Accession Number : AD0801487

Title :   NONLINEAR STATIC ARCHING FOR VERTICALLY BURIED PRISMATIC STRUCTURES.

Descriptive Note : Technical rept. Feb 64-Apr 66,

Corporate Author : NEW MEXICO UNIV ALBUQUERQUE ERIC H WANG CIVIL ENGINEERING RESEARCH FACILITY

Personal Author(s) : Abbott, Phillip A.

Report Date : AUG 1966

Pagination or Media Count : 102

Abstract : The method is analyzed by which static arching problems involving nonlinear vertically buried, prismatic structures and nonlinear mediums may be handled when, first, a condition of no failure occurs. A solution is presented which bounds the admissible range of arching factors by assuming, second, a condition of complete failure of the medium. Good experimental agreement was obtained in the no-failure tests, and it was also shown by experiment that the complete-failure theory gave adequate bounds to the arching factor at relatively shallow depths of burial and relatively high overpressures. A third condition, local failure of the medium in the vicinity of the ends of the structure, was shown to be possible in passive tests. This was demonstrated both by quantitative arching data and by photographs from tests in layered sand. It was shown that the no-failure theory gave an upper bound to the arching factor in a problem involving local failure. The problems of the floating structure and the rigidly mounted structure were both studied.

Descriptors :   (*SOILS, SHEAR STRESSES), MODEL TESTS, SAND, STATICS, THEORY, SOIL MECHANICS, UNDERGROUND STRUCTURES, CYLINDRICAL BODIES.

Subject Categories : Soil Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE