CN103290808A - New improved method for sealing air discharge duct in joint grouting system - Google Patents
New improved method for sealing air discharge duct in joint grouting system Download PDFInfo
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- CN103290808A CN103290808A CN2012103199408A CN201210319940A CN103290808A CN 103290808 A CN103290808 A CN 103290808A CN 2012103199408 A CN2012103199408 A CN 2012103199408A CN 201210319940 A CN201210319940 A CN 201210319940A CN 103290808 A CN103290808 A CN 103290808A
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- seal
- air discharge
- discharge duct
- concrete
- joint grouting
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Abstract
The invention relates to an improved method for sealing an air discharge duct in a joint grouting system, and particularly provides the new improved method to solve the problems that the seal is easy to block by concrete grout if the seal is too loose and a joint surface can not be pulled out if the seal is too tight during a traditional grouting process. The new improved method comprises the following steps: firstly, pulling straight the lower edge (4) of a seal of a traditional L-shaped galvanized iron sheet (2) and lengthening the length of the seal; then, welding reinforcing steel bars or angle iron at intervals at the lower end and the upper end of the seal pulled straight, and after pouring, stretching the seal into the concrete to form a pulling handle (3); and finally, embedding the seal 1 cm into the concrete. The new improved method can successfully solve the problems in the traditional method that the air discharge duct is easy to block and the joint surface is difficult to pull out, so that the quality and process of the dam concrete joint grouting are improved.
Description
Technical field
The present invention relates to a kind of building operations architecture advances technology, particularly relate to improving one's methods of concrete joint grouting built-in fitting.Be particularly useful for the large-scale concrete engineering rapid construction.
Background technology
The joint grouting system partly is made up of seam face keyway, grout stop plate, grouting pipeline, grout cell, air discharge duct and stack etc.Air discharge duct is located at the grout blanket top near on the vertical lap seam face below the grout stop plate, forms by covering the thick galvanized sheet iron of 1.2 ~ 1.5mm (skin) on the triangle sulculus.Air discharge duct seals with the pre-buried iron nail that formerly waters in the piece and fixes.Spillage not when watering the piece concreting after fixing should being designed to of sealing, and seam when opening can in company with after water piece and open simultaneously.Because during conventional grout, it is to adopt the tin plate of L type to be fixed on the concrete wall by nailing that air discharge duct seals method commonly used, yet this method had both made concrete grout enter and be clogged easily, also can make the seam face too tightly can't draw back.
This shows, be to guarantee quality and the process of dam concrete joint grouting, butt joint grouting built-in fitting most critical or the air discharge duct mouth-sealing method that is prone to problem most studies and improvement has very important significance.
The information that is disclosed in this background of invention technology part only is intended to deepen the understanding to general background technology of the present invention, and should not be regarded as admitting or hint in any form that this information constitutes being prior art known in those skilled in the art.
Summary of the invention
At the above-mentioned problem that in joint grouting, occurs, the invention provides a kind of new method that air discharge duct seals in the joint grouting system of improving, the problem that solution air discharge duct that can be successful stops up, the seam face is difficult to draw back.
Concrete steps are:
1) L sections skin is stretching.This method will seal lower edge stretching after, prolonged and sealed length, make concrete grout in the process of building be difficult to enter and form filling in the air discharge duct;
2) add the weldering pull handle at the stretching upper and lower side that seals.This method with reinforcing bar or iron angular spacing be welded in and seal upper and lower end parts, stretch into after building and form pull handle in the concrete;
3) 2) the basis on will seal and embed concrete 1cm.
Particularly, what the present invention relates to that air discharge duct 1 seals in a kind of joint grouting system improves one's methods, and it is stretching that traditional L type tin plate 2 is sealed lower edge 4, adds welding steel muscle or angle bar in the stretching upper and lower side compartment of terrain of sealing.
Air discharge duct seals in joint grouting of the present invention system improves one's methods, and stretches into after described reinforcing bar or angle bar can being built and forms pull handle 3 in the concrete.
More particularly, with air discharge duct in the joint grouting of the present invention system seal improve one's methods in L type tin plate seal the embedding concrete, and described L type tin plate seals, and to embed the concrete degree of depth be 1cm.
The inventor is surprisingly found out that air discharge duct seals in the joint grouting of the present invention system improve one's methods can be successful the air discharge duct that exists of solution conventional method easily stop up, problem such as the seam face is difficult to draw back, thereby improve quality and the process of dam concrete joint grouting.
By the accompanying drawing of including this paper in and the specific embodiment that is used from explanation some principle of the present invention subsequently with accompanying drawing one, the further feature that method of the present invention has and advantage will become clear or more specifically be illustrated.
Description of drawings
Fig. 1 is schematic diagram of improving one's methods of the present invention.
Description of symbols in the accompanying drawing:
1, air discharge duct; 2, L shaped iron sheet; 3, pull handle; 4, iron sheet tail end; 5, first pour.
Should understand, appended accompanying drawing is not the technique of painting of simplifying slightly that has shown the exemplifying various features of basic principle of the present invention pari passu.Specific design feature of the present invention disclosed herein comprises that for example concrete size, direction, position and profile will partly be determined by the concrete environment that will use and use.
The specific embodiment
In a specific embodiment of the present invention, the present invention relates to the improvement new method that air discharge duct seals in a kind of joint grouting system, this method may further comprise the steps:
1) L sections skin 2 is stretching, the tail end 4 that is about to the L shaped iron sheet 2 on the air discharge duct 1 is stretching, seals length with prolongation, makes the concrete grout in the process of building be difficult to enter formation obstruction in the air discharge duct;
2) add weldering pull handle 3 at the stretching upper and lower side that seals, namely adopt reinforcing bar or iron angular spacing ground is welded in and seal upper and lower end parts, make reinforcing bar or iron angle stretch in formation pull handle 3 in the concrete after building;
3) 2) the basis on will seal and embed concrete 1cm, with further dwindle seal and concrete between the space.
Embodiment
In certain large hydraulic engineering in the joint grouting of longitudinal cofferdam RCCD (Roller Compacted Concrete Dam) figure, in 96 pre-buried pipelines of dam body section joint grouting, check before irritating that to have 26 obstructed, wherein 20 is stack.Causing the obstructed reason of a large amount of stacks, is that cement bonded sand flows into air discharge duct, has caused the obstruction of air discharge duct because during Construction of Rolled Concrete Dam, near the modified concrete the seam face is in the process of vibrating.Successfully solved the existing problem of conventional method after adopting of the present invention improving one's methods, through using in main body section such as its flood discharge monoliths of certain major works, proving effect is good.
Claims (4)
1. what air discharge duct sealed in the joint grouting system improves one's methods, and it is characterized in that, it is stretching that L type tin plate (2) is sealed lower edge (4), adds welding steel muscle or angle bar in the stretching upper and lower side compartment of terrain of sealing.
2. what air discharge duct sealed in the joint grouting as claimed in claim 1 system improves one's methods, and it is characterized in that, stretches into after described reinforcing bar or angle bar are built and forms pull handle (3) in the concrete.
3. what air discharge duct sealed in the joint grouting as claimed in claim 1 system improves one's methods, and it is characterized in that, L type tin plate is sealed the embedding concrete.
4. what air discharge duct sealed in the joint grouting as claimed in claim 3 system improves one's methods, and it is characterized in that, described L type tin plate seals and embeds the concrete degree of depth is 1cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103199408A CN103290808A (en) | 2012-08-31 | 2012-08-31 | New improved method for sealing air discharge duct in joint grouting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103199408A CN103290808A (en) | 2012-08-31 | 2012-08-31 | New improved method for sealing air discharge duct in joint grouting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103290808A true CN103290808A (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103199408A Pending CN103290808A (en) | 2012-08-31 | 2012-08-31 | New improved method for sealing air discharge duct in joint grouting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN103290808A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953050A (en) * | 2014-04-14 | 2014-07-30 | 中国葛洲坝集团三峡建设工程有限公司 | Concrete bonding surface secondary grouting device and concrete bonding surface secondary grouting method |
| CN108457186A (en) * | 2017-12-27 | 2018-08-28 | 上海市政工程设计研究总院（集团）有限公司 | Precast assembly bridge pier modular level splicing seams grouting exhaust structure and grouting method |
Citations (5)
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| US5449248A (en) * | 1992-03-30 | 1995-09-12 | Hydro-Quebec | Sealing device for expansion joints of concrete dams and method for installing same |
| CN102108692A (en) * | 2011-01-04 | 2011-06-29 | 中国水电顾问集团中南勘测设计研究院 | Roller compacted concrete dam and slit forming method thereof |
| CN201908307U (en) * | 2010-12-08 | 2011-07-27 | 中国水电顾问集团成都勘测设计研究院 | Joint grouting system |
| CN201933464U (en) * | 2010-12-08 | 2011-08-17 | 中国水电顾问集团成都勘测设计研究院 | Joint riding arising pipe structure for forming concrete joint grouting |
| CN102383398A (en) * | 2011-10-09 | 2012-03-21 | 中国水电顾问集团西北勘测设计研究院 | Grouting and venting system of roller compacted concrete dam inducing joint seam and construction technology thereof |
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2012
- 2012-08-31 CN CN2012103199408A patent/CN103290808A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5449248A (en) * | 1992-03-30 | 1995-09-12 | Hydro-Quebec | Sealing device for expansion joints of concrete dams and method for installing same |
| CN201908307U (en) * | 2010-12-08 | 2011-07-27 | 中国水电顾问集团成都勘测设计研究院 | Joint grouting system |
| CN201933464U (en) * | 2010-12-08 | 2011-08-17 | 中国水电顾问集团成都勘测设计研究院 | Joint riding arising pipe structure for forming concrete joint grouting |
| CN102108692A (en) * | 2011-01-04 | 2011-06-29 | 中国水电顾问集团中南勘测设计研究院 | Roller compacted concrete dam and slit forming method thereof |
| CN102383398A (en) * | 2011-10-09 | 2012-03-21 | 中国水电顾问集团西北勘测设计研究院 | Grouting and venting system of roller compacted concrete dam inducing joint seam and construction technology thereof |
Non-Patent Citations (1)
| Title |
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| 长办丹江口设计代表组: "丹江口混凝土坝接缝灌浆系统设计中的一些体会", 《人民长江》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953050A (en) * | 2014-04-14 | 2014-07-30 | 中国葛洲坝集团三峡建设工程有限公司 | Concrete bonding surface secondary grouting device and concrete bonding surface secondary grouting method |
| CN108457186A (en) * | 2017-12-27 | 2018-08-28 | 上海市政工程设计研究总院（集团）有限公司 | Precast assembly bridge pier modular level splicing seams grouting exhaust structure and grouting method |
| CN108457186B (en) * | 2017-12-27 | 2023-12-29 | 上海市政工程设计研究总院（集团）有限公司 | Grouting and exhausting structure and grouting method for horizontal spliced seam of prefabricated spliced pier components |
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Application publication date: 20130911 |