ASSESSING THE SETTLEMENT REDUCTION EFFECT OF HOLLOW STRUCTURAL ENGINEERING (KCR) FOR APPLYING SEA DIKE CONSTRUCTION ON SOFT SOILS

Abstract

Hollow Structural Engineering (KCR) is a new structural technology solution with working principle both based on the gravity foundation and the pile foundation principle. The authors applied this structural engineering to design a coastal protection structure with steps cross section for Tien Lang sea dike and a protection dyke behind Lach Huyen port in Hai Phong. The calculation results show that the construction cost decreases from 65% to 70%, wave run up height on the dike slope reduces from 43.96% to 77.76% in comparison with rubble mound breakwater, which has working principle on gravity foundation. Dyke using Hollow Structural Engineering (KCR) works on the principle of pile foundation, how is settlement reduction effect of this structural technology? Authors used Plaxis-2D software to assess the settlement reduction effect of KCR in comparison with rubble mound breakwater, showing that the settlement is only 18.70%; calculation have shown that the outstanding advantages of KCR in comparison with the known structural engineering.