Life prediction for geotextile in saline soil roadbed of heavy haul railway

For lack of the research results of geotextile field life at home and abroad, in this paper, the lab and field researches are carried out to find the engineering life and protect technology in field. which will provide reference for the design and construction of geotextile in heavy haul railway roadbed. Research conclusions: (1)A preliminary estimated life of two cloth a membrane geotextile in saline soil embankment is within 80 years by tracking experiments. (2) The effect sequences of aging factor of two cloth a membrane geotextile are as follows: ultraviolet, high pressure, salt pond water, sea water, etc. (3) The engineering sampling period is suggest as 10 years based on field sampling test and operating line survey. (4) The research results can be successly used in some saline soil railway, highway and civil aviation engineering. ©, 2015, Editorial Department of Journal of Railway Engineering Society. All right reserved.