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

Method for identifying cross joint state during arch dam construction period

An identification method and technology of transverse joints, which can be used in water conservancy projects, marine engineering, measuring devices, etc., and can solve the problems of complex structural stress and lack of clear and unified methods.

Active Publication Date: 2012-07-18
TSINGHUA UNIV +1
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2. The structure is complex
However, there is currently no clear and unified method for identifying the behavior of transverse joints based on monitoring data, and the specification only stipulates the minimum opening of the joint surface required for the grouting of transverse joints. A method of being present at all times is desperately needed

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 identifying cross joint state during arch dam construction period
  • Method for identifying cross joint state during arch dam construction period
  • Method for identifying cross joint state during arch dam construction period

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0037] Based on the prior art, the invention realizes the identification of the behavior of the transverse joints during the construction period of the arch dam by arranging instruments and formulating relevant criteria. The specific method can be implemented as follows:

[0038] 1) During the construction period, a transverse joint gauge 2 is deployed at the transverse joint 3 to obtain the monitoring value of the opening degree of the transverse joint 3 in real time, and the collected data and information on the grouting time of each grouting area are input to the data processing unit, and the transverse joint is measured The layout of meter 2 is as follows:

[0039] a) In the vertical direction, arrange transverse seam gauges in 4 irrigation areas or at intervals of 1 to 2 irrigation areas;

[0040] b) In the direction of the transverse river, install transverse joint gauges at all or at least half of the transverse joints 3;

[0041] c) Along the direction of the river, ...

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

A method for identifying the cross joint state during an arch dam construction period is a method which adopts an opening monitoring value of a cross joint meter to identify the cross joint state during the arch dam construction period according to a series of criterions, and relates to the technical guidance of arch dam cross joint construction. According to the method, all criterion threshold values are preset according to engineering data statistical analysis, engineering experience and the like, the cross joint meter is used to monitor the opening of a cross joint in real time, and the correlation indexes are calculated according to the criterions for identifying the cross joint state. The method has the characteristics of simple and easily understood criterions, accurate judging and simplicity for operation, has an obvious effect on real-timely and accurately mastering the cross joint real working state during the arc dam construction period, and can provide effective basis for opportunity selection, cross joint surface treatment and other strategies when grouting is carried out.

Description

technical field [0001] The invention relates to an identification method for the working behavior of transverse joints during the construction period of an arch dam, and relates to the field of technical guidance for the construction of transverse joints of concrete dams. Background technique [0002] The transverse joints set perpendicular to the dam axis can meet the needs of subsidence during the construction period by separating the dam body to adapt to the terrain and geological changes of the valley where it is located; reserve space to adapt to the expansion of the dam section caused by the temperature rise and temperature changes during pouring of concrete; Increase the heat dissipation surface to facilitate heat dissipation to meet the need to prevent cracking; pour in sections and blocks to meet construction needs. During construction, it is necessary to lay out keyways layer by layer on the transverse joint surface to meet the needs of shear force. At an appropri...

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): G01N19/08G01B21/02E02B3/16
Inventor 胡昱李庆斌林鹏罗丹旎周绍武汪志林左正
Owner TSINGHUA UNIV
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