Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Anti-impact and wear-resistant concrete construction method for bottom plate of hydraulic tunnel

A technology for hydraulic tunnels and construction methods, which is applied to earth drilling, drainage, tunnels, etc., and can solve problems such as difficult construction organization, affecting operation safety, and inconvenient maintenance

Active Publication Date: 2021-08-06
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In high-velocity hydraulic tunnels, the concrete on the bottom plate and the small side walls on both sides is heavily eroded by water flow during operation. If the concrete structure is damaged, it will cause inconvenient maintenance, difficult construction organization, long processing time, high cost, and affect operational safety. A series of problems, so each project attaches great importance to how to solve this problem

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0084] A hydropower station is located in an alpine and high-altitude area, with climate characteristics: long winter, no summer, short spring and autumn, thin snow, strong wind and little precipitation. The average temperature for many years is 9.2°C, the extreme maximum temperature is 37.1°C, the extreme minimum temperature is -23.5°C, and the average annual precipitation for many years is 658mm , the maximum daily precipitation over the years is 43.3mm. The average temperature is low; the daily temperature range is large; the rainfall is significantly lower than the increase; the average annual evaporation for many years is 1200.2mm, and the average annual precipitation for many years is 658mm; positive and negative temperatures alternate frequently, and the number of annual freeze-thaw cycles reaches 40 times.

[0085] The hydropower station is the largest hydropower project currently under construction in Tibetan areas in China. It belongs to the most upstream level of the...

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 discloses an anti-impact and wear-resistant concrete construction method for a bottom plate of a hydraulic tunnel. By controlling raw materials in the construction process, excavating and supporting cavities, treating a foundation surface, optimizing a concrete mix proportion, controlling the construction quality of each working procedure on site, performing seepage prevention and cracking limitation of concrete, controlling the temperature, protecting a finished product and controlling on-site construction organization, the anti-impact and wear-resistant performance of high-flow-speed bottom plate concrete of the hydraulic tunnel is improved, and the engineering durability and the operation safety are improved. Through the measures, the anti-impact and wear-resistant performance of the concrete can be improved, the subsequent operation and maintenance work is reduced, the cost is effectively controlled, and the tunnel operation safety is guaranteed.

Description

technical field [0001] The invention relates to a concrete construction method, in particular to a construction method for anti-shock and wear-resistant concrete on the floor of a hydraulic tunnel. Background technique [0002] In high-velocity hydraulic tunnels, the concrete on the bottom plate and the small side walls on both sides is heavily eroded by water flow during operation. If the concrete structure is damaged, it will cause inconvenient maintenance, difficult construction organization, long processing time, high cost, and affect operational safety. And a series of problems, so each project attaches great importance to how to solve this problem. With the continuous improvement of hydropower engineering material technology and construction level, at present, most domestic hydraulic tunnel floor concrete adopts anti-shock and wear-resistant technology, mainly improving and improving raw materials. Many engineering facts have proved that improving the impact and wear ...

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
IPC IPC(8): E21D11/10E21F16/02E21F17/00E21F17/18
CPCE21D11/10E21D11/102E21F16/02E21F17/18E21F17/00Y02E10/20
Inventor 马军林钟南海康永林元晓平康成云周玉蓉何永召吴曙光
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com