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盾构机是一种隧道掘进的专用工程机械,集机、电、液、传感、信息技术于一体,其基本原理是基于一圆柱形的钢组件沿隧洞轴线被向前推进的同时开挖土壤,该钢组件始终防护着开挖出的空间,直到初步或最终隧洞衬砌建成。盾构机具有开挖切削土体、输送土渣、拼装管片、隧道衬砌等功能,在城市的地下轨道交通、公路铁路隧道、过江跨海隧道等工程施工中,少了它寸步难行。其优点是:机械化程度高;隧洞形状准确;对地面结构影
Shield machine is a kind of special construction machinery for tunnel excavation. It integrates machine, electricity, liquid, sensor and information technology. The basic principle of the shield machine is based on that a cylindrical steel component is excavated along the tunnel axis while being advanced Soil, the steel components always shield the excavated space until the initial or final tunnel lining is built. The shield machine has the functions of cutting and cutting soil, transporting soil dregs, assembling segments and lining of tunnels. It has less difficulty in construction of urban underground rail transit, highway rail tunnel and over-river tunnel. Its advantages are: a high degree of mechanization; tunnel shape accurate; on the ground structure shadow