CN104404844A - Method for repairing and reinforcing open joint of filling layer of slab ballastless track - Google Patents
Method for repairing and reinforcing open joint of filling layer of slab ballastless track Download PDFInfo
- Publication number
- CN104404844A CN104404844A CN201410654789.2A CN201410654789A CN104404844A CN 104404844 A CN104404844 A CN 104404844A CN 201410654789 A CN201410654789 A CN 201410654789A CN 104404844 A CN104404844 A CN 104404844A
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- China
- Prior art keywords
- gap
- filling bed
- ballastless track
- track structure
- grouting
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/09—Ballastless systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Railway Tracks (AREA)
Abstract
The invention discloses a method for repairing and reinforcing an open joint of a filling layer of a slab ballastless track and belongs to the technical field of high speed railway engineering maintenance. The method comprises the following steps of drilling and anchoring a slab of the track with the open joint; grouting and repairing an open joint area of the filling layer. The method solves the problem that an effective method for repairing the open joint of the filling layer is lacked in the prior art; the method is simple and quick in procedures and easy to implement, can effectively eliminate the open joint of the filling layer of the slab ballastless track structure, ensures that the requirement on high speed running is met after repair, can be used for repairing and reinforcing the open joint of the filling layer of the slab ballastless track of a high speed railway, and can also be used for repairing and reinforcing other projects with layered structures.
Description
Technical field
The invention belongs to high-speed railway work business maintenance field, be specifically related to a kind of platy ballastless track structure filling bed gap repairing and reinforcement technology.
Background technology
Plate-type ballastless track has the features such as orbital forcing is high, rigidity uniformity is good, stability is strong because of it, becomes the primary trace structural shape that China's speed per hour 300 kilometers of high-speed railways adopt.The high-speed railways such as China is Beijing-Shanghai, Beijing-to-Shijiazhuang is military, Beijing-Tianjin, Tianjin Qin, Harbin-to-Dalian, Shanghai and Nanjing, Shanghai-Hangzhou, Ningbo-Hangzhou, Hangzhou-Zhejiang, conjunction freshwater mussel all adopt platy ballastless track structure.Platy ballastless track structure is primarily of formations such as precast track plate, filling bed, concrete bed or hydraulicity supporting beds, CRTS I-type plate-type ballastless track structure middle orbit plate adopts block construction, and CRTS II plate-type non-fragment orbit middle orbit plate adopts vertical connection structure.Between track plates and base the major function of filling bed be filling, support, load, power transmission and suitable malleable is provided.The cement emulsified asphalt mortar of the filling bed employing of CRTS I-type plate-type non-fragment orbit and CRTS II plate-type non-fragment orbit, what CRTS type III platy ballastless track structure and roadbed section track switch platy ballastless track structure filling bed adopted is self-compacting concrete.
Engineering practice shows, platy ballastless track structure middle orbit plate affects by temperature gradient and easily produces buckling deformation, easily causes producing gap between track plates and filling bed, causes track plates and filling bed adhesion stress to be lost, impacts the stability of track structure.Platy ballastless track structure filling bed only has side small part to be visible part, major part constructional aspect is invisible, the gap that its lamellar character determines filling bed repairs the large feature of difficulty, in platy ballastless track structure filling bed gap recovery technique, focus mostly at present in filling bed gap slip casting repair materials and slip casting renovation technique.Result of study shows, because high-speed railway is in outdoor Service Environment, often very moist in filling bed gap, even there is a large amount of open fire, in such a situa-tion, be difficult to by means of only gap slip casting the caking property and the adhesive power that recover filling bed and track plates or bed plate.In filling bed gap repairing and reinforcement, there is no effective restoring and fastening method at present.
For the present situation of existing shortage platy ballastless track structure filling bed gap restoring and fastening method, the present invention proposes a kind of method being applicable to platy ballastless track structure filling bed gap repairing and reinforcement.
Summary of the invention
Goal of the invention: for the present situation of existing shortage platy ballastless track structure filling bed gap restoring and fastening method, the present invention proposes a kind of method being applicable to platy ballastless track structure filling bed gap repairing and reinforcement.
Technical scheme: in order to realize above object, the invention provides a kind of platy ballastless track structure filling bed gap restoring and fastening method, it comprises the following steps:
1), at filling bed gap area track plate face vertical drilling;
2), anchoring is carried out at track plates face bore position;
3), slip casting reparation is carried out for filling bed gap region.
Described anchorage style can take the one in pin anchoring, reinforcing steel implant anchoring, chemical anchoring;
The temperature range of described anchoring construction is 5-35 DEG C.Preferred anchoring construction temperature range is 15-30C.
Described slip casting renovation technique comprises gap cleaning, grouting port is set, gap is closed, gap slip casting, complete the operations such as reparation, be specially: first clear up filling bed gap ambient dust, impurity, and grouting port is set on gap, then rapid curing joint seal material is adopted to close to gap region, after joint seal material cured, two component self-mixing grouting machine is adopted in gap, to inject macromolecule injecting paste material by grouting port, after gap slip casting completes, removal grouting port and joint seal material can complete reparation, described macromolecule injecting paste material is rapid curing dual-component polyurethane injecting paste material or epoxy resin injecting paste material or acrylic resin injecting paste material.
The described grouting port that arranges is buried underground Grouting Pipe mode completed by bonding grouting nozzle or boring, and grouting port spacing is 65 ~ 130cm, when adopting boring to bury Grouting Pipe underground, and drilling depth 5 ~ 15cm.
Described rapid curing joint seal material is the one in acrylic compounds clay, epoxy resin daub, polyurethane clay, and its hardening time is less than 20min, and viscosity is greater than 20000mPas.
Described dual-component polyurethane injecting paste material two component ratio is 1: 1, and injecting paste material is less than 30min hardening time, and viscosity is less than 100mPas, and 2h hot strength is greater than 15MPa, and elongation at break is greater than 5%, and adhesion strength is greater than 3MPa.
The described pair of component self-mixing grouting machine adopts to be had segmentation-displacement-again converge the stepped of effect or helical form static mixer and realizes the efficient automatic of two-component materials and mix.
The method of the invention, is applicable to the repairing and reinforcement of platy ballastless track structure filling bed gap, is also applicable to the repairing and reinforcement that other has the concrete structure gap of layer structure, as the repairing and reinforcement of double-block ballastless track bed board and supporting bed gap.For guaranteeing non-fragment orbit ride comfort, durability and operation safety, ensure that track structure safety military service within design period has important social effect.
Beneficial effect: platy ballastless track structure filling bed gap restoring and fastening method provided by the invention, through repeatedly field repair application discovery, relatively existing method has the following advantages:
(1) operation of the present invention is simple and quick, easy to implement, effectively can solve platy ballastless track structure filling bed gap disease, meet the requirement of high speed traveling after reparation;
(2) repairing and reinforcement of the present invention is effective, effectively can prevent the generation again of filling bed gap disease;
(3) three processing steps involved in the present invention can be divided in three skylight maintenace points and completing, and one day processing step, can complete the repairing and reinforcement of filling bed when not affecting driving;
(4) select liquid two-component polyurethane injecting paste material, good, the easy perfusion of viscosity hyposmosis performance is full, curing rate is fast, adhesion strength is high, can meet in Window time the demand completing reparation.
Accompanying drawing explanation
Fig. 1 is CRTS II type ballastless track boards anchorage point schematic diagram in the present invention.
In Fig. 1, be can anchorage point in " ten " position.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
A kind of platy ballastless track structure filling bed gap restoring and fastening method described by the present embodiment, it comprises the following steps:
1), at filling bed gap area track plate face vertical drilling;
2), anchoring is carried out at track plates face bore position;
3), slip casting reparation is carried out for filling bed gap region.
Step 1) in: according to track plates filling bed gap situation determination filling bed gap area track twist drill hole number, drilling hole amount can refer to standard:
A) when track plates gap width is greater than 8mm, 20 can be holed, namely all hole at each track;
B) when track plates gap width is greater than 5mm, 16 can be holed, namely in the 1st, 3,4,5,6,7,8,10 track borings;
C) when track plates gap width is greater than 4mm, 12 can be holed, namely in the 1st, 3,5,6,8,10 track borings;
D) when track plates gap width is greater than 3mm, 8 can be holed, namely in the 1st, 4,7,10 track borings;
E) when track plates gap width is less than 3mm, 4 can be holed, namely the 1st, 10 tracks or the boring of the 2nd, 9 tracks.
Boring particular location is with reference to figure 1.
First adopt marking pen to carry out mark at bore position before boring, hole at employing water drilling, steel planting 30-50mm, drilling depth changes according to the thickness of filling bed, to be positioned at bed plate bottom anchor hole or support deck 150-200mm is as the criterion.
Step 1) complete in first skylight point.
Step 2) in: anchorage style takes the one in pin anchoring, reinforcing steel implant anchoring, chemical anchoring, and the temperature range of anchoring construction is 5-35 DEG C, and preferred anchoring construction temperature range is 15-30 DEG C.
Step 2) complete in second skylight point.
Step 3) in: gap slip casting comprises the following steps: first clear up filling bed gap ambient dust, impurity, and grouting port is set on gap, then rapid curing joint seal material is adopted to close to gap region, after joint seal material cured, two component self-mixing grouting machine is adopted in gap, to inject macromolecule injecting paste material by grouting port, after gap slip casting completes, removal grouting port and joint seal material can complete reparation, described macromolecule injecting paste material is rapid curing dual-component polyurethane injecting paste material or epoxy resin injecting paste material or acrylic resin injecting paste material, preferred injecting paste material is rapid curing dual-component polyurethane injecting paste material.
The present invention arranges grouting port and is buried underground Grouting Pipe mode completed by bonding grouting nozzle or boring, and grouting port spacing is 65 ~ 130cm, when adopting boring to bury Grouting Pipe underground, and drilling depth 5 ~ 15cm.
Rapid curing joint seal material of the present invention is the one in acrylic compounds clay, epoxy resin daub, polyurethane clay, and its hardening time is less than 20min, and viscosity is greater than 20000mPas.
Dual-component polyurethane injecting paste material two component ratio of the present invention is 1: 1, and injecting paste material is less than 30min hardening time, and viscosity is less than 100mPas, and 2h hot strength is greater than 15MPa, and elongation at break is greater than 5%, and adhesion strength is greater than 3MPa.
The two component self-mixing grouting machine of the present invention adopts to be had segmentation-displacement-again converge the stepped of effect or helical form static mixer and realizes the efficient automatic of two-component materials and mix.
In slip casting process of the present invention, pressure higher than 0.1MPa, must not stop slip casting when having slurries spilling or pressure higher than during 0.1MPa.
Step 3) complete in the 3rd skylight point.
Above-mentioned is can understand and apply the invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to embodiment here, those skilled in the art are according to announcement of the present invention, and the improvement made for the present invention and amendment all should within protection scope of the present invention.
Claims (8)
1. a platy ballastless track structure filling bed gap restoring and fastening method, it is characterized in that, it comprises the following steps:
1), at filling bed gap area track plate face vertical drilling;
2), anchoring is carried out at track plates face bore position;
3), slip casting reparation is carried out for filling bed gap region.
2. a kind of platy ballastless track structure filling bed gap restoring and fastening method according to claim 1, is characterized in that: described anchorage style can take the one in pin anchoring, reinforcing steel implant anchoring, chemical anchoring.
3. a kind of platy ballastless track structure filling bed gap restoring and fastening method according to claim 1, is characterized in that: the temperature range of described anchoring construction is 5-35 DEG C.
4. a kind of platy ballastless track structure filling bed gap restoring and fastening method according to claim 1, it is characterized in that: described slip casting renovation technique comprises gap cleaning, grouting port is set, gap is closed, gap slip casting, complete the operations such as reparation, be specially: first clear up filling bed gap ambient dust, impurity, and grouting port is set on gap, then rapid curing joint seal material is adopted to close to gap region, after joint seal material cured, two component self-mixing grouting machine is adopted in gap, to inject macromolecule injecting paste material by grouting port, after gap slip casting completes, removal grouting port and joint seal material can complete reparation, described macromolecule injecting paste material is rapid curing dual-component polyurethane injecting paste material or epoxy resin injecting paste material or acrylic resin injecting paste material.
5. a kind of platy ballastless track structure filling bed gap restoring and fastening method according to claim 1 and 4, it is characterized in that: the described grouting port that arranges is buried underground Grouting Pipe mode completed by bonding grouting nozzle or boring, grouting port spacing is 65 ~ 130cm, when adopting boring to bury Grouting Pipe underground, drilling depth 5 ~ 15cm.
6. a kind of platy ballastless track structure filling bed gap restoring and fastening method according to claim 1 and 4, it is characterized in that: described rapid curing joint seal material is the one in acrylic compounds clay, epoxy resin daub, polyurethane clay, its hardening time is less than 20min, and viscosity is greater than 20000mPas.
7. a kind of platy ballastless track structure filling bed gap restoring and fastening method according to claim 1 and 4, it is characterized in that: described dual-component polyurethane injecting paste material two component ratio is 1: 1, injecting paste material is less than 30min hardening time, viscosity is less than 100mPas, 2h hot strength is greater than 15MPa, elongation at break is greater than 5%, and adhesion strength is greater than 3MPa.
8. a kind of platy ballastless track structure filling bed gap restoring and fastening method according to claim 1 and 4, is characterized in that: the described pair of component self-mixing grouting machine adopts to be had segmentation-displacement-again converge the stepped of effect or helical form static mixer and realize the efficient automatic of two-component materials and mix.
Priority Applications (1)
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| CN201410654789.2A CN104404844A (en) | 2014-11-18 | 2014-11-18 | Method for repairing and reinforcing open joint of filling layer of slab ballastless track |
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| CN201410654789.2A CN104404844A (en) | 2014-11-18 | 2014-11-18 | Method for repairing and reinforcing open joint of filling layer of slab ballastless track |
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| CN201410654789.2A Pending CN104404844A (en) | 2014-11-18 | 2014-11-18 | Method for repairing and reinforcing open joint of filling layer of slab ballastless track |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220582A (en) * | 2015-08-25 | 2016-01-06 | 中铁三局集团有限公司 | Based on Disease Treatment method at the bottom of the solid concrete roabed of combined support and slip casting template and tunnel |
| CN105484110A (en) * | 2015-11-24 | 2016-04-13 | 北京瑞威铁科高铁工程有限公司 | Renovating method for gaps and mud spillover between CRTSI template type ballastless track base plate and surface layer of roadbed of high-speed railway |
| CN105568795A (en) * | 2015-12-18 | 2016-05-11 | 成都市新筑路桥机械股份有限公司 | Method for repairing polymer composite for embedded track |
| CN106012697A (en) * | 2016-05-30 | 2016-10-12 | 沪杭铁路客运专线股份有限公司 | Ballastless track roadbed high polymer injection lifting method |
| CN107476149A (en) * | 2017-08-02 | 2017-12-15 | 中铁第四勘察设计院集团有限公司 | A kind of non-excavation type ballastless track mortar leafing seams seam processing method |
| CN107489075A (en) * | 2016-06-13 | 2017-12-19 | 中国铁道科学研究院铁道建筑研究所 | A kind of plate-type ballastless track self-compacting concrete negative pressure pouring construction method |
| CN109736151A (en) * | 2019-01-31 | 2019-05-10 | 固远晨通科技发展有限公司 | Ballastless track sleeper separation and empty hoisting repair structure and method |
| CN109736152A (en) * | 2019-01-31 | 2019-05-10 | 固远晨通科技发展有限公司 | Ballastless track sleeper and track bed plate gap repairing structure and repairing method |
| CN109778618A (en) * | 2019-01-25 | 2019-05-21 | 北京瑞威世纪铁道工程有限公司 | Using the construction method at chemical pulp processing concrete bottom seat board expansion joint |
| CN110670418A (en) * | 2019-09-26 | 2020-01-10 | 中铁四院集团岩土工程有限责任公司 | Ballastless track roadbed surface layer slurry turning and finishing method |
| CN111287026A (en) * | 2020-02-26 | 2020-06-16 | 中铁第四勘察设计院集团有限公司 | Ballastless track passing through tunnel and implementation method thereof |
| CN115963008A (en) * | 2023-02-15 | 2023-04-14 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Full-life-cycle concrete dynamic performance test method for ballastless track laminated composite structure |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220582B (en) * | 2015-08-25 | 2018-01-30 | 中铁三局集团有限公司 | Solid concrete roabed and tunnel bottom Disease Treatment method based on combined support and slip casting template |
| CN105220582A (en) * | 2015-08-25 | 2016-01-06 | 中铁三局集团有限公司 | Based on Disease Treatment method at the bottom of the solid concrete roabed of combined support and slip casting template and tunnel |
| CN105484110A (en) * | 2015-11-24 | 2016-04-13 | 北京瑞威铁科高铁工程有限公司 | Renovating method for gaps and mud spillover between CRTSI template type ballastless track base plate and surface layer of roadbed of high-speed railway |
| CN105484110B (en) * | 2015-11-24 | 2020-06-19 | 北京瑞威铁科高铁工程有限公司 | Method for treating slurry leakage of gap between base plate of CRTSI type plate ballastless track of high-speed railway and surface layer of roadbed |
| CN105568795A (en) * | 2015-12-18 | 2016-05-11 | 成都市新筑路桥机械股份有限公司 | Method for repairing polymer composite for embedded track |
| CN105568795B (en) * | 2015-12-18 | 2017-05-10 | 成都市新筑路桥机械股份有限公司 | Method for repairing polymer composite for embedded track |
| CN106012697A (en) * | 2016-05-30 | 2016-10-12 | 沪杭铁路客运专线股份有限公司 | Ballastless track roadbed high polymer injection lifting method |
| CN107489075A (en) * | 2016-06-13 | 2017-12-19 | 中国铁道科学研究院铁道建筑研究所 | A kind of plate-type ballastless track self-compacting concrete negative pressure pouring construction method |
| CN107476149B (en) * | 2017-08-02 | 2019-06-04 | 中铁四院集团岩土工程有限责任公司 | A kind of non-excavation type ballastless track mortar leafing seams seam processing method |
| CN107476149A (en) * | 2017-08-02 | 2017-12-15 | 中铁第四勘察设计院集团有限公司 | A kind of non-excavation type ballastless track mortar leafing seams seam processing method |
| CN109778618A (en) * | 2019-01-25 | 2019-05-21 | 北京瑞威世纪铁道工程有限公司 | Using the construction method at chemical pulp processing concrete bottom seat board expansion joint |
| CN109736151A (en) * | 2019-01-31 | 2019-05-10 | 固远晨通科技发展有限公司 | Ballastless track sleeper separation and empty hoisting repair structure and method |
| CN109736152A (en) * | 2019-01-31 | 2019-05-10 | 固远晨通科技发展有限公司 | Ballastless track sleeper and track bed plate gap repairing structure and repairing method |
| CN109736152B (en) * | 2019-01-31 | 2024-02-13 | 固远晨通科技发展有限公司 | Gap repairing structure and repairing method between ballastless track sleeper and track slab |
| CN110670418A (en) * | 2019-09-26 | 2020-01-10 | 中铁四院集团岩土工程有限责任公司 | Ballastless track roadbed surface layer slurry turning and finishing method |
| CN111287026A (en) * | 2020-02-26 | 2020-06-16 | 中铁第四勘察设计院集团有限公司 | Ballastless track passing through tunnel and implementation method thereof |
| CN111287026B (en) * | 2020-02-26 | 2021-11-16 | 中铁第四勘察设计院集团有限公司 | Ballastless track passing through tunnel and implementation method thereof |
| CN115963008A (en) * | 2023-02-15 | 2023-04-14 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Full-life-cycle concrete dynamic performance test method for ballastless track laminated composite structure |
| CN115963008B (en) * | 2023-02-15 | 2024-05-28 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Full life cycle ballastless track laminated structure concrete dynamic performance test method |
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Application publication date: 20150311 |