Hydraulic Tunnel Structure and Its Opening Method

Abstract

The invention discloses a hydraulic tunnel structure and an opening method for opening the hydraulic tunnel structure and belongs to the technical field of hydraulic building design and manufacture. The hydraulic tunnel structure is simple and very low in construction cost. The opening method is used for opening the hydraulic tunnel structure. The hydraulic tunnel structure comprises a hydraulic tunnel body and further comprises plugged section concrete and a flowing-through device arranged in the plugged section concrete in the flowing-through direction of the hydraulic tunnel body. The hydraulic tunnel body is sealed through the plugged section concrete, and the sealed hydraulic tunnel body achieves flowing by switching on the flowing-through device arranged in the plugged section concrete. The opening method comprises the steps of confirming the breakage force of connecting bolts, confirming and manufacturing a blasting cutting explosive according to the breakage force, placing the blasting cutting explosive at the connecting position of two connecting bolts, starting the blasting cutting explosive to blast a seal head and the like.

Description

technical field [0001] The invention relates to a hydraulic tunnel structure, which belongs to the technical field of design and manufacture of hydraulic structures. The invention also provides an opening method for opening the hydraulic tunnel structure in an emergency. Background technique [0002] As an indispensable part of engineering construction and operation, the tunnel structure, which has a low frequency of use, is closed for a long time, and can be opened smoothly in an emergency, exists in a large number in various construction projects. The vent tunnel and super flood tunnel of the hydropower station belong to this type of tunnel structure. The emptying hole is generally only used for emptying the reservoir when it is necessary to overhaul the dam body or the upstream dam surface and other buildings immersed in the reservoir at ordinary times. However, the super flood tunnels of the hydropower station are only used when the conventional flood tunnels cannot me...

AI Technical Summary

Problems solved by technology

[0003] Taking hydraulic steel gates as an example, the cost of steel gates in water conservancy and hydropower construction is generally high, especially for deep-water steel gates with high working heads such as vent holes or super flood discharge tunnels, which are even more expensive. The accessories required for the operation of steel gates Buildings are more expensive, and the usual maintenance costs are higher

For hydraulic tunnels with low frequency of use, such as vent tunnels or very spillway tunnels, the cost of two high-head steel gates and their ancillary buildings is too high, but they are indispensable

Moreover, the deepwater gates have been blocking water for a long time, and it is difficult to maintain the water stop. The steel components such as the gates have been soaked underwater for a long time, and there are few opportunities to use them. The opening and closing facilities have been idle for a long time. It is often difficult to really play its role

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