Alternative Title
Paper No. 1.49
Location
St. Louis, Missouri
Date
10 Mar 1998, 9:00 am - 12:00 pm
Abstract
The Evripos crossing project (Greece) consisted of: The main cable stayed high bridge with three spans (90m- 215m- 90m), two approach bridges with four spans (36m and 39m) and two embankments on soft marine deposits. The pylons of the main bridge were founded on cast in situ R.C. piles, 120cm diameter, embedded in ophiolithic rock or cretaceous limestones, base and skin grouted. Limestone cavities were identified by continuous recording of the borehole drilling using the Enpasol technique. A fully instrumented pile was tested for vertical and lateral loading. For the foundation of the two end piers of the high bridge on limestone, micropiles in tension were used to resist the uplift forces. For the stability of the approach embankment in St. Stefanos Bay, on a 15.0m thick very soft to soft marine clay, ground improvement techniques were used, including excavation and replacement by rockfill of the surfacial (3.50m), very soft layer, installation of prefabricated vertical drains and preloading. The performance of the embankment was monitored during construction. Results and conclusions on the instrumentation are presented.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
4th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1998 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
Sotiropoulos, Elias and Alkalais, Elias, "Foundation Problems of a Cable Stayed High Bridge and Its Approaches" (1998). International Conference on Case Histories in Geotechnical Engineering. 51.
https://scholarsmine.mst.edu/icchge/4icchge/4icchge-session01/51
Foundation Problems of a Cable Stayed High Bridge and Its Approaches
St. Louis, Missouri
The Evripos crossing project (Greece) consisted of: The main cable stayed high bridge with three spans (90m- 215m- 90m), two approach bridges with four spans (36m and 39m) and two embankments on soft marine deposits. The pylons of the main bridge were founded on cast in situ R.C. piles, 120cm diameter, embedded in ophiolithic rock or cretaceous limestones, base and skin grouted. Limestone cavities were identified by continuous recording of the borehole drilling using the Enpasol technique. A fully instrumented pile was tested for vertical and lateral loading. For the foundation of the two end piers of the high bridge on limestone, micropiles in tension were used to resist the uplift forces. For the stability of the approach embankment in St. Stefanos Bay, on a 15.0m thick very soft to soft marine clay, ground improvement techniques were used, including excavation and replacement by rockfill of the surfacial (3.50m), very soft layer, installation of prefabricated vertical drains and preloading. The performance of the embankment was monitored during construction. Results and conclusions on the instrumentation are presented.
