The shield tail brush is an important accessory in soft soil tunnelshield device, and is often used in the tunnel construction.
盾尾刷是软土层隧道盾构设备中的一个重要配件，在隧道施工中常被使用到。
2
At present, shallow shield tunneling technology has been very mature, but very few specific study was conducted on deep tunnelshield tunneling technology.
目前浅埋盾构隧道技术己相当成熟，深埋隧洞盾构技术的专项研究很少。
3
The variation of stress state and strain state induced by tunnelshield driving in soils is studied, and the variation of soil mechanical properties is studied too in this paper.