Drainage system of karst tunnel

A tunnel drainage and karst technology, which is applied in drainage, safety devices, mining equipment, etc., can solve the problems of reduced vacuum degree and difficult self-recovery of siphon effect, and achieve the effect of high frequency of action and prevention of silting

Active Publication Date: 2020-01-10
范云鹤
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Problems solved by technology

[0005] In view of the defect that when the tunnel siphon drainage method is used in the prior art, after the siphon effect is suspended due to the drop of the groundwater level, the vacuum degree in the siphon tube decreases, and the siphon effect is difficult to recover by itself

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  • Drainage system of karst tunnel
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[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0030] like Figure 1-Figure 4 Said, a kind of karst tunnel drainage system, the borehole 2 is set in the surrounding rock of the tunnel 1 where drainage is required, the siphon 3 is placed in the borehole 2, the water inlet of the siphon 3 is at the bottom of the borehole 2, the siphon 3 The water outlet is connected to the hydrodynamic device 5, the diameter of the siphon 3 is 4 mm, one end of the outlet pipe 6 is connected to the siphon 3, the other end of the...

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Abstract

The invention provides a drainage system of a karst tunnel and aims at solving the drainage problem in the tunnel construction process. Multiple drainage systems of the karst tunnel can be arranged along the two sides of the tunnel, water power devices are placed in side ditches of the tunnel and fixed to the bottoms of the side ditches, and each water power device comprises a water storage chamber, a vane cavity, a circular wheel, a vane groove, vanes, springs, a drainage pipe, a rotation shaft and water wheel blades; the water storage chambers, the drainage pipes and the vane cavities are connected, the circular wheels are arranged in the vane cavities and provided with the vane grooves, the two ends of each vane groove are provided with the vanes, the vanes are fixedly connected with the vane grooves through the springs, gaps of 1-2 millimeters exist between the upper edges of the circular wheels and the upper edges of the vane cavities, rotation of the circular wheels cannot be resisted by the vane cavities, the rotation shafts are connected with the circular wheels and the water wheel blades, and the water wheel blades are arranged in the side ditches.

Description

technical field [0001] The invention belongs to the field of tunnel engineering, is suitable for drainage of mountain tunnels, and in particular relates to a drainage system of karst tunnels. Background technique [0002] Tunnel engineering of railways and highways is an important and sensitive structure in the transportation infrastructure. It is greatly affected by the complexity of the geological environment and the closedness of the spatial structure. It has many disease problems and is difficult to maintain. Among them, after the tunnel drainage system is crystallized and blocked, the groundwater level in the tunnel site area will rise, the mechanical properties of the surrounding rock will deteriorate, and the lining will bear increased pressure, which will lead to a series of diseases such as road accumulation, lining cracking, and structural deformation, which will threaten operational safety. , affect the beautiful structure, reduce the service life, and the repair ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F16/02
CPCE21F16/02
Inventor 范雲鹤孙红月
Owner 范云鹤
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