Location
St. Louis, Missouri
Date
02 Jun 1993, 9:00 am - 12:00 pm
Abstract
Piles in Bombay region are bored cast-in-situ installed by bailor and chisel boring or direct mud circulation with drop chisels. In weak and weathered rock interpretation of core drilling, SPT, CPT, pressuremeter tests are subject to several limitations, hence design parameters based on conventional soil investigation methods are subject to uncertainties. The past practice has been empirical and the designers relied mainly on load tests and failures have occurred in areas subject to considerable variation in rock characteristics and large depth of soft clay overburden. Recently improvements in investigation and design methodology have been introduced based on postulated relations of design parameters with energy inputs in chisel penetration. Concurrently, construction methods have been modified comprising air lift clean up, use of fabric liner and grouting of tip zone. The case histories provide load test and pile performance data for validation of postulated design parameters and evaluation of efficacy of construction methods.
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
Datye, K. R. and Patil, J. R., "Case Histories of Pile Foundations in Bombay Region" (1993). International Conference on Case Histories in Geotechnical Engineering. 7.
https://scholarsmine.mst.edu/icchge/3icchge/3icchge-session01/7
Case Histories of Pile Foundations in Bombay Region
St. Louis, Missouri
Piles in Bombay region are bored cast-in-situ installed by bailor and chisel boring or direct mud circulation with drop chisels. In weak and weathered rock interpretation of core drilling, SPT, CPT, pressuremeter tests are subject to several limitations, hence design parameters based on conventional soil investigation methods are subject to uncertainties. The past practice has been empirical and the designers relied mainly on load tests and failures have occurred in areas subject to considerable variation in rock characteristics and large depth of soft clay overburden. Recently improvements in investigation and design methodology have been introduced based on postulated relations of design parameters with energy inputs in chisel penetration. Concurrently, construction methods have been modified comprising air lift clean up, use of fabric liner and grouting of tip zone. The case histories provide load test and pile performance data for validation of postulated design parameters and evaluation of efficacy of construction methods.
