Top film water-retaining method for underwater canal lining overhaul

A lining and channel technology, which is applied in water conservancy projects, artificial waterways, sea area engineering, etc., can solve the problems of not being able to provide the base for channel section operations, destroying the lining of occupied areas, and high costs, and achieve simple structure, convenient transition in water, and Good water stop effect

Inactive Publication Date: 2015-11-11
贾永奕
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The economical and quick provision of the working base is the key technology to realize the maintenance of the lining during the water flow period. At present, the common water retaining schemes such as steel sheet pile cofferdam, earth-rock cofferdam, and caisson cofferdam not only have high cost and long construction period, but also generally cannot Provide a base for channel operations across both sides of the river, and at the same time may damage the lining of the occupied area

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Top film water-retaining method for underwater canal lining overhaul

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Attached below picture The present invention is described in further detail with specific embodiment:

[0012] like picture 1, the present invention is A top membrane water retaining method for underwater maintenance of channel lining , which includes the following construction process: on the edge of the flexible waterproof membrane 1 that needs to be sealed, a sealing layer 2 is installed on the back surface, and an assembly weight 3 is added on the front surface; The surface of the channel lining 4 in the area, and the unsealed edge of the flexible waterproof membrane 1 is exposed above the water surface on the shore.

[0013] Furthermore, the flexible waterproof membrane 1 is made of polyamide-impregnated canvas with increased density, which can sink to the bottom of the water by its own weight, and has hooks distributed on the water-facing surface for lifting on the water surface.

[0014] The sealing layer 2 is made of non-toxic polysulfide sealant, and is in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a top film water-retaining method for underwater canal lining overhaul. The top film water-retaining method comprises the following construction process steps: additionally installing a sealing layer on an edge needing to be sealed and a downstream face of a flexible waterproof film respectively, and additionally installing a counter weight on an upstream face; sinking downwards the downstream face of the flexible waterproof film into water, laying the flexible waterproof film on the surface of a canal lining in an area to be overhauled, and exposing the unsealed edge of the flexible waterproof film above the water level of water edge. The waterproof film in the top film water-retaining method disclosed by the invention is low in investment, simple in structure, environment-friendly in material selection, good in water-stopping effect, low in additional load, free from damages to the canal lining, convenient and fast to transport, install and transfer in water, capable of being supported by a floating crane, a movable maintenance cabin and a maintenance gallery, and the like to provide a flexible working space for lining maintenance on the provided working base surface, and also capable of being used as a rush emergency water-retaining curtain for preventing a slide area from expansion.

Description

technical field [0001] The invention relates to a water retaining method, in particular to a roof membrane water retaining method for underwater maintenance of channel lining, and belongs to the technical field of water conservancy engineering. Background technique [0002] Water diversion project is an important infrastructure to optimize the allocation of water resources across regions. Concrete-lined open channels have significant cost advantages and are widely used in engineering. If channel lining diseases such as cracks, erosion, waterproof failure, and landslides are not treated in time, serious Threats to the safety of water delivery in the project, for this reason, large-scale projects often carry out maintenance during the water supply period. Economically and quickly providing the working base is the key technology to realize the maintenance of lining during the water flow period. At present, the common water retaining schemes such as steel sheet pile cofferdam, e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E02B5/02E02B3/16
Inventor 贾永奕
Owner 贾永奕
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap