CN201053091Y - Reinforcing bar cement concrete railway roadbed - Google Patents
Reinforcing bar cement concrete railway roadbed Download PDFInfo
- Publication number
- CN201053091Y CN201053091Y CNU2007201512869U CN200720151286U CN201053091Y CN 201053091 Y CN201053091 Y CN 201053091Y CN U2007201512869 U CNU2007201512869 U CN U2007201512869U CN 200720151286 U CN200720151286 U CN 200720151286U CN 201053091 Y CN201053091 Y CN 201053091Y
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- cement
- roadbed
- cement concrete
- utility
- subgrade
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Abstract
The reinforced cement concrete subgrade engineering of the utility model belongs to the modern high-tech road construction field and is necessary for the modern subgrade foundation engineering. The utility model can completely replace the prior primitive underdeveloped macadam subgrade which can be entirely reconstructed and replaced. The utility model which is firm and flat, durable and pressure resistant can be done once and forever. With a specially made cement sleeper arranged at the joint of two rails and fixing long bolts on both ends of the cement sleeper, the utility model enables the railway track subgrade engineering in our country to enter into a new era of modern great strategic reconstruction, thereby from now on, not only saving maintenance personnel and a large amount of capital spent by the railway department, but also enabling the mechanical stability, safety and comfort of trains in China to reach a highest and optimal status, and realizing the strategic transition of the modern subgrade.
Description
Technical field
The utility model relates to a kind of railway roadbed, particularly a kind of reinforced cement concrete railway roadbed.
Reinforced cement concrete railway track Road Base engineering of the present utility model is the construction field that belongs to all roads of modernization, it should meet modern high technology roadbed requirements on Construction, it should be firm smooth, durable in use, bear a heavy burden withstand voltage, do not have burn into to put things right once and for all, be the essential of modern all capital workss.
Background technology
Since human invention railway train, the roadbed of railroad track is with the rubble place mat below always, in a row superjacent of rail.Along with rolling for a long time of heavy train wheel, the rubble roadbed is still very weak, the maintain road trackman must be often by hand or machinery add stone and mix stone, to compress the roadbed below the soft road, guarantee that roadbed is harder firmly smooth, finish the safety of the always on the move train that travels effectively, will spend a large amount of funds, human and material resources every year for this reason, but generally speaking the rubble roadbed is also very unstable, and out-of-date already.Because roadbed mainly is that rubble is mixed between earth, still weak, during train driving, the rail road is bob not only, noise is very big, and also double swerve is very big in the car, walks as a drunk man, very uncomfortable, unusual troublesome, and exist very big danger.
In addition, the hidden danger of a maximum is exactly the unsettled butt joint at two rail joint places, under do not have land, depending two shims alone links to each other, one meets on the pressure wheel, tens tons immense pressure is just depressed sunken (earth ground can not bear a heavy burden) negative original position that also is in to a rail on one side, the dislocation (a low height) that has so just formed between two row's rails is opposite afterwards, such situation has just caused noise and the utmost point destabilizing factor in the train operation, if two limit shims twist off because of heavy burden, the dislocation of two rail joints is not docked, and will cause the top of permutation train to tumble again, causes national wealth and people life property loss to lead to great railway accident.
Therefore, this two rail joints place must implement and establish reality, definitely or else allows unsettled butt joint, all puts at space a piece of paper and does not stop and can down waft, in addition be tens tons of gravity that only are pressed between this rail heart.
Summary of the invention
The purpose of this utility model provides a kind of reinforced cement concrete railway roadbed, it firm smooth, durable in use, bear a heavy burden withstand voltagely, do not have burn into to put things right once and for all.
The utility model is achieved like this, comprise reinforced cement concrete roadbed, cement pillow and rail, the cement of the row of being laid to pillow on the reinforced cement concrete roadbed, the fixedly connected rail of cement pillow positioning bolt, the gap is not stayed at two rail joint places, with special cement pillow, there are two groups of fastening bolts at cement pillow two down at the rail joint place.The stay bolt permanent position of location is used at 3-5 root cement pillow two.
The utility model has the advantages that: it firm smooth, durable in use, bear a heavy burden withstand voltagely, not having burn into is once and for all the essential of modern all capital workss.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is two rail connection diagrams of the present utility model.
In the drawings: 1, reinforced cement concrete roadbed 2, cement pillow 3, fastening bolt 4, rail 5, location stay bolt
The specific embodiment
As shown in Figure 1 and Figure 2, the utility model is achieved like this, it comprises reinforced cement concrete roadbed 1, cement pillow 2 and rail 4, the cement of the row of being laid to pillow 2 on reinforced cement concrete roadbed 1, cement pillow 2 is by fastening bolt 3 fixedly connected rail 4, the gap is not stayed at two rail joint places, and with special cement pillow, cement is rested the head on 2 two two groups of fastening bolts 3 down at the rail joint place.3-5 root cement pillow two is with locating stay bolt 5 permanent positions.
The utility model comprises following three steps:
1, with cement casting reinforced concrete roadbed.The roadbed sectional area is last wide 2600mm, following wide 3000mm, height is seen accompanying drawing 1 for the isosceles trapezoid of 290mm, the application of the inside screw-thread steel should meet national capital construction standard, can be strong a little, be the saving raw material, could the filial piety worry stir use together with the alternative moth cobble adding of the granite stones on existing roadbed cement, sand, the mechanical strength possibility is similar.
2, the gap is not stayed at two rail joint places, and being adjacent to continuous (not considering the problem of expanding with heat and contract with cold) accompanying drawing 2, two rail joint places should change all of a sudden, and definitely can not unsettledly dock.The special bolt cement pillow of widening should be manufactured, reality must be implemented and establish below it.The special cement pillow of widening is of a size of the long 2500mm that is, wide is 160mm, and height is 150mm.Above two the two groups of bolts in fastening two limits of two groups of fastening bolts (pressing a rail head for a group) are respectively arranged, clip two limit shims.At last, dead with electric welding machine again the welding of two rail joint rail gaps, again with stay bolt permanent position, location.
3, for preventing that rail in a row is toward the displacement dislocation of two limits, two on every 3-5 root cement pillow is respectively used the Electric portable drill jewel hole, bore down about 50mm toward roadbed again, use the stay bolt of diameter 20 * 230 (mm) to throw urgent (bigger 40 of the comparable drill bit of stay bolt diameter) into then and play positioning and fixing effect (can increase when meeting the roadbed bend and make positioning bolt), the cement pillow at every rail joint place must fix the position with the location stay bolt.
4, except that do the new rail link by this scheme comprehensively, existing rubble roadbed can slowly arrange construction team to transform, the place mat work of special cement pillow between two rails on the national railway is carried out in suggestion comprehensively in addition, can make special pillow in batch earlier, mail to various places Railway Bureau, can instruct each road bureau various places shed repair road road maintenance troop to finish this work in the location of oneself separately.This is easy to accomplish to them.Like this, just eliminated the operating main destabilizing factor of train rail one step ahead.Make railway train temporarily be in more stable, comfortable, safe condition, the straight grade finished till the transformation of modernized reinforced cement concrete subgrade construction comprehensively.
Claims (4)
1. reinforced cement concrete railway roadbed, it comprises reinforced cement concrete roadbed, cement pillow and rail, the cement pillow that it is characterized in that the row of being laid on the reinforced cement concrete roadbed, the cement pillow is gone up and is fastenedly connected rail by fastening bolt, tight with widening the real pad of bolt cement bolster below the two rails joint, the location stay bolt is fixed on the cement pillow on the cement roadbed.
2. reinforced cement concrete railway roadbed according to claim 1, the cross section that it is characterized in that the reinforced cement concrete roadbed are last wide 2600mm, following wide 3000mm, the isosceles trapezoid of high 290mm.
3. reinforced cement concrete railway roadbed according to claim 1 is characterized in that two rail joint places do not stay the gap, the long 2500mm of cement pillow under the rail joint place, and wide 160mm, high 150mm, cement is rested the head on two two groups of fastening bolts.
4. reinforced cement concrete railway roadbed according to claim 1 is characterized in that locating the diameter 20mm of stay bolt, long 230mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201512869U CN201053091Y (en) | 2007-06-12 | 2007-06-12 | Reinforcing bar cement concrete railway roadbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201512869U CN201053091Y (en) | 2007-06-12 | 2007-06-12 | Reinforcing bar cement concrete railway roadbed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053091Y true CN201053091Y (en) | 2008-04-30 |
Family
ID=39392756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201512869U Expired - Fee Related CN201053091Y (en) | 2007-06-12 | 2007-06-12 | Reinforcing bar cement concrete railway roadbed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053091Y (en) |
-
2007
- 2007-06-12 CN CNU2007201512869U patent/CN201053091Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20110612 |