Highway Embankment on Soft Soils Case Study and Lessons Learned

Timothy D. Stark, Perry J. Ricciardi, Ryan D. Sisk

Research output: Contribution to conferencePaper

Abstract

This case study describes failure of an interstate connecting-ramp embankment during construction and investigates performance of the prefabricated vertical drains (PVDs) installed to accelerate consolidation of the weak embankment foundation soils. The weak, fine-grained foundation soil experienced less drainage, and thus less consolidation and strength gain, than expected via the PVDs because of an overestimate of the design horizontal coefficient of consolidation. The inverse analyses show the failure was caused by lower than expected shear strength of the foundation soils and an over estimate of the compacted embankment shear strength. As a result, recommendations to estimate horizontal consolidation properties for PVD design and embankment shear strength parameters or future projects are presented.

Original languageEnglish (US)
Pages245-256
Number of pages12
DOIs
StatePublished - Jan 1 2018
Event3rd International Foundation Congress and Equipment Expo 2018: Recent Developments in Geotechnical Engineering Practice, IFCEE 2018 - Orlando, United States
Duration: Mar 5 2018Mar 10 2018

Other

Other3rd International Foundation Congress and Equipment Expo 2018: Recent Developments in Geotechnical Engineering Practice, IFCEE 2018
CountryUnited States
CityOrlando
Period3/5/183/10/18

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering

Fingerprint Dive into the research topics of 'Highway Embankment on Soft Soils Case Study and Lessons Learned'. Together they form a unique fingerprint.

  • Cite this

    Stark, T. D., Ricciardi, P. J., & Sisk, R. D. (2018). Highway Embankment on Soft Soils Case Study and Lessons Learned. 245-256. Paper presented at 3rd International Foundation Congress and Equipment Expo 2018: Recent Developments in Geotechnical Engineering Practice, IFCEE 2018, Orlando, United States. https://doi.org/10.1061/9780784481622.020