摘要
沈阳地铁某盾构区间一联络通道拱顶土层为饱和含水的细砂层,具有较高的流变特性。考虑联络通道的特点以及所处土层的特性,采取了水平和部分倾斜孔冻结加固土体,然后用矿山暗挖法进行开挖构筑施工。结合该工法的设计及施工,总结了冻结孔以及开挖施工的主要技术措施。
The soil layer of vault of a connectional passage in a shield section of Shenyang subway is a saturated and watery fine sand layer, which has higher connectional passage and characteristics of the soil layer, inclined holes is adopted, and excavation and building rheological behavior. In consideration of the features of freezing reinforcement soil mass with horizontal and partial construction with mine undermining method is performed then. In combination with the design and construction of this kind of construction method, main technological measures of freezing hole and excavation construction are summarized.
出处
《北方交通》
2013年第3期97-99,共3页
Northern Communications
关键词
冻结法
地铁隧道
矿山暗挖法
Freezing method
Subway tunnel
Mine undermining method
