Abstract
Pipe Jacket is woven by circular loom then it is seem less woven geotextile. Pipe Jacket is made of polyester fiber on machine direction, and polyester monofilament on cross-machine direction. Characteristics of this pipe are high tensile strength, high strength of pressure and high ability of drainage. Drainage ability was examined comparing with conventional way such as poly vinyl chloride a pipe which has small holes. As a result Pipe Jacket was 4-10 times many on drainage and 2 times many on filtration. 30m length Pipe Jacket was constructed on the slope at landslide aria. The ability of drainage of Pipe Jacket was confirmed on this site.
