Field Lateral Load Tests on Slope-Stabilization Grouted Pipe Pile Groups
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 141, Issue 4
Abstract
A new type of slope-stabilization structure has been developed in recent years, which uses a grouted pipe pile group and pile-head connection beams to form a pile-soil frame structure. In this research, field lateral loading tests on one and two grouted steel-pipe pile groups were carried out at a highway slope-stabilization site. The tests simulated the performance of slope-stabilization pile groups subject to lateral soil movements caused by surcharge fill loading behind the pile groups. Through the measurements of pile and soil displacements, pile strains, and earth pressures, the loading behavior of these grouted steel-pipe pile groups was studied, taking the number of pile rows, row spacing, and pile spacing as variables. At the same pile spacing and row spacing, the maximum displacement of a pile group was only 35–55% of that of the pile group. The deformations of the soil between the piles were approximately the same as those of the piles. The earth pressure was the largest on the rear piles and smallest on the front piles. The maximum bending moment of the rear piles occurred near the pile head, while the maximum bending moments of the middle and front piles were near the sliding surface of the test slope.
Get full access to this article
View all available purchase options and get full access to this article.
References
Brown, D., Reese, L., and O’Neill, M. (1987). “Cyclic lateral loading of a large-scale pile group.” J. Geotech. Eng., 1326–1343.
Brown, D. A., Morrison, C., and Reese, L. C. (1988). “Lateral load behavior of pile group in sand.” J. Geotech. Eng., 1261–1276.
Bruce, D. A., Cadden, A. W., and Sabatini, P. J. (2005). “Practical advice for foundation design—Micropiles for structural support.” Contemporary Issues in Foundation Engineering, Geotechnical Special Publication No. 131, ASCE, Reston, VA, 1–25.
Chen, L. T., and Poulos, H. G. (1997). “Piles subjected to lateral soil movements.” J. Geotech. Geoenviron. Eng., 802–811.
Fan, H., and Liang, R. (2013). “Performance-based reliability analysis of laterally loaded drilled shafts.” J. Geotech. Geoenviron. Eng., 2020–2027.
Galli, A., and di Prisco, C. (2013). “Displacement-based design procedure for slope-stabilizing piles.” Can. Geotech. J., 50(1), 41–53.
Hassiotis, S., Chameau, J., and Gunaratne, M. (1997). “Design method for stabilization of slopes with piles.” J. Geotech. Geoenviron. Eng., 314–323.
Kourkoulis, R., Gelagoti, F., Anastasopoulos, I., and Gazetas, G. (2011). “Slope stabilizing piles and pile-groups: Parametric study and design insights.” J. Geotech. Geoenviron. Eng., 663–677.
Kourkoulis, R., Gelagoti, F., Anastasopoulos, I., and Gazetas, G. (2012). “Hybrid method for analysis and design of slope stabilizing piles.” J. Geotech. Geoenviron. Eng., 1–14.
McVay, M., Zhang, L. M., Molnit, T., and Lai, P. (1998). “Centrifuge testing of large laterally loaded pile groups in sands.” J. Geotech. Geoenviron. Eng, 1016–1026.
Ministry of Railways. (2006). “Code for design of retaining engineering structures of railway subgrade.”, China Railway Publishing House, Beijing.
Ng, C. W. W., Zhang, L. M., and Nip, C. N. (2001). “Response of laterally loaded large-diameter bored pile groups.” J. Geotech. Geoenviron. Eng., 658–669.
Plaxis 1.5 [Computer software]. Delft, Netherlands, Plaxis BV.
Poulos, H. G., and Chen, L. T. (1997). “Pile response due to excavation-induced lateral soil movement.” J. Geotech. Geoenviron. Eng., 94–99.
Rollins, K. M., Olsen, R. J., Egbert, J. J., Jensen, D. H., Olsen, K. G., and Garrett, B. H. (2006). “Pile spacing effects on lateral pile group behavior: Load tests.” J. Geotech. Geoenviron. Eng., 1262–1271.
Rollins, K. M., Peterson, K. T., and Weaver, T. J. (1998). “Lateral load behavior of full-scale pile group in clay.” J. Geotech. Geoenviron. Eng., 468–478.
Ruesta, P. F., and Townsend, F. C. (1997). “Evaluation of laterally loaded pile group at Roosevelt Bridge.” J. Geotech. Geoenviron. Eng., 1153–1161.
Sun, S. W., Zhu, B. Z., and Ma, H. M. (2009). “Model tests on anti-sliding mechanism of micropile groups and anti-sliding piles.” Chinese J. Geotech. Eng., 31(10), 1564–1570.
Yamasaki, K., Strom, R. W., Gunsolus, R. A., and Vessely, D. A. (2013). “Long-term performance of landslide shear piles.” Geo-Congress 2013: Stability and Performance of Slopes and Embankments III, ASCE, Reston, VA, 1936–1950.
Yamin, M., and Liang, R. Y. (2010). “Limiting equilibrium method for slope/drilled shaft system.” Int. J. Numer. Anal. Method. Geomech., 34(10), 1063–1075.
Yan, J. K., Yin, Y. P., and Men, Y. M. (2009). “Model test study on landslide reinforcement with single micropile.” J. Eng. Geol., 17(5), 669–674 (in Chinese).
Zhang, L. M., McVay, M. C., and Lai, P. (1999). “Numerical analysis of laterally loaded 3 to pile groups in sands.” J. Geotech. Geoenviron. Eng., 936–946.
Information & Authors
Information
Published In
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Sep 21, 2013
Accepted: Sep 19, 2014
Published online: Dec 22, 2014
Published in print: Apr 1, 2015
Discussion open until: May 22, 2015
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.