Reply on topic: Sondaj delgisi, İstanbul havaalanı tünelinin tavanını deldi
https://www.dailymotion.com/video/x8rme6q Some building contractor over th...by Sözcü newspaper, the drill is seen, still running, boring...erious accident is only prevented by the drill...Nagasaki, when a geological survey drill bore...Can this be true? China uses TBM in highway construction for the first time
...na not ever using TBM for road tunnels? What did they do? They used drill & blast or they did not build any roa...boring machine producers in the world and they stick to D&B for tunneling? And only building rail and u...Chinese construction company drills into subway tunnel, damaging subway train
In Chinese city of Nanning, a contractor drills down with a drill of 9 centimeters in diameter. And the drill penetrates through the subway tunnel. And then a train comes along, hitting the drill... Is it funny or not? https://www.globaltimes.cn/page/202101/1213725.shtmlReply on topic: Why are all tunnels not excavated via Tunnel Boring Machines?
Dear Ravnish, one of the reasons is the issue of cost. - Tunnel Boring Machines cost millions. They take man...uce. So there is a lead time before you can start the excavation, unlike in Drill & Blast met...Reply on topic: Not Everyone is Excited about Stuttgart's North East Tunnel Proposal
@Adrian The proposed route is proposed as an alternative to the 11,5 km long over ground route connection, also...nel, I read here and there as `a couple of kilometers`. I think it is Drill and Blast is...China Tunnel Technology Paper: Characteristic Study on Gas Blast Loadings in an Urban Utility Tunnel
Qiushi Yan; Yanan Zhang; and Qingwen Sun "If the gas pipe leaks and causes an explosion, this will not onl...is therefore necessary to study the safety of urban utility tunnels under gas blast loa...
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