Method for reinforcing caisson of concrete dam

A technology for concrete dams and concrete dams, applied in water conservancy projects, sea area projects, building maintenance, etc., can solve problems such as the need for underwater construction, great impact on dam operation, and poor anti-seepage performance of dams, etc., to achieve reduction The effect of reducing the amount of concrete in construction, reducing the requirements for construction equipment, and reducing construction costs

Inactive Publication Date: 2008-10-15
TSINGHUA UNIV
View PDF1 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Reinforcement behind the dam does not need to empty the reservoir and reduce the impact of reinforcement construction. However, reinforcement behind the dam is generally not conducive to improving the anti-seepage performance of the dam, especially for dams with powerhouses behind the dam, it is more difficult to use reinforcement behind the dam
Reinforcement...

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
  • Method for reinforcing caisson of concrete dam
  • Method for reinforcing caisson of concrete dam
  • Method for reinforcing caisson of concrete dam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0025] Further illustrate embodiment of the present invention below in conjunction with accompanying drawing, and specific mode can be implemented according to the following steps:

[0026] 1) Fix the caisson 1 at a distance of 1 to 2 m from the upstream surface of the concrete dam body 2 to be reinforced, and sink the caisson 1 to the mud surface 3 . The caisson 1 is a prefabricated reinforced concrete structure or a cast-in-place reinforced concrete structure, such as figure 1 shown.

[0027] 2) Remove the silt in the caisson 1 to the bedrock surface 4 or below the bedrock surface, such as figure 2 shown. Multiple caissons are arranged along the length of the dam in the dam section to be reinforced to form caisson groups 5, such as image 3 shown.

[0028] 3) Using the riprap-type rockfill concrete construction method, the well grid of the caisson 1 is used as the pouring warehouse surface of the riprap-type rockfill concrete 6, and the rockfill concrete of each caisson...

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
Lengthaaaaaaaaaa
Widthaaaaaaaaaa
Depthaaaaaaaaaa
Login to view more

Abstract

The invention provides a method for reinforcing a concrete dam by caissons, relating to a method for reinforcing a concrete dam. In the reinforcing method, caissons are arranged in the front dam section of the dam needing to be reinforced, forming a caisson group; reinforced concrete caissons are used as the construction surface of riprap type rock-fill concrete, and the riprap type rock-fill concrete is used to quickly backfill box grids of the caissons and the connection between the caissons and the dam body, and conventional type rock-fill concrete is used to concrete up to the design elevation, and the front-dam reinforcement of the concrete dam is completed. The method does not need to empty a reservoir, thereby the construction is easy and convenient, and effects of improving the construction efficiency and saving the construction cost are obviously; moreover, the method has the advantages of high compaction degree of the formed riprap type concrete filling caisson structure, little cement amount, low hydration temperature rise, good volume stability, good impermeability, excellent comprehensive performance, energy conservation and environmental protection, etc.

Description

technical field [0001] The invention relates to a reinforcement method for a concrete dam, in particular to a reinforcement method in which a riprap type rockfill concrete is used to bury a caisson when reinforcement is performed in front of the concrete dam. Background technique [0002] During long-term operation, concrete dams often crack under various loads, which affects the safety and impermeability of the dam, reduces the durability of the dam, and requires reinforcement. In the reinforcement project, according to the actual situation of different dams, methods such as surface treatment of the dam body, grouting treatment, reinforcement behind the dam and reinforcement in front of the dam can generally be used. [0003] Generally speaking, the surface treatment of the dam body is only suitable for the case where there is a dry working face, and it is more suitable for the surface cracks on the downstream surface of the dam body or on the top of the dam body. Where th...

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): E02B1/00E02B7/00E04G23/02
Inventor 金峰安雪晖段云岭黄绵松何世钦周虎
Owner TSINGHUA UNIV
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