A case study of construction-related ground movements in providence silt

Document Type

Conference Proceeding

Date of Original Version



In Providence, Rhode Island, there have been several instances where construction activities such as pile driving or excavation have caused significant movements of adjacent ground and nearby structures founded on non-plastic silts. This paper presents a case study documenting substantial and unusual movements of a braced excavation that were observed during construction of a pile-supported sewer structure. Both inclinometer and piezometer data are presented. The piezometer data suggest that the unusual ground movements were likely attributed to excess pore pressures that were generated during driving of H-piles at the bottom of the excavation. The field instrumentation data will be particularly useful in future modeling efforts to better understand the performance of foundations and braced excavations in the Providence silts. © 2007 ASCE.

Publication Title, e.g., Journal

Geotechnical Special Publication