|
|
|
| Exploration on Tunnelling by Shield Machine in Long-distance Hard Rock Area |
| WANG Xiao-zhong |
| Guangzhou Metro General Corporation, Guangzhou, Guangdong 510380, China |
|
|
|
Abstract Research purposes: At present, shield tunnelling machine has been applied widely in variable fields of civil engineering, but it is seldom found the shield tunnelling technology was applied to tunnelling in long-distance hard rock for subway construction. The research in this paper was made mainly on the adaptation of shield tunnelling machine, the problem that probably occurred and the measures that should be taken for tunnelling in long-distance hard rock.
Research methods: The information was collected on the relevant data, problems and countermeasures taken in construction through the construction example of tunnelling in long-distance hard rock area of Guangzhou Metro. Also the analysis was made on this information.
Research results: It was shown from the example mentioned above that the tunnelling by shield tunnelling machine in long-distance hard rock area was feasible and the problems could be solved by taking some measures.
Research conclusions: Shield tunnelling machine could tunnel smoothly because the hard rock in this area had small fissures and most fissures had been filled by fine quartz vein. It could be said although the single axle of rock had good compression, if fissure developed, shield tunnelling machine could tunnel smoothly in hard rock area and the tunnelling speed was faster than that of other machines through selecting right type of shield tunnelling machine and equipping right cutter head and bit tool.
|
|
Received: 16 March 2006
|
|
|
|
|
|
| [1] |
竺维彬,袁敏正.浅论广州地铁对中国盾构技术进步的贡献[C]//2004年中德隧道(盾构)技术研讨会论文集.2004,7.
|
| [2] |
HUAN LUIS MAGRO,硬岩掘进技术的最新发展[C]//2004年中德隧道(盾构)技术研讨会论文集.2004,7.
|
|
|
|
2006, Vol. 23 
