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Detachable drain hole filter plug and installation method thereof

An installation method and filter plug technology are applied in water conservancy projects, sea area projects, coastline protection, etc., and can solve problems such as corridor water cannot be drained, blocked, and affect the stability of the corridor structure, so as to achieve simple construction, convenient cleaning or replacement, easy-to-handle effects

Active Publication Date: 2017-01-11
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the operation of the original design, with the continuous accumulation of fine particles, the original filter device, namely the filter geotextile, will be completely blocked, causing the water around the corridor to be unable to be discharged, thereby affecting the structural stability of the corridor

Method used

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  • Detachable drain hole filter plug and installation method thereof

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Such as figure 1 As shown, a detachable drainage hole filter plug is installed in the drain pipe 1, including a sandstone reverse filter cage 2 and a grouting plug 3, and the sandstone reverse filter cage 2 is installed at the bottom of the drain pipe 1 , one end of which protrudes from the drainage pipe 1 and is inserted into the porous concrete area 4 outside the corridor.

[0029] When implementing it:

[0030] Use a concrete drilling rig roughly the same diameter as the original drainage pipe 1 to drill through the original filter geotextile 9 and drill into a certain distance (about 10cm) in the porous concrete area 4; , 20~40mm stones are uniformly mixed according to the ratio of 1:14:5, and the sand and gravel reverse filter material is put into a woven plastic wire cage (the woven cage must have good deformability, and it can be squeeze...

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Abstract

The invention discloses a detachable draining hole filtering plug and an installation method thereof. The detachable draining hole filtering plug is installed in a draining pipe and comprises a gravel anti-filtering material cage and a grouting rammer. The gravel anti-filtering material cage is installed at the bottom of the draining pipe, and one end of the gravel anti-filtering material cage extends out of the draining pipe and is inserted into a porous concrete area of the outer side of a gallery. According to the detachable draining hole filtering plug and the installation method thereof, construction is simple, operation is easy, unnecessary artificial destruction cannot be caused on the concrete structure of the draining gallery, and cleaning or replacing can be conveniently conducted.

Description

technical field [0001] The patent of the invention relates to the clogging treatment of drainage holes in drainage corridors such as hydropower station dam bodies and underground powerhouses. Background technique [0002] The pumped storage power station is a hydropower station that uses the electric energy to pump water to the upper reservoir when the power load is low, and then releases water to the lower reservoir to generate electricity during the peak power load period. Also known as energy storage hydropower station. It can transform the excess electric energy when the grid load is low into high-value electric energy during the peak period of the grid. It is also suitable for frequency modulation and phase modulation, stabilizing the cycle and voltage of the power system, and it is suitable for emergency backup. It can also improve thermal power plants in the system and the efficiency of nuclear power plants. The construction of pumped storage power stations in my co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B8/06
Inventor 李斌肖国年殷苗苗
Owner STATE GRID CORP OF CHINA
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