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德国Herrenknecht的混合盾构在隧道工程中已广泛地使用。混合盾构能满足在许多困难地层,从砂和粘土变化到硬岩的地层中开挖。这种盾构本机可以构成一台泥水盾构、气压式盾构或土压平衡盾构,当地层条件变化时,盾构的构形可以随地层变化而相应改变调正。
Hybrid shields from Herrenknecht, Germany are widely used in tunneling. Hybrid shields enable excavation in strata that vary from sand and clay to hard rock in many difficult formations. The shield can form a mud shield, pressure shield or earth pressure balance shield. When the conditions of the formation change, the configuration of the shield can be changed and adjusted accordingly as the formation changes.