With the increase of train speed, the frost hazard of subgrade engineering in seasonally frozen soil becomes more and more serious.
随着列车速度的不断提高，季节冻土区路基工程的冻胀问题也越来越突出。
Through analyzing the cause of subgrade engineering quality disease, the paper proposed its technical measures and methods for reference.
通过对路基工程质量通病产生原因的分析，提出了解决路基质量通病的技术措施及方法。
Compared to other kinds of piles, the cement-mixed pile demonstrates its several strong points, and so it is widely used in subgrade engineering.
这种类型的桩与其他类型的桩相比有许多优点，在地基工程中得到了广泛的应用。
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