Recent Progress in Research on Mutual-Affections between Roadbed and Perennial Frozen Soils
ZHU Zhenggang QIAN Jiang LI Nansheng (Tongji University, Shanghai 200092)
Roads, industrial infrastructures and large-scale construction projects constructed in permafrost regions are affected completely by the stability of frozen ground. Thermal conditions, moisture transference and their transformation are main causes for frost heave. With the view of the stability, endurance and initiative of construction projects, the establishment of a reliable evaluation method of the thermal environment for roadbeds and a reasonable and accurate computational model of the temperature field in that connection are particularly essential for civil engineering in cold regions. In this paper, recent researches on mechanism, modeling and computation of heat and moisture flow in frozen soils are briefly reviewed and directions for further efforts are suggested.
【CateGory Index】： U416.1