埋設鋼管防食用塗覆装材の土壌応力に対する挙動
1963 年 12 巻 11 号 p. 510-514
詳細
1963 年 12 巻 11 号 p. 510-514
To learn the behavior to soil stress, a soil stress test was carried out with various protective coating and wrapping materials for underground pipeline.
The results obtained were as follows:
(1) Among the coating materials, coal-tar enamel showed the best resistance, the asphalt enamel ranked the second and blown asphalt the third.
(2) As for the wrapping materials tested, jute cloth was a little better and glass cloth was a little worse. The others held about the same rank between jute and glass cloth.
(3) No coating without reinforcing wrappers showed good resistance.
(4) Coatings covered with whitewash showed higher resistance against soil stress than those without it, thus whitewash was effective to relieve soil stress.
(5) Polyethylene lining slid through the surrouding clay, and therefore it withstood well soil stress.
