Location
St. Louis, Missouri
Date
02 Jun 1993, 2:30 pm - 5:00 pm
Abstract
The design and performance of a surcharged highway embankment across a 45 metre thick soft soil deposit is described. Using theoretical soil mechanics concepts it was predicted that the long-term stability necessitated the use of berms despite the fact that an undrained strength analysis based on in situ vane tests predicted a reasonable factor of safety. This fact is supported by the performance of an existing road. Consideration of both theoretical soil mechanics concepts and practical considerations suggested that the berms should be construction prior to the central fill and from their outer limits towards the centre. The central fill was to be placed in thickness and in stages rather than to grades. Eighteen piezometers, 12 settlement tips and 24 surface settlement plates were used to measure the performance.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
3rd Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1993 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Raymond, Gerald P., "Performance of a Low Embankment on a Soft Soil Deposit" (1993). International Conference on Case Histories in Geotechnical Engineering. 22.
https://scholarsmine.mst.edu/icchge/3icchge/3icchge-session02/22
Performance of a Low Embankment on a Soft Soil Deposit
St. Louis, Missouri
The design and performance of a surcharged highway embankment across a 45 metre thick soft soil deposit is described. Using theoretical soil mechanics concepts it was predicted that the long-term stability necessitated the use of berms despite the fact that an undrained strength analysis based on in situ vane tests predicted a reasonable factor of safety. This fact is supported by the performance of an existing road. Consideration of both theoretical soil mechanics concepts and practical considerations suggested that the berms should be construction prior to the central fill and from their outer limits towards the centre. The central fill was to be placed in thickness and in stages rather than to grades. Eighteen piezometers, 12 settlement tips and 24 surface settlement plates were used to measure the performance.
