Principles and methods for optimal foundation design on permafrost of Mongolia

Based on the many years experience and lessons learned from construction works on permafrost in Mongolian geological and climatic condition, regional classification of permafrost areas to select optimal principle of foundation design have been suggested. For example, in regions with continuous, discontinuous and scattered permafrost the principle of maintaining permafrost in the frozen condition is offered. Whereas in areas with sporadic permafrost the principle of complete and partial prethawing and compacting permafrost should be used. In this work optimal alternatives for projecting foundation design on permafrost have been developed according to the characteristics of permafrost in the area and dimensions of the building.