forced drop shaft 水压沉井凿井
drop shaft sinking 竖井沉井法掘进
drop shaft spillway 跌流式竖井溢洪道
drop worm shaft 落蜗杆轴
inverted-siphon with drop shaft 竖井式倒虹吸管
inverted siphon with drop shaft 竖井式倒虹吸管
drop test for shaft bracket [机] 轴支架投落试验
drop brake shaft 落下式手制动轴
Combined with an experiment on reconstruction of the diversion tunnel as a permanent spillway in one hydropower project,the hydraulic characteristics of the drop shaft spillway were studied. The optimization of the layout of the stilling well was also studied.
结合某水电站导流洞改建永久性溢洪道试验,研究了跌流式竖井溢洪道的水力特性,并对消力井布置进行了优化研究。
参考来源 - 导流洞改建为跌流式竖井溢洪道的试验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
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