Thermal Insulation Design and Effect Analysis of Bamboo Winding Drainage Pipe in Tunnel in Cold Region
Aiming at the freezing problem of drainage pipes in tunnel centers in the cold region,taking a tunnel in Lanzhou City as the engineering background the surrounding temperature field and the thermal insulation performance of a new bamboo winding center drainage pipe are studied.Numerical simulation software is used to establish two kinds of central drainage pipe models for calculation and comparison.Combined with the field monitoring data,the reasonable drainage pipe design parameters are proposed.The results show that:(1)The temperature field around the bamboo winding drainage pipe can be effectively improved by using the shallow-buried central drainage pipe design scheme,and the feasibility of the scheme is verified;(2)The bamboo winding drainage pipe is used to make the maximum freezing depth under low-temperature environment not exceed 90 cm;(3)The field application of bamboo winding drainage pipe has a good anti-freeze insulation effect,and has a certain promotion significance.
tunnel in cold regioncentral drainage pipebamboo winding pipetemperature field analysis
NETL
NSTL
万方数据
