CN105464005A - Method for repairing upper padstone through TGM bracket grouting materials - Google Patents
Method for repairing upper padstone through TGM bracket grouting materials Download PDFInfo
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- CN105464005A CN105464005A CN201510995829.4A CN201510995829A CN105464005A CN 105464005 A CN105464005 A CN 105464005A CN 201510995829 A CN201510995829 A CN 201510995829A CN 105464005 A CN105464005 A CN 105464005A
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- pinner
- tgm
- grouting material
- padstone
- grouting
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a method for repairing upper padstone through TGM bracket grouting materials. The method comprises the steps that an upper padstone formwork is machined and installed on a site, the upper end of the upper padstone formwork is attached to the lower surface of a main beam, the lower end of the upper padstone formwork and the lower surface of an upper steel board at the bottom of the upper padstone are located on the same horizontal face, and the inner face of the padstone formwork is attached to the periphery of the upper padstone to be repaired through split bolts; a grouting pipe is laid in the lower half portion of the lateral side of the padstone formwork and an exhaust pipe is laid in the upper half portion; the TGM grouting materials are blended, and the blended TGM grouting materials are grouted into the upper padstone to be repaired through the grouting pipe; the grouting materials are solidified until the solidification time reaches the set time threshold; water is sprayed to the surface layer, and a plastic film is wound for maintenance until the grouting materials are completely solidified. It is ensured that the inner side of the padstone formwork is attached to the periphery of the upper padstone to be repaired through the split bolts, and the problem that slurry cannot be controlled to not slip or splash without support at the bottom of the formwork is avoided; the exhaust pipe and the grouting pipe are arranged, so that it is ensured that gas generated in the grouting process is drained smoothly.
Description
Technical field
The present invention relates to field of track traffic, especially relate to a kind of method adopting pinner in the reparation of TGM (high-strength mending mortar) support grouting material.
Background technology
Bridge bearing pad stone is a slave part of bridge upper and lower part anatomical connectivity vitals bearing, and the setting of pinner is mainly the facility guaranteeing that bridge pad is installed, adjust, replace.The parts connected between girder and bearing are called as pinner, and the parts connected between bearing and bent cap or bridge pier are called as lower pinner.
In actual applications, under the growth along with service life and the repeated action in DYNAMIC LOADING OF DRIVING TRAIN ON BRIDGES, the different diseases such as there will be cracking, breakage, come to nothing, these harm easily cause potential safety hazard to track traffic safety operation to bearing pad stone.Therefore take a kind of shortest time, easy construction, expense low, minimum pinner repairing construction technology is affected on existing line, directive significance will be had for the construction of similar bearing pad stone disease management from now on.
For the situation of seriously coming to nothing between lower pinner and the lower steel plate bottom lower pinner, usually adopt and repair this lower pinner with the following method:
Arrange baffle plate in lower pinner surrounding to be repaired, bent cap is close to utilize this bent cap to withstand its lower end in the bottom of baffle plate; Outside baffle plate, winding steel wire makes the surrounding being attached to lower pinner to be repaired inside it; On lower pinner, add grout pipe, utilize this grout pipe to be poured into by slurries, slurries slowly flow into above pinner to be repaired and surrounding by self gravitation, and the gas produced in filling process is discharged by the aerial lower pinner upper surface of naked leakage.
Above-mentioned this method is only applicable to the reparation of lower pinner, but it is not suitable for upper pinner in-situ immobilization, this is because:
The top of upper pinner connects with girder, bottom is connected with bearing by upper steel plate, and the lateral cross section of bearing is generally less than the cross section bottom pinner, if merely adopt the restorative procedure of lower pinner, cannot fit with other place in the bottom of baffle plate first, therefore cannot ensure that slurries do not slip and spread; Two is bottoms that upper pinner is close to girder, and the gas produced in filling process cannot be got rid of, and its operating space is limited.
Therefore in the urgent need to a kind of method being suitable for upper pinner and repairing.
Summary of the invention
The object of the invention is the problem not being suitable for the reparation of upper pinner for existing lower pinner restorative procedure, a kind of method adopting pinner in the reparation of TGM support grouting material is provided, it can be repaired for the upper pinner that operating space is limited, and can ensure that the gas produced in filling process can be discharged smoothly.
Object of the present invention is achieved through the following technical solutions:
The invention provides a kind of method adopting pinner in the reparation of TGM support grouting material, it comprises:
Step S101, scene processes and installs pinner template, the upper end of this pinner template is affixed on girder soffit, and lower end and the upper steel plate soffit be positioned at bottom pinner are in a horizontal plane, and make the inner face of this pinner template be attached to upper pinner surrounding to be repaired by split bolt;
Step S102, bury grout pipe underground in the Lower Half of pinner template side, the first half buries stack underground;
Step S103, mixes and stirs TGM grouting material, and utilizes grout pipe to implement grouting with the TGM grouting material mixed to upper pinner to be repaired;
Step S104, waits for that grouting material solidifies until the setting time of grouting material arrives setting-up time threshold value;
Step S106, top layer water spray also winding plastic film carries out moisture-keeping maintaining, until grouting material thoroughly solidifies.
Further, also comprised before described step S106:
Step S105, grouting material solidifies pinner mould in rear dismounting.
Further, described pinner template comprises:
Long a pair panel, short a pair panel and one group of split bolt and respective fastener;
Described short panel is arranged between long a pair panel, and is arranged symmetrically with; Long a pair panel is provided with through hole, and the two ends of one group of split bolt is each passed through this through hole, and locks at two ends securing member.
Further, described step S102 comprises:
Offer grout hole at a side of pinner template or four sides, the least significant end of this grout hole is higher than the upper steel plate be positioned at bottom upper pinner; Arranging grout pipe makes its one end penetrate in this grout hole, and at link position glue good seal, the most significant end of this grout pipe exceeds the upper surface of pinner to be repaired;
Offer one or more steam vent in the first half of the side of pinner template, arrange stack and its one end is penetrated in this steam vent, and at link position glue good seal, the other end of this stack is higher than the upper surface of pinner to be repaired.
Further, the process of mixing and stirring TGM grouting material described in step S103 comprises:
Needed for the volume computing pouring into slurry as required, the consumption of grouting material, adds the mixing water of respective numbers according to match ratio, adopts machinery to add the method for siccative while stirring, is stirred to evenly.
Further, the described grout pipe that utilizes comprises the process that upper pinner to be repaired implements grouting with the TGM grouting material mixed:
Slowly poured into by the TGM grouting material mixed by grout pipe, grouting material under gravity, fills the cavity of pinner in closely knit repairing, and the gas produced in filling process is discharged along stack, when the upper surface of pinner template flows out slurry, completes grouting.
Further, the degree of mobilization of the TGM grouting material mixed and stirred described in is greater than 300mm, bleeding rate 0%, compressive strength 2h >=30Mpa, 28d >=50Mpa, rupture strength >=10MPa, 28d degree of free swelling 0.02-0.1%.
Further, described setting-up time threshold value is 50 minutes.
As can be seen from the technical scheme of the invention described above, the present invention has following technique effect:
The present invention by the fastening pinner template of split bolt, ensure that and is attached to upper pinner surrounding to be repaired inside pinner template, thus overcomes and not support uncontrollable slurries bottom template and do not slip the problem of spreading; By arranging stack and grout pipe at template side, can not only ensure that the gas produced in filling process is discharged smoothly, and overcome the limited problem in operating space.
Accompanying drawing explanation
Fig. 1 is implementing procedure figure of the present invention;
Fig. 2 is the structural representation after pinner template, stack and grout pipe are equipped with in the present invention;
In accompanying drawing:
Bearing 01, upper pinner 02, upper steel plate 03, pinner template 04, split bolt 14, stack 16 and grout pipe 17.
Detailed description of the invention
Below with reference to accompanying drawing, the present invention is described in further details.
Embodiment one:
The invention provides a kind of method adopting pinner in the reparation of TGM support grouting material, its implementing procedure as shown in Figure 1, comprising:
Step S101, scene processes and installs pinner template, the upper end of this pinner template is affixed on girder soffit, and lower end and the upper steel plate soffit be positioned at bottom pinner are in a horizontal plane, and make the inner face of this pinner template be attached to upper pinner surrounding to be repaired by split bolt.
The upper pinner template of on-the-spot processing, this template comprises long a pair panel, short a pair panel and one group of split bolt and respective fastener.Short panel is arranged between long a pair panel, and is arranged symmetrically with; Long a pair panel is provided with through hole, and the two ends of one group of split bolt is each passed through this through hole, and locks at two ends securing member.Long panel and short panel to arrange angle identical with the angle of the corresponding avris of upper pinner to be repaired.
Step S102, bury grout pipe underground in the Lower Half of pinner template side, the first half buries stack underground, forms structure as shown in Figure 2.
Offer grout hole at a side of pinner template or four sides, the least significant end of this grout hole is higher than the upper steel plate be positioned at bottom upper pinner; Arranging grout pipe makes its one end penetrate in this grout hole, and at link position glue good seal, as buried the pvc pipe of Φ 50mm underground as grout pipe, the most significant end of this grout pipe exceeds the upper surface of pinner to be repaired.
One or more steam vent is offered in the first half of the side of pinner template, arranging stack makes its one end penetrate in this steam vent, as adopted the pvc pipe of Φ 20mm as stack, and at link position glue good seal, the other end of stack is higher than the upper surface of pinner to be repaired.
In order to ensure that the position grouting of coming to nothing of upper pinner is enriched, can also the other end connecting bend of a grout pipe and/or stack wherein, the other end of its this elbow is upward.
In order to more ensure that the position grouting of coming to nothing of upper pinner is enriched, can also connect in elbow one end upward further and add senior executive.
Step S103, mixes and stirs TGM grouting material, and utilizes grout pipe to pour into upper pinner to be repaired by mixing TGM grouting material.
Mix and stir TGM grouting material: the consumption of grouting material needed for the volume computing pouring into slurry first as required, the mixing water of respective numbers is added according to match ratio, machinery is adopted to add the method for siccative while stirring, be stirred to evenly, make its degree of mobilization be greater than 300mm, bleeding rate 0%, compressive strength 2h >=30Mpa, 28d >=50Mpa, rupture strength >=10MPa, 28d degree of free swelling 0.02-0.1%.
Implement grouting: slowly pour the TGM grouting material mixed into grout pipe by grout pipe, under gravity, grouting material fills the cavity of pinner in closely knit repairing, and the gas produced in filling process is discharged along stack, when the upper surface of pinner template flows out slurry, complete grouting.
The slurry mixed was finished using in 30 minutes.Simultaneously field fabrication condition of equivalent test block, before metro operation, the intensity 2h >=30Mpa that meets design requirement provides check data.
Step S104, waits for that grouting material solidifies.
Wait grouting material solidifies, until the setting time of grouting material arrived setting-up time threshold value, as 50 minutes.
Step S105, grouting material solidifies pinner mould in rear dismounting.
Step S106, top layer water spray also winding plastic film carries out moisture-keeping maintaining, until grouting material thoroughly solidifies.
Embodiment two:
There is no the step S105 in embodiment one in the present embodiment, just say to retain yet and remove upper pinner mould, directly carry out the maintenance processes of step S106.
Although with preferred embodiment openly as above, embodiment does not limit the present invention in the present invention.Without departing from the spirit and scope of the invention, any equivalence change done or retouching, belong to the protection domain of the present invention equally.Therefore the content that protection scope of the present invention should define with the claim of the application is standard.
Claims (8)
1. adopt a method for pinner in the reparation of TGM support grouting material, it is characterized in that, in the reparation of described employing TGM support grouting material, the method for pinner comprises:
Step S101, scene processes and installs pinner template, the upper end of this pinner template is affixed on girder soffit, and lower end and the upper steel plate soffit be positioned at bottom pinner are in a horizontal plane, and make the inner face of this pinner template be attached to upper pinner surrounding to be repaired by split bolt;
Step S102, bury grout pipe underground in the Lower Half of pinner template side, the first half buries stack underground;
Step S103, mixes and stirs TGM grouting material, and utilizes grout pipe to implement grouting with the TGM grouting material mixed to upper pinner to be repaired;
Step S104, waits for that grouting material solidifies until the setting time of grouting material arrives setting-up time threshold value;
Step S106, top layer water spray also winding plastic film carries out moisture-keeping maintaining, until grouting material thoroughly solidifies.
2. a kind of method adopting pinner in the reparation of TGM support grouting material according to claim 1, is characterized in that, also comprised before described step S106:
Step S105, grouting material solidifies pinner mould in rear dismounting.
3. a kind of method adopting pinner in the reparation of TGM support grouting material according to claim 1 and 2, it is characterized in that, described pinner template comprises:
Long a pair panel, short a pair panel and one group of split bolt and respective fastener;
Described short panel is arranged between long a pair panel, and is arranged symmetrically with; Long a pair panel is provided with through hole, and the two ends of one group of split bolt is each passed through this through hole, and locks at two ends securing member.
4. a kind of method adopting pinner in the reparation of TGM support grouting material according to claim 3, it is characterized in that, described step S102 comprises:
Offer grout hole at a side of pinner template or four sides, the least significant end of this grout hole is higher than the upper steel plate be positioned at bottom upper pinner; Arranging grout pipe makes its one end penetrate in this grout hole, and at link position glue good seal, the most significant end of this grout pipe exceeds the upper surface of pinner to be repaired;
Offer one or more steam vent in the first half of the side of pinner template, arrange stack and its one end is penetrated in this steam vent, and at link position glue good seal, the other end of this stack is higher than the upper surface of pinner to be repaired.
5. a kind of method adopting pinner in the reparation of TGM support grouting material according to claim 4, it is characterized in that, the process of mixing and stirring TGM grouting material described in step S103 comprises:
Needed for the volume computing pouring into slurry as required, the consumption of grouting material, adds the mixing water of respective numbers according to match ratio, adopts machinery to add the method for siccative while stirring, is stirred to evenly.
6. a kind of method adopting pinner in the reparation of TGM support grouting material according to claim 5, is characterized in that, the described grout pipe that utilizes comprises the process that upper pinner to be repaired implements grouting with the TGM grouting material mixed:
Slowly poured into by the TGM grouting material mixed by grout pipe, grouting material under gravity, fills the cavity of pinner in closely knit repairing, and the gas produced in filling process is discharged along stack, when the upper surface of pinner template flows out slurry, completes grouting.
7. a kind of method adopting pinner in the reparation of TGM support grouting material according to claim 3, it is characterized in that, the degree of mobilization of the described TGM grouting material mixed and stirred is greater than 300mm, bleeding rate 0%, compressive strength 2h >=30Mpa, 28d >=50Mpa, rupture strength >=10MPa, 28d degree of free swelling 0.02-0.1%.
8. a kind of method adopting pinner in the reparation of TGM support grouting material according to claim 1, it is characterized in that, described setting-up time threshold value is 50 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995829.4A CN105464005B (en) | 2015-12-25 | 2015-12-25 | A kind of method of pinner in use TGM support groutings material reparation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995829.4A CN105464005B (en) | 2015-12-25 | 2015-12-25 | A kind of method of pinner in use TGM support groutings material reparation |
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| CN105464005A true CN105464005A (en) | 2016-04-06 |
| CN105464005B CN105464005B (en) | 2017-06-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188287A (en) * | 2020-01-14 | 2020-05-22 | 福建陆海工程勘察设计有限公司 | Combined method for efficiently repairing bridge support void |
| CN114370010A (en) * | 2022-01-21 | 2022-04-19 | 广东建科建筑工程技术开发有限公司 | Bridge support system repair structure and construction process |
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| JPH08296207A (en) * | 1995-04-25 | 1996-11-12 | Nakai Shoko Kk | Floor panel supporting grout leak stop curing material |
| CN102359073A (en) * | 2011-08-03 | 2012-02-22 | 中铁四局集团第五工程有限公司 | Grouting template structure for support of concrete simple-supported box girder |
| CN104480867A (en) * | 2014-12-16 | 2015-04-01 | 安阳市公路管理局 | Replacement and maintenance method of bridge foundation support padstone |
| CN204282219U (en) * | 2014-11-06 | 2015-04-22 | 中铁十五局集团有限公司 | A kind of large-scale bridge support grouting mould bases |
| CN105421254A (en) * | 2015-12-25 | 2016-03-23 | 北京市政建设集团有限责任公司 | In-situ repairing method of upper pinner of rail transit bridge support and pinner formwork |
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2015
- 2015-12-25 CN CN201510995829.4A patent/CN105464005B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08296207A (en) * | 1995-04-25 | 1996-11-12 | Nakai Shoko Kk | Floor panel supporting grout leak stop curing material |
| CN102359073A (en) * | 2011-08-03 | 2012-02-22 | 中铁四局集团第五工程有限公司 | Grouting template structure for support of concrete simple-supported box girder |
| CN204282219U (en) * | 2014-11-06 | 2015-04-22 | 中铁十五局集团有限公司 | A kind of large-scale bridge support grouting mould bases |
| CN104480867A (en) * | 2014-12-16 | 2015-04-01 | 安阳市公路管理局 | Replacement and maintenance method of bridge foundation support padstone |
| CN105421254A (en) * | 2015-12-25 | 2016-03-23 | 北京市政建设集团有限责任公司 | In-situ repairing method of upper pinner of rail transit bridge support and pinner formwork |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188287A (en) * | 2020-01-14 | 2020-05-22 | 福建陆海工程勘察设计有限公司 | Combined method for efficiently repairing bridge support void |
| CN111188287B (en) * | 2020-01-14 | 2021-10-01 | 福建陆海工程勘察设计有限公司 | Combined method for efficiently repairing bridge support void |
| CN114370010A (en) * | 2022-01-21 | 2022-04-19 | 广东建科建筑工程技术开发有限公司 | Bridge support system repair structure and construction process |
| CN114370010B (en) * | 2022-01-21 | 2022-10-25 | 广东建科建筑工程技术开发有限公司 | Bridge support system repair structure and construction process |
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| CN105464005B (en) | 2017-06-06 |
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