Accession Number : AD0752765

Title :   Evaluation of Fiberglass-Reinforced Plastic Hardened Manholes.

Descriptive Note : Final rept.,

Corporate Author : BELL TELEPHONE LABS INC WHIPPANY N J

Personal Author(s) : Peterson,W. E.

Report Date : 30 NOV 1972

Pagination or Media Count : 30

Abstract : The PRAIRIE FLAT Event of the MIDDLE NORTH Series, Bell Laboratories Project LN-116, involved the evaluation of blast resistance of buried fiberglass-reinforced plastic hardened manholes designed for use in Bell System hardened L-4 coaxial cable transmission systems. Data comparisons were made with a previous manhole test at the Corps of Engineers Waterways Experiment Station. Also, comparisons were made of responses of a manhole buried in clay with one buried in sand at the same overpressure range. (Author)

Descriptors :   (*UNDERGROUND STRUCTURES, BLAST), REINFORCED PLASTICS, GLASS TEXTILES, COAXIAL CABLES

Subject Categories : Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE