1) leading steel pipeline shed
超前大管棚
1.
The application of leading steel pipeline shed previous timbering technology in Dongtian tunnel;
超前大管棚预支护技术在东田隧道中的应用
2) large-scale lead pipe grouting
超前大管棚注浆
1.
By means of water drainage and blockage, and with large-scale lead pipe grouting technology, the tunnel goes through the poor geology zone smoothly.
吊钟岩隧道DK250+130处,隧道拱部突发涌水、涌泥石,造成掌子面堆积,采用排堵水和超前大管棚注浆相结合的施工技术,顺利通过了该不良地质地段。
5) ultra long and large pipe shed
超长大管棚
6) long pipe-shed pre-reinforcement
长管棚超前支护
1.
With the construction case of 65m long pipe-shed pre-reinforcement,the paper introduced the construction technology of long pipeshed with Haiwangxing-508 drilling machine,and discussed the feature requirement of drilling machine in the construction.
结合65 m长管棚超前支护的施工实例,介绍了海王星-508型钻机在长管棚施工中采用的施工工艺,并探讨了长管棚施工对钻机的性能要求。
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