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Special-shaped cross section surge shaft with reversely-suspended sluice chamber

A surge well and special-shaped technology, applied in the field of surge well structure, can solve the problems of not conforming to the development trend of new surge wells, large excavation and lining works, etc., so as to save excavation and concrete works, reduce The effect of excavation engineering volume and design optimization

Pending Publication Date: 2020-06-23
SINOHYDRO BUREAU 5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing surge wells generally adopt a circular conventional cross-section, and the amount of excavation and lining works is relatively large, which does not conform to the development trend of new surge wells

Method used

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  • Special-shaped cross section surge shaft with reversely-suspended sluice chamber
  • Special-shaped cross section surge shaft with reversely-suspended sluice chamber
  • Special-shaped cross section surge shaft with reversely-suspended sluice chamber

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] The special surge well provided by the present invention can be used in the construction of various types of hydropower stations. Unlike conventional surge wells, most of which are designed to be full circle, the characteristics of this type of surge well mainly include: 1. The cross-sectional structure is circular 2. The upper and lower parts of the surge shaft adopt different cross-sectional structures; 3. The hyperbolic dome structure is formed as the lock chamber of the surge shaft by expanding and excavating the surge shaft.

[0022] The present invention is a surge well with special-shaped cross-section containing an inverted lock chamber. Its specific structure is: the upper part of the surge well with special-shaped cross-section is the shaft 1 of the surge well. The cross-sectional structure of the wellbore 1 of the su...

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Abstract

The invention discloses a special-shaped cross section surge shaft with a reversely-suspended sluice chamber. A surge shaft mineshaft is arranged on the upper portion of the surge shaft, the surge shaft mineshaft is formed by intersection of a cylinder and a column with the sector-shaped cross section, the cross section of the surge shaft mineshaft is structurally formed by sequentially connectinga left arc, one straight line section, a right arc and the other straight line section end to end, the radius of the left arc is smaller than that of the right arc, an external corner is arranged atthe joint of one straight line section and the left arc, and an internal corner is arranged at the joint of the other straight line section and the right arc. A diversion tunnel is formed in the position, in front of the surge shaft mineshaft, of the lower end of the surge shaft mineshaft, and a power tunnel is arranged behind the surge shaft mineshaft. The reversely-suspended sluice chamber is dug behind the lower end of the surge shaft mineshaft, and a reversely-suspended sluice chamber dome of the reversely-suspended sluice chamber is a hyperbolic dome protruding outwards. A traffic tunnelis further formed in the reversely-suspended sluice chamber. According to the surge shaft, the excavating and lining engineering amount is reduced on the premise of meeting the functional requirements, and the surge shaft is an innovation and optimization on the basis of a traditional round surge shaft.

Description

technical field [0001] The invention relates to a special surge well structure, in particular to a special-shaped surge well with an inverted lock chamber. Background technique [0002] The surge shaft is a commonly used structure in the construction of hydropower stations. Generally, the wellbore is formed by excavating vertically downwards in the mountain to a certain depth. Its diameter and depth are determined comprehensively according to the design geology and hydraulic conditions. The surge well converts the inertial kinetic energy of the water flow in the pipeline into the potential energy of the water in the surge well (the water level in the well rises), so that the pipe section affected by the water hammer (water hammer) is as short as possible. The water level in the surge shaft will rise and fall reciprocally, and gradually decay under the action of water flow resistance. [0003] With the development of the water conservancy and hydropower industry, the excavat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B9/06
CPCE02B9/06Y02E10/20
Inventor 李亚东邵祥陈勇陈斌王千丁阳余泳潮周洪伟何维
Owner SINOHYDRO BUREAU 5
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