Embedded fixing structure for diversion steel penstock of hydropower station

A penstock and fixed structure technology, applied in the direction of hydropower station, hydropower, traditional hydropower energy, etc., can solve the problems of ecological environment and vegetation destruction, frequent maintenance during operation, difficult manufacturing and installation, etc., to protect the ecological environment , Conducive to the protection of the ecological environment, the effect of convenient installation and construction

Active Publication Date: 2014-09-24
CHINA WATER RESOURCES BEIFANG INVESTIGATION DESIGN & RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of expansion joint has the disadvantages of high structural cost, difficult manufacture and installation, and frequent maintenance during operation.
Moreover, the traditional layout methods have caused damage and impact on the ecological environment and vegetation to varying degrees.

Method used

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  • Embedded fixing structure for diversion steel penstock of hydropower station

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0018] like figure 1 As shown, the fixed structure of the buried water diversion penstock of the hydropower station of the present invention includes a penstock 1, and in the excavated trench, a concrete cushion 2 is laid at the bottom, and a drainage layer 3 is arranged on the concrete cushion 2. The drainage layer 3 is provided with a temporary support 11 as a track for laying the penstock and fixing the penstock. The penstock 1 is mounted on the temporary support 11. A contact layer 4 backfilled with different graded crushed stones is arranged on the outside of the penstock 1 in sequence. Force layer 5, cover heavy layer 7 and environmental protection layer 8.

[0019] A geotextile 6 for protecting the anticorrosion layer of the pressure steel pipe is laid between the contact layer 4 and the pressure steel pipe 1 .

[0020] A geotextile 12 ...

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PUM

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Abstract

The invention discloses an embedded fixing structure for a diversion steel penstock of a hydropower station. The embedded fixing structure comprises a steel penstock; a concrete cushion is paved at the bottom inside an excavated groove; a water discharging layer is arranged on the concrete cushion; a rail paved with the steel penstock and a temporary support for fixing the steel penstock are arranged on the water discharging layer; a steel penstock rack is arranged on the temporary support; and a contact layer, a force transmission layer, a weighing layer and an environment-friendly layer, which are full with different graded broken stones, are sequentially arranged at the outer side of the steel penstock. The steel penstock is entirely stable through the acting force between the steel penstock and a soil layer. The embedded fixing structure provided by the invention is beneficial to environment protection, simple installation and construction processes, engineering manufacturing cost conservation and the like, and brings about great environmental benefits, economical benefits and social benefits to engineering.

Description

technical field [0001] The invention relates to a fixed structure of a buried water diversion penstock steel pipe of a hydropower station, specifically a fixed structure of a buried water diversion penstock steel pipe in the soil of a high water head hydropower station for maintaining the overall stability of the steel pipe by the force between the penstock itself and the soil layer. Background technique [0002] The traditional layout of penstocks in hydropower stations is generally arranged above the ground. Generally, townships are required at the turnings to resist unbalanced water thrust. When the length of the straight pipe section exceeds 150m, concrete townships are set according to the structural requirements. The townships and buttresses are used to maintain the steel pipe of stability. [0003] In order to enable the steel pipe to freely deform along the direction of the pipe axis, expansion joints are generally arranged between the townships or on the downstream ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B9/06
CPCY02E10/22Y02E10/20
Inventor 张忠辉林德金于玉森杨海燕朱方君黄建文屈文杰
Owner CHINA WATER RESOURCES BEIFANG INVESTIGATION DESIGN & RES
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