THE DESIGN AND construction of the foundations for the Marc Basnight Bridge proved to be a challenge, beginning with the selection of the most viable options and continuing through the installation and verification of the completed bents. With design scour depths of up to 84 ft and high lateral loads-including wind, wave, and ship impact loads-the foundations had to extend to significant depths through a consistent layer of dense sand to obtain adequate lateral resistance. Following an in-depth review of various foundation options, including traditional drilled shafts and innovative systems like hybrid pile-shaft foundations, the design/build team elected to use jetted then driven prestressed concrete piles.
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机译：MARC型宿舍桥梁基金会的设计和构建被证明是一项挑战，从选择最具可行的选择和继续安装和验证完成的朋格开始。设计刷新深度高达84英尺和高侧向载荷 - 包括风，波浪和船舶冲击载荷 - 基础必须通过一致的密集砂层延伸到显着深度，以获得足够的横向电阻。 Following an in-depth review of various foundation options, including traditional drilled shafts and innovative systems like hybrid pile-shaft foundations, the design/build team elected to use jetted then driven prestressed concrete piles.
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