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Application of TPD2800 Type of EPB Pipe Jacking Machine in Backfill Soil Sequence
Pages: 265-268
Year: Issue:  3
Journal: Resources Environment & Engineering

Keyword:  顶管机土压平衡低覆土厚度回填土;
Abstract: 介绍了TPD2 800型土压平衡式顶管机的工作原理、构造特点和刀盘改进的工艺特点。对改进型顶管机在低覆土厚度下的回填土地层中项进时的土压和顶速控制等进行了探讨,结果该工程158 m试验段DN2 400管道的贯通证明,只要选择合适的设备,再加上有效的监控措施,在覆土层厚度不低于0.5倍管外径的前提下,应用土压平衡顶管法是完全可行的。此工程的成功实践,标志着顶管设计、施工技术的重大突破,进一步拓展了顶...
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