Sealing Construction Technology of Super-high and Extra-large Right-left Closed Rectangular Tube Hole Door
In order to ensure the construction safety of ultra-high extra-large section rectangular pipe jacking in the tunnel door chiseling,start-ing,jacking and receiving,taking the Shasan station of the second phase of Shenzhen Metro Line 12 as an example,the sealing technology of the ultra-high extra-large section rectangular pipe jacking tunnel door was analyzed,the steel ring was installed as a whole,the left and right lines were sealed separately with the rubber waterproof curtain cloth and folding pressure plate of the hole door,the channel steel support was used in the installation of the steel ring of the hole door,and the temporary steel support was erected in the middle.It ensures the safety of wa-terproof sealing of the hole door in the whole process of jacking construction of the rectangular pipe jacking with ultra-high and large section.
Hole door steel ringExtend long steel ringHole door seal
国家科技期刊平台
NSTL
万方数据
