Approximate estimating method for amplitude damping of atmospheric temperature and effect of heat insulator depth in tunnel with adiabatic icicle prevention work.

Author(s) : OKADA K.

Type of article: Article

Summary

The author developed icicle prevention in railway tunnels by adiabatic treatment of the lining surface. A method of optimizing materials and thickness of the heat insulator is proposed, along with some design conditions such as the width of the heat insulator, the effect of earth covering and snow deposits and the influence of margin length of the heat insulator, based on thermal analysis of a one-or two-dimensional nonsteady-state heat convection-conduction tunnel-ground model.

Details

Original title: Approximate estimating method for amplitude damping of atmospheric temperature and effect of heat insulator depth in tunnel with adiabatic icicle prevention work.
Record ID : 1993-3669
Languages: English
Source: Q. Rep. RTRI - vol. 33 - n. 4
Publication date: 1992/11
Document available for consultation in the library of the IIR headquarters only.

Links

See other articles in this issue (1)
See the source

Indexing

Themes: Civil engineering
Keywords: Protection; Ice; Damping; Civil engineering; Tunnel; Rail transport; Antifreeze