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1·From adding substances to have physical and chemical effect on forst heaving soil grain to change the feature of the base, then reduce or eliminate the frost heaving feature of base soil.

通过外加物质与地基冻胀土颗粒进行物理化学作用，改变地基的特性，以减少或消除地基土的冻胀性。

2·Research about salt and frost heaving is helpful to further know the engineering properties of sulfate(sulfurous) saline soil.

对盐胀和冻胀规律的研究有助于深入认识硫酸（亚硫酸）盐渍土的工程性质。

3·The frost heaving damage can be thoroughly solved by laying a heat preservation layer in good condition under the rigid lining to prevent the frost heaving of the base soil.

在刚性面层下设置一道性能良好的保温层来防止基土冻结，可以从根本上解决冻胀破坏的问题。

4·The frost heaving damage is main damage form of lining channel in north China, which is an integrative result of temperature, water content, soil characteristic and frost force.

渠道衬砌的冻胀破坏是温度、水分、土质和冻胀力等因素共同作用的结果，是北方地区渠道的主要破坏形式。

5·To sum up, the elements for the heaving are low temperature, moisture, soil quality and pressure etc.

产生冻胀的原因可归纳为低温、水份、土质、压力等因素。

6·It has been proven that this soil can bring about better results in the thermal insulation for frozen ground base and frozen heaving...

初步证明，轻质土在冻土地基的隔热保温与台背填土的防冻胀方面效果比较明显。

7·Pressure relief holes give a big help to decrease the frost-heaving pressure and excavate soil enclosed by frozen curtain.

泄压孔的设置可以有效减小冻胀压力，并有利于冻土帷幕内土体的开挖；