Longer Term Monitoring of Strains In MSE Wall

摘要

Interest is growing in the construction of mechanically stabilized earth (MSE) walls with deep foundations included withinrnthe reinforced mass to minimize space requirements for bridge abutments, sound walls, and similar structures. ThernKansas Department of Transportation currently has multiple projects designed with drilled shafts installed through therngeosynthetic reinforcement of MSE block walls for the support of sound walls. To evaluate the lateral capacity of thesernMSE block walls, a test wall 43 m in length and 6.1 m in height was constructed with 8 test shafts behind the wall facing.rnThe shafts were loaded laterally to failure in the direction of the wall facing. This loading resulted in significantrndeformation at the top of the wall facing and localized deformation of the geogrid.rnThis paper contains a discussion of the lateral capacity of the wall and the performance of a control section of the wallrnduring the six months after testing. Wall deflections were also monitored. It was observed that little additional movementrnof the wall occurred after testing was completed.