It appears you don't have support to open PDFs in this web browser. To view this file, Open with your PDF reader
Abstract
The annular shaft, which is widely used in tailings and some large and medium water conservancy project, has the characteristics of simple structure and strong discharge capacity. With the increase of working head, the energy dissipation problem of shaft is becoming much important. Model test results shows that the peak of the hydrodynamic pressure at the bottom of the shaft happens when the water jet merge together, for the water depth H in the shaft is low then, the pre-excavated hydrostatic depth is the main factor of energy dissipation. The fitting formula of the maximum impact pressure is obtained and it is suggested that the energy dissipation depth h should be 0.8D.
You have requested "on-the-fly" machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Show full disclaimer
Neither ProQuest nor its licensors make any representations or warranties with respect to the translations. The translations are automatically generated "AS IS" and "AS AVAILABLE" and are not retained in our systems. PROQUEST AND ITS LICENSORS SPECIFICALLY DISCLAIM ANY AND ALL EXPRESS OR IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES FOR AVAILABILITY, ACCURACY, TIMELINESS, COMPLETENESS, NON-INFRINGMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Your use of the translations is subject to all use restrictions contained in your Electronic Products License Agreement and by using the translation functionality you agree to forgo any and all claims against ProQuest or its licensors for your use of the translation functionality and any output derived there from. Hide full disclaimer
Details
1 Nanjing hydraulic research institute, Nanjing 210029