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顶管机主要由旋转挖掘系统、主顶液压推进系统、泥土输送系统、注浆系统、测量设备、地面吊装设备和电气系统等组成。泥水平衡式顶管机还设有泥水处理装置。其中旋转挖掘系统(俗称“机头”)主要由前钢壳、后钢壳、切削机构(切削刀盘)、刀盘减速器、送排泥浆机构、液压动力装置、纠偏液压缸、防水圈、切削刀头、刀盘旋转轴、电气系统、自动控制系统以及附属装置等组成(见图1)。其钢壳承受外部(地层)土压和水压,保护内部设备和操
Pipe jacking machine mainly consists of rotary excavation system, main hydraulic propulsion system, earth conveying system, grouting system, measuring equipment, surface lifting equipment and electrical system. Slurry water pipe jacking machine is also equipped with mud treatment device. The rotating excavation system (commonly known as “nose”) mainly consists of front steel shell, rear steel shell, cutting mechanism (cutter head), cutter reducer, delivery mud mechanism, hydraulic power unit, Ring, cutting head, cutter rotation axis, electrical system, automatic control system and ancillary components (see Figure 1). Its steel shell withstands external (formation) earth pressure and water pressure, protecting internal equipment and operations