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泥水平衡顶管机作业时,被切削下来的泥土在泥水仓内与输入的泥浆混合成塑性体,以平衡外界土压力。同时要建立高于地下水压力10～20kPa的泥水压,以平衡地下水压力。泥浆塑性体在挖掘面形成一层结实的不透水的泥膜,可防止地下水渗漏到作业面。本文介绍该种顶管机组成和结构特点,以及顶进作业过程中故障排查实例。一、组成和结构特点1.组成(1)主要系统和零部件泥水平衡顶管机主要由旋转挖掘系统(机头)、主顶液压推进系统、泥土输送系统、注浆系
Slurry balance pipe jacking machine operation, was cut down in the mud in the mud silos with the mud mixed into a plastic body to balance the external earth pressure. At the same time to establish a higher than the groundwater pressure of 10 ~ 20kPa mud pressure to balance the groundwater pressure. Mud plastic body in the excavation surface to form a solid impermeable mud membrane, to prevent leakage of groundwater to the work surface. This article describes the composition and structural features of the jacking machine, as well as examples of troubleshooting during in-progress operations. I. COMPOSITION AND STRUCTURAL CHARACTERISTICS 1. Composition (1) Major systems and components Slurry water balance pipe jacking machine mainly consists of rotary excavation system (nose), main hydraulic propulsion system, soil transport system, grouting system