Geotechnical problems of construction on permafrost in Mongolia

Permafrost is found on 63% of the territory of Mongolia. This paper provides evidence that the main influences on permafrost formation are meso and micro factors of climate and geographical location. Regional classifications of permafrost areas in order to select the optimal principle of foundation design on permafrost are suggested based on many years' experience and lessons learned from past construction works in Mongolian geotechnical and climatic conditions. Finally,optimal alternatives for designing foundations for construction on permafrost are presented based on the specific characteristics of permafrost in the classification areas and certain building dimensions.