地铁隧道下穿建筑物的施工防护技术

摘要

How to protect buildings cut through by subway tunnel is a difficult technical problem. The subway tunnel cut throuth under the complex building with the features of friction pile foundation, shallow buried depth of pile, the long histo-ry, right and left tunnel has construction successively.%某城市地铁隧道在一综合楼正下方通过,该楼为摩擦桩基础,桩基埋深浅、建筑年代久远,而左、右线隧道的先后施工,必定对该楼多次扰动,如何保护建筑物成为一个技术难题.介绍了地铁隧道开挖时下穿建筑物的防护技术.