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本文以兰新线西段软弱路基的施工实践,阐述了石灰挤密桩的加固原理及对软弱土路基的加固作用,介绍了石灰挤密桩的施工工艺和质量的检测方法,并介绍了兰新线西段软弱路基的病害类型、特征及引起路基病害的原因、石灰挤密桩的实际应用,通过实例证明石灰挤密桩在软弱路基的处理中具有很好的效果。
In this paper, the construction practice of soft subgrade in western section of Lanxin Line is expounded. The principle of strengthening limestone compaction piles and its reinforcement effect on soft soil subgrade are introduced. The construction technology and quality testing methods of lime-compaction piles are introduced. The disease types and characteristics of the weak embankment in the west section of the New Line and the causes of the roadbed diseases, and the practical application of the lime-compaction pile. The results show that the lime-compaction piles have a good effect in the treatment of the weak embankment.