Pressure-grouting construction method for structure consolidation

A technology of pressure grouting and construction method, which is applied in the direction of building structure, building maintenance, construction, etc., can solve the problems of not being able to meet the compactness and affect the effective force transmission of the vertical structure, and achieve the effect of ensuring the construction quality and the compactness

Active Publication Date: 2008-03-12
SHANGHAI NO 7 CONSTR
View PDF0 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a pressure grouting construction method for structural reinforcement, which applies a certain pressure to the grouting material from the beginning of grouting to the initial setting of the grouting material for a period of time to ensure the grouting material itself. The compactness and the

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
  • Pressure-grouting construction method for structure consolidation
  • Pressure-grouting construction method for structure consolidation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] The present invention is used for the pressure grouting construction method of structural reinforcement, comprises the following steps:

[0018] (1) Carry out chiseling construction on the structural columns to be reinforced, and clean the structural surface: as shown in Figure 1, after the reinforcement construction of the upper structural concrete column 1 and the lower structural concrete column 2 is completed, the original structural floor of the middle layer is removed, And chiseling the concrete structural column 3 to be reinforced in the middle layer, fully watering and pre-wetting the concrete structural column 3 in the middle layer 24 hours in advance, so as to ensure that the column body in the grouting section is in a wet state before grouting, and clean up the garbage .

[0019] (2), as shown in Figure 2, assemble steel formwork 4 on the periphery o...

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 building construction method, in specific to a pressure grouting construction method for structural reinforcement in execution with a reverse operation method. The inveintion comprises the following steps: First of all, perform pre-treatment for reinforcement structural columns; then, make steel forms outside the structural columns, and open grouting ports and air exhausts on the form panels; meanwhile, connect a grouting device and a semi-U shaped tube on a secondary pressure device respectively with the grouting ports and the air exhausts; after the grouting is over and the grout material inside the steel form is initially hardened, the device grouting can fulfill secondary compression for the structural columns through arranging a hydraulic jack; thus, the invention can always guarantee certain pressure maintained on the grouting material during the period that starts with the beginning of grouting, and ends in the intial hardening of the grout material; meanwhile, the inventioin can also ensure compaction rate of the grouting material itself, and that of horizontal joints in vertical structural members. The invention adapts in particular to the following condition: In building reconstruction work, reinforcement is firstly executed from the center or top of structural members, so that it is not possible to perform concrete casting execution as usual from the top to the bottom of structural base layers.

Description

technical field [0001] The invention relates to a building construction method, in particular to a construction method for performing secondary pressure grouting under the condition of reverse construction. Background technique [0002] In the process of building reconstruction, the bottom-up construction process from the bottom of the structure is conventionally adopted, and the structure is reinforced by free grouting or one-time pressure grouting. This traditional reinforcement construction method uses the self-weight of the concrete to ensure the joints at the joints. Dense, therefore, only suitable for straight method construction. For special working conditions and construction schedule requirements, building reconstruction and reinforcement needs to be constructed from the middle or upper part of the structure first, and it is impossible to carry out construction from the bottom to the top of the structure as usual. If the conventional free grouting or one-time pressu...

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): E04G23/02
Inventor 王美华周军龚斌蔡良鑫陈辉尤雪春
Owner SHANGHAI NO 7 CONSTR
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