双套筒式碎石机油缸优化设计与应用

摘要

The crusher was the important basis of the tunneling efficiency when slurry shield machine unearthed in the stra-tum that was rich in pebbles and boulders,it’s reliability directly affects the driving efficiency of slurry shield machine in this kind of geological condition.According to the difficulties and problems summing up and combined with Lanzhou Metro Line 1,the text found the root causation that caused the crusher had a high failure rate,then creatively put forward the meth-od and supporting measures to reduce the crusher fault by increased external protective sleeve.%碎石机是泥水盾构机在富含卵石或孤石地层中顺利掘进的重要保证，其可靠性直接影响泥水盾构机在该种地质条件下的掘进效率。结合兰州轨道1号线一期泥水盾构穿黄地铁隧道项目，针对碎石机在黄河上游富漂石地层中遇到的一系列困难和问题进行了总结分析，找到了碎石机系统故障频发的根本原因，并创造性地提出了通过增加外置保护套筒的方式降低碎石机故障的方法及其配套措施。