CN214194642U - Open cut tunnel lining external mold trolley - Google Patents
Open cut tunnel lining external mold trolley Download PDFInfo
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- CN214194642U CN214194642U CN202022438038.0U CN202022438038U CN214194642U CN 214194642 U CN214194642 U CN 214194642U CN 202022438038 U CN202022438038 U CN 202022438038U CN 214194642 U CN214194642 U CN 214194642U
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Abstract
The utility model discloses a cut tunnel lining external mold trolley, which comprises a portal system, a template system and a hanging rack system; the gantry system is provided with a lifting mechanism and a traveling system; the template system comprises a top die and side dies on two sides, and the top die and/or the side dies are of a sectional plate chain structure; the hanging rack system comprises a top die hanging rack fixedly arranged on the portal system and a side die hanging rack connected to the portal system in a sliding mode, and the top die hanging rack and the side die hanging rack are respectively used for fixing the top die and the side die. Through adopting the utility model provides a cut tunnel lining cutting external mold platform truck can effectively solve the template and need dismantle repeatedly and return the factory and modify the difficult problem of cross-sectional dimension.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to an open cut tunnel lining external mold trolley.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In the same open cut tunnel project, when the size of the cross-section lining is changed for multiple times within a short distance, the outer mold trolley needs to be disassembled and returned to a factory for size modification and then assembled again on site by adopting the traditional tool construction method, the project construction speed is seriously influenced, and the construction cost is high. And the repeated modification of the template easily causes large template deformation, poor construction appearance quality and much raw material consumption.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that above-mentioned exists, provide a open cut tunnel lining cutting external mold platform truck, can effectively solve the template and need dismantle repeatedly and return the factory and modify the difficult problem of cross-sectional dimension.
The utility model discloses a cut tunnel lining cutting external mold platform truck, its characterized in that:
the device comprises a gantry system, a template system and a hanging frame system;
the gantry system is provided with a lifting mechanism and a traveling system;
the template system comprises a top die and side dies on two sides, and the top die and/or the side dies are of a sectional plate chain structure;
the hanging rack system comprises a top die hanging rack fixedly arranged on the portal system and a side die hanging rack connected to the portal system in a sliding mode, and the top die hanging rack and the side die hanging rack are respectively used for fixing the top die and the side die.
Furthermore, the open cut tunnel lining external mold trolley is suitable for pouring of linings with various thicknesses, the top mold hanging rack can lift along with the portal system, and the side mold hanging rack can move outwards along the transverse direction on the portal system.
Further, after the top die and the side die move upwards and outwards respectively, a temporary template matched with a gap between the top die and the side die is connected between the top die and the side die.
Furthermore, the side mold hanging rack is in sliding connection with the gantry system through a traverse trolley arranged on the gantry system and a guide rail matched with the traverse trolley.
Furthermore, the side mould stores pylon is equipped with climbing mechanism, including setting up immediately jacking cylinder on the sideslip dolly and be used for connecting jacking cylinder with the connecting piece of side mould stores pylon.
Further, the side mould is a segmental plate chain structure and comprises a plurality of curved templates which are hinged in sequence.
Furthermore, the side molds are hinged to the side mold hanging rack, and the curved templates are hinged to the door frame system through telescopic rods.
Furthermore, a plurality of sets of top dies and side dies are arranged along the longitudinal direction of the external die trolley, and at least one end of the template system is connected with an overlapping template.
Further, a plurality of vibrators are arranged on the top die and the side die.
Furthermore, a cutting groove is formed in the top die.
Through comprehensively adopting the technical scheme, the utility model discloses can gain following beneficial effect:
1. various cross section structures can be constructed, the adjusting speed of the cross section is high, the cross section can be adjusted at any time according to requirements, the replacement cost of the template is low, and the construction is safe and efficient;
2. the difficult problem that the template needs to be repeatedly disassembled and returned to a factory to modify the section size is effectively solved, the influence on site construction is small, the template does not need to be modified, and the quality is stable;
3. the trolley investment can be reduced, the cost is saved, the operation is convenient, the safety coefficient is high, and the working efficiency is high.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic overall structure diagram of an open cut tunnel lining external mold trolley in some embodiments;
FIG. 2 is a schematic diagram of the overall construction of the template system in some embodiments;
FIG. 3 is a schematic diagram of the structure of a temporary template in some embodiments;
FIG. 4 is a schematic view of the overall configuration of the gantry system and the pylon system in some embodiments.
Description of reference numerals:
11-gantry upright post, 12-gantry beam, 13-gantry support rod, 14-telescopic rod, 21-top die, 22-side die, 23-temporary template, 31-top die hanger and 32-side die hanger.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-4, the utility model discloses an open cut tunnel lining cutting external mold platform truck, hereinafter can be referred to as external mold platform truck for short, it includes portal system, template system and stores pylon system. The gantry system is equipped with a lifting mechanism and a traveling system. The die plate system includes a top die 21 and side dies 22 on both sides of the top die 21. The hanger system comprises a top mold hanger 31 and a side mold hanger 32 both arranged on the gantry system for fixing the top mold 21 and the side mold 22, respectively. The top mold hanger 31 is fixedly attached to the gantry system and the side mold hanger 32 is slidably attached to the gantry system.
In some embodiments, the gantry system consists essentially of 6 external gantry gantries, spaced 2.2m apart, with two beams per gantry. In some embodiments, the whole walking system is driven by an electric speed reducer, the electric speed reducer comprises two driving wheel trains and two driven wheel trains, the driving power is 22KW, the walking track adopts a 43kg/m track, and the track is arranged above the tunnel inverted arch filling layer.
In some embodiments, the entire formwork system includes several sets of top and side forms 21, 22 arranged longitudinally along the outer formwork trolley. In some embodiments, at least one end of the formwork system is connected with a lap formwork for overlapping of two work stations. In at least one embodiment, the top mold 21 and the side mold 22 are made of 10mm steel templates, the external mold trolley is 12m long in whole and consists of 8 circles of 1.5m steel templates (including the top mold 21 and the side mold 22) and a circle of 0.1m lap joint templates, the steel templates are additionally provided with pouring work windows, and each layer is 4 and is arranged in a staggered mode. In some embodiments, a plurality of vibrators are disposed on the steel form for tamping the poured concrete. In at least one embodiment, attached vibrators are arranged 2m apart longitudinally across the steel form (i.e., a 2m x 2m grid pattern) to vibrate the masonry-poured concrete. In some embodiments, the external form trolley is also equipped with chain blocks for suspending the lined rebar structure. In some embodiments, the top mold 21 is further provided with a cutting groove for exhausting air in the mold space during casting.
In some embodiments, the side mold hangers 32 are slidably connected to the gantry system by a trolley mounted on the gantry system and rails adapted to the trolley. The top die 21 is fixedly connected with a top die hanging rack 31, the side die 22 is hinged with a side die hanging rack 32, and the top die 21 and/or the side die 22 are of a segmented plate link chain structure. In some embodiments, the top mold 21 is a single-section curved mold, and the side mold 22 is a segmented plate link structure formed by several sections of curved mold hinged in sequence. In other embodiments, the top mold 21 is also of a segmented plate link structure. In at least one embodiment, each curved template is hinged to the gantry system through a telescopic rod 14, the telescopic rod 14 can be a lead screw, a hydraulic oil cylinder, a jack seat and the like, and the spatial position of each curved template can be adjusted through the extension and contraction of the telescopic rod 14. By adopting one or more of the above-mentioned settings, the top mold hanger 31 can be lifted along with the gantry system, and the side mold hanger 32 can be moved transversely on the gantry system, so that the external mold trolley can be suitable for pouring of liners of various thicknesses. After the top die 21 and the side die 22 move upward and outward, respectively, a gap is formed between the top die 21 and the side die 22, and a temporary template 23 adapted to the gap can be additionally provided at the gap.
In some embodiments, the side mold hangers 32 are also equipped with jacking mechanisms including jacking cylinders standing on the trolley and connectors for connecting the jacking cylinders to the side mold hangers 32. In at least one embodiment, the side hanger 32 comprises a side hanger cross member and a side hanger longitudinal member, and the jacking cylinder is connected with the side hanger longitudinal member through a connecting member.
At least one exemplary embodiment is now provided in connection with the drawings, a detailed description of which is provided in the drawings not intended to limit the scope of the claimed invention, but is merely representative of exemplary embodiments provided in the invention.
Exemplary embodiment 1
Referring to fig. 1-4, the present exemplary embodiment relates specifically to an open cut tunnel lining external mold trolley, which may be referred to as an external mold trolley hereinafter, which includes a gantry system, a template system, and a hanger system. The gantry system is equipped with a lifting mechanism and a traveling system. The template system is connected to the gantry system through the hanging frame system, the hanging frame system is connected to the gantry system in a sliding mode and adopts an electro-hydraulic component as a driving device, and the electro-hydraulic component is connected with the controller.
The portal system comprises two groups of portal longitudinal beams, two groups of portal upright posts 11 which are respectively vertically arranged on the two groups of portal longitudinal beams, and portal cross beams 12 of which the two ends are respectively connected to the top ends of the two groups of portal upright posts 11. The longitudinal door longitudinal beams are arranged along the advancing direction of the outer mold trolley, and the upright post 11 of the door frame and the cross beam 12 of the door frame are arranged in parallel along the advancing direction of the outer mold trolley. The gantry longitudinal beam is connected with the traveling system and the lifting mechanism, and the traveling system and the lifting mechanism are further connected with the electric hydraulic component. The portal upright columns 11 and the portal cross beams 12 are all in a truss sheet form, the splicing mode can reduce the using amount of bolts, labor cost and working hours are reduced, the problems of mistakes and omissions and the like are not prone to occurring in delivery and acceptance check, and meanwhile the stability of the whole portal is guaranteed. The gantry upright 11 comprises a plurality of vertically arranged gantry upright truss singlets, and the gantry beam 12 comprises horizontally arranged gantry beam truss singlets. An inclined support rod and a gantry connecting beam are respectively arranged between a plurality of gantry upright column truss single pieces and between a plurality of gantry cross beam truss single pieces which are arranged in parallel along the advancing direction of the external mold trolley, and the inclined support rod and the gantry connecting beam are mainly designed to enhance the overall rigidity of the gantry system. The gantry beam 12 is provided with a guide rail and a traversing trolley for making the hanging rack system and the gantry system form a sliding connection. The portal system further comprises a portal support rod 13 of which the upper end is connected with the portal beam truss single piece and the lower end is connected with the portal upright post truss single piece, and the portal support rod 13 can be welded on the portal upright post truss single piece as a whole in practical application.
The template system comprises a top die 21 and side dies 22 symmetrically arranged on two sides of the top die 21, the two side dies 22 can be respectively called a left side die and a right side die, the left side die, the top die 21 and the right side die are sequentially arranged to form an outer contour structure for lining the open cut tunnel, and the left side die and the right side die are respectively connected to a portal upright truss single piece through telescopic rods 14 such as hydraulic oil cylinders. The left side die and the right side die can be of a sectional plate chain structure and are formed by a plurality of curved templates which are sequentially hinged, and the overall bending shape of the plate chain can be adjusted through the telescopic rods 14. The top mold 21 may also be a curved mold plate, or a segmented plate link structure. Portal system and auxiliary component thereof, like portal tie-beam, portal bracing piece etc to and all weld the otic placode on left side mould, the right side mould, welding quantity and position can be adjusted according to the actual demand, and the jack seat of welded otic placode mainly used joint support template system, the design of jack seat helps guaranteeing the intensity demand when template system satisfies concreting. The template system is also provided with a working window, so that pouring and observation are facilitated, and a pouring opening is not required to be specially arranged additionally. Because the pouring space formed by the inner mold trolley and the outer mold trolley is a relatively closed environment, the problem of exhaust is also considered, and the problem of obvious air holes in construction is prevented. Thus, a groove is cut in the top of the top die 21 for air venting and top casting. And after the top pouring is finished, the opening is strickled off so as to prevent the top concrete from being irregular in shape after the forming.
The hanging rack system comprises a plurality of top mould hanging racks 31 and a plurality of side mould hanging racks 32 which are arranged in parallel along the advancing direction of the external mould trolley, the top mould hanging racks 31 are respectively and fixedly connected with the door frame cross beam 12 and the top mould 21, the side mould hanging racks 32 are in sliding connection with the door frame cross beam 12 and hinged with the side moulds 22, and the side mould hanging racks 32 are in sliding connection with the door frame cross beam 12 through a transverse moving trolley arranged on the door frame cross beam 12 and a guide rail matched with the transverse moving trolley. Top mould stores pylon 31 and side form stores pylon 32 all are in order to realize hanging the template system as essential function, and concrete structure can have multiple embodiment, if set up stores pylon crossbeam and stores pylon longeron etc. the stores pylon crossbeam can be rod-type structure, also can be structures such as triangle-shaped, T shape, can also be other special-shaped structures, design according to actual demand can. Taking the side mold hanger as an example for explanation, the side mold hanger 32 includes a side mold hanger cross member and a side mold hanger longitudinal member having an upper end connected to the side mold hanger cross member and a lower end connected to the formwork system. Between many side form stores pylon crossbeams in the adjacent different side form stores pylon 32 in front and back, between many side form stores pylon longerons, between side form stores pylon crossbeam and the side form stores pylon longeron to and between the side form stores pylon crossbeam of same side form stores pylon 32 and the side form stores pylon longeron, all can design the reinforcement part according to actual demand, if adopt vertical or slant bracing piece etc. that set up, can effectively improve side form stores pylon 32's overall stability.
The side mould hanging rack 32 is also provided with a jacking mechanism, when the mould is disassembled, the side mould 21 can be lifted by the jacking mechanism, and then the side mould hanging rack 32 is transversely moved, so that the separation of the side mould 21 and the lining concrete is realized. The jacking mechanism comprises a jacking oil cylinder, the jacking oil cylinder is vertically arranged on the transverse trolley and is connected with the side mould hanging rack longitudinal beam through an oil cylinder connecting piece and the like. When the device is implemented, the transverse trolley can be installed on a guide rail on the lower end face of a single piece of a portal beam truss in a matched mode, then the jacking oil cylinder is placed on the transverse trolley and connected and fixed with the transverse trolley through bolts, the other end of the jacking oil cylinder is connected with the side mold hanging rack longitudinal beam through oil cylinder connecting pieces, channel steel seats and other connecting pieces, and the channel steel seats are connected to corresponding positions of the jacking oil cylinder in an assembled mode. Through fusing climbing mechanism and side form stores pylon into a whole, can make whole climbing mechanism more reliable and stable, reach and drive the purpose that side form stores pylon 32 reciprocated jointly through jacking cylinder. The side mould hanging rack 32 is symmetrically provided with two pairs on the portal beam 12, correspondingly, the jacking mechanisms are also symmetrically provided with two pairs respectively, a hydraulic oil cylinder is arranged between the two pairs of jacking mechanisms, and the two pairs of side mould hanging racks 32 can be driven to transversely move through the extension and contraction of the hydraulic oil cylinder, so that the purposes of adjusting a template system and adapting to the variable cross-section size of open cut tunnel lining are achieved. Or two pairs of jacking mechanisms can be respectively provided with a hydraulic oil cylinder, the hydraulic oil cylinder is arranged between the jacking mechanisms and the portal cross beam 12, and the hydraulic oil cylinder takes the portal cross beam 12 as a support and can stretch and contract to drive the side mold hanging rack to move transversely. All the electric hydraulic parts can be configured as a whole set, are connected with the controller and are controlled by the controller in a unified way, and the equipped hydraulic pump station is a 10-connection valve.
When the method is implemented, the external mold trolley and the internal mold trolley are used in a matched mode, and the specific implementation method comprises the following steps:
step S1
After the lining reinforcing steel bars are bound on a reinforcing steel bar trolley, operating a chain block to suspend the lining reinforcing steel bars, completing inner mould positioning through an inner mould trolley, completing walking and positioning through a walking system of an outer mould trolley and walking rails fixed on platforms on two sides of a tunnel, then completing outer mould positioning, then manually adopting a wooden end mould to perform end mould closing, performing concrete pouring from working windows of a top mould 21 and a side mould 22 of the outer mould through an overhead pump, and vibrating by adopting an attached vibrator after pouring is completed;
step S2
After the lining of the current station is finished, the inner mold trolley firstly carries out demolding treatment, and after demolding, the inner mold trolley travels to the next station through the traveling device of the inner mold trolley, and then the outer mold trolley is removed. The demoulding process of the external mould trolley is as follows: the left side mould and the right side mould are firstly pulled outwards to be separated from the concrete by adjusting the hydraulic oil cylinder, then the jacking oil cylinder is started to jack upwards, and the side mould hanging rack 31 and the side mould 21 are pulled upwards to be further separated from the concrete. And in the demoulding state, the outer mould trolley travels to the position corresponding to the inner mould trolley on the next station and stands the mould. The working process of the vertical mold is opposite to that of demolding, the jacking oil cylinder is firstly withdrawn for up-and-down adjustment, then the hydraulic oil cylinder is adjusted for left-and-right adjustment, the jacking oil cylinder and the hydraulic oil cylinder can be repeatedly adjusted in the period until the vertical mold meets the requirements, and then lining pouring is carried out.
In order to meet the requirement of rapid variable cross section and relate to the unchanged size in the tunnel, the thickness of the lining is only changed, a movable and detachable temporary template 23 is arranged at the top of the external mold trolley, and various temporary templates 23 are matched according to lining interfaces with different thicknesses. When the section is enlarged, the side die 22 of the outer die moves towards two sides in the transverse direction, the top die 21 is lifted upwards, a gap is formed between the top die 21 and the side die 22, a matched temporary template 23 is added at the gap, and other auxiliary components are used for fixing; when the section becomes smaller, the previously fixed temporary mold plate 23 is removed, and the positions of the side mold 22 and the top mold 21 are restored.
The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. The utility model provides an open cut tunnel lining external mold platform truck which characterized in that:
the device comprises a gantry system, a template system and a hanging frame system;
the gantry system is provided with a lifting mechanism and a traveling system;
the template system comprises a top die and side dies on two sides, and the top die and/or the side dies are of a sectional plate chain structure; the hanging rack system comprises a top die hanging rack fixedly arranged on the portal system and a side die hanging rack connected to the portal system in a sliding mode, and the top die hanging rack and the side die hanging rack are respectively used for fixing the top die and the side die.
2. The open cut tunnel lining external mold trolley according to claim 1, characterized in that: the top die hanging frame is suitable for pouring of linings with various thicknesses, the top die hanging frame can lift along with the portal system, and the side die hanging frame can move outwards along the transverse direction on the portal system.
3. The open cut tunnel lining external mold trolley according to claim 2, characterized in that: after the top die and the side die move upwards and outwards respectively, a temporary template matched with a gap between the top die and the side die is connected between the top die and the side die.
4. The open cut tunnel lining external mold trolley according to claim 1, characterized in that: the side mold hanging rack is in sliding connection with the portal system through a traversing trolley arranged on the portal system and a guide rail matched with the traversing trolley.
5. The open cut tunnel lining external mold trolley according to claim 4, wherein: the side mold hanging rack is provided with a jacking mechanism which comprises a jacking oil cylinder vertically arranged on the traverse trolley and a connecting piece used for connecting the jacking oil cylinder with the side mold hanging rack.
6. The open cut tunnel lining external mold trolley according to claim 1, characterized in that: the side mould is a segmental plate link chain structure and comprises a plurality of curved templates which are sequentially hinged.
7. The open cut tunnel lining external mold trolley according to claim 6, wherein: the side forms are hinged to the side form hanging frames, and the curved templates are hinged to the door frame system through telescopic rods.
8. Open cut tunnel lining external mold trolley according to any one of claims 1 to 7, characterized in that: the top die and the side die are longitudinally provided with a plurality of sleeves along the external die trolley, and at least one end of the template system is connected with a lap joint template.
9. Open cut tunnel lining external mold trolley according to any one of claims 1 to 7, characterized in that: and a plurality of vibrators are arranged on the top die and the side die.
10. Open cut tunnel lining external mold trolley according to any one of claims 1 to 7, characterized in that: and a cutting groove is formed on the top die.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022438038.0U CN214194642U (en) | 2020-10-28 | 2020-10-28 | Open cut tunnel lining external mold trolley |
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| CN202022438038.0U CN214194642U (en) | 2020-10-28 | 2020-10-28 | Open cut tunnel lining external mold trolley |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177046A (en) * | 2020-10-28 | 2021-01-05 | 中铁八局集团第七工程有限公司 | Open cut tunnel lining external mold trolley |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177046A (en) * | 2020-10-28 | 2021-01-05 | 中铁八局集团第七工程有限公司 | Open cut tunnel lining external mold trolley |
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