수두손실률의 경시변화에 의한 방조제 제체의 점진적인 차수상태 변화 감시

Abstract

In this study it was adopted on sea dike monitoring that the safety monitoring with statistical limits which was adapted usually on safety monitoring bymeasuring pressures, stresses or deformations. And also the hydraulic head loss rate change according to passage of time was calculated for the purposeof safety monitoring. Safety monitoring by setting the statistical limit on the measured pore water pressure graphs need to be supplemented with anadditional method of monitoring because the difference between the rise and fall of the tide was irregular. Safety monitoring by the limits set from valuespredicted by linear regression and standard errors on the hydraulic head loss graph was not affected by irregularity of tide. But if the condition of anembankment is changed gradually and slowly, it will not be detected on the hydraulic head loss graph. The graph of hydraulic head loss rate for every 24hours vs date showed clearly that the sea water blocking state was getting better or not even though it was changed gradually and slowly.