PUS가 적용된 지하벽체의 경제성 분석에 관한 연구

Abstract

In spite of the large stiffness of the CIP wall, it is used only as the temporary wall. Because it shows the problems of straightness and the poor unification in the joint between the each pile. Recently the Uni-wall method which improves the disadvantage of the CIP has been developed, still for the temporary wall. Therefore, the Uni-wall method is utilized and Permanent Uni-wall System(PUS) tries to be developed.

In this research, the economic analysis with the current method of construction which is used like the CIP method+basement wall and slurry wall method as the underground permanent wall in order to evaluate the profitability of PUS was performed.

At this time, the structure and construction condition used in the analysis considered the arbitrary environment and With respect to this, each basement wall was designed and the output of resources and construction cost was calculated and it applied to the analysis. At this time, the construction cost classified as the material cost, labor cost, and expenses and analyze.

The material cost analyzed result, Type 1 section of PUS was required the most expensive cost and the slurry wall method was required the smallest cost. The labor cost analyzed result, slurry wall method needed the most abundant cost and PUS Type 1 section needed the smallest human resource. The expenses analyzed result, slurry wall method was required the most expensive cost and the CIP method+basement wall needed the lowest cost.

The total construction cost analyzed result, slurry wall method was required most expensive cost and PUS Type 2 section showed up as the most economic method.