CN101575833A - Method for restoring crosstie made of concrete - Google Patents
Method for restoring crosstie made of concrete Download PDFInfo
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- CN101575833A CN101575833A CNA2008100371824A CN200810037182A CN101575833A CN 101575833 A CN101575833 A CN 101575833A CN A2008100371824 A CNA2008100371824 A CN A2008100371824A CN 200810037182 A CN200810037182 A CN 200810037182A CN 101575833 A CN101575833 A CN 101575833A
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- concrete sleeper
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- restoring
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Abstract
The invention discloses a method for restoring a crosstie made of concrete, belonging to the technical filed of restoration and aiming to solve the technical problem of fast restoring the crosstie made of concrete so that the old and useless crosstie made of concrete can be repeatedly used. The method for restoring the crosstie made of concrete comprises the following steps: (1) perforating damaged screw parts of the crosstie made of concrete by a diamond drill and then taking concrete drill cores containing damaged screws out; (2) embedding (new) screws and filling concrete materials, i.e. rapid hardening and quick drying sulphate aluminum cement and adding water glass or adding water glass and water into perforated holes so that the concrete materials can be rapidly hardened; and (3) checking the fastness degree of the embedded screws, determining that the concrete materials are solidified and then adding screw caps to tighten the screws so that the restoration is completed. With the invention, the crosstie made of concrete can be fast restored so that the old and useless crosstie made of concrete can be repeatedly used.
Description
Technical field
The present invention relates to recovery technique, particularly relate to the method that a kind of reparation is used for the concrete sleeper of tunnel, mine and railway.
Background technology
According to the preliminary statistics, there are 210,000 big and small mines in the whole nation, and each mine is on average by tunnel, 5 kilometers mines, and will there be the tunnel, mine of nearly gigameter in the whole nation.These tunnel, mine long period of soaking are very easily suffered to damage and must often be repaired in underground water.This be railroad track ten Shes doubly, the repair amount is extraordinary.
In addition, Chinese china railway total length will reach 7.5 ten thousand kilometers to the end of the year 2008, plan 2010, and railway increases by 20,000 kilometers again, and length overall reaches 9.5 ten thousand kilometers.Be only second to the U.S., Russia occupies the third place in the world.But 2006, China railways has been finished the freight volume of world's railway 1/4 with the revenue kilometres that account for world's railway 6%, has created four the first in the world: volume of passenger transportation the first in the world, delivery of goods amount the first in the world, conventional of freight mileage the first in the world, railway transportation density the first in the world.
Along with the high speed of national economy, sustainable development, railway transportation are still being undertaken other at home and are being transported irreplaceable effect.Also along with the high speed of national economy, the mileage of sustainable development railway also can continue to increase.
Creating on the railway transportation much the first, no doubt is meddlesome.Also bring a lot of unfavorable factors for simultaneously the maintenance of railway.As everyone knows, the sleeper of railway originally all is with wooden, changes concrete system afterwards into, is a much progress, has saved timber so greatly.And not resembling wooden crossties, can just can not reinforce concrete sleeper with iron nail, but reinforce with screw.In long-term vibrations friction, screw will become flexible, and maintenance is then often fastening at ordinary times.Then screw damage of longer time before not having the present invention, is cancelled whole concrete sleeper only, has wasted material, also pollutes.
Follow according to data, per two meters tracks just have five sleepers, and every sleeper has four screws, so every meter on average has ten on screw.Screw on railway will be up to 750,000 at present in the whole nation.This maintenance capacity is big has just well imagined.
Summary of the invention
At the defective that exists in the above-mentioned prior art, technical problem to be solved by this invention provides the quick repairing concrete sleeper of a kind of energy, makes the waste and old reusable method of concrete sleeper energy.
In order to solve the problems of the technologies described above, the method of a kind of repairing concrete sleeper provided by the present invention, it is characterized in that the step of method: 1) the part punching of the screw that concrete sleeper has been damaged with diamond bit, take out the concrete core that contains the damaged screws nail; 2) then (new) screw is implanted, and with the fast dried sulphate aluminium cement of rapid hardening add water glass or add water glass and the concrete material filling of water wherein, make its rapid solidification; 3) the firm degree of the inspection screw that buries is confirmed to solidify, and it is fastening to add nut, finishes reparation.
Further, described diamond bit is the special diamond drill bit that is used for repairing concrete sleeper that Shanghai GEMS company produces.
Further, described fast hard (fast doing) sulphate aluminium cement is a label 525
#--1025
#Totally six specifications, quality meets the fast dried sulphate aluminium cement of rapid hardening of Chinese building material JC714-96 standard.
Utilize the method for repairing concrete sleeper provided by the invention, because adopting the diamond bit punching removes, the mode repairing concrete sleeper of the fast dried sulphate aluminium cement filling setscrew of rapid hardening, and this fast hard (fast doing) cement can be cured in the extremely short time, and the longest needs 3h, and the shortest needs 25min, even can also be as required≤25min, so can just be usually used in the reparation of the useless concrete sleeper that decreases, and its cost has only and changes 1/10 of whole concrete sleeper, save very much; Simultaneously waste and old concrete sleeper could also be reused, and does not need whole be discarded in by the railway, has avoided the pollution of waste and old concrete sleeper!
The specific embodiment
Below embodiments of the invention are described in further detail, but present embodiment is not limited to the present invention, every employing similarity method of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
The method of a kind of repairing concrete sleeper that the embodiment of the invention provided, be characterized in, the part of the concrete sleeper screw that the special diamond drill bit will have been damaged earlier, with portable rig with drill bit in the part punching that damages, take out the concrete core that contains the damaged screws nail.Then new screw is implanted, and with the fast dried sulphate aluminium cement of rapid hardening or add water glass or add water glass and the concrete material filling of water wherein, allow its rapid solidification.Because this cement can be cured in the extremely short time, the longest needs 3h, and the shortest needs 25min, even can also be as required≤25min.So can just be usually used in the reparation of the useless concrete sleeper that decreases, and its cost has only and changes 1/10 of whole concrete sleeper, save very much.Simultaneously waste and old concrete sleeper could also be reused, and does not need whole be discarded in by the railway, so that pollute!
Because this kind cement also has freeze proof advantage,, more can be suitable for the use under the cold conditions in western part, the north and winter so not only be fit to the use of general normal weather! Particularly western, geology Disaster evil is very frequent at present, more apparent its importance of this operation!
The diamond bit that the present invention selects for use is that Shanghai GEMS company produces, and the trade mark is: a kind of among the GEMS-Z.Its diameter of phi 25-40mm; The general 120-150mm of length.Bit wall thickness is generally 3-8mm.As GEMS-Z Φ 35mm; Long 100mm; Bit wall thickness is 5mm; Code name can be written as GEMS-Z Φ 35mm.
Also to be equipped with special portable rig with it.
Method of the present invention adopts the fast dried sulphate aluminium cement series of products of rapid hardening, label 525
#--1025
#Totally six specifications, quality meets Chinese building material JC714-96 standard.This product has high strength, low alkalinity, early epistasis, fast, the acid and alkali-resistance of condensing, antiseep, corrosion resistant, microdilatancy, the low contraction.In order to accelerate setting rate, special-purpose No. 3 water glass of available engineering circle, as required fast time of doing adds water in proportion or does not add the water ready-mixed concrete with this product during use.Can accelerate setting time greatly like this, this brings desirable effect to the operation meeting that is in operation.
The concrete technical requirements index of the fast dried sulphate aluminium cement of rapid hardening in the inventive method:
1. technical qualities index
A. specific area: be not less than 350 squares/kg
B. time of setting: initial set is no earlier than 25min, and final set is earlier than 3h.Can provide the rapid hardening fast dried sulphate aluminium cement of initial set by customer requirements less than 25min.
2. predominant use
A. preparation early by force, hard, freeze proof, resisting erosion of sulfate concrete soon;
B. prepare GRC concrete and goods;
C. winter construction, repairing rush construction engineering, particularly the railway engineering repairing is used.
One of specific embodiments of the inventive method:
1) problematic concrete sleeper is checked out in track inspection, and noting marker;
2) adopting GEMS-Z type Φ 30mm, long 120mm, bit wall thickness is 5mm, and its code name is the railway concrete sleeper special diamond drill bit of GEMS-Z Φ 30.Accomplish fluently diameter at problematic concrete sleeper position and be and get the core hole about Φ 31mm, and its concrete core and the screw that damaged are taken out together;
3) imbed prior ready prepd new screw and put into the hole;
4) by the required setting time that designs in advance, allotment rapid hardening fast dried sulphate aluminium cement, this adds water glass is 30% or water 70%.Quick hardening cement is adjusted to the higher pastel of viscosity.The general setting time of present case is about 1h;
5) the concrete material of pastel is filled in and screw is housed puts into the hole, allows its rapid solidification;
6) the firm degree of the inspection screw that buries is confirmed to solidify, and it is fastening to add nut, promptly repairs.
Two of the specific embodiments of the inventive method:
1) problematic concrete sleeper is checked out in track inspection, and noting marker;
2) adopting GEMS-Z type Φ 35mm, long 120mm, bit wall thickness is 8mm, and its code name is the concrete sleeper special diamond drill bit of GEMS-Z Φ 35.Accomplish fluently diameter at problematic concrete sleeper position and be and get the core hole about Φ 36mm, and its concrete core and the screw that damaged are taken out together;
3) imbed prior ready prepd screw, put into the hole;
4) by the required setting time that designs in advance, allotment rapid hardening fast dried sulphate aluminium cement, this adds water glass is 45% or water 55%.Quick hardening cement is adjusted to the higher pastel of viscosity.The general setting time of present case is about 0.5-0.75h;
5) the concrete material of pastel is filled in and screw is housed puts into the hole, allows its rapid solidification;
6) the firm degree of the inspection screw that buries is confirmed to solidify, and it is fastening to add nut, promptly repairs.
Claims (3)
1, a kind of method of repairing concrete sleeper is characterized in that, the step of method:
1) the concrete core that contains the damaged screws nail is taken out in the part punching of the screw that concrete sleeper has been damaged with diamond bit;
2) then new screw is implanted, and with the fast dried sulphate aluminium cement of rapid hardening add water glass or add water glass and the concrete material filling of water wherein, make its rapid solidification;
3) the firm degree of the inspection screw that buries is confirmed to solidify, and it is fastening to add nut, finishes reparation.
2, the method for repairing concrete sleeper according to claim 1 is characterized in that, described diamond bit is the special diamond drill bit that is used for repairing concrete sleeper that Shanghai GEMS company produces.
3, the method for repairing concrete sleeper according to claim 1 is characterized in that, the fast dried sulphate aluminium cement of described rapid hardening is a label 525
#--1025
#Totally six specifications, quality meets the fast dried sulphate aluminium cement of rapid hardening of Chinese building material JC714-96 standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810037182A CN101575833B (en) | 2008-05-09 | 2008-05-09 | Method for restoring crosstie made of concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810037182A CN101575833B (en) | 2008-05-09 | 2008-05-09 | Method for restoring crosstie made of concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101575833A true CN101575833A (en) | 2009-11-11 |
| CN101575833B CN101575833B (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810037182A Expired - Fee Related CN101575833B (en) | 2008-05-09 | 2008-05-09 | Method for restoring crosstie made of concrete |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306171A (en) * | 2013-06-26 | 2013-09-18 | 西南交通大学 | Groove cutting machine, groove cutting machine for repairing sleeper, and railroad sleeper repairing method |
| CN103866662A (en) * | 2012-12-14 | 2014-06-18 | 昆明中铁大型养路机械集团有限公司 | Small milling device for high-speed ballastless track |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10330878B3 (en) * | 2003-07-09 | 2005-02-03 | Pfleiderer Infrastrukturtechnik Gmbh & Co. Kg | Method for the subsequent insertion of push-through connections in concrete sleepers |
| CN2668682Y (en) * | 2003-11-01 | 2005-01-05 | 徐怀志 | Plastic casing-tube drilling device for speed-up railroad switch rail-pillow plate and preburying device |
-
2008
- 2008-05-09 CN CN200810037182A patent/CN101575833B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866662A (en) * | 2012-12-14 | 2014-06-18 | 昆明中铁大型养路机械集团有限公司 | Small milling device for high-speed ballastless track |
| CN103866662B (en) * | 2012-12-14 | 2015-09-16 | 昆明中铁大型养路机械集团有限公司 | The small-sized milling device of a kind of high speed non-fragment orbit |
| CN103306171A (en) * | 2013-06-26 | 2013-09-18 | 西南交通大学 | Groove cutting machine, groove cutting machine for repairing sleeper, and railroad sleeper repairing method |
| CN103306171B (en) * | 2013-06-26 | 2015-08-26 | 西南交通大学 | Groove cutting machine, sleeper reparation groove cutting machine and railroad sleeper restorative procedure |
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| Publication number | Publication date |
|---|---|
| CN101575833B (en) | 2012-10-17 |
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