A tunnel small-section chamber hydraulic lining trolley

Abstract

The utility model belongs to tunnel construction equipment technical field, concretely is a kind of tunnel small section cavern hydraulic lining trolley, including portal assembly, formwork system, hydraulic connection system and running system, the formwork system is arranged outside the portal assembly, the hydraulic connection system is arranged between the formwork system and the portal assembly, can control the formwork system outward expansion or inward folding, the running system is arranged at the bottom of the portal assembly, for the running of trolley.The utility model possesses formwork folding and integral walking function, realizes trolley in different cavern without completely disassembling formwork can quickly change scene construction, solves the existing technology's tunnel small section cavern secondary lining construction existing formwork disassembly complicated, low efficiency, big security risk, concrete appearance quality problem such as poor.

Description

TECHNICAL FIELD

[0001] The utility model relates to tunnel construction equipment technical field, specifically, the utility model relates to a kind of tunnel small section cavern hydraulic lining trolley. BACKGROUND

[0002] With the deepening of national infrastructure construction, especially in the complex terrain of western and northern deep ditch dangerous area, high-grade highway and long tunnel engineering is increasing. In tunnel engineering construction, the secondary lining construction of small section cavern (such as cross passage) faces special challenges. Limited by narrow working space, the existing technology generally uses wooden formwork for construction. The specific operation is: after the current cavern is completed concrete pouring and reaches a certain strength, the wooden formwork needs to be completely removed and transported to the next cavern position for reassembly. This construction method has significant drawbacks: 1. Low efficiency: the formwork disassembly process is tedious and time-consuming, which seriously slows down the construction progress.

[0003] 2. High cost: repeated manual disassembly, transportation consumes a lot of manpower and material resources.

[0004] 3. Great safety hazard: high-altitude formwork disassembly operation is high-risk, and accidents such as personnel falling and object striking are prone to occur.

[0005] 4. Quality is difficult to control: wooden formwork has many joints and is difficult to control, which can easily lead to concrete surface misalignment, grout leakage and poor appearance quality.

[0006] Therefore, it is urgent to develop a special lining trolley suitable for tunnel small section cavern, which can effectively reduce formwork disassembly, improve construction efficiency and safety, and ensure lining quality. UTILITY MODEL CONTENTS

[0007] Therefore, the utility model provides a kind of tunnel small section cavern hydraulic lining trolley, it is suitable for tunnel small section cavern (such as car cross hole, cross hole, drainage culvert tunnel etc.) secondary lining construction, has formwork folding and whole walking function, aims at realizing that same trolley can be quickly transferred without formwork completely disassembled between different caverns, so as to solve or at least alleviate the problems of formwork disassembly, low efficiency, great safety hazard and poor concrete appearance quality in the secondary lining construction of tunnel small section cavern in the prior art.

[0008] In order to achieve the foregoing object, the utility model provides a kind of tunnel small section cavern hydraulic lining trolley, including portal assembly, formwork system, hydraulic connection system and walking system, the formwork system is arranged outside the portal assembly, the hydraulic connection system is arranged between the formwork system and the portal assembly, can control the formwork system outward expansion or inward folding, the walking system is arranged at the bottom of the portal assembly, for the walking of trolley.

[0009] The portal assembly comprises two pairs of spaced-apart main portal frames and a plurality of small portal frames arranged on the top of the main portal frames, the two pairs of main portal frames are connected by main longitudinal beams, and the main portal frames are arranged to be adjustable in height. The formwork system is arranged outside the portal assembly and comprises a top formwork, a left side formwork, a right side formwork, a left turnover formwork and a right turnover formwork, the top formwork is fixed on the small portal frames, the left side formwork and the right side formwork are respectively hinged on the two sides of the bottom of the top formwork, and the left turnover formwork and the right turnover formwork are respectively hinged on the lower edges of the left side formwork and the right side formwork. The hydraulic connection system is arranged between the formwork system and the portal assembly and can control the outward expansion or inward folding of the formwork system, the hydraulic connection system comprises a jacking oil cylinder, a positioning oil cylinder and a translation oil cylinder, the jacking oil cylinder is arranged in the main upright column, the positioning oil cylinder connects the left side formwork and the right side formwork with the auxiliary transverse beams, and the translation oil cylinder is arranged in the translation support at the bottom of the main portal frame.

[0010] The walking system is arranged at the bottom of the portal assembly and is used for the walking of the trolley, the walking system comprises a track, a driving walking wheel and a driven walking wheel, the driving walking wheel and the driven walking wheel are respectively arranged at the front and rear ends of the main portal frame, and the track is laid on the ground of the site.

[0011] Preferably, a plurality of auxiliary transverse beams are arranged below the main longitudinal beams, the plurality of auxiliary transverse beams are distributed in one-to-one correspondence with the plurality of small portal frames, and the small portal frames are arranged above the auxiliary transverse beams.

[0012] Preferably, the main portal frame comprises two main upright columns and a main transverse beam connected between the top ends of the two main upright columns, the two main longitudinal beams are connected with the main transverse beam, and an angle plate is arranged at the connection position of the main longitudinal beam and the main transverse beam.

[0013] Preferably, a lifting column is arranged in the main upright column.

[0014] Preferably, the hydraulic connection system comprises a supporting lead screw, a positioning lead screw and a top supporting lead screw, the supporting lead screw hingedly connects the left side formwork, the right side formwork and the small portal frames, the bottom of the inner side surface of the left turnover formwork and the right turnover formwork is respectively provided with a hinged plate, the positioning lead screw hingedly connects the two hinged plates with the left side formwork and the right side formwork respectively, and the two ends of the top supporting lead screw are respectively connected with the left turnover formwork and the right turnover formwork.

[0015] Compared with the prior art, the utility model at least has the following beneficial effects: 1. High efficiency of transition, reduce disassembly: after a chamber lining is completed, the left side formwork, the right side formwork, the left turnover formwork and the right turnover formwork can be folded inward by retracting the positioning oil cylinder and the lifting column, and the top formwork is lowered. The overall height and width of the trolley are greatly reduced, so that the trolley can directly enter the next cycle construction through the narrow section without disassembling the main formwork components. After reaching the position, the formwork system is unfolded to expand the formwork system and accurately position it. This greatly reduces the workload of disassembling, transporting and assembling the formwork by workers in high altitude and high strength, reduces the risk of safety accidents (such as falling and injury), and significantly shortens the process interval time and improves the overall construction efficiency.

[0016] 2. Improve safety: reduce high-altitude, high-strength manual disassembly and assembly of formwork, reduce labor intensity of workers and risk of safety accidents (such as falling and injury).

[0017] 3. Improve lining quality: the steel formwork has good integrity and large rigidity, the hydraulic connection system and gantry assembly have good stability, effectively reducing deformation and misalignment during pouring, ensuring the size accuracy of the lining, and significantly improving the flatness and appearance quality of the concrete surface.

[0018] 4. Reduce comprehensive cost: although the initial investment of the equipment is high, it can be reused in multiple chambers, and a large amount of manual disassembly and assembly cost and construction period cost is saved, greatly reducing the comprehensive construction cost of the secondary lining of the small section chamber.

[0019] 5. Strong adaptability: the main gantry can adjust the support height through the lifting column, and the walking system ensures flexible movement, so that the trolley can adapt to the construction of small section chambers of different sizes within a certain range. BRIEF DESCRIPTION OF DRAWINGS

[0020] The disclosure of the present application will be more apparent with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the present application. In the drawings: Fig. 1 It is the front view (working state) of the tunnel small section chamber hydraulic lining trolley of the present embodiment; Fig. 2 It is the side view (working state) of the tunnel small section chamber hydraulic lining trolley of the present embodiment; Fig. 3 It is a state diagram of the formwork system folding of the tunnel small section chamber hydraulic lining trolley of the present embodiment.

[0021] Attached reference numerals: 1: Gantry assembly; 2: Main crossbeam; 3: Main column; 4: Small gantry; 5: Main longitudinal beam; 6: Secondary crossbeam; 7: Top formwork; 8: Left side formwork; 9: Right side formwork; 10: Left flip formwork; 11: Right flip formwork; 12: Support screw; 13: Positioning cylinder; 14: Positioning screw; 15: Top support screw; 16: Lifting cylinder; 17: Lifting column; 18: Translation support; 19: Driven wheel; 20: Driven wheel; 21: Track; 22: Translation cylinder; 23: Triangular stop; 24: Hinge plate. Detailed Implementation

[0022] like Figs. 1 to 3 As shown, this embodiment provides a hydraulic lining trolley for small-section tunnel chambers, including a gantry assembly 1, a template system, a hydraulic connection system, and a traveling system. The template system is located outside the gantry assembly 1, and the hydraulic connection system is located between the template system and the gantry assembly 1, which can control the template system to expand outward or retract inward. The traveling system is located at the bottom of the gantry assembly 1 and is used for the movement of the trolley.

[0023] Optionally, the gantry assembly 1 includes two main gantry frames spaced apart and multiple smaller gantry frames 4 mounted on top of the main gantry frames. The two main gantry frames are connected by a main longitudinal beam 5, and the main gantry frames are configured to have an adjustable height.

[0024] Optionally, multiple secondary crossbeams 6 are provided below the main longitudinal beam 5, and the multiple secondary crossbeams 6 are distributed one-to-one with multiple small gantry frames 4, with the small gantry frames 4 located above the secondary crossbeams 6.

[0025] Optionally, the main gantry includes two main columns 3 and a main crossbeam 2 connected between the tops of the two main columns 3. Two main longitudinal beams 5 are connected to the main crossbeam 2, and corner plates 23 are provided at the connection between the main longitudinal beams 5 and the main crossbeam 2. Specifically, the connection between the main longitudinal beams 5 and the main crossbeam 2 is L-shaped, and the corner plate 23 has a triangular structure. The corner plate 23 can optimize the stress structure and provide space for the formwork system to retract. Lifting columns 17 are provided inside the main columns 3.

[0026] Optionally, the template system includes a top template 7, a left template 8, a right template 9, a left-flipping template 10, and a right-flipping template 11. The top template 7 is fixed on the small gantry 4. The left template 8 and the right template 9 are respectively hinged to the two sides of the bottom of the top template 7. The left-flipping template 10 and the right-flipping template 11 are respectively hinged to the lower edges of the left template 8 and the right template 9.

[0027] Optionally, the hydraulic connection system comprises the lifting oil cylinder 16, the positioning oil cylinder 13 and the translation oil cylinder 22. The lifting oil cylinder 16 is arranged in the main stand 3 and can drive the lifting column 17 to move up and down to adjust the height of the gantry assembly 1 and the formwork system. The positioning oil cylinder 13 connects the left formwork 8 and the right formwork 9 with the auxiliary cross beam 6 and can control the formwork to expand or contract to adapt to the cross section width. The translation oil cylinder 22 is arranged in the translation support 18 at the bottom of the main gantry to realize the lateral positioning of the formwork system.

[0028] Optionally, the hydraulic connection system comprises the supporting screw rod 12, the positioning screw rod 14 and the supporting screw rod 15. The supporting screw rod 12 connects the left formwork 8 and the right formwork 9 with the small gantry 4. The bottom of the inner side surface of the left turnover formwork 10 and the right turnover formwork 11 is provided with a hinged plate 24. The positioning screw rod 14 connects the two hinged plates 24 with the left formwork 8 and the right formwork 9 respectively. The two ends of the supporting screw rod 15 are connected with the left turnover formwork 10 and the right turnover formwork 11 respectively. By arranging the supporting screw rod 12, the positioning screw rod 14 and the supporting screw rod 15, a stable force system can be formed and the space for pouring operation can be provided.

[0029] Optionally, the walking system comprises the track 21, the driving walking wheel 19 and the driven walking wheel 20. The driving walking wheel 19 and the driven walking wheel 20 are arranged at the front and rear ends of the main gantry respectively. The track 21 is laid on the ground of the site.

[0030] After the lining of a chamber is completed, the positioning oil cylinder 13 and the lifting column 17 are retracted, so that the left formwork 8, the right formwork 9, the left turnover formwork 10 and the right turnover formwork 11 can be folded inward, and the top formwork 7 is lowered, so that the overall height and width of the trolley are greatly reduced, thereby the trolley can pass through a narrow cross section directly and enter the next cycle of construction without disassembling the main formwork components. After reaching the position, the formwork system is unfolded by using the hydraulic connection system, so that the formwork system is expanded and accurately positioned.

[0031] The working process of the tunnel small cross section chamber hydraulic lining trolley of the embodiment is further described in detail as follows: Installation of the gantry assembly 1: The track 21 is laid on the ground at the designed interval. The walking system and the translation support 18 are installed. Two main gantries are hoisted to the translation support 18 and fixed. The main longitudinal beam 5 is connected to stabilize the main structure. The auxiliary cross beam 6 and the small gantry 4 are installed in sequence.

[0032] 2. Installation and connection of the formwork system: The top template 7 is fixed on the small door frame 4; the left side template 8 and the right side template 9 are respectively hinged on both sides of the top template 7; the left turnover template 10 and the right turnover template 11 are respectively hinged on the lower edges of the left side template 8 and the right side template 9; the positioning oil cylinder 13 is installed between the left side template 8 and the cross beam and between the right side template 9 and the cross beam; the top supporting lead screw 15 is connected between the left turnover template 10 and the right turnover template 11, and specifically, the two ends of the top supporting lead screw 15 can be connected on the hinged seats on both sides; the supporting lead screw 12 and the positioning lead screw 14 are additionally installed to enhance the stability.

[0033] 3. Working process (lining a chamber): Positioning: the trolley is pulled along the track 21 to the target working position; Lifting adjustment: the jacking oil cylinder 16 is started to lift the template system to the designed height; Template unfolding: the positioning oil cylinder 13 is extended to unfold the left side template 8 and the right side template 9, and the supporting lead screw 12, the positioning lead screw 14 and the top supporting lead screw 15 are adjusted to lock the position of the template; Concrete pouring: the secondary lining concrete pouring operation of the small cross-section chamber is carried out.

[0034] Maintenance: after the concrete reaches the specified strength, the next process is entered.

[0035] 4. Transfer process (moving to the next chamber): Template folding: the top supporting lead screw 15 is adjusted to make the left turnover template 10 and the right turnover template 11 fold inward; the positioning oil cylinder 13 is retracted to make the left side template 8 and the right side template 9 fold towards the center line of the trolley; Height lowering: the jacking oil cylinder 16 is operated to make the lifting column 17 retract, thereby lowering the overall height; Shifting: the trolley is pulled to pass through the main tunnel to the next chamber; Resetting: the step 3 is repeated to unfold the template to carry out the construction of the new working position.

[0036] The technical range of the utility model is not limited to the content in the above description, and the above embodiment can be variously deformed and modified by the person skilled in the art without departing from the technical thought of the utility model, and these deformations and modifications should all belong to the range of the utility model.

Claims

1. A hydraulic lining trolley for small-section tunnel chambers, characterized in that, It includes a gantry assembly (1), a template system, a hydraulic connection system and a traveling system. The template system is located outside the gantry assembly (1). The hydraulic connection system is located between the template system and the gantry assembly (1) and can control the template system to expand outward or retract inward. The traveling system is located at the bottom of the gantry assembly (1) and is used for the movement of the trolley. The gantry assembly (1) includes two main gantry frames spaced apart and multiple smaller gantry frames (4) mounted on top of the main gantry frames. The two main gantry frames are connected by a main longitudinal beam (5). The main gantry frames are configured to be height-adjustable. The template system is set outside the gantry assembly (1) and includes a top template (7), a left template (8), a right template (9), a left flip template (10), and a right flip template (11). The top template (7) is fixed on the small gantry (4). The left template (8) and the right template (9) are respectively hinged to the two sides of the bottom of the top template (7). The left flip template (10) and the right flip template (11) are respectively hinged to the lower edges of the left template (8) and the right template (9). The main gantry includes two main columns (3) and a main crossbeam (2) connected between the tops of the two main columns (3), and the two main longitudinal beams (5) are connected to the main crossbeam (2); Multiple secondary crossbeams (6) are provided below the main longitudinal beam (5), and the multiple secondary crossbeams (6) are distributed one-to-one with the multiple small gantry frames (4); The hydraulic connection system is located between the template system and the gantry assembly (1), and can control the template system to expand outward or retract inward; the hydraulic connection system includes a lifting cylinder (16), a positioning cylinder (13) and a translation cylinder (22). The lifting cylinder (16) is located inside the main column (3). The positioning cylinder (13) connects the left template (8) and the right template (9) to the secondary crossbeam (6). The translation cylinder (22) is located inside the translation support (18) at the bottom of the main gantry. The walking system is located at the bottom of the gantry assembly (1) and is used for the movement of the trolley. The walking system includes a track (21), an active walking wheel (19) and a driven walking wheel (20). The active walking wheel (19) and the driven walking wheel (20) are respectively located at the front and rear ends of the main gantry. The track (21) is laid on the ground of the site.

2. The hydraulic lining trolley for small-section tunnel chambers as described in claim 1, characterized in that, The small gantry (4) is positioned above the secondary crossbeam (6).

3. The hydraulic lining trolley for small-section tunnel chambers as described in claim 2, characterized in that, An angle plate (23) is provided at the connection between the main longitudinal beam (5) and the main transverse beam (2).

4. The hydraulic lining trolley for small-section tunnel chambers as described in claim 3, characterized in that, A lifting column (17) is installed inside the main column (3).

5. The hydraulic lining trolley for small-section tunnel chambers as described in claim 1, characterized in that, The hydraulic connection system includes a support screw (12), a positioning screw (14), and a top support screw (15). The support screw (12) hinges the left template (8), the right template (9), and the small gantry (4). The bottom of the inner side of the left flip template (10) and the right flip template (11) are provided with hinge plates (24). The positioning screw (14) hinges the two hinge plates (24) to the left template (8) and the right template (9) respectively. The two ends of the top support screw (15) are connected to the left flip template (10) and the right flip template (11) respectively.

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