膨潤性塗料を用いた負の摩擦力低減対策杭の研究 : その2 現場実験

概要

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We report the result of measurement on the field test of negative skin friction on piles using the swelling paint.mentioned in the previous report", Part 1, "Material characteristics". The purpose of the test was to check the performance to bored precast piles using cement milk. The diameter of these piles was 600 mm and the length was 70 m. Measurements on the field test were taken over 273 days. During this time, the swelling paint worked effectively, and the measured value of ground subsidence was 29. 6 cm. As the result of the present field test, it becomes clear that the rate of negative skin friction on piles using swelling paint to one of piles without reducing negative skin friction is about 84〜88 %. Consequently, the shear stress of swelling paint to transfer friction on the field test is equal to or less than 0. 3 t/m^2, the value is about equal to or less than the value obtained in the laboratory test.
社団法人日本建築学会の論文
1993-07-30