Underground buried arc-shaped door supporting articulation crossbeam structure for high-speed water flow tunnel spillway
A technology of high-speed water flow and beams, applied in water conservancy projects, marine engineering, coastline protection and other directions, can solve the problems of unfavorable surrounding rock stability, can not guarantee the clear space of the roof of the cave, etc. Good for stable effects
Active Publication Date: 2016-01-06
POWERCHINA CHENGDU ENG
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Problems solved by technology
Although the structure is simple, it has two deficiencies: one is that the bottom of the hinged girder with a rectangular arc door often cannot guarantee sufficient head clearance; section, which is not conducive to the stability of surrounding rock, so more support measures need to be set
Method used
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[0017] The present invention will be further described below in conjunction with accompanying drawing.
[0018] Such as figure 1 with figure 2 As shown, the present invention includes a bedrock rock wall and a hinged girder 1, and the hinged girder 1 is arranged across the bedrock rock wall; the hinged girder 1 is arched, and the top surface 11 of the hinged girder 1 Both the bottom surface 12 and the bottom surface 12 are downwardly curved arc surfaces. The figure of the present invention when concrete application is visible image 3 with Figure 4 As shown, after the construction and installation of the present invention, the water thrust borne by the arc gate 2 can be transmitted to the rock wall through the arc gate hinge support plate 13 on the arc gate hinge girder 1, and the surface of the hinge girder 1 is generally set 1~2 arc door hinge supporting plates 13 get final product, like this, can improve the stressed situation of supporting hinge girder and side wall....
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The invention discloses an arc-shaped door supporting articulation crossbeam structure for a high-speed water flow tunnel spillway and particularly provides an underground buried arc-shaped door supporting articulation crossbeam structure for the high-speed water flow tunnel spillway. The underground buried arc-shaped door supporting articulation crossbeam structure can guarantee the spillway top clearance allowance, facilitate the adjoining rock stability of a tunnel chamber of a work lock chamber and is arranged in the high-speed water flow tunnel spillway. The structure comprises bed rock palisades and a supporting articulation crossbeam. The supporting articulation crossbeam stretches across the bed rock palisades and is in an arch shape. The top face and the bottom face of the supporting articulation crossbeam are both arc-shaped faces bent downwards. Due to the fact that the vertical face of the arc-shaped door supporting articulation crossbeam is in the arch shape and the bottom face of the arc-shaped door supporting articulation crossbeam is in the arc shape, it can be guaranteed that the spillway top clearance allowance of the pressure-free high-speed water flow tunnel spillway is enough, flood discharge operation safety is guaranteed, tunnel chamber adjoining rock stability and construction safety are facilitated due to the arc-shaped top face, and tunnel chamber supporting investment can be greatly saved.
Description
technical field [0001] The invention relates to a hinged girder structure of an arc door of a high-speed water flow flood discharge tunnel, in particular to a hinged girder structure of an arc door of a high-speed water flow flood discharge tunnel buried underground. Background technique [0002] The working lock chamber of the underground curved gate of the high-speed water flood discharge tunnel is arranged at the part where the water flows from the section with pressure tunnel to the section without pressure tunnel, that is, the outlet of the pressure tunnel. The curved gate bears a large water thrust when blocking water, and the hinged girder of the working arc gate is arranged on the relatively complete and stable wall of the surrounding rock. The rock mass can be used to bear the water thrust from the gate, and the hinged girder and edge Stress condition of the wall. The bottom elevation of the hinged girder in the working lock chamber should leave enough headroom acc...
Claims
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IPC IPC(8): E02B8/06E02B7/42
Inventor 游湘蒙富强童建文鲁毅
Owner POWERCHINA CHENGDU ENG