CN213063598U - Stabilizing assembly for stabilizing trolley in secondary lining construction of oversized longitudinal slope tunnel - Google Patents
Stabilizing assembly for stabilizing trolley in secondary lining construction of oversized longitudinal slope tunnel Download PDFInfo
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- CN213063598U CN213063598U CN202021892495.0U CN202021892495U CN213063598U CN 213063598 U CN213063598 U CN 213063598U CN 202021892495 U CN202021892495 U CN 202021892495U CN 213063598 U CN213063598 U CN 213063598U
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- trolley
- steel
- inverted arch
- stabilizing assembly
- supporting
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Abstract
The utility model discloses a stabilizing component for stabilizing a trolley in the secondary lining construction of an oversized longitudinal slope tunnel, which comprises an anti-sliding structure, a supporting lead screw structure positioned at the bottom of the trolley and a supporting structure used for supporting the trolley along the gravity direction; the anti-sliding structure comprises a chain block, an inverted arch ground anchor and a pull ring, wherein the inverted arch ground anchor is embedded in an inverted arch; the support screw structure comprises a plurality of screws fixed at the bottom of the lower longitudinal beam of the trolley and double-spliced I-shaped steel fixed on the steel rail and used for supporting the screws, and the double-spliced I-shaped steel is provided with a rail passing hole matched with the steel rail; the supporting structure comprises a horizontal supporting platform arranged in the inverted arch and a wedge-shaped adjusting steel box positioned between the horizontal supporting platform and the trolley. The stabilizing assembly provided by the utility model can effectively increase the stability of the trolley on the steel rail and avoid accidents such as sliding, overturning and the like; the smooth work of the trolley in the secondary lining construction of the oversized longitudinal slope tunnel can be guaranteed, the construction efficiency is improved, and the construction cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of the tunnel construction, concretely relates to be used for firm subassembly of firm platform truck in super large longitudinal gradient tunnel secondary lining construction.
Background
In tunnel construction, secondary lining generally adopts the platform truck to be under construction, carries out the construction through the platform truck, and the efficiency of construction is high. In the construction process of the trolley method, in order to enable the trolley to walk without the risk of sliding, the maximum longitudinal slope of a road tunnel is generally required to be not more than 4 percent, and the maximum longitudinal slope of a railway tunnel is not more than 2 percent; when the gradient of the ramp on which the tunnel is located is larger than the value, the tunnel is called an oversized longitudinal slope tunnel. In the construction of the tunnel with the oversized longitudinal slope, on one hand, due to the gravity action of the trolley, on the other hand, downward and horizontal component forces exist in the trolley in the concrete pouring process, so that the trolley can run and tilt, and other risks are caused, and potential safety hazards are brought.
In order to ensure the construction safety, the cast-in-place formwork support method is generally adopted for construction in the construction of the oversized longitudinal slope tunnel, but the method has the defects of more construction procedures, more input manpower, long construction period, high cost and the like.
Disclosure of Invention
Not enough to prior art, the utility model aims at providing a be used for firm subassembly of firm platform truck in super large longitudinal gradient tunnel secondary lining construction.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a subassembly that stabilizes that is used for firm platform truck in super large longitudinal gradient tunnel secondary lining construction, its characterized in that: the device comprises an anti-sliding structure, a support screw structure positioned at the bottom of a trolley and a support structure used for supporting the trolley along the gravity direction; wherein:
the anti-sliding structure comprises a chain block, an inverted arch ground anchor and a pull ring, wherein the inverted arch ground anchor is embedded in an inverted arch, and the pull ring is fixed at the upper end of a lower longitudinal beam of the trolley; one end of the inverted chain is connected with an inverted arch ground anchor, and the other end of the inverted chain is connected with the pull ring; the anti-sliding structure is provided with eight groups, wherein two ends of the trolley are respectively provided with four groups, and two sides of each end of the trolley are respectively provided with two groups; four groups positioned on the upper section of the slope are synchronously and uniformly released downwards, and four groups positioned on the lower section of the slope are reversed for use;
the supporting lead screw structure comprises a plurality of lead screws fixed at the bottom of the lower longitudinal beam of the trolley and double-spliced I-shaped steel fixed on the steel rail and used for supporting the lead screws, and the double-spliced I-shaped steel is provided with a rail passing hole matched with the steel rail; because the lead screw can not directly support on the rail, through set up the double-pin I-steel on the rail and provide the strong point for the lead screw, support like this and stabilize, intensity and rigidity all meet the requirements. When the double-spliced I-shaped steel is installed on the steel rail, the rail passing hole of the double-spliced I-shaped steel is aligned to the steel rail and then can be fixed through welding. A plurality of fixing bolts are embedded in the inverted arch, and the steel rail is fixed on the top surface of the inverted arch through the fixing bolts;
the supporting structure comprises a horizontal supporting platform arranged in the inverted arch and a wedge-shaped adjusting steel box positioned between the horizontal supporting platform and the trolley, wherein a plurality of reinforcing rib plates are fixed in the wedge-shaped adjusting steel box, and the integral strength of the wedge-shaped adjusting steel box is improved through the reinforcing rib plates; the upper end face of the wedge-shaped adjusting steel box is parallel to the inclined plane where the bottom face of the lower longitudinal beam of the trolley is located. The wedge-shaped adjusting steel box can support the trolley in the vertical direction, so that the inertia effect caused by gravity of the trolley is reduced, and the trolley is in a relatively stable state. Furthermore, the top of the horizontal support platform is fixed with a support leg, and the wedge-shaped adjusting steel box is abutted against the top of the support leg.
According to a further preferred technical scheme, the stabilizing assembly further comprises a safety steel wire rope, one end of the safety steel wire rope is fixedly connected with a lower longitudinal beam of the trolley, and the other end of the safety steel wire rope is fixedly connected with an inverted arch ground anchor; the safety steel wire rope is provided with a wire grip for adjusting the length. In the downward moving process of the trolley, the length tightener is adjusted to adjust the length along with the downward movement of the trolley, so that the trolley can be prevented from sliding due to failure of a guide chain when the trolley travels downward, and a double-safety effect is achieved;
in a further preferred technical scheme, the stabilizing assembly further comprises an iron shoe fixed on the steel rail. The running system of the trolley can be locked through the iron shoes, and the purpose of effectively preventing slipping is achieved.
According to a further preferred technical scheme, the stabilizing assembly further comprises an inclined strut steel pipe, the inclined strut steel pipe is located at the lower section of the inverted arch slope, one end of the inclined strut steel pipe is supported on the trolley, and the other end of the inclined strut steel pipe is supported on the steel rail.
According to a further preferable technical scheme, an end steel rail limiting plate is arranged at the lower end part of the steel rail, and the bottom of the end steel rail limiting plate is fixed in the inverted arch. The end steel rail limiting plate has the function of enhancing the stability of the steel rail.
In a further preferred technical scheme, the stabilizing assembly further comprises an anti-skid block fixed at the bottom of the upper longitudinal beam of the trolley. Through setting up anti-skidding dog, can prevent that the vault template from breaking away from the emergence of swift current phenomenon down with the portal because of receiving obliquely decurrent gravity component.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a firm subassembly that is used for firm platform truck in super large longitudinal gradient tunnel secondary lining construction through preventing the design of swift current car structure, support screw structure and bearing structure isotructure, can effectively increase the stability of platform truck on the rail, avoids it because the slope is too big leads to it to take place to slide the car, accident such as topple. Can guarantee the smooth work of platform truck in super large longitudinal gradient tunnel secondary lining construction through this subassembly that stabilizes, improve the efficiency of construction, accelerate the construction progress, in addition, can reduce personnel's input, reduce construction cost.
Drawings
FIG. 1 is a front view of a trolley in a tunnel;
FIG. 2 is a side cross-sectional view of the trolley in a tunnel;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic structural view of a support screw structure and a support structure;
FIG. 5 is a schematic structural diagram of a double-spliced I-shaped steel;
FIG. 6 is an indication diagram of the matching of double-spliced I-shaped steel and steel rails;
FIG. 7 is a perspective view of a wedge-shaped adjusting steel box;
reference numerals: 100-trolley, 101-upper longitudinal beam, 102-lower longitudinal beam, 200-inverted arch and 300-steel rail; 1-anti-sliding structure, 11-inverted chain, 12-inverted arch ground anchor and 13-pull ring; 2-supporting a screw rod structure, 21-a screw rod, 22-double-spliced I-shaped steel and 23-a rail passing hole; 3-supporting structure, 31-horizontal supporting platform, 32-wedge-shaped adjusting steel box, 33-reinforcing rib plate and 34-supporting leg; 4-fixing bolts, 5-safety steel wire ropes, 6-iron shoes, 7-diagonal steel pipes, 8-end steel rail limiting plates and 9-anti-skidding stop blocks.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the present invention, "fixed", "fixedly connected" and "mounted" mean that two parts connected to each other are fixed to each other, and are generally fixed to each other by welding, screws, or gluing.
In the description of the present invention, the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-7, a stabilizing assembly for stabilizing a trolley in secondary lining construction of an oversized longitudinal slope tunnel comprises an anti-sliding trolley structure 1, a supporting screw rod structure 2 positioned at the bottom of the trolley and a supporting structure 3 for supporting the trolley along the gravity direction; wherein:
in detail, as shown in fig. 2, the anti-rolling structure 1 comprises a chain block 11, an inverted arch ground anchor 12 pre-embedded in an inverted arch 200 and a pull ring 13 fixed on a trolley 100, wherein the pull ring 13 is fixed at the upper end of a lower longitudinal beam of the trolley; one end of the inverted chain 11 is connected with an inverted arch ground anchor 12, and the other end of the inverted chain 11 is connected with a pull ring 13; the anti-sliding structure 1 is provided with eight groups, wherein two ends of the trolley are provided with four groups respectively, and two sides of each end of the trolley are provided with two groups respectively; four groups positioned on the upper section of the slope are synchronously and uniformly released downwards, and four groups positioned on the lower section of the slope are reversed for use;
in detail shown in fig. 3-7, the support screw structure 2 comprises a plurality of screws 21 fixed at the bottom of the lower longitudinal beam of the trolley and double-spliced i-beams 22 fixed on the steel rail 300 and used for supporting the screws, and the double-spliced i-beams 22 are provided with rail passing holes 23 matched with the steel rail; because the lead screw 21 can not directly support on the rail, the double-spliced I-shaped steel 22 is arranged on the rail to provide a supporting point for the lead screw 21, so that the support is stable, and the strength and the rigidity meet the requirements. When the double-spliced I-shaped steel is installed on the steel rail, the rail passing hole of the double-spliced I-shaped steel is aligned to the steel rail and then can be fixed through welding. A plurality of fixing bolts 4 are embedded in the inverted arch 200, and the rail 300 is fixed to the top surface of the inverted arch 200 by the fixing bolts 4
The supporting structure 3 comprises a horizontal supporting platform 31 arranged in an inverted arch and a wedge-shaped adjusting steel box 32 positioned between the horizontal supporting platform 31 and the trolley 100, a plurality of reinforcing rib plates 33 are fixed in the wedge-shaped adjusting steel box 32, and the overall strength of the wedge-shaped adjusting steel box is improved through the reinforcing rib plates 33; the upper end surface of the wedge-shaped adjusting steel box 32 is parallel to the inclined plane of the bottom surface of the lower longitudinal beam of the trolley. The wedge-shaped adjusting steel box can support the trolley in the vertical direction, so that the inertia effect caused by gravity of the trolley is reduced, and the trolley is in a relatively stable state.
Referring again to fig. 2, as a preferred embodiment, the stabilizing assembly further includes a safety steel wire rope 5, one end of the safety steel wire rope 5 is fixedly connected with the lower longitudinal beam 102 of the trolley, and the other end is fixedly connected with the inverted arch ground anchor 12; the safety wire rope 5 is provided with a wire grip (not shown) for adjusting the length. In the downward moving process of the trolley, the length tightener is adjusted to adjust the length along with the downward movement of the trolley, so that the trolley can be prevented from sliding due to failure of a guide chain when the trolley travels downward, and a double-safety effect is achieved; furthermore, the stabilizing assembly further comprises an iron shoe 6 fixed on the steel rail, and the walking system of the trolley can be locked through the iron shoe 6, so that the aim of effectively preventing slipping is fulfilled. The stabilizing assembly further comprises an inclined strut steel pipe 7, the inclined strut steel pipe 7 is positioned at the lower section of the slope of the inverted arch, one end of the inclined strut steel pipe 7 is supported on the trolley, and the other end of the inclined strut steel pipe is supported on the inverted arch 200; the lower end part of the steel rail 300 is provided with an end steel rail limiting plate 8, the bottom of the end steel rail limiting plate 8 is fixed in the inverted arch 200, and the end steel rail limiting plate 8 has the function of enhancing the stability of the steel rail 300. Further, the stabilizing assembly further comprises an anti-slip block 9 fixed at the bottom of the upper longitudinal beam 101 of the trolley. By arranging the anti-skid stop block 9, the phenomenon that the vault template is separated from the portal frame and slides downwards due to the fact that the vault template is subjected to the gravity component force in the inclined downward direction can be prevented.
In the construction of super large longitudinal gradient tunnel secondary lining, can guarantee the smooth work of platform truck through this firm subassembly, improve the efficiency of construction, accelerate the construction progress, in addition, can reduce personnel's input, reduce construction cost.
Claims (9)
1. The utility model provides a subassembly that stabilizes that is used for firm platform truck in super large longitudinal gradient tunnel secondary lining construction, its characterized in that: the device comprises an anti-sliding structure, a support screw structure positioned at the bottom of a trolley and a support structure used for supporting the trolley along the gravity direction; wherein:
the anti-sliding structure comprises a chain block, an inverted arch ground anchor and a pull ring, wherein the inverted arch ground anchor is embedded in an inverted arch, and the pull ring is fixed on a lower longitudinal beam of the trolley; one end of the inverted chain is connected with an inverted arch ground anchor, and the other end of the inverted chain is connected with the pull ring;
the supporting lead screw structure comprises a plurality of lead screws fixed at the bottom of the lower longitudinal beam of the trolley and double-spliced I-shaped steel fixed on the steel rail and used for supporting the lead screws, and the double-spliced I-shaped steel is provided with a rail passing hole matched with the steel rail; a plurality of fixing bolts are embedded in the inverted arch, and the steel rail is fixed on the top surface of the inverted arch through the fixing bolts;
the supporting structure comprises a horizontal supporting platform arranged in the inverted arch and a wedge-shaped adjusting steel box positioned between the horizontal supporting platform and the trolley; the upper end face of the wedge-shaped adjusting steel box is parallel to the inclined plane where the bottom face of the lower longitudinal beam of the trolley is located.
2. The stabilizing assembly of claim 1, wherein: the stabilizing assembly further comprises a safety steel wire rope, one end of the safety steel wire rope is fixedly connected with a lower longitudinal beam of the trolley, and the other end of the safety steel wire rope is fixedly connected with an inverted arch ground anchor; the safety steel wire rope is provided with a wire grip for adjusting the length.
3. The stabilizing assembly of claim 1, wherein: the stabilizing assembly further comprises an iron shoe fixed on the steel rail.
4. The stabilizing assembly of claim 1, wherein: the stabilizing assembly further comprises an inclined strut steel pipe, the inclined strut steel pipe is located at the lower section of the slope of the inverted arch, one end of the inclined strut steel pipe is supported on the trolley, and the other end of the inclined strut steel pipe is supported on the steel rail.
5. The stabilizing assembly of claim 1, wherein: the lower end part of the steel rail is provided with an end steel rail limiting plate, and the bottom of the end steel rail limiting plate is fixed in the inverted arch.
6. The stabilizing assembly according to any one of claims 1-5, wherein: eight sets of anti-sliding structures are arranged, wherein four sets are arranged at two ends of the trolley respectively, and two sets are arranged at two sides of each end of the trolley respectively.
7. The stabilizing assembly according to any one of claims 1-5, wherein: and a plurality of reinforcing rib plates are fixed in the wedge-shaped adjusting steel box.
8. The stabilizing assembly according to any one of claims 1-5, wherein: the stabilizing assembly further comprises an anti-slip stop block fixed to the bottom of the upper longitudinal beam of the trolley.
9. The stabilizing assembly according to any one of claims 1-5, wherein: the top of the horizontal supporting table is fixed with a supporting leg, and the wedge-shaped adjusting steel box is abutted against the top of the supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021892495.0U CN213063598U (en) | 2020-09-01 | 2020-09-01 | Stabilizing assembly for stabilizing trolley in secondary lining construction of oversized longitudinal slope tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021892495.0U CN213063598U (en) | 2020-09-01 | 2020-09-01 | Stabilizing assembly for stabilizing trolley in secondary lining construction of oversized longitudinal slope tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213063598U true CN213063598U (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021892495.0U Expired - Fee Related CN213063598U (en) | 2020-09-01 | 2020-09-01 | Stabilizing assembly for stabilizing trolley in secondary lining construction of oversized longitudinal slope tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213063598U (en) |
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2020
- 2020-09-01 CN CN202021892495.0U patent/CN213063598U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210427 |