Unlock instant, AI-driven research and patent intelligence for your innovation.

Rock-fill dam face plate longitudinal joint molding formwork and molding method

A technology for forming templates and rockfill dams, which is applied in the direction of dams, barrages, weirs, etc., and can solve problems such as deterioration, cracking of panels, etc.

Active Publication Date: 2016-04-13
CHINA GEZHOUBA (GRP) FIRST ENG CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a rockfill dam face plate longitudinal seam forming formwork and forming method, which can avoid the temperature and constraints in the strengthening period of the face plate of the later poured block being transferred to the face plate of the first poured block, causing the face plate to crack or make the crack worse defect

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
  • Rock-fill dam face plate longitudinal joint molding formwork and molding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 Among them, a rockfill dam face longitudinal seam forming formwork, including a formwork 1, the formwork 1 is located between the pre-poured block face concrete 7 and the post-poured face face concrete 8, and the formwork 1 is covered with at least one film layer. With this structure, it is convenient to take out the formwork 1 from between the concrete 7 of the face of the pouring block and the concrete 8 of the face of the post pouring block after pouring. In this way, the defect of panel cracking or crack deterioration due to heat dissipation during the enhanced deformation period of the post-cast block face plate concrete 8 is avoided, or the volume deformation constraint of the post-cast block face plate concrete 8 causes panel cracking or crack deterioration defects. The film layer acts as a "release agent" when the plank 1 is taken out, preventing the concrete from being disturbed when the plank 1 is taken out.

[0028] If the formwork 1 adopts ...

Embodiment 2

[0037] On the basis of embodiment 1, a kind of forming method that adopts above-mentioned rockfill dam face longitudinal seam forming template, comprises the following steps:

[0038] 1. Before pouring the panel concrete 8 of the post-casting block, the formwork 1 coated with the film layer and the panel concrete 7 of the first-casting block are fixedly connected through the fixing block 4; one side of the fixing block 4 is connected with the panel concrete 7 of the first-casting block Connection, the other side of the fixed block 4 is connected with the formwork 1 through iron nails. Template 1 in this example adopts wood board, PVC board or composite board. The length is 1.5m~2m, and its shape is made according to the design requirements of the longitudinal seam, and it is required to be flat without splicing.

[0039] In a preferred solution, in Step 1, a V-groove forming component 5 is installed on the top of the template 1 . In order to take out the template 1 later.

...

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 provides a rock-fill dam face plate longitudinal joint molding formwork and a molding method. The rock-fill dam face plate longitudinal joint molding formwork comprises a formwork body. The formwork body is located between pre-poured block face plate concrete and post-poured block face plate concrete and wrapped by at least one film layer. Before pouring of the post-poured block face plate concrete, the formwork body wrapped by the film layers is mounted, and the post-poured block face plate concrete is poured; before solidification, the film layers are cut open, the formwork body is taken out, and then the film layers are taken out; and rock-fill dam face plate longitudinal joint molding is achieved through the steps. According to the scheme that the formwork body wrapped by the film layers is adopted for replacing foam jointing plate embedding, the defect that due to existing longitudinal joint molding, heat dissipation in the face plate concrete reinforcement deformation period is not facilitated, and consequently a face plate cracks or cracks deteriorate can be overcome. The defects that due to the fact that post-poured block face plate concrete and pre-poured block face plate concrete are in contact within a small local range, size deformation constraints are caused, and the face plate cracks or the cracks deteriorate are overcome.

Description

technical field [0001] The invention relates to the construction field of face rockfill dams, in particular to a formwork suitable for forming longitudinal joints in long face dams and a forming method. Background technique [0002] At present, there are two methods for longitudinal seaming of rockfill dam panels. One is to pre-embed the foam caulking plate in the side form of the panel during the concrete pouring of the face plate of the first pouring block, and the other is to pre-embed the foam caulking plate in the position of the longitudinal joint to form a seam during the concrete pouring of the face plate of the subsequent block. Both methods are permanently buried into seams. These two seaming methods have common disadvantages: [0003] 1. During the strengthening period, the heat of the panel concrete of the post-cast block is transferred to the panel concrete of the first-cast block, and the heat dissipation is limited, so that the concrete of the first-cast blo...

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
Patent Type & Authority Applications(China)
IPC IPC(8): E02B7/06
CPCE02B7/06
Inventor 黄静张诗云罗小兵蔡旺林曹运磊李新明万团刘世艳熊建武张慧胡方华
Owner CHINA GEZHOUBA (GRP) FIRST ENG CO LTD