micro pile length. © 2014 American Society of Civil Engineers.
Recommended Citation
K. A. Kershaw and R. Luna, "Full-scale Field Testing of Micropiles in Stiff Clay Subjected to Combined Axial and Lateral Loads," Journal of Geotechnical and Geoenvironmental Engineering, vol. 140, no. 1, pp. 255 - 261, American Society of Civil Engineers, Jan 2014.
The definitive version is available at https://doi.org/10.1061/(ASCE)GT.1943-5606.0000968
Department(s)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Combined loading; Lateral behavior; Micropile; Pile-load test
International Standard Serial Number (ISSN)
1090-0241
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 American Society of Civil Engineers, All rights reserved.
Publication Date
01 Jan 2014
