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Jet Grouting Induced Changes in Soldier Pile Loads and Pile Deflections
The axial and lateral behavior of soldier piles during jet grouting beneath a temporary excavation shoring wall has been evaluated from vibrating wire strain gage and inclinometer data obtained from several instrumented piles. Vibrating wire strain gages and inclinometer casings were installed in several soldier piles to measure wall performance as excavation and tensioning of ground anchors progressed during wall construction. Based on the analysis of system performance, it was determined that jet grouting would be employed after three lifts (approximately 4 to 4.3 meters) of excavation and wall construction due to a very soft/loose, saturated alluvial soil zone from 6.1 to 15.2 meters and for minimization of anticipated groundwater migration through the excavation face during subsequent excavation and wall construction. Strain and temperature measurements, as well as inclinometer profiles, were collected as jet grouting was performed near the instrumented piles. The data obtained were analyzed to evaluate the effects of jet grouting on axial load, bending moment, and soldier pile deflection.
Jet Grouting Induced Changes in Soldier Pile Loads and Pile Deflections
The axial and lateral behavior of soldier piles during jet grouting beneath a temporary excavation shoring wall has been evaluated from vibrating wire strain gage and inclinometer data obtained from several instrumented piles. Vibrating wire strain gages and inclinometer casings were installed in several soldier piles to measure wall performance as excavation and tensioning of ground anchors progressed during wall construction. Based on the analysis of system performance, it was determined that jet grouting would be employed after three lifts (approximately 4 to 4.3 meters) of excavation and wall construction due to a very soft/loose, saturated alluvial soil zone from 6.1 to 15.2 meters and for minimization of anticipated groundwater migration through the excavation face during subsequent excavation and wall construction. Strain and temperature measurements, as well as inclinometer profiles, were collected as jet grouting was performed near the instrumented piles. The data obtained were analyzed to evaluate the effects of jet grouting on axial load, bending moment, and soldier pile deflection.
Jet Grouting Induced Changes in Soldier Pile Loads and Pile Deflections
Smith, W. Alex (author) / Borden, Roy H. (author)
Seventh International Symposium on Field Measurements in Geomechanics ; 2007 ; Boston, Massachusetts, United States
FMGM 2007 ; 1-12
2007-09-21
Conference paper
Electronic Resource
English
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