A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Injecting Cement Grout during Horizontal Directional Drilling (HDD) Pullback
A 24-inch diameter natural gas pipeline traversed the Sacramento-San Joaquin River Delta in 2001 and included three HDD crossings of elevated rivers or sloughs. Crossing lengths varied from 1400 to 1800 feet. Typical profiles provided for 75 feet of cover beneath the channel bottom resulting in total depths of about 100 feet beneath the entry and exit points. Each crossing was installed on the first try while injecting cement grout through the reamer during pullback. The cement grout was specifically designed for HDD applications to provide extended cyclic pumpability, resistance to flash setting, and delayed hydration. This paper discusses the components of the cement mix design as well as the procedures used during installation.
Injecting Cement Grout during Horizontal Directional Drilling (HDD) Pullback
A 24-inch diameter natural gas pipeline traversed the Sacramento-San Joaquin River Delta in 2001 and included three HDD crossings of elevated rivers or sloughs. Crossing lengths varied from 1400 to 1800 feet. Typical profiles provided for 75 feet of cover beneath the channel bottom resulting in total depths of about 100 feet beneath the entry and exit points. Each crossing was installed on the first try while injecting cement grout through the reamer during pullback. The cement grout was specifically designed for HDD applications to provide extended cyclic pumpability, resistance to flash setting, and delayed hydration. This paper discusses the components of the cement mix design as well as the procedures used during installation.
Injecting Cement Grout during Horizontal Directional Drilling (HDD) Pullback
Stauber, Richard M. (author) / Frame, Timothy A. (author) / Kedzierski, Matthew (author)
Pipeline Engineering and Construction International Conference 2003 ; 2003 ; Baltimore, Maryland, United States
2003-07-08
Conference paper
Electronic Resource
English
Injecting Cement Grout During Horizontal Directional Drilling (HDD) Pullback
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