采用微型盾构换填营业线冻害路基施工技术

Construction Technique on Replacement of Frost Damage Subgrade by Mini-shield for Operating Railway

为整治秦沈客运专线路基冻害,采用了微型盾构掘进换填冻害路基的整治技术,并制定了周密的施工计划和施工组织方案,保证了施工安全性,提高了施工效率。采用该技术进行路基冻害整治的施工工法是首次在国内应用,本文对具体的施工工艺、施工计划和施工组织方案予以介绍,供类似工程参考。

In order to treat the frost damage of Qinhuangdao-Shenyang passenger dedicated railway subgrade,the technique of mini-shield tunneling was adopted to replace the frost damage subgrade,and a thorough construction plan and construction organization scheme are formulated to ensure the construction safety and improve the construction eff iciency.It is the first time that the construction method of frost damage subgrade treatment with this technique has been applied in China. The specif ic construction technique,construction plan and construction organization scheme are introduced for reference of similar projects in this paper.