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

Large excavation anticorrosion foundation of transmission line tower, and construction method

A technology of transmission lines and construction methods, which is applied in infrastructure engineering, protection devices, buildings, etc., can solve problems such as poor corrosion resistance, and achieve the effects of increasing durability, improving efficiency, and reducing maintenance costs

Pending Publication Date: 2018-04-10
NORTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The main purpose of the present invention is to solve the problem of poor corrosion resistance of existing transmission line tower foundations in medium and strong corrosion areas, to study the properties of various external anti-corrosion materials, and to design a new type of transmission line tower based on the characteristics of large excavation foundations. The anti-corrosion foundation and construction method greatly shorten the construction period and improve the corrosion resistance of the foundation. It is suitable for large excavation foundations in medium and strong corrosion areas, so that the iron tower foundation can work normally within the design service life

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
  • Large excavation anticorrosion foundation of transmission line tower, and construction method
  • Large excavation anticorrosion foundation of transmission line tower, and construction method
  • Large excavation anticorrosion foundation of transmission line tower, and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] Below in conjunction with accompanying drawing, the present invention is described in further detail, and described is explanation of the present invention rather than limitation.

[0050] The invention provides a construction method for large-scale excavation anti-corrosion foundation of transmission line towers. This construction method has been successfully applied in the 330kV transmission line project from Yuka (Lvliangshan) to Xitai that has been completed and put into production. 1233# foundation is taken as an example, and the specific embodiments are briefly described as follows:

[0051] The 1233# foundation is located in the saline soil area of ​​Qinghai Salt Lake. According to the judgment standard of "Code for Geotechnical Engineering Survey (2009 Edition)" (GB50021-2001), the foundation soil of this foundation has strong corrosion to the foundation concrete, and the foundation needs to be inspected. Anti-corrosion treatment improves the durability of the f...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a construction method of a large excavation anticorrosion foundation of a transmission line tower. The construction method comprises the steps of firstly excavating a foundation pit largely, preparing a concrete cushion in the foundation pit, and installing a glass fiber reinforced plastic (GRP) template bottom shell above the concrete cushion; binding foundation main bodysteel bars and column steel bars in the GRP template bottom shell, and meanwhile installing GRP template columns on the outer sides of the column steel bars; then, pouring concrete, and meanwhile installing a GRP template top shell and a FRP template top plate; and sealing the seams of GRP templates by plying epoxy resin matched with fiberglass fabric; and backfilling rammed earth after initial set of concrete. The foundation stated by the invention is high in durability and corrosion resistance, and applicable for construction of the transmission line tower at moderate and strong corrosion regions.

Description

technical field [0001] The invention relates to the technical field of foundations for transmission lines, in particular to an anti-corrosion foundation and a construction method for transmission line towers. The durability of the anti-corrosion foundation is greatly improved compared with ordinary foundations, and the construction period is greatly shortened. Background technique [0002] The safety and reliability of transmission line tower foundations are crucial to the safe operation of transmission lines. Because the foundation of the transmission line in the corrosion area is buried underground and is in contact with soil or water with high salt content all the year round, sulfate ions and chloride ions will slowly invade the interior of the foundation, causing corrosion and damage to the concrete until it loses its bearing capacity, seriously threatening Safe operation of the entire line. [0003] At present, the foundation design of domestic transmission line poles ...

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): E02D27/42E02D31/06E02D15/02
CPCE02D15/02E02D27/42E02D31/06
Inventor 魏鹏王学明王虎长苏赟管顺清袁俊沈巍巍朱梦伟胡程程刘军
Owner NORTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP
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