A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Remedial Grouting at Chickamauga Lock Cofferdam
Rembco recently completed a grouting program for the Army Corp of Engineers at Chickamauga Dam in Chattanooga, TN, USA. This paper is a case history of the grouting program used to improve the condition of the cofferdam constructed under a previous contract. Prior to this grouting program, inflow rates as high as 0.757 cubic meters per second (m3/s) (12,000 gallons per minute–GPM) were observed during a previous dewatering of the cofferdam. Rembco prepared modern grout mix designs using thixotropic admixtures and used modern batching equipment to meet the stringent bleed and pressure filtration requirements. Grout was placed in standpipes drilled into the existing coffer cells to seal inflow beneath the cells. The grouting program reduced inflow by 80% to only 0.158 m3/s (2,500 GPM). This paper details the grout mix designs, data collection, mixing, and pumping equipment used to successfully complete the project and illustrates how modern equipment is critical for project success.
Remedial Grouting at Chickamauga Lock Cofferdam
Rembco recently completed a grouting program for the Army Corp of Engineers at Chickamauga Dam in Chattanooga, TN, USA. This paper is a case history of the grouting program used to improve the condition of the cofferdam constructed under a previous contract. Prior to this grouting program, inflow rates as high as 0.757 cubic meters per second (m3/s) (12,000 gallons per minute–GPM) were observed during a previous dewatering of the cofferdam. Rembco prepared modern grout mix designs using thixotropic admixtures and used modern batching equipment to meet the stringent bleed and pressure filtration requirements. Grout was placed in standpipes drilled into the existing coffer cells to seal inflow beneath the cells. The grouting program reduced inflow by 80% to only 0.158 m3/s (2,500 GPM). This paper details the grout mix designs, data collection, mixing, and pumping equipment used to successfully complete the project and illustrates how modern equipment is critical for project success.
Remedial Grouting at Chickamauga Lock Cofferdam
Bachand, Nicholas Stephen (author) / Michael Bivens, R. (author)
Grouting 2017 ; 2017 ; Honolulu, Hawaii
Grouting 2017 ; 348-357
2017-07-06
Conference paper
Electronic Resource
English
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