CN205188725U - Tram road bed raft foundation - Google Patents
Tram road bed raft foundation Download PDFInfo
- Publication number
- CN205188725U CN205188725U CN201520981060.6U CN201520981060U CN205188725U CN 205188725 U CN205188725 U CN 205188725U CN 201520981060 U CN201520981060 U CN 201520981060U CN 205188725 U CN205188725 U CN 205188725U
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- CN
- China
- Prior art keywords
- raft
- tram
- slip casting
- plate body
- foundation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a tram road bed raft foundation, including the raft edition of books body and pillow board, raft edition of books body top surface is equipped with a plurality of slip casting through -hole, and the link that is located raft edition of books body both sides all is equipped with the arch, and one of them arch is located the bottom, and another is located the top, the bottom arch and the protruding cooperation in top of two adjacent raft edition of books bodies, and through junction of the edges of two sheets of paper overlap joint, the lap -joint bottom is equipped with the pillow board. The utility model discloses a setting of junction of the edges of two sheets of paper overlap joint and pillow board can strengthen and subside the degree of consistency, eliminates differential settlement. Can carry out slip casting when exceeding standard and handle subsiding through setting up slip casting through -hole 3, make in foundation settlement gets back to the prescribed limit, need not demolish track structure and carry out the foundation treatment, both saved cost of maintenance, need not cut off traffic again.
Description
Technical field
The utility model belongs to field of track traffic, is specifically related to a kind of tram roadbed raft foundation.
Background technology
Modern tram circuit is generally ground and lays, and roadbed ratio is more than 90%.For the consideration of the aspects such as environmental protection, view, routine servicing a little repair.In current city track traffic engineering, main track all adopts solid concrete roabed structure, and the deformation requirements of body ballast bed structure to roadbed is high, and general subgrade settlement after construction should not be greater than 50mm, and differential settlement is not more than 15mm/20m; The relative settlement of bridge road, culvert intersection should not be greater than 10mm.The rigid pile foundations such as the coastal area such as Jiangsu, Shanghai mostly is soft foundation, the good pile tube of many employing processing soft soil effects, this rigid pile foundation engineering cost is relatively high, limits underground space development, and limits traversing pipe line.
Summary of the invention
The purpose of this utility model is to provide a kind of tram roadbed raft foundation, can reduce subsidiary stress, reduces settlement after construction, can strengthen Equalsettlement degree again, eliminating differences sedimentation.
The technical solution realizing the utility model object is: a kind of tram roadbed raft foundation, comprise raft plate body and pillow plate, raft plate body end face is provided with several slip casting through holes, the link being positioned at raft plate body both sides is equipped with projection, one of them projection is positioned at bottom, and another is positioned at top, bottom projection and the top male cooperation of two pieces of adjacent raft plate bodies, overlapped by the junction of the edges of two sheets of paper, bottom lap-joint, be provided with pillow plate.
According to single-line railway, described slip casting through hole is arranged along the central axis of raft plate body, and spacing distance is 2.0m ~ 3m; Raft plate body width is 2.3m ~ 3m, and thickness is 0.25m ~ 0.5m, and length is 20m ~ 30m.
According to two-wire track, described slip casting through hole is arranged respectively along the center line of two tracks, and spacing distance is 2.0m ~ 3m; Raft plate body width is 5.7m ~ 6.6m, and thickness is 0.25m ~ 0.5m, and length is 20m ~ 30m.
Described slip casting through-hole aperture is 0.03 ~ 0.05m.
Described projection is wide is 0.50m ~ 0.6m, and height is 0.20m ~ 0.3m.
Described pillow plate is wide is 1m ~ 1.2m, and height is 0.2m ~ 0.4m.
Compared with prior art, its remarkable advantage is the utility model: (1) is overlapped by the junction of the edges of two sheets of paper and rests the head on the setting of plate, can strengthen Equalsettlement degree, eliminating differences sedimentation.
(2) injecting treatment can be carried out when sedimentation exceeds standard by arranging slip casting through hole, making foundation settlement get back in prescribed limit, not need to remove track structure and carry out based process, both saved maintenance cost, and do not need again to cut off traffic.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of tram roadbed of the utility model raft foundation.
Fig. 2 is the lateral view of a kind of tram roadbed of the utility model raft foundation.
Fig. 3 is the top view of single-line railway tram roadbed raft foundation in enforcement 1 of the present utility model.
Fig. 4 is the top view of two-wire track tram roadbed raft foundation in enforcement 1 of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Existing tram adopts solid concrete roabed, and track 90% is for laying on ground, and in soft foundation region, after basement process, post-construction settlement of subgrade can not be less than the requirement of 50mm.
Composition graphs 1 and Fig. 2, a kind of tram roadbed raft foundation of the present utility model, comprise raft plate body 1 and pillow plate 2, raft plate body 1 end face is provided with several slip casting through holes 3, and the link being positioned at raft plate body 1 both sides is equipped with protruding 4, and one of them projection 4 is positioned at bottom, another is positioned at top, bottom projection and the top male cooperation of two pieces of adjacent raft plate bodies 1, overlapped by the junction of the edges of two sheets of paper, is provided with pillow plate 2 bottom lap-joint.
According to single-line railway, described slip casting through hole 3 is arranged along the central axis of raft plate body 1, and spacing distance is 2.0m ~ 3m; Raft plate body 1 width is 2.3m ~ 3m, and thickness is 0.25m ~ 0.5m, and length is 20m ~ 30m.
According to two-wire track, described slip casting through hole 3 is arranged along the center line of two tracks, and spacing distance is 2.0m ~ 3m; Raft plate body 1 width is 5.7m ~ 6.6m, and thickness is 0.25m ~ 0.5m, and length is 20m ~ 30m.
Described slip casting through hole 3 aperture is 0.03 ~ 0.05m.
Described protruding 4 wide 0.50m ~ 0.6m, high 0.20m ~ 0.3m.
Wide 1m ~ the 1.2m of described pillow plate 2, high 0.2m ~ 0.4m.
Raft plate body 1 and the pillow plate 2 of described tram roadbed raft foundation are all arranged on road structure layer 5, and solid concrete roabed 6 is arranged on raft plate body 1 top, and track 7 is arranged on solid concrete roabed 6 top.
That rests the head on plate 2 acts on elimination differential settlement, the raft plate body 1 that connection two pieces is adjacent simultaneously.
When uneven settlement of foundation exceedes regulation, by slip casting through hole 3 to foundation grouting, differential settlement can be balanced.
Embodiment 1
For single-line railway
Composition graphs 1, Fig. 2 and Fig. 3, the wide 2.5m of raft plate body 1, high 0.40m, length 25.06m, arrange the projection 4 of wide 0.50m, high 0.20m in its end, the wide 1m of pillow plate 2, high 0.3m.
Raft plate body 1 adopts beam on elastic foundation principle, in order to come to nothing in operation process or Excessive Settlement time adopt remedial measures and do not damage force structure.Slip casting through hole 3 diameter is 0.04m, and spacing is 2.0m, and in slip casting through hole 3, arrange pvc pipe, pipe end does pipe cap; Pvc pipe answers length in reserve should to rail top face.
11 slip casting through holes 3 are provided with at raft plate body 1 end face, the link being positioned at raft plate body 1 both sides is equipped with protruding 4, one of them projection 4 is positioned at bottom, another is positioned at top, bottom projection and the top male cooperation of two pieces of adjacent raft plate bodies 1, overlapped by the junction of the edges of two sheets of paper, bottom lap-joint, be provided with pillow plate 2.Raft plate body 1 and the pillow plate 2 of described tram roadbed raft foundation are all arranged on road structure layer 5, and solid concrete roabed 6 is arranged on raft plate body 1 top, and track 7 is arranged on solid concrete roabed 6 top.
Embodiment 2
For two-wire track
Composition graphs 1, Fig. 2 and Fig. 4, the wide 6m of raft plate body 1, high 0.50m, length 28m, arrange the projection 4 of wide 0.60m, high 0.30m in its end, the wide 1.2m of pillow plate 2, high 0.4m.
Raft plate body 1 adopts beam on elastic foundation principle, in order to come to nothing in operation process or Excessive Settlement time adopt remedial measures and do not damage force structure.Slip casting through hole 3 diameter is 0.05m, and spacing is 3.0m, and in slip casting through hole 3, arrange pvc pipe, pipe end does pipe cap; Pvc pipe answers length in reserve should to rail top face.
20 slip casting through holes 3 are provided with at raft plate body 1 end face, the link being positioned at raft plate body 1 both sides is equipped with protruding 4, one of them projection 4 is positioned at bottom, another is positioned at top, bottom projection and the top male cooperation of two pieces of adjacent raft plate bodies 1, overlapped by the junction of the edges of two sheets of paper, bottom lap-joint, be provided with pillow plate 2.Raft plate body 1 and the pillow plate 2 of described tram roadbed raft foundation are all arranged on road structure layer 5, and solid concrete roabed 6 is arranged on raft plate body 1 top, and track 7 is arranged on solid concrete roabed 6 top.
After the utility model process, cost reduces 15%, and ensure that underground space development and traversing pipe line.The utility model is overlapped by the junction of the edges of two sheets of paper and rests the head on the setting of plate, can strengthen Equalsettlement degree, eliminating differences sedimentation.Injecting treatment can be carried out when sedimentation exceeds standard by arranging slip casting through hole 3, making foundation settlement get back in prescribed limit, not need to remove track structure and carry out based process, both saved maintenance cost, and do not need again to cut off traffic.
Claims (6)
1. a tram roadbed raft foundation, it is characterized in that: comprise raft plate body (1) and pillow plate (2), raft plate body (1) end face is provided with several slip casting through holes (3), the link being positioned at raft plate body (1) both sides is equipped with projection (4), one of them projection (4) is positioned at bottom, and another is positioned at top, bottom projection and the top male cooperation of two pieces of adjacent raft plate bodies (1), overlapped by the junction of the edges of two sheets of paper, bottom lap-joint, be provided with pillow plate (2).
2. tram roadbed raft foundation according to claim 1, is characterized in that: according to single-line railway, and described slip casting through hole (3) is arranged along the central axis of raft plate body (1), and spacing distance is 2.0m ~ 3m; Raft plate body (1) width is 2.3m ~ 3m, and thickness is 0.25m ~ 0.5m, and length is 20m ~ 30m.
3. tram roadbed raft foundation according to claim 1, is characterized in that: according to two-wire track, and described slip casting through hole (3) is arranged respectively along the center line of two tracks, and spacing distance is 2.0m ~ 3m; Raft plate body (1) width is 5.7m ~ 6.6m, and thickness is 0.25m ~ 0.5m, and length is 20m ~ 30m.
4. according to the tram roadbed raft foundation in claim 1-3 described in any one, it is characterized in that: described slip casting through hole (3) aperture is 0.03 ~ 0.05m.
5. tram roadbed raft foundation according to claim 1, is characterized in that: described projection (4) is wide is 0.50m ~ 0.6m, and height is 0.20m ~ 0.3m.
6. tram roadbed raft foundation according to claim 1, is characterized in that: described pillow plate (2) is wide is 1m ~ 1.2m, and height is 0.2m ~ 0.4m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520981060.6U CN205188725U (en) | 2015-12-01 | 2015-12-01 | Tram road bed raft foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520981060.6U CN205188725U (en) | 2015-12-01 | 2015-12-01 | Tram road bed raft foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205188725U true CN205188725U (en) | 2016-04-27 |
Family
ID=55781728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520981060.6U Expired - Fee Related CN205188725U (en) | 2015-12-01 | 2015-12-01 | Tram road bed raft foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205188725U (en) |
-
2015
- 2015-12-01 CN CN201520981060.6U patent/CN205188725U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20211201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |