Location

New York, New York

Session Start Date

4-13-2004

Session End Date

4-17-2004

Abstract

Over the last few decades grouting technology has grown into one of the disciplines in geotechnical engineering comprising mainly of foundation treatment of dams and other structures by strengthening or by making them impermeable and has become one of the main tool to rehabilitate the dams structurally. The present case study deals with structural rehabilitation of Tillar earthen dam which was constructed in 1987 but distress signals had started from the first impounding. Highly permeable strata having permeability to the tune of 0.36 x 10-1 cm/sec was existing between the bottom of Cut off Trench (COT) and foundation rock. From this zone water was permeating and causing danger to the stability of the dam. Grout curtain in the permeable zone, below COT bed and upto foundation rock by using the special technique namely Tube-a-Manchatte Grouting was used to reduce the permeability from 10-1 cm/sec to 10-5 cm/sec and also to provide grout curtain in foundation rock upto 7 m depth.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Fifth Conference

Publisher

University of Missouri--Rolla

Publication Date

4-13-2004

Document Version

Final Version

Rights

© 2004 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

Share

 
COinS
 
Apr 13th, 12:00 AM Apr 17th, 12:00 AM

Grouting Technology for Rehabilitation of Tillar Earthen Dam

New York, New York

Over the last few decades grouting technology has grown into one of the disciplines in geotechnical engineering comprising mainly of foundation treatment of dams and other structures by strengthening or by making them impermeable and has become one of the main tool to rehabilitate the dams structurally. The present case study deals with structural rehabilitation of Tillar earthen dam which was constructed in 1987 but distress signals had started from the first impounding. Highly permeable strata having permeability to the tune of 0.36 x 10-1 cm/sec was existing between the bottom of Cut off Trench (COT) and foundation rock. From this zone water was permeating and causing danger to the stability of the dam. Grout curtain in the permeable zone, below COT bed and upto foundation rock by using the special technique namely Tube-a-Manchatte Grouting was used to reduce the permeability from 10-1 cm/sec to 10-5 cm/sec and also to provide grout curtain in foundation rock upto 7 m depth.