CN202832564U - Large-section tunnel lining trolley - Google Patents
Large-section tunnel lining trolley Download PDFInfo
- Publication number
- CN202832564U CN202832564U CN2012204412539U CN201220441253U CN202832564U CN 202832564 U CN202832564 U CN 202832564U CN 2012204412539 U CN2012204412539 U CN 2012204412539U CN 201220441253 U CN201220441253 U CN 201220441253U CN 202832564 U CN202832564 U CN 202832564U
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- side wall
- concrete
- small side
- construction
- arch ring
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to tunnel construction machinery, in particular to a large-section tunnel lining trolley, and solves the problems that during existing tunnel lining construction, small side wall construction and arch ring concrete construction are respectively conducted, tunnel concrete structural integrity is influenced, and engineering cost is increased. The large-section tunnel lining trolley comprises a trolley body and an arch ring template, wherein the arch ring template is installed on the periphery of the trolley body through first adjustment lead screws. The arch ring template comprises a top mould and two side moulds which are connected with the top mould in a hinged mode, the lower ends of the two side moulds are respectively hinged with a small side wall curved mould, a second adjustment lead screw is installed between each small side wall curved mould and the trolley body, the tail end of each small side wall curved mould is provided with a grounding adjustment lead screw, and a guide chain is installed on each small side wall curved mould. A small side wall concrete process during construction is eliminated, connection steel bars used for connection of small side wall concrete and arch ring concrete are eliminated, labor costs and material costs are saved, the phenomenon of 'broken wall corners' is eliminated fundamentally, lining concrete quality is improved, and good economic benefits and social benefits are obtained.
Description
Technical field
The utility model relates to a kind of tunnel construction machinery, is specially a kind of large cross-section tunnel lining trolley.
Background technology
In recent years, along with the development of China railways economic construction, the continuous acceleration of urbanization process in continuous increase, a large amount of construction of tunnel occur, and scale is increasing to the demand of infrastructure, especially Transport Facility Construction.At present, in the large cross-section tunnel engineering, adopt lining template trolley for baffle to construct more, generally comprise chassis and template revenue and expenditure system and operating platform in the chassis arch template, trolley formwork, wherein the chassis arch template is by backform and two side templates are hinged forms.During lining construction, lay first little abutment wall part splash guard, apply again little side wall concrete, little abutment wall and arch ring are concrete to be connected in order to strengthen, and pre-buried Φ 22 connects a batch indented bars at little abutment wall top, re-lays at last the arch ring splash guard, after lining trolley is in place, build the arch ring concrete.This construction technology is because have vertical constuction joint at little abutment wall between the arch ring concrete, thereby affected the globality of tunnel concrete structure, thereby increase labour cost because apply this procedure of little abutment wall in addition, be connected batch reinforcing bar that connects that arranges with the arch ring concrete and increased cost of materials for strengthening little side wall concrete.In sum, traditional lining construction technique and lining trolley not only have larger harm to the globality of tunnel concrete structure, and have increased engineering cost.
Summary of the invention
The utility model little abutment wall construction and arch ring concrete construction when solving the existing tunnel lining construction are carried out respectively, are produced constuction joint, affect the tunnel concrete structural integrity and increase the problem of engineering cost, and a kind of large cross-section tunnel lining trolley is provided.
The utility model is to adopt following technical scheme to realize: the large cross-section tunnel lining trolley, comprise the chassis main body, be installed in the arch template of chassis main body periphery by the first adjusting screw, arch template comprises backform and two side forms hinged with backform, innovative point of the present utility model is to be hinged with respectively little abutment wall Qu Mo two side form lower ends; be provided with the second adjusting screw between little abutment wall Qu Mo and the chassis main body, and the bent mould end of little abutment wall is provided with over the ground adjusting screw.Adopt structure design of the present utility model, increase by a little abutment wall Qu Mo at former little abutment wall place, consist of full section punching block, and through Force Calculation, after increasing little abutment wall Qu Mo the lining trolley stressing conditions is affected also not quite, the intensity of lining trolley, rigidity and stability can satisfy the large section concrete construction requirement of railway of passengers' private line tunnel fully.
Described little abutment wall Qu Mo is provided with guide chain, when the lining trolley demoulding, with guide chain the bent die drawing of little abutment wall is risen first, and then takes off arch template.
Compared with prior art, when adopting described lining trolley of the present utility model to construct, cancel this procedure of little side wall concrete of constructing and reached as little side wall concrete is connected batch reinforcing bar that connects that arranges with the arch ring concrete, greatly saved labour cost and material cost expense; Cancelled little abutment wall because of lining cutting in addition, thereby fundamentally stopped the appearance of " mashed corner " phenomenon, the quality of lining concrete is greatly improved, and has obtained good economic benefit and social benefit.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing of A section among Fig. 1;
Among the figure: 1-chassis main body; 2-the first adjusting screw; The 3-backform; The 4-side form; The little abutment wall Qu Mo of 5-; 6-the second adjusting screw; 7-is adjusting screw over the ground; The 8-guide chain.
The specific embodiment
The large cross-section tunnel lining trolley, as shown in Figure 1, comprise chassis main body 1, be installed in the arch template of chassis main body periphery by the first adjusting screw 2, arch template comprises backform 3 and two side forms 4 hinged with backform, be hinged with respectively the bent mould 5 of little abutment wall two side form 4 lower ends, as shown in Figure 2, be provided with the second adjusting screw 6 between little abutment wall Qu Mo and the chassis main body; the bent mould end of little abutment wall is provided with over the ground adjusting screw 7, the bent mould 5 of little abutment wall is provided with guide chain 8.
During construction, add man-hour in the lining trolley template, process a little abutment wall Qu Mo by design size, little abutment wall Qu Mo and arch template are hinged, during the lining trolley demoulding, with guide chain the bent die drawing of little abutment wall are risen first, and then take off arch template.
Case history:
Project profile: tunnel, Jinzhai County and correlation engineering thereof be newly-built Hefei to the part of Wuhan Railway, the bid section mileage is DK148+630～DK160+725,12.093 kilometers of main track total lengths.Tunnel, Jinzhai County is one of all fronts Control Engineering, also is the heavy difficult point engineering of this bid section, the beginning and the end mileage DK149+959～DK160+725, and total length 10766m, 350 meters of the maximum buried depths of barrel, the minimum depth 32m, longitudinal gradient is established 4.34 ‰ single slope upward slopes in the tunnel.Tunnel, Jinzhai County inclined shaft and Zheng Dong intersect at the DK154+380 place, with tunnel little mileage direction angle of cut 45o, and 482.24 meters of total lengths, the comprehensive gradient 9.30%, inclined shaft adopts the two-way traffic section, adopts the oblique twin to intersect with positive hole.
Jinzhai County's tunnel lining trolley template length is 10.5m, every plate lining cutting length of on average constructing is 10.4m, every plate lining cutting applies little abutment wall and needs artificial 10 work days; little side wall concrete and arch ring concrete joint stubble reinforcing bar adopt Φ 22 screw-thread steels of L=1m; longitudinal pitch 0.5m; every plate lining cutting need meet batch reinforcing bar 42 m, meter 125.16kg.
Tunnel, Jinzhai County total length 10766m applies little side wall concrete and needs labour cost:
10 the work day * (10766m ÷ 10.4m)=10352 work days
10352 work day * 25.8 yuan/work day=267081.6 yuan
The required batch reinforcing bar cost of materials that connects of little side wall concrete and arch ring concrete:
125.16kg×(10766m÷10.4m)=129564.7?kg
129564.7 1000 * 4100 yuan/t of kg ÷=531215.3 yuan
Conventional tunnel lining construction technique need increase cost:
267081.6+531215.3=798296.9 yuan
Can be found out by above analysis, adopt lining trolley described in the utility model to construct, can save 267081.6 yuan of labour costs, save 531215.3 yuan of cost of materials, add up to 798296.9 yuan of reduce project costs, obtained good economic results in society,, be subject to the favorable comment of owner, design, supervisor.
Claims (2)
1. large cross-section tunnel lining trolley, comprise chassis main body (1), be installed in the arch template of chassis main body periphery by the first adjusting screw (2), arch template comprises backform (3) and two side forms (4) hinged with backform, it is characterized in that being hinged with respectively little abutment wall Qu Mo (5) in two side forms (4) lower end; be provided with the second adjusting screw (6) between little abutment wall Qu Mo and the chassis main body, the bent mould end of little abutment wall is provided with over the ground adjusting screw (7).
2. large cross-section tunnel lining trolley according to claim 1 is characterized in that little abutment wall Qu Mo (5) is provided with guide chain (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204412539U CN202832564U (en) | 2012-09-02 | 2012-09-02 | Large-section tunnel lining trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204412539U CN202832564U (en) | 2012-09-02 | 2012-09-02 | Large-section tunnel lining trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832564U true CN202832564U (en) | 2013-03-27 |
Family
ID=47944296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204412539U Expired - Fee Related CN202832564U (en) | 2012-09-02 | 2012-09-02 | Large-section tunnel lining trolley |
Country Status (1)
| Country | Link |
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| CN (1) | CN202832564U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389622A (en) * | 2014-09-26 | 2015-03-04 | 甘肃万泰建设工程有限公司 | Construction method of arched steel lifting molds of tunnel secondary lining arch foot curved wall |
-
2012
- 2012-09-02 CN CN2012204412539U patent/CN202832564U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389622A (en) * | 2014-09-26 | 2015-03-04 | 甘肃万泰建设工程有限公司 | Construction method of arched steel lifting molds of tunnel secondary lining arch foot curved wall |
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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: 20130327 Termination date: 20200902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |