Method for constructing temporary support of twin-bore immersed tube tunnel with three tube corridors and perpendicular jack of temporary support

• Main Authors: XU JIE, JIANG HONGWEI, LIU XUKAI, ZHAO GUOYONG, YUAN YOUWEI, QING ERCHUN, LIU WENJIANG, BAO YIJIE, SHI QINGCHUN, XIONG GANG, LUO HAOCHONG, SUI HONGRUI, LIU BOHAI, CAO JING, HE CHUNNING, CHEN HONG, WANG YANNING, HUANG SIYONG, MA LIN, HE HAI
• Format: Patent
• Language: Chinese; English
• Published: 30.04.2014
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention discloses a perpendicular jack system for a temporary support of a twin-pore immersed tube tunnel with three tube corridors. The perpendicular jack system comprises a perpendicular jack. An upper embedded part of the perpendicular jack is welded at the upper end of the perpendicular jack, a push rod of the perpendicular jack is welded at the lower end of the perpendicular jack, and the perpendicular jack is respectively fastened with the upper embedded part and the push rod, which are arranged at the two ends of the perpendicular jack, by bolts; the lower portion of the push rod penetrates a lower embedded part of the perpendicular jack, a compression sleeve is arranged between the push rod and an upper port of the lower embedded part, the lower embedded part is connected with the compression sleeve in a threaded manner, sealing packing is arranged below the compression sleeve, and an O-shaped rubber sealing ring is arranged between the push rod and a lower port of the lower embedded part; a gro