Original construction of the pool area at the Palms Hotel involved backfilling the location and constructing a pool deck and associated structures on top of this material. The compaction of fill along the pool deck was poor, which created structural settlement problems for the pool and surrounding spa, restaurant and night club. During a later renovation of the pool area, the Hotel commissioned simultaneous foundation work to negate the settlement issues. This involved the remediation of sub-grade soils and underpinning of the pool area and adjacent structures.
Palms Casino and Resort, Whiting-Turner Contracting Company, Northwest Cascade Inc. and Crux Subsurface, Quanta Subsurface
Crux was contracted as a joint venture with Northwest Cascade, Inc. to perform soil remediation and install micropiles for underpinning. Minimal disturbance to the Hotel’s daily operations was crucial, requiring work to be completed during off-peak hours. To accomplish this, interior locations were underpinned during nighttime hours, and all equipment and materials were removed from the spa and restaurant areas prior to their opening each morning.
Micropiles were installed along the outer footprint of the pool deck and within the interior of the Hotel restaurants, spa and night club. Access and working areas were limited to small drill equipment, and in some locations required equipment suitable to work within closet-sized rooms. To minimize impacts on the Hotel, a specialty system was designed to move drill cuttings and spoils from the project site to a remote staging location during drilling operations.