CN210564557U - Tunnel secondary lining form trolley - Google Patents
Tunnel secondary lining form trolley Download PDFInfo
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- CN210564557U CN210564557U CN201921094272.7U CN201921094272U CN210564557U CN 210564557 U CN210564557 U CN 210564557U CN 201921094272 U CN201921094272 U CN 201921094272U CN 210564557 U CN210564557 U CN 210564557U
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Abstract
The utility model relates to a tunnel tunnelling construction technical field especially relates to a tunnel secondary lining form trolley, including a cope match-plate pattern, two side cope match-plate patterns and two side lower templates, the cope match-plate pattern, mutual independence between side cope match-plate pattern and the side lower template, link to each other through the cope match-plate pattern pneumatic cylinder between cope match-plate pattern and the entablature, link to each other through the side pneumatic cylinder that goes up between the side cope match-plate pattern of two bilateral symmetry and the portal assembly, link to each other through the side hydraulic cylinder down between the side lower template of two bilateral symmetry and the portal assembly, the side lower template is located the horizontal plane with the interface of side cope match-plate pattern, the cope match-plate pattern is the fan-shaped cambered surface of contained angle 75~85, the side lower template is the fan-shaped cambered surface of contained angle 10~ 15. Compared with the prior art, the utility model has the advantages that: the trolley template is divided into 5 areas, a plurality of jacking oil cylinders can be linked or can be moved singly, the plugging force of the template is uniform, and gas accumulation and cavities are avoided.
Description
Technical Field
The utility model relates to a tunnel driving construction technical field especially relates to a tunnel secondary lining form trolley.
Background
The concrete lining bogie is one special apparatus for secondary lining in tunnel construction and is used in lining tunnel wall. The concrete lining trolley is an indispensable nonstandard product for secondary lining in the tunnel construction process and mainly comprises a simple lining trolley, a full-hydraulic automatic walking lining trolley and a net frame type lining trolley. The full hydraulic lining trolley can be divided into a side top arch type, a full-circle needle beam type, a bottom mould needle beam type, a full-circle penetrating type and the like. Lifting slip forms, jacking slip forms, turnover slip forms and the like are also commonly used in hydraulic tunnel and bridge construction.
The trolley is generally designed to be a steel arch frame type, a standard combined steel template is used, automatic walking is not needed, external power dragging is adopted, all vertical template stripping operations are manual operations, and labor intensity is high. The lining trolley is generally used for short tunnel construction, and particularly has more obvious advantages for tunnel concrete lining construction with complex plane and space geometric shapes, frequent procedure conversion and strict process requirements. During use, most of the simple trolley is filled with concrete manually, and the small-opening simple lining trolley is filled with concrete delivery pump trucks, so that the rigidity of the trolley is particularly enhanced. Some simple lining trolleys also adopt an integral steel template, but the demoulding vertical mould still adopts a screw rod jack and does not automatically walk, and the trolleys are generally filled by adopting a concrete conveying pump truck. The simple lining trolley generally adopts a combined steel template which is generally made of a thin plate, and the rigidity of the steel template is considered in the design process, so the truss spacing of the steel arch frame is not suitable to be too large. If the length of the steel template is 1.5m, the space between the steel arch trusses is not more than 0.75m on average, and the longitudinal joint of the steel template is arranged between the trusses so as to be convenient for installing the template fastener and the template hook. If a delivery pump is used for pouring, the pouring speed is not suitable to be too high, otherwise the combined steel template is deformed, and especially when the lining thickness is more than 500mm, the pouring speed is slowed down. The care should be doubled during the top sealing pouring, the pouring condition of the concrete should be noticed at any time, the concrete is prevented from being poured forcibly after being filled, otherwise, the mold is exploded or the trolley is deformed and damaged.
Chinese utility model with patent number 201711378248.1 discloses a tunnel steel form lining trolley, its structure includes: the device comprises a transverse moving mechanism, a portal frame, a horizontal beam, a portal frame inclined strut, a driving travelling mechanism, a supporting jack, a plug template, a portal frame supporting column, a side die screw rod, a jacking oil cylinder, a side die vertical screw rod, an upper cross beam, a reinforcing rod, a top die frame supporting rod, a top die frame, a workbench, a ladder, a guardrail, a driven travelling mechanism, a bottom jack, a portal frame cross beam, a steel rail and a sleeper, wherein the transverse moving mechanism is arranged at the bottom end of the top die frame; the utility model discloses an install sideslip structure, can the alignment of quick adjustment masterplate central line and tunnel lining through central line, the position of having avoided adjusting the platform truck to get into the tunnel many times guarantees that platform truck design central line aligns with tunnel lining through central line for the engineering progress is effectively improved the efficiency of construction.
Disclosure of Invention
The utility model aims at providing a tunnel secondary lining form trolley, overcoming the defects of the prior art, a plurality of jacking oil cylinders can be linked and can also be singly operated, the formwork erection and the formwork removal of a tunnel left side form and a tunnel right side form can be completed by the oil cylinders, and the labor intensity is low; when the trolley is in a pouring state, the oil cylinder is not stressed, the power consumption is low, the walking motor is provided with forward and reverse rotation and overload protection, and the trolley is guaranteed to move in a balanced and safe manner.
In order to achieve the above object, the utility model discloses a following technical scheme realizes:
a tunnel secondary lining template trolley structurally comprises a template assembly, an upper arch frame assembly, a portal frame assembly and a traveling system, wherein the upper arch frame assembly is arranged at the top of the portal frame assembly; go up the bow member assembly and include entablature and indulge the floorbar, be equipped with between entablature and the portal assembly and indulge the floorbar, its characterized in that:
the template assembly comprises a top template, two side upper templates and two side lower templates, wherein the top template, the side upper templates and the side lower templates are independent of each other, the top template is connected with the upper cross beam through a top template hydraulic cylinder, the two side upper templates which are bilaterally symmetrical are connected with the portal assembly through a side upper hydraulic cylinder, the two side lower templates which are bilaterally symmetrical are connected with the portal assembly through a side lower hydraulic cylinder, the interface of the side lower templates and the side upper templates is located on the horizontal plane of the center of the tunnel, the top template is a fan-shaped cambered surface with an included angle of 10-30 degrees, the side upper templates are fan-shaped cambered surfaces with an included angle of 75-85 degrees, and the side lower templates are fan-shaped cambered surfaces with an included angle of 10-15 degrees.
The portal assembly comprises a main beam, portal frames, reinforcing support rods, diagonal support rods and transverse supports, the portal frames are sequentially arranged in parallel along the main beam, the reinforcing support rods, the diagonal support rods and the transverse supports are arranged between at least one pair of adjacent portal frames, chamfer bevel edges are arranged at the left upper corner and the right upper corner of at least one portal frame, the diagonal support rods and the transverse rods used for reinforcing are arranged on the inner sides of the chamfer bevel edges, and a lifting hydraulic cylinder is arranged between the main beam and a walking system.
And a transverse hydraulic cylinder is arranged between the door-shaped frame and the vertical beam.
The running system is in the form of any one of a tyre, a rail or a track.
And a screw rod support rod is arranged near at least one hydraulic cylinder among the top die hydraulic cylinder, the side upper hydraulic cylinder and the side lower hydraulic cylinder to form a stable triangular support.
And a sealing sliding groove is arranged between the top template and the side upper template and is connected to the top template or the side upper template.
The top die plate is provided with a plurality of exhaust pipes, one end of each exhaust pipe corresponds to the highest point in the die cavity of the top die plate, and the other end of each exhaust pipe penetrates through the top die plate and is connected with an exhaust valve below the top die plate.
Compared with the prior art, the beneficial effects of the utility model are that: 1) the whole trolley is controlled in a full hydraulic mode, the whole trolley is divided into 5 areas, and the plurality of jacking oil cylinders can be linked or driven independently, so that the blocking force of the template is more uniform, and mortar is prevented from leaking; 2) the formwork erection and formwork removal of the left formwork and the right formwork of the tunnel are completed by the oil cylinders, the labor intensity is low, the oil cylinders are not stressed when the trolley is in a pouring state, and the electric energy consumption is low; 3) the traveling motor is provided with forward and reverse rotation and overload protection, so that the trolley can move in a balanced and safe manner; 4) a plurality of grouting holes are formed in the top panel of the trolley, and after concrete pouring is finished; secondary grouting can be performed in the first time; also used as an air vent to avoid air accumulation and cavities.
Drawings
Fig. 1 is the utility model relates to a tunnel secondary lining form jumbo embodiment structure schematic diagram.
Fig. 2 is a side view of fig. 1.
3 fig. 3 3 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 of 3 fig. 3 1 3. 3
Fig. 4 is a schematic view of a lateral cavity module of the present invention.
Fig. 5 is a schematic view of the side upper cavity die set of the present invention.
Fig. 6 is a schematic view of the top mold cavity assembly of the present invention.
Fig. 7 is an enlarged view of a part of the sealing chute at I in fig. 4.
In the figure: 1-template assembly, 2-upper arch assembly, 3-portal assembly, 4-traveling system, 5-upper beam, 6-longitudinal vertical beam, 7-transverse hydraulic cylinder, 8-top template, 9-side upper template, 10-side lower template, 11-total beam, 12-portal frame, 13-reinforcing support rod, 14-diagonal support rod, 15-transverse support rod, 16-45-degree chamfer angle, 17-lifting hydraulic cylinder, 18-top template hydraulic cylinder, 19-side upper hydraulic cylinder, 20-side lower hydraulic cylinder, 21-lead screw support rod, 22-inner supporting lead screw support rod, 23-ground anchor, 24-exhaust pipe, 26-working window, 27-grouting device, 28-sealing chute, 29-plug board, 30-box-shaped back ridge, 41-driving mechanism, 42-follower mechanism.
Detailed Description
The following embodiments are further described in the following:
in the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1-6 are schematic structural views of an embodiment of the tunnel secondary lining form trolley of the present invention, the structure of which includes a form assembly 1, an upper arch assembly 2, a portal assembly 3, a walking system 4 and a plurality of hydraulic cylinders, the upper arch assembly 2 is disposed on the top of the portal assembly 3, the walking system 4 is disposed below the portal assembly 3, and the plurality of hydraulic cylinders are distributed between the form assembly 1 and the upper arch assembly 2 or between the form assembly 1 and the portal assembly 3; the upper arch frame assembly 2 comprises an upper beam 5 and a vertical beam 6, and the vertical beam 6 is arranged between the upper beam 5 and the upper arch frame assembly.
The upper arch assembly 2 mainly bears the concrete pressure at the upper part of the top template and the self weight of the template during casting. The upper part of the supporting top template is transferred to the portal assembly 3 through the vertical beam 6. The transverse hydraulic cylinders 7 are respectively arranged on the left and the right in the horizontal direction and used for adjusting the lining center of the template to be consistent with the center of the tunnel, and the translation amount is respectively 100mm on the left and the right, namely the stroke of the horizontal oil cylinder is 200 mm.
The portal assembly 3 comprises a main beam 11, door-shaped frames 12, reinforcing support rods 13, inclined support rods 14 and transverse support rods 15, the door-shaped frames are sequentially arranged in parallel along the main beam 11, the reinforcing support rods 13 are arranged between at least one pair of adjacent door-shaped frames 12, 45-degree chamfers 16 are arranged at the left upper corner and the right upper corner of at least one door-shaped frame 12, the inner sides of the chamfers are provided with the inclined rods and the transverse rods for reinforcement according to the conventional design, and a lifting hydraulic cylinder 17 is arranged between the main beam 11 and the walking system 4. A transverse hydraulic cylinder 7 is arranged between the door-shaped frame 12 and the vertical beam 6. The running system 4 is a rail, and sleepers are arranged below the rail. The foot of the portal frame 12 is provided with an inner supporting lead screw support rod 22, the free end of the inner supporting lead screw support rod 22 is connected with the ground through a ground anchor 23, the reactive force of the template when the concrete is poured can be balanced, and the portal frame is prevented from deforming. The portal frame 12 is a main bearing component of the whole trolley, and the bending resistance and the torsion resistance of the portal frame are important for ensuring the outline size of a lining, so that an I-shaped steel structure and a box beam structure which have high bending strength and relatively light weight are adopted, the portal frame has a compact and rigid structure, and the requirement of supporting a template during concrete pouring is met. In the embodiment 12m, the long door frame assembly is formed by 6 door-shaped frames 12 which are connected through bolts. In the walking state, the inner strut 22 should be retracted.
The template assembly comprises a top template 8, two side upper templates 9 and two side lower templates 10, wherein the top template 8, the side upper templates 9 and the side lower templates 10 are of independent structures, the top template 8 is connected with the upper crossbeam 5 through a top template hydraulic cylinder 18, the two bilateral symmetry side upper templates 9 are connected with the portal assembly through a side upper hydraulic cylinder 19, the two bilateral symmetry side lower templates are connected with the portal assembly through a side lower hydraulic cylinder 20, the interface between the side lower templates 10 and the side upper templates 9 is located on the horizontal plane of the center of the tunnel, the top template is a fan-shaped cambered surface with an included angle of 10-30 degrees, the side upper templates are fan-shaped cambered surfaces with an included angle of 75-85 degrees, and the side lower templates are fan-shaped cambered surfaces with an included angle of 10-15 degrees.
the formwork is provided with working windows 26 arranged in a quincunx shape, and the working windows have the functions of pouring concrete, tamping the concrete, ③ coating release agent, cleaning the surface of the formwork, arranging a grouting device 27 connected with a delivery pump on the top formwork, and arranging box-shaped back ridges 30 welded by buckling groove steel on the back surfaces of the top formwork 8, the side upper formwork 9 and the side lower formwork 10 so as to enhance the integral rigidity of the formwork.
Near top mould pneumatic cylinder 18, the pneumatic cylinder 19 on the side and the pneumatic cylinder 20 under the side all are provided with a lead screw vaulting pole 21, form firm triangular supports, before beginning the pouring, adjust the length of lead screw vaulting pole until can realizing firm supporting role, and the pneumatic cylinder does not receive the force when the pouring, is favorable to reducing power consumption. And a sealing chute 28 between the top template 8 and the side upper template 9 is used for placing an insert plate 29 for compensating gaps in mold closing, and the insert plate can be made of felt paper, steel plates, three-ply plates and the like, so that the sealing property of a cavity is kept and concrete is prevented from leaking.
The top die plate 8 is provided with a plurality of exhaust pipes 24, one end of each exhaust pipe 24 corresponds to the highest point in the die cavity of the top die plate 8, and the other end of each exhaust pipe 24 penetrates through the top die plate and is connected with an exhaust valve below the top die plate.
The traveling system 4 generally includes two driving mechanisms 41 and two driven mechanisms 42, which are respectively installed at two ends of the main beam 11, the driving mechanism 41 is installed at one end of the main beam 11, and the driven mechanism 42 is installed at the other end of the main beam 11. In the driving mechanism, a walking motor drives a speed reducer, the driving wheel drives the whole machine to walk through chain transmission, and a driven wheel follows up.
The utility model relates to a tunnel secondary lining form trolley's staged compound die pouring method, its concrete step is as follows:
the first step is as follows: moving the tunnel secondary lining template trolley to the entrance of the tunnel, and placing the piston end of a lifting hydraulic cylinder 17 on the main beam in place along a pre-laid rail;
the second step is that: starting a lifting hydraulic cylinder 17, lifting the top template 8 until the distance between the lifting hydraulic cylinder and the outer surface of the primary lining body reaches the designed distance, adjusting the transverse hydraulic cylinder 7 to align the center line of the top template with the center line of the tunnel, operating a top template hydraulic cylinder 18, and dropping the top template 8;
the third step: the hydraulic cylinders 20 of the side lower templates at the left side and the right side are operated to enable the side lower templates 10 to reach a designed distance with the outer surface of the primary lining body, a side lower cavity with an opening at the upper end is formed between the side lower templates 10 and the outer surface of the primary lining body, the periphery is sealed by a waterproof lining plate and a wood template with the thickness of 5cm, and slurry leakage during pouring is prevented;
the fourth step: pouring concrete mortar into the cavity of the lateral lower template, wherein the pouring sequence is sequentially carried out from bottom to top, when the mortar rises to the opening at the upper end, the pouring is finished, the vibrator is started for 10-15 seconds, and the first-stage pouring is finished;
the fifth step: operating the hydraulic cylinders 19 of the side upper templates at the left side and the right side to ensure that the side upper templates 9 and the outer surface of the primary lining body reach a designed distance, forming side upper cavities with openings at the upper ends between the side upper templates 9 and the outer surface of the primary lining body and between the side upper templates 9 and the cavities of the side lower templates, and sealing the peripheries by using waterproof lining plates and wood templates with the thickness of 5cm to prevent slurry leakage during pouring;
and a sixth step: pouring concrete mortar into the side upper template cavity, wherein the pouring sequence is sequentially carried out from bottom to top, when the mortar rises to an opening at the upper end, the pouring is finished, the vibrator is started for 15-25 seconds, and the second-stage pouring is finished;
the seventh step: operating a top die hydraulic cylinder 18, lifting a top die plate 8 to enable the top die plate 8 to reach a designed distance with the outer surface of the primary lining body, forming a closed top die cavity between the top die plate 8 and the outer surface of the primary lining body and between the top die plate 8 and a side upper die plate cavity, and sealing the periphery by using a waterproof lining plate and a 5 cm-thick wood die plate to prevent slurry leakage during pouring;
eighth step: and (3) pouring concrete mortar into the top die cavity, closing the exhaust valve when the mortar flows out of the exhaust pipe 24 of the top die cavity, finishing pouring, starting the vibrator for 10-15 seconds, finishing pouring of the third section and finishing pouring work of the station.
After the cavity is formed in the seventh step, see fig. 7, a sealing material 29 should be filled in the sealing chute 28 between the top die plate 8 and the side upper die plate 9 to prevent slurry leakage during pouring.
After the pouring is finished, curing is carried out according to the conventional requirements of concrete until the strength of the poured body reaches more than 80% of the design value, the template can be removed, the trolley is moved to the next station, and the operation is repeated.
The above-mentioned embodiments are only specific examples selected for the purpose of illustrating the objects, technical solutions and advantages of the present invention in detail, but should not limit the scope of the present invention, and all modifications, equivalent substitutions and improvements made without departing from the spirit and principles of the present invention should fall within the scope of the present invention.
Claims (7)
1. A tunnel secondary lining template trolley structurally comprises a template assembly, an upper arch frame assembly, a portal frame assembly and a traveling system, wherein the upper arch frame assembly is arranged at the top of the portal frame assembly; go up the bow member assembly and include entablature and indulge the floorbar, be equipped with between entablature and the portal assembly and indulge the floorbar, its characterized in that:
the template assembly comprises a top template, two side upper templates and two side lower templates, wherein the top template, the side upper templates and the side lower templates are independent of each other, the top template is connected with the upper cross beam through a top template hydraulic cylinder, the two side upper templates which are bilaterally symmetrical are connected with the portal assembly through a side upper hydraulic cylinder, the two side lower templates which are bilaterally symmetrical are connected with the portal assembly through a side lower hydraulic cylinder, the interface of the side lower templates and the side upper templates is located on the horizontal plane of the center of the tunnel, the top template is a fan-shaped cambered surface with an included angle of 10-30 degrees, the side upper templates are fan-shaped cambered surfaces with an included angle of 75-85 degrees, and the side lower templates are fan-shaped cambered surfaces with an included angle of 10-15 degrees.
2. The tunnel secondary lining formwork trolley as claimed in claim 1, wherein the portal assembly comprises a main beam, portal frames, reinforcing support rods, diagonal support rods and transverse supports, the portal frames are sequentially arranged in parallel along the main beam, the reinforcing support rods, the diagonal support rods and the transverse supports are arranged between at least one pair of adjacent portal frames, chamfer bevel edges are arranged at the left upper corner and the right upper corner of at least one portal frame, the diagonal support rods and the transverse support rods for reinforcing are arranged on the inner sides of the chamfer bevel edges, and a lifting hydraulic cylinder is arranged between the main beam and a walking system.
3. The tunnel secondary lining form jumbo as claimed in claim 2, wherein a traverse hydraulic cylinder is provided between the gate frame and the vertical beam.
4. A tunnel secondary lining form trolley according to claim 1 wherein the travelling system is in the form of any one of a tyre, rail or track.
5. The tunnel secondary lining formwork jumbo of claim 1, wherein a screw rod brace is arranged near at least one of the top formwork hydraulic cylinder, the side upper hydraulic cylinder and the side lower hydraulic cylinder to form a stable triangular support.
6. The tunnel secondary lining form trolley as claimed in claim 1, wherein a sealing runner is provided between the top form and the side upper form, the sealing runner being connected to the top form or the side upper form.
7. The tunnel secondary lining form jumbo as claimed in claim 1, wherein a plurality of exhaust pipes are provided on the top form, one end of each exhaust pipe corresponds to the highest point in the cavity of the top form, and the other end of each exhaust pipe passes through the top form and is connected with an exhaust valve below the top form.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921094272.7U CN210564557U (en) | 2019-07-13 | 2019-07-13 | Tunnel secondary lining form trolley |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921094272.7U CN210564557U (en) | 2019-07-13 | 2019-07-13 | Tunnel secondary lining form trolley |
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| CN210564557U true CN210564557U (en) | 2020-05-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273695A (en) * | 2019-07-13 | 2019-09-24 | 中国三冶集团有限公司 | A kind of Tunnel Second Lining formwork jumbo and its stage molding pouring procedure |
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2019
- 2019-07-13 CN CN201921094272.7U patent/CN210564557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273695A (en) * | 2019-07-13 | 2019-09-24 | 中国三冶集团有限公司 | A kind of Tunnel Second Lining formwork jumbo and its stage molding pouring procedure |
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