地铁车站深基坑全长无粘结预应力锚索施工技术  

Construction Technology Summary of Full Length Non Bonding Prestressed Anchor Cable in Deep Foundation Pit of Metro Station

作　　者：张昆[1] 

机构地区：[1]中铁十四局集团有限公司,济南250013

出　　处：《建筑技术开发》2017年第1期70-71,共2页Building Technology Development

摘　　要：厦门轨道2号线东渡路站基坑开挖深度达40m,场区内地质情况复杂,强风化岩层夹杂在中风化层中形成大量风化槽夹层,且厚度达到20~30m,已不能满足规范中对锚杆适用长度小于20m的要求,另外场区临近海边,地下水中富含氯离子,应当在锚索中安放塑料套管,即使用全长无粘结锚索。Xiamen metro line 2 East Road excavation depth of 40m, the field area with complex geological condition and strong weathering rock inclusions in the weathering layer in the formation of a large number of weathered interlayer, and thickness of 20~30 m, has been unable to meet the specification of the anchor for a length of less than 20 m, the other field area near the sea and chlorine ion in groundwater, should be placed in the plastic sleeve anchor, namely the use of full-length anchor without bond.

关 键 词：地铁车站 深基坑 锚索 

分 类 号：TU231.4[建筑科学—建筑设计及理论]