Accession Number:

ADA141687

Title:

Bomb Damage Repair. Precast Slab Design

Descriptive Note:

Final technical rept. Oct 1981-Mar 1983

Corporate Author:

AIR FORCE ENGINEERING AND SERVICES CENTER TYNDALL AFB FL ENGINEERING AND SERVICES LAB

Personal Author(s):

Report Date:

1984-04-01

Pagination or Media Count:

123.0

Abstract:

A study was made to evaluate various methods of rapid repair of bomb craters on runways using precast concrete slabs as structural elements. Primary focus was on optimum utilization of the concrete slabs when placed on debris backfill and on compacted select material backfill. Three primary repair concepts were studied placement of slabs flush with the surrounding pavement and interlocked at the edges with concrete grout Flush Slab Method placement of slabs slightly below the surrounding pavement and surfaced with a 2-inch thick concrete cap screeded flush with the old pavement Submerged Slab Method and placement of the slab flush with the old pavement with no-load transfer mechanism German Method. Analyses were made of the various repair methods based on estimated time of repair and on expected structural response under aircraft loading. Time estimates were subdivided into time elements for the major repair tasks. Structural analyses were conducted with layered elastic and modified finite element computer codes. Repair methods evaluated as having most potential for development as standard procedures were those involving use of slabs submerged in a capped-concrete matrix. Analyses indicated that the other two methods offered less potential for future development. It was recommended that field tests be conducted to further evaluate all three methods.

Subject Categories:

  • Terminal Flight Facilities
  • Operations Research
  • Civil Engineering
  • Logistics, Military Facilities and Supplies

Distribution Statement:

APPROVED FOR PUBLIC RELEASE