中国冻土研究近今进展

近年来,在南极和青藏高原发现了多种成因的厚层地下冰。冰土的水分迁移、冻胀、成冰机制、强度和蠕变等的研究进一步深化。冻土改造和利用兴起,在寒区砂金矿开采、热桩利用等方面有了良好的开端。

RECENT DEVELOPMENT OF GEOCRYOLOGICAL STUDY IN CHINA

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, mechanim of ice formation, strength and creep have been developed in depth. In the last few years, the studies on amelioration and utilization of frozen soils are on the upgrade. There is a good beginning in the studies on placer gold mining and utilization of thermal pile in cold regions.