CN210370685U - Template device suitable for variable-section construction in extra-large span tunnel hole - Google Patents
Template device suitable for variable-section construction in extra-large span tunnel hole Download PDFInfo
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- CN210370685U CN210370685U CN201920993982.7U CN201920993982U CN210370685U CN 210370685 U CN210370685 U CN 210370685U CN 201920993982 U CN201920993982 U CN 201920993982U CN 210370685 U CN210370685 U CN 210370685U
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Abstract
The utility model discloses a template device suitable for especially big tunnel hole interior variable section construction of striding. The device comprises a portal frame, a template and a lifting and pressing rod; the portal comprises a main portal beam, a main portal longitudinal beam, an auxiliary portal beam and an auxiliary portal longitudinal beam; the two sides of the bottom of the main portal frame beam are connected with main portal frame longitudinal beams, the top of the main portal frame beam is connected with auxiliary portal frame beams through a plurality of vertical hydraulic cylinders which are parallel left and right, and the outer side surfaces of the two main portal frame longitudinal beams are respectively connected with the auxiliary portal frame longitudinal beams through a plurality of horizontal hydraulic cylinders which are parallel up and down; the template comprises a steel template and a side die; the top of the auxiliary portal frame cross beam is connected with the steel template through a plurality of jack pressing rods, and the outer side surfaces of the two auxiliary portal frame longitudinal beams are connected with the side formwork through a plurality of jack pressing rods; all the parts are connected through bolts and welding modes. The utility model discloses an add and assist portal crossbeam, assist portal longeron and side forms etc. can adjust the section size, be adapted to the two lining constructions that become the section in the tunnel hole of especially big strideing.
Description
Technical Field
The utility model belongs to tunnel construction equipment, concretely relates to template device suitable for especially big tunnel hole interior variable section construction of striding.
Background
At present, with the gradual increase of the construction requirements of the traffic facilities in China and the requirement of the tunnel functionality, the tunnel can be branched and stride in the tunnel, and the lining trolley assembled outside the traditional tunnel cannot be transported to a specified position under the restriction of the section of the tunnel portal. And there is the section change under the long span tunnel normal condition, if adopt the specific lining cutting platform truck of traditional specific section, just need different lining cutting platform trucks at different sections, must lead to the condition of mutual interference when the construction, can cause the very big waste of manpower and materials this moment, directly influence the progress of whole engineering.
Therefore, aiming at the problems, how to realize in-tunnel assembly and carry out injection molding construction on the secondary linings of the tunnels with different sections under the condition of not replacing the trolley is an urgent problem to be solved.
Disclosure of Invention
An object of the utility model is to the above-mentioned not enough that prior art exists, a template device suitable for especially greatly stride in tunnel hole variable section construction is provided.
The purpose of the utility model is realized through the following technical scheme: the template device suitable for variable-section construction in the extra-large span tunnel hole comprises a portal, a template and a jack-press rod; the method is characterized in that: the portal comprises a main portal beam, a main portal longitudinal beam, an auxiliary portal beam and an auxiliary portal longitudinal beam; the two sides of the bottom of the main portal frame beam are connected with main portal frame longitudinal beams, the top of the main portal frame beam is connected with auxiliary portal frame beams through a plurality of vertical hydraulic cylinders which are parallel left and right, and the outer side surfaces of the two main portal frame longitudinal beams are respectively connected with the auxiliary portal frame longitudinal beams through a plurality of horizontal hydraulic cylinders which are parallel up and down; the template comprises a steel template and a side die; the top of the auxiliary portal frame cross beam is connected with the steel template through a plurality of jack pressing rods, and the outer side surfaces of the two auxiliary portal frame longitudinal beams are connected with the side formwork through a plurality of jack pressing rods; all the parts are connected through bolts and welding modes.
Specifically, the jack-pressing rod comprises a jack-pressing steel pipe and jack-pressing rods in threaded connection with two ends of the jack-pressing steel pipe; two ends of the jack steel pipe are provided with internal threads, one end of the jack screw rod is provided with a clamp with a threaded hole, and the other end of the jack screw rod is provided with external threads; the auxiliary portal beam, the auxiliary portal longitudinal beam, the steel template and the side formwork are all provided with connecting ends; and one end of the jack screw rod at the two ends of the jack pressure rod, which is provided with the threaded hole clamp, is connected to the connecting ends of the auxiliary portal beam, the steel template, the auxiliary portal longitudinal beam and the side formwork through bolts.
The utility model discloses an add and assist portal crossbeam, assist portal longeron and side forms etc. can adjust the section size, be adapted to the two lining constructions of the section of becoming in the tunnel hole of especially big striding, the specially adapted has formed the large section tunnel of different spans by the ramp with the thread is crossing. The utility model discloses can realize making things convenient for the dismouting in the hole, convenient during the use, simple, can improve the efficiency of construction, saved the cost of the different template platform trucks of preparation, solved because of the import hole section is less, can't transport whole platform truck to the difficult problem of construction position, have popularization and application and worth.
Drawings
Fig. 1 is a schematic sectional structure diagram of the present invention in use.
Fig. 2 is a schematic structural view of the jack-press rod in fig. 1.
Fig. 3 is a schematic structural view of the jack rod in fig. 2.
Fig. 4 is a schematic view of the side forms and their connecting ends of fig. 1.
Detailed Description
The invention is further described with reference to the following figures and examples.
Referring to fig. 1, the present embodiment includes a gantry, a template, and a jack-press bar. As can be seen from fig. 1, the portal comprises a main portal cross beam 1, a main portal longitudinal beam 2, an auxiliary portal cross beam 3 and an auxiliary portal longitudinal beam 4; the two sides of the bottom of the main portal beam 1 are connected with main portal longitudinal beams 2, and the lower parts of the main portal longitudinal beams 2 are supported on a foundation to play a role in fixing the whole portal; the top of the main portal beam 1 is connected with the auxiliary portal beam 3 through 5 left and right parallel vertical hydraulic oil cylinders 10, the auxiliary portal beam 3 is lifted to a position close to a vault through the vertical hydraulic oil cylinders 10, and the auxiliary portal beam 3 can be lifted to a corresponding position when different sections are constructed; the outer side surfaces of the two main portal longitudinal beams 2 are respectively connected with an auxiliary portal longitudinal beam 4 through 3 horizontal hydraulic oil cylinders 5 which are parallel up and down. The template comprises a steel template 7 and a side template 8; the top of the auxiliary portal frame cross beam 3 is connected with the steel template 7 through a plurality of jack and press rods 9, and the outer side surfaces of the two auxiliary portal frame longitudinal beams 4 are connected with the side formwork 8 through a plurality of jack and press rods 9. The components are connected through bolts and welding modes, wherein the main portal frame cross beam 1 and the main portal frame longitudinal beam 2, the auxiliary portal frame cross beam 3 and the vertical hydraulic oil cylinder 10 are connected through bolts, and the auxiliary portal frame longitudinal beam 4 and the horizontal hydraulic oil cylinder 5 are connected through bolts, so that the assembly and disassembly are convenient.
Referring to fig. 2, 3 and 4, the jack-pressing rod comprises a jack-pressing steel pipe 901 and jack-pressing rods 902 which are in threaded connection with two ends of the jack-pressing rod; internal threads are tapped at two ends of the lifting steel pipe 901, a clamp with a threaded hole is arranged at one end of the lifting screw rod 902, external threads are tapped at the other end of the lifting screw rod, and the length of the lifting screw rod can be finely adjusted through the threads; the auxiliary portal beam 3, the auxiliary portal longitudinal beam 4, the steel template 7 and the side formwork 8 are all provided with connecting ends 6 for connecting the lifting jacks and the pressing rods 9; the end of the jack screw rod 902 at the two ends of the jack pressure rod 9, which is provided with the threaded hole clamp, is connected to the connecting end 6 of the auxiliary portal beam, the steel template, the auxiliary portal longitudinal beam and the side formwork through bolts.
The utility model can change the span of the whole device by changing the positions of the auxiliary portal frame beam 3 and the auxiliary portal frame longitudinal beam 4 and the length of the jack-press rod 9, and then add the template to realize the change of the section; during construction, can transport each part to the construction site, connect through bolt and welding mode between each part, make things convenient for the dismouting, it is less because of the import hole section to have broken, can't transport the difficult problem to the construction position with whole device.
Referring to fig. 1, the working process of the device when being applicable to single-side widening and section changing is as follows, a main portal frame is conveyed to a construction position and connected with each part, when a first large-span section ① exists in a construction hole, an auxiliary portal frame longitudinal beam 4 and an auxiliary portal frame cross beam 3 are moved to designated positions by using hydraulic oil cylinders 5 and 10, a formwork is fixed to the section position by using a jack-press rod 9, construction is carried out, when a second large-span section ② exists in the construction hole and a third large-span section ③ exists in the hole, the auxiliary portal frame longitudinal beam on one side is moved, the length of the jack-press rod 9 is additionally adjusted by additionally arranging a side formwork 8 and is fixed to the section position, and the radius size required.
Claims (2)
1. A template device suitable for variable cross-section construction in a tunnel with an extra large span comprises a portal, a template and a jack-press rod; the method is characterized in that: the portal comprises a main portal beam, a main portal longitudinal beam, an auxiliary portal beam and an auxiliary portal longitudinal beam; the two sides of the bottom of the main portal frame beam are connected with main portal frame longitudinal beams, the top of the main portal frame beam is connected with auxiliary portal frame beams through a plurality of vertical hydraulic cylinders which are parallel left and right, and the outer side surfaces of the two main portal frame longitudinal beams are respectively connected with the auxiliary portal frame longitudinal beams through a plurality of horizontal hydraulic cylinders which are parallel up and down; the template comprises a steel template and a side die; the top of the auxiliary portal frame cross beam is connected with the steel template through a plurality of jack pressing rods, and the outer side surfaces of the two auxiliary portal frame longitudinal beams are connected with the side formwork through a plurality of jack pressing rods; all the parts are connected through bolts and welding modes.
2. The formwork device suitable for variable-section construction in a tunnel with an extra-large span according to claim 1, is characterized in that: the lifting pressure rod comprises a lifting steel pipe and lifting screw rods in threaded connection with the two ends of the lifting steel pipe; two ends of the jack steel pipe are provided with internal threads, one end of the jack screw rod is provided with a clamp with a threaded hole, and the other end of the jack screw rod is provided with external threads; the auxiliary portal beam, the auxiliary portal longitudinal beam, the steel template and the side formwork are all provided with connecting ends; and one end of the jack screw rod at the two ends of the jack pressure rod, which is provided with the threaded hole clamp, is connected to the connecting ends of the auxiliary portal beam, the steel template, the auxiliary portal longitudinal beam and the side formwork through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920993982.7U CN210370685U (en) | 2019-06-28 | 2019-06-28 | Template device suitable for variable-section construction in extra-large span tunnel hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920993982.7U CN210370685U (en) | 2019-06-28 | 2019-06-28 | Template device suitable for variable-section construction in extra-large span tunnel hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210370685U true CN210370685U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920993982.7U Active CN210370685U (en) | 2019-06-28 | 2019-06-28 | Template device suitable for variable-section construction in extra-large span tunnel hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210370685U (en) |
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2019
- 2019-06-28 CN CN201920993982.7U patent/CN210370685U/en active Active
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