论文部分内容阅读
本文根据B.A.库德里亚夫采夫分类法,对国外四种类型计算天然土层季节冻结或融化深度公式作以简介和评论。 根据文献记载,截止1974年,国外计算天然条件下湿土冻结或融化深度的公式,已有一百多个。对于这一课题的研究,苏联(包括帝俄时代在内)大约已有一百多年的历史。美国、加拿大、日本国和蒙古人民共和国也都有几十年的历史了。直到今天,苏联仍处领先地位。
Based on B.A. Kudryavtsev classification, this paper introduces and comments on four types of formulas for calculating the seasonal freezing or thawing depth of natural soil in foreign countries. According to the literature, as of 1974, there are more than 100 formulas for calculating the depth of freezing or melting of wet soils under natural conditions abroad. For the study of this subject, the Soviet Union (including the era of Emperor Russia) about a hundred years of history. The United States, Canada, Japan and the People’s Republic of China all have decades of history. Until today, the Soviet Union still has a leading position.