|
|
|
| The Measures and Construction Methods about the Open Full-face Tunnel Boring Machine Going through the Bad Geology Area |
| GAO Xiao-dong |
| China Railway Construction Corporation, Beijing 100855, China |
|
|
|
Abstract Research purposes: Two sets of TB880E TBM manufactured by German Wirth Corporation were introduced in 1997 by the Railway Ministry. These machines' structures and technical data were designed according to Qinling Super Long Tunnel of Xi’an-Ankang Railway, which were applicable to excavating construction of hard rock tunnel that was, Open Hard Rock Tunnel Boring Machine (TBM).It is still a difficult problem suffering the world to excavate through the soft surrounding rock.
Research methods: This paper researched the preventive measures and construction methods on TBM construction accidents in terms of Taohuapu No.1 tunnel construction practice of Xi'an-Nanjing Railway.
Research conclusions: This paper proposed a 20-Chinese-word principle, "Advance prediction, lining construction, data adjustment, proper promotion, and disturbance reduction", How to deal with landslide was also described in the paper, in conclusion, "Anchor spraying in time, steel-rack sealing, steel pipe lap-welding, otter board combining, slump blocking, and dense refilling". TBM excavating through the section of unfavorable geological condition smoothly and safely was validated in Taohuapu No. 1 tunnel construction.
|
|
Received: 26 July 2006
|
|
|
|
|
|
| [2] |
桃花铺隧道工程指挥部.西安南京铁路桃花铺1#隧道施工组织设计[Z].天津:铁道部第十八工程局,2000.
|
| [3] |
铁道第一勘察设计院.西安南京铁路桃花铺1#隧道设计资料[R].兰州,2000.
|
| [1] |
唐经世.隧道与地下工程机械掘进机[M].北京:中国铁道出版社.1998.
|
|
|
|
2006, Vol. 23 
