CN220015193U - Positioning device for split two-lining trolley of small-radius curve tunnel - Google Patents
Positioning device for split two-lining trolley of small-radius curve tunnel Download PDFInfo
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- CN220015193U CN220015193U CN202321013981.4U CN202321013981U CN220015193U CN 220015193 U CN220015193 U CN 220015193U CN 202321013981 U CN202321013981 U CN 202321013981U CN 220015193 U CN220015193 U CN 220015193U
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- 238000005192 partition Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to the technical field of rail transit, in particular to a small-radius curve tunnel split type two-lining trolley positioning device, which comprises a tunnel contour line and further comprises: the main positioning component comprises a secondary lining trolley contour line, a main trolley and a side trolley are installed in the secondary lining trolley contour line in a spliced mode, a spliced part of the main trolley and the side trolley is arranged on the secondary lining trolley contour line, a tunnel center line is arranged at the center part of the tunnel contour line, the distance between the upper end of the spliced part and the tunnel center line is recorded as an upper fixed offset distance, the distance between the lower end of the spliced part and the tunnel center line is recorded as a lower fixed offset distance, and a lofting point is arranged at the edge part of the secondary lining trolley contour line. After the primary support structure of the double-side wall pilot tunnel is completed, in the process of adopting the split type trolley to construct the secondary lining structure, the split type secondary lining trolley is used for positioning at the small-radius curve section, so that the problem of measuring and positioning by adopting the split type secondary lining trolley when the temporary intermediate wall is not removed in the double-side wall pilot tunnel.
Description
Technical Field
The utility model relates to the technical field of rail transit, in particular to a small-radius curve tunnel split type two-lining trolley positioning device.
Background
Tunnel lining refers to a permanent structure that supports and maintains long-term stability and durability of a tunnel. The function is as follows: support and maintain stability of tunnels; keeping the space required by the running of the train; preventing the weathering of surrounding rock; and the influence of groundwater is relieved. Thus, tunnel liners must have sufficient strength, durability, and some resistance to freezing, penetration, and erosion. The tunnel lining mainly comprises arch rings, side walls, inverted arches and a bottom plate. A drainage ditch is arranged in the tunnel for draining water in the tunnel; with the gradual development of urban subway construction, the construction environment around a dry city is complex, for large-section underground subsurface excavation projects, when a double-side-wall pilot pit method is adopted to apply secondary lining to a tunnel, a split type secondary lining trolley is adopted to replace an integral trolley to apply, and temporary middle partition walls can be removed after secondary lining pouring is completed and required strength is achieved, so that the safety in the construction process is greatly improved. In the process of secondary lining construction of a tunnel with a large section and a small radius curve, the split type secondary lining trolley accurately and rapidly performs trolley posture positioning, and plays an important role in promoting the construction period of engineering and meeting the specified requirements of building limit.
The utility model discloses a split type double side wall pilot tunnel method tunnel lining platform truck of publication No. CN107237639A, this patent includes interconnect's left side lining platform truck, middle part lining platform truck and right side lining platform truck, left side lining platform truck, middle part lining platform truck and right side lining platform truck all include portal assembly, template assembly, left side lining platform truck and right side lining platform truck template assembly include a top arc template and a side template, and middle part lining platform truck template assembly includes a top arc template and two side templates, set up walking device and adjustable lead screw bracing piece at the portal assembly lower extreme, and left side lining platform truck and right side lining platform truck's assembly both sides are connected with tunnel both sides concrete face or construction middle partition wall through side strutting arrangement, and three part lining platform truck components of a whole that can be separated and walk, freely pass through the vertical support of undetached, both can nimble change construction order and can guarantee the safety and stability of structure and peripheral building, improve efficiency of construction, lighten intensity of labour, shorten time, stability is high and economy is reasonable.
However, when the temporary intermediate wall is not removed, the split type two-lining trolley cannot realize measurement and positioning in the double-side-wall pilot pit method undercut tunnel in the prior art, and further the deviation of position accuracy is easy to occur in lining repairing work.
Disclosure of Invention
The utility model aims to provide a split type two-lining trolley positioning device for a small-radius curve tunnel, which aims to solve the problems in the background technology.
The technical scheme of the utility model is as follows: split type two lining platform truck positioner in small radius curve tunnel includes the tunnel contour line, still includes:
the main positioning component comprises a secondary lining trolley contour line, a main trolley and a side trolley are installed in the secondary lining trolley contour line in a spliced mode, a splicing joint is arranged at the splicing position of the main trolley and the side trolley on the secondary lining trolley contour line, a tunnel central line is arranged at the central position of the tunnel contour line, the distance between the upper end of the splicing joint and the tunnel central line is recorded as an upper fixed offset distance, the distance between the lower end of the splicing joint and the tunnel central line is recorded as a lower fixed offset distance, a lofting point is arranged at the edge position of the secondary lining trolley contour line, and a temporary middle partition wall is installed between the main trolley and the side trolley in a temporary splicing mode.
Further technical scheme, interim partition wall includes the curb plate, and the inside of curb plate is provided with the guide slot, and the inside of guide slot is provided with the hole site, and the inside of guide slot inlays and installs the diaphragm, and threaded connection spare is installed in hole site position connection to curb plate and diaphragm.
According to a further technical scheme, the two lining vehicle contours are installed on the inner surface of the tunnel contour in a matched mode.
Further technical scheme, the structure of tunnel central line both sides is symmetrical each other.
According to a further technical scheme, the side trolleys are symmetrically distributed on two sides of the main trolley.
Compared with the prior art, the split type two-lining trolley positioning device for the small-radius curve tunnel provided by the utility model has the following improvement and advantages: the utility model discloses a positioning method of a split type two-lining trolley for a small-radius curve tunnel, which well solves the problem of measuring and positioning by adopting the split type two-lining trolley when a temporary intermediate wall is not removed in the double-side-wall pilot pit method underground tunnel in the process of adopting the split type trolley to apply the split type two-lining trolley to the small-radius curve section after the initial supporting structure of the double-side-wall pilot pit method underground tunnel is completed.
Drawings
The utility model is further explained below with reference to the drawings and examples:
FIG. 1 is a schematic view of a longitudinal cross-sectional structure of the present utility model;
FIG. 2 is a schematic longitudinal section of the tunnel of the present utility model;
FIG. 3 is a schematic longitudinal cross-sectional view of the trolley positioning assembly of the present utility model;
fig. 4 is a schematic perspective view of a temporary intermediate partition wall according to the present utility model.
Reference numerals illustrate:
1. a main trolley; 2. a side trolley; 3. a lofting point; 4. splicing seams; 5. fixing offset distance; 6. a lower fixed offset; 7. a temporary middle partition wall; 8. a tunnel contour; 9. a tunnel center line; 10. a second liner wheel profile; 11. a side plate; 12. hole sites; 13. and a transverse plate.
Detailed Description
The following detailed description of the present utility model clearly and fully describes the technical solutions of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Embodiment one:
the utility model provides a small radius curve tunnel split type two-lining trolley positioning device by improving the positioning device, which has the technical scheme that:
as shown in fig. 1-4, the positioning device for the split-type two-lining trolley of the small-radius curve tunnel comprises a tunnel contour line 8 and further comprises: the main positioning component comprises a secondary lining trolley contour line 10, a main trolley 1 and a side trolley 2 are installed in the secondary lining trolley contour line 10 in a spliced mode, a splicing seam 4 is arranged at the splicing position of the main trolley 1 and the side trolley 2 on the secondary lining trolley contour line 10, a tunnel central line 9 is arranged at the central position of the tunnel contour line 8, the distance between the upper end of the splicing seam 4 and the tunnel central line 9 is recorded as an upper fixed offset distance 5, the distance between the lower end of the splicing seam 4 and the tunnel central line 9 is recorded as a lower fixed offset distance 6, a lofting point 3 is arranged at the edge position of the secondary lining trolley contour line 10, and a temporary middle partition wall 7 is installed between the main trolley 1 and the side trolley 2 in a temporary spliced mode.
In the embodiment of the scheme, the positioning method of the split type two-lining trolley positioning device for the small-radius curve tunnel is as follows: 1. after the assembly and debugging of the main trolley 1 and the side trolley 2 are completed, checking whether the linear parameters of the two-lining trolley contour line 10 and the tunnel contour line 8 are identical. 2. The method comprises the steps of determining three trolleys according to the advancing direction of tunnel construction, uniformly determining initial mileage, shifting a tunnel center line 9 according to the offset in a tunnel in a design drawing, guiding the trolley initial mileage and trolley correct positioning by using fixed offset distances (namely upper fixed offset distance 5, lower fixed offset distance 6 and offset distance between a lower panel of the side trolley 2 and a lofting point 3) at a joint of a main trolley 1, a side trolley 2 and a lower panel of the two side trolleys 2 and a lofting point 3, and fixed heights (design contour height of a tunnel secondary lining structure) at a hinged point of the panel of the side trolley 2; 3. determination of the terminal mileage of the trolley: the innermost side of the curve is 200mm (determined according to the radius of the design curve), the outermost side is 70mm (determined according to the radius of the design curve), the middle part is controlled according to linear transition, the center line 9 of the tunnel is offset according to the offset in the tunnel in the design drawing by the same trolley starting mileage, and the trolley finishing mileage and the trolley panel position are guided to be correctly positioned by using fixed offset (offset from the edge joint 4 to the tunnel center line 9) at the edge joint 4 of the main trolley 1 and the side trolley 2 and fixed height (height of the design contour of the two-lining structure) point positions at the panel hinge point of the side trolley 2.
Embodiment two:
based on the positioning device for the split type two-lining trolley of the small-radius curve tunnel provided by the first embodiment of the utility model, the second embodiment of the utility model provides the positioning device for the split type two-lining trolley of the small-radius curve tunnel. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone. A second embodiment of the present utility model will be further described with reference to the drawings and embodiments.
As shown in fig. 1-4, the split type two lining trolley positioning device for the small-radius curve tunnel comprises a temporary middle partition wall 7, wherein the temporary middle partition wall 7 comprises a side plate 11, a guide groove is formed in the side plate 11, a hole site 12 is formed in the guide groove, a transverse plate 13 is embedded and installed in the guide groove, and a threaded connecting piece is connected and installed at the position of the hole site 12 between the side plate 11 and the transverse plate 13.
In the embodiment of the solution, the temporary intermediate partition 7 is designed as a simply detachable component, wherein the side plates 11 are used for realizing longitudinal plugging, the transverse plates 13 are used for realizing transverse plugging, and the threaded connectors installed inside the hole sites 12 are used for realizing connection and fixation between the side plates 11 and the transverse plates 13.
The small-radius curve tunnel split type two-lining trolley positioning device is characterized in that two-lining trolley contour lines 10 are installed on the inner surface of a tunnel contour line 8 in an anastomotic manner.
In the embodiment of the scheme, the secondary lining car contour line 10 and the tunnel contour line 8 are mutually matched for realizing the primary positioning effect.
The split type two lining trolley positioning device for the small-radius curve tunnel has the structure that the structures at two sides of the center line 9 of the tunnel are symmetrical.
In the embodiment of the present embodiment, this embodiment is used to secure the mounting orientations of the main carriage 1 and the side carriage 2 inside the present apparatus.
The small-radius curve tunnel split type two-lining trolley positioning device is characterized in that side trolleys 2 are symmetrically distributed on two sides of a main trolley 1.
In the embodiment of the present embodiment, this embodiment is used to secure the mounting orientations of the main carriage 1 and the side carriage 2 inside the present apparatus.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (5)
1. The utility model provides a split type two lining platform truck positioner in small radius curve tunnel, includes tunnel contour line (8), its characterized in that still includes:
the main positioning component comprises a secondary lining trolley profile line (10), a main trolley (1) and a side trolley (2) are installed in the secondary lining trolley profile line (10) in a spliced mode, a splicing part of the main trolley (1) and the side trolley (2) on the secondary lining trolley profile line (10) is provided with a splicing seam (4), a tunnel center line (9) is arranged at the central part of the tunnel profile line (8), the upper end of the splicing seam (4) and the distance between the tunnel center line (9) are marked as an upper fixed offset distance (5), the lower end of the splicing seam (4) and the distance between the tunnel center line (9) are marked as a lower fixed offset distance (6), a lofting point (3) is arranged at the edge part of the secondary lining trolley profile line (10), and a temporary middle partition wall (7) is temporarily inserted between the main trolley (1) and the side trolley (2).
2. The small radius curve tunnel split type two lining trolley positioning device according to claim 1, wherein: the temporary middle partition wall (7) comprises a side plate (11), a guide groove is formed in the side plate (11), a hole site (12) is formed in the guide groove, a transverse plate (13) is embedded in the guide groove, and a threaded connecting piece is connected and installed on the position of the hole site (12) between the side plate (11) and the transverse plate (13).
3. The small radius curve tunnel split type two lining trolley positioning device according to claim 1, wherein: the two lining wheel profiles (10) are installed on the inner surface of the tunnel profile (8) in a fit mode.
4. The small radius curve tunnel split type two lining trolley positioning device according to claim 1, wherein: the structures at two sides of the central line (9) of the tunnel are symmetrical.
5. The small radius curve tunnel split type two lining trolley positioning device according to claim 1, wherein: the side trolleys (2) are symmetrically distributed on two sides of the main trolley (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321013981.4U CN220015193U (en) | 2023-04-28 | 2023-04-28 | Positioning device for split two-lining trolley of small-radius curve tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321013981.4U CN220015193U (en) | 2023-04-28 | 2023-04-28 | Positioning device for split two-lining trolley of small-radius curve tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220015193U true CN220015193U (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321013981.4U Active CN220015193U (en) | 2023-04-28 | 2023-04-28 | Positioning device for split two-lining trolley of small-radius curve tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220015193U (en) |
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2023
- 2023-04-28 CN CN202321013981.4U patent/CN220015193U/en active Active
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