A Study on the Measuring about the Coefficient of Earth Pressure at Rest 1

J. Ocean Eng. Technol. 2001;15(4):92-100.

정지토압계수 측정에 관한 연구 1

송무효

동의대학교 토목공학과

Keywords: Coefficient of earth pressure at Rest, Oedometer, Over consolidation ratio

핵심용어: 정지토압계수, 압밀시험기, 과압밀비

Abstract

It is very important to determine the coefficient of earth pressure at rest accurately in order to estimate the behavior of soil structure. For estimation of K/sub 0/-value depending upon the stress history of dry sand, a new type of K/sub 0/-oedeometer apparatus is devised, and the horizontal earth pressure is accurately measured. For this study, 2 types of one-cyclic K/sub 0/-Loading/unloading models have been studied experimentally using four relative densities of the sand. The results obtained in this test are as follows : K/sub on'/ the coefficient of earth pressure at - rest for virgin loading is a function of the angle of internal friction