CN210440048U - Die carrier suitable for curved well wall construction of multiple arch tunnel is used - Google Patents
Die carrier suitable for curved well wall construction of multiple arch tunnel is used Download PDFInfo
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- CN210440048U CN210440048U CN201920828243.2U CN201920828243U CN210440048U CN 210440048 U CN210440048 U CN 210440048U CN 201920828243 U CN201920828243 U CN 201920828243U CN 210440048 U CN210440048 U CN 210440048U
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Abstract
The utility model discloses a die carrier suitable for curved well wall construction of even encircleed tunnel is used, including the built-up plate, lead screw elevating gear, eccentric braced frame system, lateral rotation flexible hydraulic cylinder and universal removal wheel, the built-up plate includes the branch template that the polylith rule was arranged, be in the same place through pin joint behind the edge cross joint of two arbitrary adjacent branch templates, be provided with the work window on the branch template, a plurality of lead screw elevating gear evenly arrange and install on eccentric braced frame system, lateral rotation flexible hydraulic cylinder's stiff end inlays admittedly on tunnel side wall, its work end links to each other with eccentric braced frame system, eccentric braced frame system's bottom equipartition has a plurality of universal removal wheels. The utility model discloses the natural transition of variable cross section mid-board cross-section axial change department is realized in built-up plate's design, and this die carrier has avoided taking place the problem of misposition and deformation under the vibrations of production such as drilling blasting, construction, effectively guarantees the quality of building of wall in the song, prevents the deformation of wall in the song, fracture.
Description
Technical Field
The utility model relates to a tunnel construction technical field especially relates to a die carrier suitable for curved well wall construction of even arch tunnel is used.
Background
The multi-arch tunnel is commonly adopted in mountain expressway tunnels and urban short tunnels due to the characteristics of saving land, improving road line shapes, beautifying the appearance of tunnel openings and the like, and compared with the common single-arch tunnel, the intermediate wall becomes an important stressed member of the multi-arch tunnel. The intermediate wall of the multi-arch tunnel is commonly provided with a straight intermediate wall and a curved intermediate wall, the stress concentration of the straight intermediate wall is obvious, the stress concentration of the curved intermediate wall is more reasonable, the stress concentration is reduced, and the waterproof and drainage treatment is more convenient, so that the intermediate wall of the curved intermediate wall is widely adopted in the construction of the multi-arch tunnel. The curved middle wall of the multi-arch tunnel needs to bear the complex actions from the overlying surrounding rocks and the main hole tunnels on two sides, so that the construction quality of the curved middle wall is very important, and is directly related to the construction safety, the construction progress and the operation safety of the multi-arch tunnel.
In the prior art, the whole curved middle wall is in a curved form, firstly, when an integral large template is adopted, because the guide hole space of the curved middle wall is narrow, the occupied area of the integral template is large, the installation and erection of the template are difficult, gaps are easy to appear in the lap joint between the axial templates of the curved middle wall, the slurry leakage problem during concrete pouring is caused, and the slab staggering is even caused in serious cases, the quality of template construction is difficult to ensure, the construction quality is seriously influenced, the phenomenon is particularly obvious in the construction of the variable cross-section curved middle wall, the transition at the axial cross-section change part of the curved middle wall is not smooth, the appearance needs secondary treatment, and the construction progress is influenced; secondly, when the combined small formwork is adopted, the problem that local radians are not matched often occurs when vertical and axial formworks of the curved middle wall are lapped, seams between the small formwork and the small formwork are not tight, wedge blocks are additionally arranged in construction at the present stage to plug gaps between the formworks, the construction progress of the middle partition wall is seriously influenced, and the surface appearance of the poured middle partition wall needs secondary treatment and consumes manpower and financial resources.
In summary, the prior art mainly has two disadvantages, 1) the movable template with the track adopted in the prior art is limited by the bottom steel rail, and the position of the template is difficult to adjust for the second time after the laying of the steel rail is finished, so that the construction process is influenced; 2) the template and the supporting system used in the construction of the intermediate wall in the current stage have poor anti-seismic performance, the template is easy to shift and deform under the vibration generated by drilling blasting, construction machinery operation and the like, the pouring quality of the curved intermediate wall is seriously influenced, and the tunnel construction safety is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a die carrier suitable for curved well wall construction usefulness in even encircleed tunnel solves the die carrier among the prior art and adjusts the difficulty and seriously influence the construction progress, and the die carrier among the prior art easily takes place the dislocation and warp in the construction, influences the safe problem of tunnel construction.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to a die carrier suitable for wall construction in arch-connected tunnel curve, including built-up plate, lead screw elevating gear, eccentric braced frame system, lateral rotation flexible hydraulic cylinder and universal moving wheel, the built-up plate includes the branch template that many rules were arranged, arbitrary adjacent two the edge cross joint of branch template is in the same place, through the pin joint in the edge cross section, part the center of branch template is provided with the work window, a plurality of lead screw elevating gear evenly arrange install on eccentric braced frame system, the work end of lead screw elevating gear with correspond divide the template to be connected, the upper portion of eccentric braced frame system sets up air pipe, the stiff end of lateral rotation flexible hydraulic cylinder inlays to be fixed on the tunnel side wall, lateral rotation flexible hydraulic cylinder's work end with eccentric braced frame system links to each other, and a plurality of universal moving wheels are uniformly distributed at the bottom of the eccentric supporting frame system.
Further, the eccentric support frame system comprises a support side cross beam, a support middle cross beam, a support side longitudinal beam, a support middle longitudinal beam, a support upright post, a support vertical beam, a bottom cross beam, a bottom longitudinal beam and an inclined support, wherein the support side cross beam, the support middle cross beam, the support side longitudinal beam, the support middle longitudinal beam, the support upright post, the support vertical beam, the bottom cross beam, the bottom longitudinal beam and the inclined support are regularly arranged and connected together to form a support frame body, the support frame body is specifically provided with two support side cross beams, the two support side cross beams are symmetrically arranged in the arch tunnel, and the combined template passes through the screw rod lifting device and is installed on the opposite surfaces of the two support.
Still further, the lateral rotation telescopic hydraulic oil cylinder is specifically provided with two rows and three in each row, a plurality of lateral rotation telescopic hydraulic oil cylinders are installed on the side wall of the tunnel, and the working ends of the lateral rotation telescopic hydraulic oil cylinders are connected to the support vertical beams.
And further, the working end of the lateral rotation telescopic hydraulic oil cylinder works to drive the angle, height and direction of the combined template to be adjusted.
Still further, universal removal wheel is installed on the bottom longeron, every specifically be provided with three on the bottom longeron universal removal wheel and equidistant equipartition.
Still further, the ventilation duct is installed above the support middle longitudinal beam and is arranged in parallel with the support middle longitudinal beam.
Compared with the prior art, the utility model discloses a beneficial technological effect:
1) the utility model can realize the close lapping between the axial and vertical branch templates of the arch tunnel curved middle wall, solve the problems of slurry leakage and slab staggering caused by the lapping gap between the templates, realize the natural transition of the axial change part of the cross section of the variable cross-section middle partition wall, and smooth and natural surface appearance of the middle partition wall;
2) the utility model solves the problems of dislocation and deformation of the template under the vibration generated by drilling blasting, construction machinery operation and the like, effectively ensures the pouring quality of the curved middle wall, and prevents the curved middle wall from deforming and cracking;
3) the eccentric supporting frame system of the utility model is used, so that the die carrier is more stable and firm, and the construction of the curved middle wall is more stable and safe;
4) the utility model discloses convenient and fast's adjustment template lays the position to can carry out the adjustment of die carrier device angle, height, position, trend many times, make the template construction of wall more nimble in the song, accelerate the construction progress, and the setting up of universal removal wheel makes this die carrier remove convenient, convenient to detach, the efficiency of construction height.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a front view of the formwork for constructing the curved middle wall of the multi-arch tunnel of the present invention;
FIG. 2 is a side view of the formwork for constructing the curved middle wall of the multi-arch tunnel of the present invention;
FIG. 3 is a schematic view of the lap joint structure of the sectional form of the present invention;
FIG. 4 is a schematic view of the lap joint position of the sectional forms of the present invention;
description of reference numerals: 1. combining the templates; 2. a screw rod lifting device; 3. an eccentric braced frame system; 4. Laterally rotating the telescopic hydraulic oil cylinder; 5. a universal moving wheel; 6. a ventilation duct; 7. supporting the edge beam; 8. supporting the middle cross beam; 9. supporting the side longitudinal beam; 10. supporting the middle longitudinal beam; 11. supporting the upright post; 12. supporting the vertical beam; 13. A bottom cross member; 14. a bottom stringer; 15. obliquely supporting; 16. a working window; 17. a pin.
Detailed Description
As shown in fig. 1-4, a formwork for constructing a curved middle wall of an arch-connected tunnel comprises a composite formwork 1, a lead screw lifting device 2, an eccentric support frame system 3, a lateral rotary telescopic hydraulic oil cylinder 4 and a universal moving wheel 5, wherein the composite formwork 1 comprises a plurality of sub-formworks which are regularly arranged, the edges of any two adjacent sub-formworks are crossed and clamped together, the edge cross sections are connected together through a pin 17, the center of part of the sub-formworks is provided with a working window 16, the lead screw lifting devices 2 are uniformly arranged and installed on the eccentric support frame system 3, the working ends of the lead screw lifting devices 2 are connected with the corresponding sub-formworks, the upper part of the eccentric support frame system 3 is provided with a ventilating duct 6, the fixed end of the lateral rotary telescopic hydraulic oil cylinder 4 is embedded and fixed on the side wall of the tunnel, and the working end of the lateral rotary telescopic hydraulic oil cylinder 4 is connected with the eccentric support frame system 3, and a plurality of universal moving wheels 5 are uniformly distributed at the bottom of the eccentric supporting frame system 3. Particularly, the concave-convex edges of the sub-templates of the combined template 1 are provided with pin lug holes, and the sub-templates are connected together through pins 17 after being spliced, so that the connection of the sub-templates in the vertical direction of the curved middle wall and the axial direction of the curved middle wall is tighter, the problem of slurry leakage is prevented, natural transition of axial change positions of the cross section of the variable cross-section middle partition wall is realized, and the appearance quality of template construction is ensured; the polytetrafluoroethylene coatings are coated on the pin ear holes and the surfaces of the pins of the combined templates, so that the overlapping effect of the combined templates is prevented from being influenced by the impurities such as concrete adhered to the joints of the split templates, the abrasion of the pin ear holes and the pins is effectively reduced, and the corrosion resistance is enhanced. The screw rod lifting device is arranged between each sub-template and the eccentric support frame system, the position and the angle of the combined template can be further adjusted through the lifting control of the screw rod after the sub-templates are arranged, the pouring quality of the curved middle wall is further guaranteed, and meanwhile, the eccentric support frame system 3 is assisted to support the combined template.
The eccentric supporting frame system 3 comprises a supporting side cross beam 7, a supporting middle cross beam 8, a supporting side longitudinal beam 9, a supporting middle longitudinal beam 10, a supporting upright post 11, a supporting vertical beam 12, a bottom cross beam 13, a bottom longitudinal beam 14 and an inclined support 15, wherein the supporting side cross beam 7, the supporting middle cross beam 8, the supporting side longitudinal beam 9, the supporting middle longitudinal beam 10, the supporting upright post 11, the supporting vertical beam 12, the bottom cross beam 13, the bottom longitudinal beam 14 and the inclined support 15 are regularly arranged and connected together to form a supporting frame body, the supporting frame body is specifically provided with two and symmetrically arranged in the arch tunnel, and the combined template 1 passes through the screw rod lifting device 2 and is installed on the opposite surfaces of the two supporting frame bodies.
The supporting frame body is a beam-column system, has enough rigidity, strength and stability, and is connected by using bolts, fasteners, welding and other modes between beams and columns, so that the connection reliability of each node is ensured, the supporting function of the eccentric supporting frame system is firmer and more reliable, and relative displacement can not occur. Oblique supports 15 are connected among the bottom cross beam 13, the supporting side cross beam 7, the supporting middle cross beam 8 and the supporting upright post 11, and oblique supports 15 are connected among the supporting side longitudinal beams 9, the supporting middle longitudinal beams 10, the bottom longitudinal beams 14, the supporting upright posts 11 and the supporting upright beams 12; the two ends of the diagonal brace 15 of the eccentric support frame system are connected with the frame beam and the frame column, the intersection point of the axis of the diagonal brace and the beam axis of the frame system has a section distance with the intersection point of the beam and the column, the energy consumption capacity of the beam section between the two intersection points is fully exerted, and the capacity of the frame system for resisting the vibration influence generated by drilling explosion, construction machinery operation and the like is effectively improved.
The lateral rotation telescopic hydraulic oil cylinder 4 is specifically provided with two rows and three in each row, the lateral rotation telescopic hydraulic oil cylinders 4 are arranged on the side wall of the tunnel, and the working ends of the lateral rotation telescopic hydraulic oil cylinders 4 are connected to the support vertical beam 12.
The working end of the lateral rotation telescopic hydraulic oil cylinder 4 works to drive the angle, height and direction of the combined template 1 to be adjusted. Specifically, the lateral rotation telescopic hydraulic oil cylinders are firmly embedded on the side wall of the tunnel through high-strength bolts and connected with the supporting vertical beam 12 of the eccentric supporting frame system 3, and the installation and the positioning of the eccentric supporting frame system are realized through the telescopic and the rotation of each hydraulic oil cylinder and the matched use of a horizontal hydraulic jack, and the secondary adjustment of the angle, the height, the position and the trend of the whole formwork is conveniently carried out.
The universal moving wheels 5 are installed on the bottom longitudinal beam 14, and each bottom longitudinal beam 14 is specifically provided with three universal moving wheels 5 which are uniformly distributed at equal intervals, so that the whole die carrier can be conveniently moved and installed.
The ventilation duct 6 is mounted above the support center longitudinal beam 10 and is arranged in parallel with the support center longitudinal beam 10.
As shown in fig. 3, when the concrete pump works, the concrete pump and the vibrator are delivered to a designated place through the working window 16, and a plurality of working windows 16 are arranged according to the requirement.
The utility model discloses an implementation as follows:
in a certain ultra-shallow buried, ultra-large section, variable cross section and asymmetric double-arch tunnel, underground excavation and hole entry construction are carried out, the difficulty of construction organization is extremely complex, the geological conditions are complex, multiple system conversion is involved, a composite middle wall is adopted, and the effective width of the curved middle wall is 1.998-3.87 cm; mid-board lining construction is the key point, the utility model discloses mainly to the die carrier's of the crooked mid-board construction of archway tunnel use method as follows:
firstly, preparing various kinds of reinforcements of a curved middle wall before construction, binding the reinforcements of the curved middle wall, and dividing the number and the lap joint positions of the combined templates 1 according to the radian change and the axial section change of the curved middle wall; the combined template 1 is installed together with an eccentric support frame system 3 through a screw rod lifting device 2, a lateral rotary telescopic hydraulic oil cylinder 4 to form a complete movable mould frame;
secondly, the die carrier is moved to a construction working position through the movement of the universal moving wheel 5, then the universal moving wheel is locked to prevent the die carrier from moving, the angle, the height, the position and the direction of the die carrier device are adjusted through the action of a horizontal hydraulic jack and a lateral rotary telescopic hydraulic oil cylinder, and the position and the angle of the template are further adjusted through a lead screw lifting device;
thirdly, pumping and vibrating concrete through the working windows 16 on the sub-templates to complete the pouring of the curved middle wall of the section;
and fourthly, after the curved middle wall reaches the formwork removal standard, completing the formwork removal operation through the action of the lateral rotation telescopic hydraulic oil cylinder 4 and the screw rod lifting device 1.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (6)
1. The utility model provides a die carrier suitable for curved well wall construction usefulness of archy tunnel which characterized in that: the device comprises a combined template (1), a screw rod lifting device (2), an eccentric supporting frame system (3), lateral rotary telescopic hydraulic oil cylinders (4) and universal moving wheels (5), wherein the combined template (1) comprises a plurality of sub-templates which are regularly arranged, the edges of any two adjacent sub-templates are in crossed clamping connection together, the edge cross sections are connected together through pins (17), a working window (16) is arranged at the center of one part of the sub-templates, a plurality of screw rod lifting devices (2) are uniformly arranged and installed on the eccentric supporting frame system (3), the working ends of the screw rod lifting device (2) are connected with the corresponding sub-templates, the upper part of the eccentric supporting frame system (3) is provided with a ventilating duct (6), the fixed ends of the lateral rotary telescopic hydraulic oil cylinders (4) are embedded and fixed on the side hydraulic oil cylinder wall of a tunnel, and the working ends of the lateral rotary telescopic hydraulic oil cylinders (4) are connected with the eccentric supporting frame system (3), the bottom of the eccentric supporting frame system (3) is uniformly provided with a plurality of universal moving wheels (5).
2. The formwork suitable for the construction of the curved middle wall of the multi-arch tunnel according to claim 1, wherein: the eccentric supporting frame system (3) comprises a supporting side cross beam (7), a supporting middle cross beam (8), a supporting side longitudinal beam (9), a supporting middle longitudinal beam (10), a supporting upright post (11), a supporting vertical beam (12), a bottom cross beam (13), a bottom longitudinal beam (14) and an inclined support (15), the supporting side cross beam (7), the supporting middle cross beam (8), the supporting side longitudinal beam (9), the supporting middle longitudinal beam (10), the supporting upright post (11), the supporting vertical beam (12), the bottom cross beam (13), the bottom longitudinal beam (14) and the inclined support (15) are regularly arranged and connected to form a supporting frame body, the supporting frame body is specifically provided with two supporting side beams which are symmetrically arranged in the arch tunnel, and the combined template (1) is installed on two opposite surfaces of the supporting frame body through the screw rod lifting device (2).
3. The formwork suitable for the construction of the curved middle wall of the multi-arch tunnel according to claim 2, wherein: the lateral rotation telescopic hydraulic oil cylinder (4) is specifically provided with two rows and three in each row, the lateral rotation telescopic hydraulic oil cylinders (4) are arranged on the side wall of the tunnel, and the working ends of the lateral rotation telescopic hydraulic oil cylinders (4) are connected to the support vertical beam (12).
4. The formwork suitable for constructing the curved middle wall of the multi-arch tunnel according to claim 3, wherein: the working end of the lateral rotation telescopic hydraulic oil cylinder (4) works to drive the combination template (1) to adjust the angle, height and direction.
5. The formwork suitable for the construction of the curved middle wall of the multi-arch tunnel according to claim 2, wherein: universal removal wheel (5) are installed on bottom longeron (14), every specifically be provided with three on bottom longeron (14) universal removal wheel (5) and equidistant equipartition.
6. The formwork suitable for the construction of the curved middle wall of the multi-arch tunnel according to claim 2, wherein: the ventilation pipeline (6) is installed above the support middle longitudinal beam (10) and is arranged in parallel with the support middle longitudinal beam (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920828243.2U CN210440048U (en) | 2019-06-04 | 2019-06-04 | Die carrier suitable for curved well wall construction of multiple arch tunnel is used |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920828243.2U CN210440048U (en) | 2019-06-04 | 2019-06-04 | Die carrier suitable for curved well wall construction of multiple arch tunnel is used |
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| CN210440048U true CN210440048U (en) | 2020-05-01 |
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| CN201920828243.2U Active CN210440048U (en) | 2019-06-04 | 2019-06-04 | Die carrier suitable for curved well wall construction of multiple arch tunnel is used |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483131A (en) * | 2020-12-07 | 2021-03-12 | 中铁十九局集团第五工程有限公司 | Supporting structure, construction device and construction method of tunnel variable-span cavern |
| WO2024016300A1 (en) * | 2022-07-22 | 2024-01-25 | 中铁上海工程局集团第三工程有限公司 | Mobile scaffolding suitable for construction of variable-cross-section tunnel canopy |
-
2019
- 2019-06-04 CN CN201920828243.2U patent/CN210440048U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483131A (en) * | 2020-12-07 | 2021-03-12 | 中铁十九局集团第五工程有限公司 | Supporting structure, construction device and construction method of tunnel variable-span cavern |
| WO2024016300A1 (en) * | 2022-07-22 | 2024-01-25 | 中铁上海工程局集团第三工程有限公司 | Mobile scaffolding suitable for construction of variable-cross-section tunnel canopy |
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