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X-WR-CALNAME:CECON 2026
X-WR-CALDESC:Revitalizing Resiliency
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DTSTART:20260308T030000
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UID:MEC-c4d2ce3f3ebb5393a77c33c0cd95dc93@texascecon.org
DTSTART;TZID=America/Chicago:20260916T160000
DTEND;TZID=America/Chicago:20260916T170000
DTSTAMP:20260604T152556Z
CREATED:20260604
LAST-MODIFIED:20260903
PRIORITY:5
SEQUENCE:4
TRANSP:OPAQUE
SUMMARY:Enhancing Seawall’s Resiliency against Coastal Erosion with Pressed-in Pipe Pile Wall
DESCRIPTION:National Route 134 of Japan is a scenic coastal highway about 30 miles southwest of downtown Tokyo. The highway agency in charge added a turning lane at a couple of intersections to mitigate chronic traffic jams as well as to retrofit the functionally obsolete earth retaining concrete seawall to enhance resiliency against future coastal erosion. Its highly traveled two lane section is sandwiched by a sandy ocean beach and a railroad on the other side.\nRotary press-in piling was adopted to build a new pipe pile retaining wall directly in the existing seawall/earth retaining structure before demolishing the old structure because the traffic had to be maintained all the time during construction since that particular section of the highway lacked effective detours. With this method pipe piles were rotated and simultaneously pressed into the existing concrete seawall with a cutting shoe welded at the toe of each pile, which cut through the concrete structure and hard soil and allowed the piles to be installed in them. In addition, due to the way it is designed, press-in piling equipment emits low noise and practically no vibration, so it is suited for urban projects such as this one and those close to sensitive structures. With the sea level rising and ever more frequent strong storms, this construction method will benefit many seawall upgrade projects to come in the future with enhanced resiliency.\n
URL:https://texascecon.org/cecon/unlocking-rfq-success-secret-insights-from-the-debriefs-you-never-got/
CATEGORIES:General Breakout,Sessions
LOCATION:C104
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