| 摘要 |
FIELD: building, particularly to erect building structures in permafrost areas and thick snow cover. ^ SUBSTANCE: tunnel comprises trench in which load-bearing enclosing structure partly submersed in ground below natural ground surface is arranged. The enclosing structure defines space for transport passage structure location. Nonfrost-susceptible ground layer is arranged under the passage structure. Total height of the nonfrost-susceptible ground layer between passage structure bottom and lower trench surface is to be not less than season thawing depth. Ground prism is created above natural ground surface having axis coinciding with tunnel axis. Width B of ground prism determined along trench top, ground prism width Bp, ground prism height he at edges thereof and ground prism height ha along structure axis are determined from given correlations. ^ EFFECT: reduced costs of motor road and rail road erection in permafrost ground and increased ability of ground retaining in permafrost condition. ^ 2 cl, 2 dwg |
