The Changjiang rub-river tunnel is designed as inverted siphon with drop shaft.
长江过江隧道采用了竖井式倒虹吸管的布置形式。
The system consists of a swirling chamber, two vertical buckets on its wall, a drop shaft and a water cushion pit with one blind tunnel.
本文通过模型试验研究涡室-竖井内消能系统,用内设阻涡坎的涡室连接泄洪洞和竖井,带盲洞的消力井连接竖井和导流洞。
The results of shot-delay blasting application in aspects of decreasingblasting-shake and ensuring safety of tunnel &drop shaft are discussed.
介绍了孔间、孔内和孔间微差爆破的原理、参数、设计施工要点及在降低爆破震动、保护平硐溜井使用安全方面的应用结果。