Stability study of CRREL permafrost tunnel

Scott Lin Huang, Nolan B. Aughenbaugh, Ming-Chee Wu

研究成果: Article

10 引文 斯高帕斯(Scopus)

摘要

Underground excavated openings in permafrost can have significant ground stability problems if the thermal regime of the area is disturbed. Other factors influencing ground stability besides temperature variation include dimensions of the excavation, thickness of the overburden, and geometry of the opening. This paper summarizes the results of a research project conducted at the U.S. Army Cold Regions Research and Engineering Laboratory (CRREL) permafrost tunnel. The relationships between the ground temperature, the roof span dimensions, and the vertical convergence rate of the CRREL tunnel correlates with a combined exponential and logarithmic model. The continuous deformation of the tunnel is primarily temperature dependent. In addition to the effect of temperature, the opening width also exhibits a strong influence on tunnel deformation. The span length gradually achieved a constant effect upon tunnel deformation as the opening width increased. The overburden thickness also exhibits an influence on convergence rate.

原文English
頁(從 - 到)777-790
頁數14
期刊Journal of Geotechnical Engineering
112
發行號8
DOIs
出版狀態Published - 1986 一月 1

    指紋

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

引用此