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Cutter Soil Mixed Support of Excavation Walls and Deep Foundations for Remodeling of a Hotel Structure
In order to remodel an existing beach resort on the Gulf of Mexico, an existing three story structure, founded on stepped tapered piles, was to be replaced by a 10-story building with service rooms on a daylight basement level, conference rooms on the next levels, and up-scale hotel rooms on the upper levels. The new building was founded on augered-cast-in-place (ACIP) piles. The pile caps and the basement required excavations between 9 and 15 ft (3–5 m) below ground surface. BAUER Foundations Corp. (BFC) successfully used cutter soil mixing (CSM) to install the support of excavation walls. This technique allowed for the adjustment of the wall alignment during execution in order to avoid existing and new piles and other underground obstructions. Nearly 1,600 – 16-in. (400 mm diameter) ACIP piles were installed to an average depth of 71.5 ft (22 m) below the ground surface (BGS) by BFC to support the new hotel structure. Initial grout overages in piles were excessively high and ground stability issues were encountered in some pile locations. By identifying specific areas of concern BFC was able to modify the approach to ACIP installation, effectively mitigating the ongoing risks, and successfully completed the project.
Cutter Soil Mixed Support of Excavation Walls and Deep Foundations for Remodeling of a Hotel Structure
In order to remodel an existing beach resort on the Gulf of Mexico, an existing three story structure, founded on stepped tapered piles, was to be replaced by a 10-story building with service rooms on a daylight basement level, conference rooms on the next levels, and up-scale hotel rooms on the upper levels. The new building was founded on augered-cast-in-place (ACIP) piles. The pile caps and the basement required excavations between 9 and 15 ft (3–5 m) below ground surface. BAUER Foundations Corp. (BFC) successfully used cutter soil mixing (CSM) to install the support of excavation walls. This technique allowed for the adjustment of the wall alignment during execution in order to avoid existing and new piles and other underground obstructions. Nearly 1,600 – 16-in. (400 mm diameter) ACIP piles were installed to an average depth of 71.5 ft (22 m) below the ground surface (BGS) by BFC to support the new hotel structure. Initial grout overages in piles were excessively high and ground stability issues were encountered in some pile locations. By identifying specific areas of concern BFC was able to modify the approach to ACIP installation, effectively mitigating the ongoing risks, and successfully completed the project.
Cutter Soil Mixed Support of Excavation Walls and Deep Foundations for Remodeling of a Hotel Structure
Simmons, Justin (author) / Arnold, Michael (author) / Faulhaber, Bob (author)
IFCEE 2018 ; 2018 ; Orlando, Florida
IFCEE 2018 ; 213-222
2018-06-06
Conference paper
Electronic Resource
English
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