关键词: 区域冻土学, 冻土物理学, 冻土改造和利用

Abstract: Recently, the investigative territory in Regional Geocryology have been further expanded to Antarctica, the arid northwest and the humid southeast parts of the Qinghai-Xizang Plateau. Some kinds of massive ice with different origins have been found. In physics of Frozen Soils, studies on water migration, frost heave, mechani.m of ice formation, strength and creep have been develaped in depth. In the last few years, the studies on amelioration and utilization of fro-zen soils are on the upgrade. There is a good begonning in the studies on placer gold mining and utilization of thermal pile in cold regions.

Key words: Regional Geocryology, Physics of Frozen Soils, Amelioration and Utiliza-lion of Frozen Soils