Study on Hydraulic Model Test at No. 1 Flood Discharging Tunnel of Hekoucun Reservoir

Yan Fen Ren; Guo Ying Wu; Chao Zhu

doi:10.4028/www.scientific.net/AMM.501-504.1804

Paper Titles

Ground Penetrating Radar (GPR) and its Application in Tunnel Engineering
p.1783

Analysis on the Impact of the Constitutive Model of Trains Vibration in Shield Tunnel
p.1787

Intelligent Control of Ventilation System for Tunnel Group of Highway Section
p.1792

Study on Deformation Mechanism of High Stress and Broken Roadway and its Controlling Measures
p.1798

Study on Hydraulic Model Test at No. 1 Flood Discharging Tunnel of Hekoucun Reservoir
p.1804

Research on Plane Strain Model Test of Rockburst of Underground Cavern in Hard Brittle Rockmass
p.1810

Nondestructive Testing for Support Quality of Tunnel
p.1815

Mechanical Analysis of Shell Structure in Longwall Mining Face of Steeply Dipping Seam
p.1820

Research on Supporting Technology of Wind Drift at B103W01 Workface in ShajiHai Coal Mine
p.1827

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 501-504Study on Hydraulic Model Test at No. 1 Flood...

Study on Hydraulic Model Test at No. 1 Flood Discharging Tunnel of Hekoucun Reservoir

Abstract:

Based on hydraulic model test, overflowing capacity, water flow state, flow speed distribution, pressure, fluctuating pressure, downstream erosion of flood discharging tunnel and other parameters while total opening and part opening of No. 1 flood discharging tunnel of Hekoucun Reservoir have been observed. It is indicated in experimental study, water at the contraction section at the end of the sluice chamber gets fierce fluctuation, with spray reaching the tunnel top, and results in great negative pressure on the lateral walls on both ends of the contraction section in the original design scheme. After changing the shape of the transition, flow state has been improved, negative pressure reduced, so the design is adaptable; It is recommended in the test guiding plate can be added on the both sides of the cleaning door so as to reduce water-wing height; Three medium-size piers have been compared with the better pier recommended in the test.