为解决复杂地质及周边环境盾构设备选型难题，结合多模式盾构的发展与研究现状，对多模式盾构进行了定义与分类，主要分为土压/泥水双模式盾构、土压/TBM双模式盾构、泥水/TBM双模式盾构等几大类型。并结合南宁市轨道交通5号线一期工程，对土压/泥水平衡双模式盾构的主要工作原理、特点、适用范围及适应性设计等方面进行了分析，结果表明： 土压/泥水平衡模式盾构地质适应性广、设备利用率高、施工成本低，解决了同一区间不同地质环境条件下盾构设备选型的问题，在一定程度上为地质复杂、工程敏感地带提供了一套可靠解决方案。
In order to solve the problem of shield equipment
selection in complex geology and surrounding environment, the paper defines and
classifies multimode shield according to its development and research status. It is
mainly divided into several types, such as earth pressure/mud water dualmode shield, earth pressure/TBM dualmode
shield, mud water/TBM dualmode shield. And then
combined with the first phase project of Nanning rail transit line 5, the main
working principle, characteristics, applicable scope and adaptive design of
earth pressure/slurry balance dualmode shield machine
are analyzed. The results show that : The earth pressure/mud water balance
shield has wide geological adaptability, high equipment utilization ratio and
low construction cost, which solves the problem of shield equipment selection
under different geological conditions in the same section. To a certain extent,
it provides a set of reliable solution for the geological complex and
engineering sensitive zone.
