three pipes juxtaposition method三列管法
3)three-tube jet-grouting三管法高喷
1.This paper introduces the work principles and construction characteristics of three-tube jet-grouting, and through summing up the construction practice, probes into the operation method of three-tube jet-grouting in the water-stop curtain of building foundation pit.简要介绍了三管法高喷的工作原理及其施工特点,通过对施工实践的总结,探讨了三管法高喷工艺在止水帷幕施工中的使用方式。
4)new three-fluid method for rotating-jet-grouting新三管法旋喷
5)management methods named "San Bu Qu""三步曲"管理法
6)triplex pipe jet grouting三重管旋喷注浆法
延伸阅读
三管三管 三管 任脉的上脘、中脘、下脘三穴合称。管，与脘通。《脉经》：“关脉细，脾胃虚，腹满，宜服生姜茱萸蜀椒汤、白薇圆，针灸三管。”
