Alternative Title
Paper No. 7.27
Location
St. Louis, Missouri
Date
10 Mar 1998, 2:30 pm - 5:30 pm
Abstract
A three year research project was sponsored by the Transportation Research Board (TRB) in 1991 to determine the best materials and methods for sealing small diameter geotechnical exploratory holes. A key requirement of the research project was to verity the effectiveness of the in-place seals. Seal verification studies were conducted at two sites, one in the USA and one in Canada. Seals consisting of various bentonite products and Portland cement were installed and allowed to age. Periodic in situ hydraulic conductivity tests were performed at the Canadian site. Seal exhumation studies were conducted at the USA site. Upon completion of the research in 1994-5, hole sealing guidelines were published by the National Cooperative Highway Research Program (NCHRP). This paper provides an overview of the research project and describes the hole sealing guidelines.
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
Mirza, Cameran and Barrett, Robert K., "Guidelines for Sealing Geotechnical Exploratory Holes" (1998). International Conference on Case Histories in Geotechnical Engineering. 7.
https://scholarsmine.mst.edu/icchge/4icchge/4icchge-session07/7
Guidelines for Sealing Geotechnical Exploratory Holes
St. Louis, Missouri
A three year research project was sponsored by the Transportation Research Board (TRB) in 1991 to determine the best materials and methods for sealing small diameter geotechnical exploratory holes. A key requirement of the research project was to verity the effectiveness of the in-place seals. Seal verification studies were conducted at two sites, one in the USA and one in Canada. Seals consisting of various bentonite products and Portland cement were installed and allowed to age. Periodic in situ hydraulic conductivity tests were performed at the Canadian site. Seal exhumation studies were conducted at the USA site. Upon completion of the research in 1994-5, hole sealing guidelines were published by the National Cooperative Highway Research Program (NCHRP). This paper provides an overview of the research project and describes the hole sealing guidelines.
