A slipform trolley and its construction method

Abstract

This application relates to the field of concrete construction technology in water conservancy and hydropower engineering; in particular, it relates to a slipform trolley and its construction method. The slipform trolley provided in this application includes a formwork device for molding concrete, a frame device for supporting the formwork device, a defect elimination and curing device, a traveling device, and a control device. During use, the formwork device can be used for pouring and processing, the frame device supports the formwork device, and the traveling device drives the frame device to slide, facilitating flexible movement by the user during processing. Simultaneously, the defect elimination and curing device is provided to facilitate defect elimination and curing of the processed concrete, thereby helping to ensure the strength of the concrete. A control device is also provided connected to the formwork device and the traveling device. The control device is configured to control the reinforcement or demolding of the formwork device, and the control device is configured to control the operation of the traveling device, thereby facilitating automatic control by the user.

Description

Technical Field

[0001] This application relates to the field of concrete construction technology for water conservancy and hydropower projects; in particular, it relates to a slipform trolley and its construction method. Background Technology

[0002] Hydropower station pressure pipelines are classified into exposed pipe and tunnel types based on topographic and geological conditions. For large-diameter pressure pipelines laid in exposed locations, the structural design typically involves installing a pressure steel pipe and then encasing it in reinforced concrete to increase its stability; the cross-sectional shape is mostly rectangular. The external concrete lining usually employs construction methods such as steel formwork trolleys, assembled formwork, or large formwork. However, existing technologies have the following shortcomings in implementation: First, steel formwork trolleys are large and heavy, making installation, movement, and dismantling inconvenient; assembled formwork construction procedures are cumbersome, requiring frequent installation and dismantling, as well as scaffolding, resulting in high resource investment and limited construction speed; large formwork installation and movement are inconvenient and require specialized equipment. Second, the manufacturing and installation costs of steel formwork trolleys and large formwork are relatively high; while assembled formwork requires significant labor input and numerous auxiliary procedures, increasing project costs. Third, steel formwork trolleys and large formwork have relatively poor adaptability and versatility. When encountering cross-sectional changes, slope changes, or bends, not only are significant modifications required, but alternative lining methods may also be necessary, affecting construction speed. Fourth, the lining concrete can only be demolded after it has hardened, and construction defects cannot be detected at any time during construction, so they cannot be dealt with effectively in a timely manner, nor can the concrete be cured in a timely manner.

[0003] In summary, providing a rapid construction device and method for pressure steel pipe encased in concrete lining that is simple in structure, easy to use, highly adaptable, cost-controllable, allows for intuitive monitoring of the concrete lining process, enables demolding at any time, timely defect elimination, and timely maintenance, has become an urgent problem for engineers and technicians in this field to solve.

[0004] It should be noted that the information disclosed in the background section of this invention is intended only to enhance the understanding of the general background of this invention, and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide a sliding formwork trolley that can effectively solve the above-mentioned technical problems.

[0006] Firstly, the slipform trolley provided in this application includes a formwork device for molding concrete, a frame device for supporting the formwork device, a defect elimination and curing device, a traveling device, and a control device. The defect elimination and curing device includes a suspension auxiliary plate and a water spraying device; the traveling device is connected to the frame device and is used to drive the frame device to operate; both the formwork device and the traveling device are connected to the control device, which is configured to control the reinforcement or demolding of the formwork device and to control the operation of the traveling device.

[0007] In an optional embodiment according to the first aspect, the template device includes a sliding template, an end template, and a finishing template; the sliding template and the end template together constitute the filling space for the outer concrete, the finishing template is used to define the surface of the concrete after molding, and the end template is connected to the platform device. It should be noted that in this embodiment, the template device includes a sliding template, an end template, and a finishing template; the sliding template and the end template together constitute the filling space for the outer concrete, and the finishing template is used to define the surface of the concrete after molding. During use, the sliding template can slide along with the processing, making it flexible and easy to use. The end template is connected to the platform device, which facilitates the platform device to support the template device and also allows the end template to move together with the platform device. When the pressure pipeline has a large slope change, the top surface of the finishing template has a certain slope, which is designed to improve the finishing speed and quality. Simultaneously, the finishing template can be used to compact and smooth the concrete after timely demolding, ensuring the finishing quality.

[0008] In an optional embodiment according to the first aspect, the slipform trolley further includes a lifting device, which includes a climbing rod and a lifting member that can run along the climbing rod. The lifting member is connected to the slipform template to drive the slipform template to slide along a preset direction; the lifting member is connected to the control device. It should be noted that in this embodiment, the slipform trolley further includes a lifting device, which includes a climbing rod and a lifting member that can run along the climbing rod. The lifting member is connected to the slipform template to drive the slipform template to slide along a preset direction; the lifting member is connected to the control device. During implementation, the lifting member drives the slipform template to move along the climbing rod, thereby realizing the movement of the slipform template along the concrete processing direction, and thus realizing the continuous upward sliding of the slipform template as processing progresses. The connection between the lifting member and the control device facilitates user control of the lifting member through the control device, thereby realizing control of the lifting and lowering of the slipform template.

[0009] In an optional embodiment according to the first aspect, the lifting component includes a synchronizer and at least two jacks, the synchronizer being used to limit the synchronous lifting of the at least two jacks. It should be noted that in this embodiment, the lifting component includes a synchronizer and at least two jacks, the synchronizer being used to limit the synchronous lifting of the at least two jacks. A jack is a small, lightweight lifting device that uses a rigid lifting member as its working device, lifting heavy objects within its stroke via a top support or bottom claw. Its structure is lightweight, robust, flexible, and reliable, easy to carry and operate. The synchronizer ensures that multiple jacks are positioned at the same level, thereby ensuring that the sliding formwork is in a horizontal position, and thus ensuring that the concrete processing is in a horizontal state.

[0010] In an optional embodiment according to the first aspect, the slipform trolley further includes a concrete placement device, which includes a hopper, a distribution chute, and a hinged chute. The distribution chute is connected to both the hopper and the chute, and is used to transport concrete from the hopper to the chute. The chute is located close to the slipform. It should be noted that, in this embodiment, the slipform trolley further includes a concrete placement device, which includes a hopper, a distribution chute, and a hinged chute. The distribution chute is connected to both the hopper and the chute, and is used to transport concrete from the hopper to the chute. The chute is located close to the slipform. During use, the concrete from the hopper is transported to the chute via the distribution chute, and then to a location close to the slipform, thereby achieving uniform distribution and layered placement of the concrete onto the slipform.

[0011] In an optional embodiment according to the first aspect, the formwork device includes at least two vibrators, which are respectively connected to the sliding formwork and the finishing formwork. It should be noted that in this embodiment, the formwork device includes at least two vibrators, and the connection of the vibrators to the sliding formwork facilitates effective vibration of the concrete. The connection of the vibrators to the finishing formwork facilitates leveling and finishing.

[0012] In an optional embodiment according to the first aspect, the test bench assembly includes at least two portal trusses connected by longitudinal truss beams and scissor supports. It should be noted that in this embodiment, the test bench assembly includes at least two portal trusses connected by longitudinal truss beams and scissor supports, thereby ensuring the stability of the test bench assembly.

[0013] In an optional embodiment according to the first aspect, the walking device includes a base plate and a track disposed on the base plate, and the bottom of the portal truss is provided with walking wheels that cooperate with the track. It should be noted that, in this embodiment, the walking device is configured to include a base plate and a track disposed on the base plate, and the bottom of the portal truss is provided with walking wheels that cooperate with the track. During use, this facilitates the walking wheels' movement along the track, thereby simplifying the operation and enabling rapid movement of the platform device.

[0014] In an optional embodiment according to the first aspect, the control device includes a control terminal and a drive device connected to the control connection, with both the sliding formwork and the portal truss connected to the drive device. It should be noted that the control device includes a control terminal and a drive device connected to the control connection, with both the sliding formwork and the portal truss connected to the drive device. Connecting the drive device to the sliding formwork and the portal truss facilitates support reinforcement, demolding, and platform movement. Connecting the drive device to the control terminal facilitates control of the drive device via the control terminal.

[0015] Secondly, embodiments of this application also provide a construction method, the construction method being based on the slipform trolley described above, comprising:

[0016] Equipment manufacturing: Manufacturing the components of the template device, the platform device, and the defect elimination and maintenance device;

[0017] Installation of the walking device: The walking device is installed according to a preset method;

[0018] Equipment installation: Install the template device, the platform device, the defect elimination and maintenance device, and the control device;

[0019] Concrete construction: Concrete is poured into the formwork device for construction; curing is carried out through the suspended auxiliary plate and the water spraying device; after the construction of the preset section is completed, the platform device is driven by the walking device to move to the next preset position and repeat the above construction process until the construction is completed.

[0020] The slipform trolley provided in this application has at least the following advantages compared with the prior art:

[0021] The slipform trolley provided in this application includes a formwork device for molding concrete, a frame device for supporting the formwork device, a defect elimination and curing device, a traveling device, and a control device. During use, the formwork device can be used for pouring and processing, the frame device supports the formwork device, and the traveling device drives the frame device to slide, facilitating flexible movement by the user during processing. The defect elimination and curing device facilitates the elimination and curing of defects in the processed concrete, thereby ensuring the strength of the concrete. The control device is connected to the formwork device and the traveling device, and is configured to control the reinforcement or demolding of the formwork device, and to control the operation of the traveling device, thus facilitating automatic control by the user.

[0022] The construction method provided in this application, being based on the aforementioned slipform trolley, also possesses the aforementioned beneficial effects. Attached Figure Description

[0023] The present application will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of the sliding formwork trolley according to an embodiment of this application from a first-view perspective;

[0025] Figure 2 This is a cross-sectional view of the sliding formwork trolley according to an embodiment of this application from a first-view perspective;

[0026] Figure 3 This is a schematic diagram of the overall structure of the sliding formwork trolley according to an embodiment of this application from a second perspective;

[0027] Figure 4 This is a schematic diagram of the overall structure of the sliding formwork trolley in an embodiment of this application from a third-person perspective.

[0028] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale.

[0029] Figure label:

[0030] 10-Slipform trolley; 11-Formwork device; 111-Sliding formwork; 112-Slipform working plate; 113-End formwork; 115-Flattening formwork; 117-Second vibrator; 118-First manual hoist; 119-Second manual hoist; 12-Frame device; 121-Portal truss; 123-Longitudinal truss beam; 125-Scissor brace; 126-Demolding device; 13-Defect elimination and curing device; 131-Suspension auxiliary plate; 132-Safety net; 133 - Sprinkler device; 14- Traveling device; 141- Track; 143- Traveling wheel; 145- Reinforcing bar; 146- Hydraulic rail climber; 147- Traction device; 16- Lifting device; 161- Climbing pole; 163- Synchronizer; 165- Jack; 166- Subbase; 167- Climbing pole suspension point; 17- Concrete placement device; 171- Collecting hopper; 172- Distribution chute; 173- Hinged chute; 174- Pressure steel pipe; 18- Slipform placement position. Detailed Implementation

[0031] The present application will be further described below with reference to specific embodiments. It should be understood that these specific embodiments are for illustrative purposes only and are not intended to limit the scope of the present application.

[0032] For the sake of brevity, this article only discloses a few specific numerical ranges. However, any lower limit can be combined with any upper limit to form an unspecified range; and any lower limit can be combined with other lower limits to form an unspecified range, just as any upper limit can be combined with any other upper limit to form an unspecified range. Furthermore, each individually disclosed point or single value can itself serve as a lower or upper limit and be combined with any other point or single value or with other lower or upper limits to form an unspecified range.

[0033] In the description of this article, it should be noted that, unless otherwise stated, "above" and "below" include the number itself, and "several" in "one or more" means two or more.

[0034] Unless otherwise stated, the terms used in this application have their common meanings as commonly understood by those skilled in the art. Unless otherwise stated, the values ​​of the parameters mentioned in this application can be measured using various measurement methods commonly used in the art (e.g., they can be tested according to the methods given in the embodiments of this application).

[0035] Please refer to Figures 1 to 4The slipform trolley 10 provided in this application includes a formwork device 11 for molding concrete, a frame device 12 for supporting the formwork device 11, a defect elimination and curing device 13, a traveling device 14, and a control device. The defect elimination and curing device 13 includes a suspension auxiliary plate 131 and a water spraying device 133; the traveling device 14 is connected to the frame device 12 and is used to drive the frame device 12 to move; both the formwork device 11 and the traveling device 14 are connected to the control device, which is configured to control the reinforcement or demolding of the formwork device 11 and to control the operation of the traveling device 14.

[0036] The slipform trolley 10 provided in this application includes a formwork device 11 for molding concrete, a frame device 12 for supporting the formwork device 11, a defect elimination and curing device 13, a traveling device 14, and a control device. During use, the formwork device 11 can be used for pouring and processing, the frame device 12 supports the formwork device 11, and the traveling device 14 drives the frame device 12 to slide, facilitating flexible movement by the user during processing. Simultaneously, the defect elimination and curing device 13 is provided to facilitate defect elimination and curing of the processed concrete, thereby ensuring the strength of the concrete. A control device is connected to the formwork device 11 and the traveling device 14. The control device is configured to control the reinforcement or demolding of the formwork device 11, and to control the operation of the traveling device 14, thereby facilitating automatic control by the user.

[0037] In an optional exemplary embodiment, the template device 11 includes a sliding template 111, an end template 113, and a finishing template 115. The sliding template 111 and the end template 113 together form the filling space for the outer concrete, and the finishing template 115 is used to define the surface of the concrete after molding. The end template 113 is connected to the platform device 12. It should be noted that in this embodiment, the template device 11 includes a sliding template 111, an end template 113, and a finishing template 115. The sliding template 111 and the end template 113 together form the filling space for the outer concrete, and the finishing template 115 is used to define the surface of the concrete after molding. During use, the sliding template 111 can slide during processing, making it flexible and easy to use. The end template 113 is connected to the platform device 12, which facilitates the platform device 12 to support the template device 11 and also allows the end template 113 to move together with the platform device 12. When the pressure pipeline has a large slope, the top surface of the finishing template 115 has a certain slope, which is set to improve the finishing speed and quality. At the same time, the finishing template 115 can be used to compact and smooth the concrete after timely demolding, thereby ensuring the finishing quality.

[0038] Specifically, in this embodiment, the sliding template 111 mainly consists of a panel, ribs, supports, and a surrounding ring. The panel can be made of 4mm-6mm thick steel plate or assembled from ordinary standard steel templates. The truss surrounding ring is mainly used to support and reinforce the template, making it a whole. The truss is made of angle steel, and the cross-sectional dimensions are generally about 0.8m wide and 1m high. Its rigidity and strength are mainly considered, and it is considered in conjunction with the template and working platform. The template height can be set to 1.2m-1.5m. The template length, taking into account factors such as design joints and construction strength requirements, can be set to about 10m-15m. For ease of installation, dismantling, transportation, and modification, and to adapt to different slope changes, it can be manufactured in sections according to a certain module, with bolts connecting the sections.

[0039] Specifically, in this embodiment, the sliding formwork 111 further includes a sliding formwork working plate 112. The sliding formwork working plate 112 is one of the main load-bearing components of the sliding formwork and also the main working area for sliding formwork construction. In addition to meeting strength requirements, each component should also have sufficient rigidity. When a pressure bar type climbing rod 161 is used, the sliding formwork working plate 112 is supported on a lifting frame, connected to the formwork through the lifting frame, and provides lateral support and reinforcement for the formwork. When a tie rod type climbing rod 161 is used, the lifting frame is eliminated. Wooden boards or steel plates are directly laid on the sliding formwork as the sliding formwork working plate 112, and a safety net 132 is hung on its outer side to ensure the safety of the workers.

[0040] Specifically, in this embodiment, the end template 113 is mainly used for segmented and jointed end sealing, and can be rigidly fabricated from steel plates and structural steel. It is fabricated into four sections according to the thickness of the outer concrete, taking into account the joint sealing requirements. The sections are connected by pins and also provide support and reinforcement to the gantry frame. To expedite sealing and facilitate demolding, the end template 113 is hinged to the end gantry frame of the platform; the end template 113 moves synchronously with the platform. When the pressure pipeline has a large slope, the downstream end template 113 requires support and reinforcement.

[0041] Specifically, in this embodiment, the finishing template 115 is mainly designed to improve the finishing speed and quality when the pressure pipeline has a large slope change, as the top surface has a certain slope. The finishing template 115 can be assembled from channel steel or ordinary steel templates (approximately 0.5m wide), and an attached vibrator is installed on it to facilitate leveling and finishing. After the sliding template 111 is raised into place, as the sliding formwork gradually slides out, the finishing template 115 is pulled by a manual hoist and moved gradually along the hanging rail fixed to the top surface reinforcement. The demolded concrete is then compacted and smoothed manually to ensure the finishing quality.

[0042] In an optional exemplary embodiment, the slipform trolley 10 further includes a lifting device 16, which includes a climbing rod 161 and a lifting member that can run along the climbing rod 161. The lifting member is connected to the sliding template 111 for driving the sliding template 111 to slide along a preset direction; the lifting member is connected to the control device. It should be noted that in this embodiment, the slipform trolley 10 further includes a lifting device 16, which includes a climbing rod 161 and a lifting member that can run along the climbing rod 161. The lifting member is connected to the sliding template 111 for driving the sliding template 111 to slide along a preset direction; the lifting member is connected to the control device. During implementation, the lifting member drives the sliding template 111 to move along the climbing rod 161, thereby realizing the movement of the sliding template 111 along the concrete processing direction, and thus realizing the continuous upward sliding of the sliding template 111 as processing progresses. The lifting component is connected to the control device, so that the user can control the lifting component through the control device, thereby realizing the control of the lifting and lowering of the sliding template 111.

[0043] Specifically, it should be noted that the climbing pole 161 is divided into pressure pole type and tension pole type according to different climbing methods. The pressure pole type climbing pole 161 is made of structural steel; when the tension pole type is adopted, a lifting frame is not required. The climbing pole 161 serves as the movement track 141 of the jack 165 and is used to support the entire formwork. Different forms exist depending on the specifications of the lifting components and the climbing method; currently, 48mm outer diameter scaffolding steel pipes are commonly used. There are two types of climbing poles 161: one is the pressure pole type (internal climbing), where the climbing pole 161 is embedded in the concrete and can replace some of the reinforcing steel; when using this method, the installation of reinforcing steel must be carried out simultaneously with the concrete construction. The other is the tension pole type (external climbing), where the climbing pole 161 is outside the concrete, achieving a combination of tension and compression; when using this climbing method, the climbing pole 161 can be recycled and reused. This application specifically adopts the external climbing type, where the reinforcing steel can be pre-tied to achieve a combination of tension and compression, fully utilizing the role of the support pole, facilitating parallel operations, and improving quality control.

[0044] In an optional exemplary embodiment, the lifting component includes a synchronizer 163 and at least two jacks 165. The synchronizer 163 is used to limit the synchronous lifting of the at least two jacks 165. It should be noted that in this embodiment, the lifting component includes a synchronizer 163 and at least two jacks 165. The synchronizer 163 is used to limit the synchronous lifting of the at least two jacks 165. The jacks 165 are lightweight lifting devices that use rigid lifting components as working devices to lift heavy objects within their stroke through top supports or bottom claws. They are lightweight, robust, flexible, and reliable, easy to carry and operate. The synchronizer 163 ensures that multiple jacks 165 are positioned at the same level, thereby ensuring that the sliding formwork 111 is in a horizontal position, and thus ensuring that the concrete processing is in a horizontal state. The synchronizer 163 is a synchronization device for the jacks 165, fixed to the climbing bar, and provides timely synchronous control of the jacks 165 to ensure that the sliding formwork rises horizontally and uniformly.

[0045] Specifically, it should be noted that in this embodiment, the jack 165 is used in conjunction with the climbing pole 161. The number and tonnage of the jack 165 and climbing pole 161 are determined by stress analysis and mechanical calculation based on the template length, structural type, etc.

[0046] Specifically, during the installation process, the jack 165 is fixed to the bottom surface of the sliding template 111, the climbing rod 161 is fixed to the pad 166 from the climbing rod suspension point 167, passing through the jack 165, the synchronizer 163 is installed on the climbing rod 161 and measured and verified, and finally the climbing rod 161 is fixed at the suspension point to ensure that multiple jacks 165 are in the same level position.

[0047] In an optional exemplary embodiment, the slipform trolley 10 further includes a concrete placement device 17, which includes a hopper 171, a distribution chute 172, and a hinged chute 173. The distribution chute 172 is connected to the hopper 171 and the hinged chute 173 respectively, and is used to transport the concrete in the hopper 171 to the hinged chute 173. The hinged chute 173 is disposed close to the slipform 111. It should be noted that in this embodiment, the slipform trolley 10 further includes a concrete placement device 17, which includes a hopper 171, a distribution chute 172, and a hinged chute 173. The distribution chute 172 is connected to both the hopper 171 and the chute 173, and is used to transport the concrete in the hopper 171 to the chute 173. The chute 173 is located close to the slipform 111. During use, the concrete in the hopper 171 is transported to the chute 173 through the distribution chute 172, and then transported to a location close to the slipform 111 to achieve uniform distribution and layered placement of the concrete into the slipform 111.

[0048] In an optional exemplary embodiment, the template device 11 includes at least two vibrators, which are respectively connected to the sliding template 111 and the finishing template 115. It should be noted that in this embodiment, the template device 11 includes at least two vibrators. A first vibrator is connected to the sliding template 111 to facilitate effective vibration of the concrete. A second vibrator 117 is connected to the finishing template 115 to facilitate leveling and finishing. Specifically, in this embodiment, the first vibrator is an insert vibrator (not shown in the figure), which is used to effectively vibrate the concrete at the top of the sliding template 111. The second vibrator 117 is an attached vibrator, which is installed on the finishing template 115 to facilitate leveling and finishing.

[0049] In an optional exemplary embodiment, during use, as the sliding template 111 rises, an auxiliary plate 131 is suspended at the lower part of the sliding template 111, and a safety net 132 is hung around it, so that it is convenient for manual labor to promptly eliminate and treat defects in the concrete quality and embedded parts after demolding on the suspended auxiliary plate 131; and the water spraying device 133 is set along the sliding template 111 to ensure timely water spraying and curing of the concrete that has reached the initial setting strength.

[0050] In an optional exemplary embodiment, the test bench assembly 12 includes at least two portal trusses 121 connected by longitudinal truss beams 123 and scissor supports 125. It should be noted that in this embodiment, the test bench assembly 12 is configured to include at least two portal trusses 121 connected by longitudinal truss beams 123 and scissor supports 125, thereby ensuring the stability of the test bench assembly 12.

[0051] Specifically, in this embodiment, the platform device 12 includes three to five portal trusses 121. The spacing between the portal trusses 121 mainly considers factors such as their strength, stiffness, and lateral pressure on the concrete. The portal trusses 121 are connected to each other using longitudinal truss beams 123 and scissor supports 125 to form a rigid structure. The platform length comprehensively considers requirements such as its travel method, lining strength, design joints, and reinforcement installation. The platform width and height comprehensively consider factors such as the thickness of the outer concrete, slipforming, suspension, and demolding. When the pressure pipeline has a large slope, the platform support must be reinforced to ensure its stability. It is understood that the specific number of portal trusses 121 is not limited here. In other specific embodiments, the number of portal trusses 121 can be set to an appropriate number according to the user's needs.

[0052] In an optional exemplary embodiment, the walking device 14 includes a base plate and a track 141 disposed on the base plate, and the bottom of the portal truss 121 is provided with walking wheels 143 that cooperate with the track 141. It should be noted that, in this embodiment, the walking device 14 is configured to include a base plate and a track 141 disposed on the base plate, and the bottom of the portal truss 121 is provided with walking wheels 143 that cooperate with the track 141. During use, this facilitates the movement of the walking wheels 143 along the track 141, thereby simplifying the operation and enabling rapid movement of the platform device 12.

[0053] Specifically, in this embodiment, the walking device 14 adopts a track 141 walking method, using a double-track arrangement of 24kg / m standard steel rails, fixed to the base plate with reinforcing bars 145 and structural steel (which can be shared with the steel reinforcement installation trolley track 141). The walking wheels 143 are made of cast steel and are matched with the walking track 141. The walking wheels 143 are fixed to the bottom of the gantry. The hydraulic rail climber 146 is fixed on the track 141 and connected to the platform with a large-stroke hydraulic cylinder. The hydraulic rail climber 146 is controlled by a centralized hydraulic control console, driving the rail climber cylinder to sequentially complete the movement of the trolley.

[0054] In an optional exemplary embodiment, the control device includes a control terminal and a drive device connected to the control connection. Both the sliding template 111 and the portal truss 121 are connected to the drive device. It should be noted that the control device includes a control terminal and a drive device connected to the control connection. Connecting the drive device to the sliding template 111 and the portal truss 121 facilitates support reinforcement, demolding, and platform movement. Connecting the drive device to the control terminal facilitates control of the drive device via the control terminal.

[0055] Specifically, in this embodiment, the driving device is a hydraulic cylinder, which serves as the power source for the sliding template 111 and is controlled by the control terminal. The control terminal is a dedicated device that acts as the system's command center. It provides power to the jacks 165 via oil pipes and control valves, and is mounted on the sliding template working plate 112. It is connected to each cylinder and jack 165 via hydraulic oil pipes. Specifically, the control terminal can be configured for computer control, thereby realizing the functions of moving the sliding template trolley 10, sliding template lifting, and demolding.

[0056] In an optional exemplary embodiment, a reserved space is provided between the portal truss 121 and the template. It should be noted that the reserved space between the portal truss 121 and the template is provided for demolding purposes, allowing for demolding using a hydraulic cylinder or lead screw.

[0057] This application also provides a construction method based on the slipform trolley 10 described above, comprising:

[0058] Equipment manufacturing: Manufacturing the components of the template device 11, the platform device 12, and the defect elimination and maintenance device 13;

[0059] Laying the walking device 14: Laying the walking device 14 according to a preset method;

[0060] Equipment installation: Install the template device 11, the platform device 12, the defect elimination and maintenance device 13, and the control device;

[0061] Concrete construction: Concrete is injected into the formwork device 11 for construction; curing is carried out through the suspended auxiliary plate 131 and the water spray device 133; after the construction of the preset section is completed, the platform device 12 is driven by the walking device 14 to move to the next preset position and repeat the above construction process until the construction is completed.

[0062] Specifically, in this embodiment, the construction method involves the following steps:

[0063] Trolley fabrication: The portal truss 121, the sliding template 111, the end template 113, the finishing template 115, etc. are manufactured in the manufacturing workshop in sections and blocks according to the design requirements, and pre-assembled for no-load testing. After passing the acceptance test, they are numbered and disassembled for convenient transportation.

[0064] Track 141 laying: Accurately measure and mark the position of track 141 on the pad layer 166, fix the steel sleepers with reinforcing bars 145, place track 141 on the sleepers, level and align it, and then firmly fix it.

[0065] Reinforcing steel installation: Reinforcing steel can be installed in advance, or it can be installed and slip-formed simultaneously during the construction process. The method of installing reinforcing steel first is recommended, as it allows for rebar placement within designated areas, simplifies construction procedures, and facilitates rapid concrete pouring.

[0066] Installation of the trolley system: Installation is done in sections and blocks. First, the sliding formwork 111 is placed in position, then the portal truss 121 is installed. After reinforcement and stability with scissor braces and longitudinal truss beams 123, the hydraulic system is installed (jacks 165 are fixed to the bottom surface of the sliding formwork 111, climbing rods 161 are fixed to the padding layer 166 from the climbing rod suspension point 167, passing through jacks 165, and then synchronizers 163 are installed on the climbing rods 161 and measured and verified, finally fixing the climbing rods 161 to the suspension point). The end formwork 113 is hinged to the end portal truss 121, and the blocks are pinned together and supported and reinforced. The finishing formwork 115 is placed, and the attached vibrator is installed, and the first manual hoist 118 is hung. After all systems are installed and firmly reinforced, a no-load test is conducted to test the operation of each system. Only after everything is normal can slipform construction begin.

[0067] Material conveying system installation: After the trolley is in place, install the concrete aggregate hopper 171, distribution chute 172, and hinged chute 173 on the platform; install the concrete pump in a suitable location and lay the concrete pump pipe into the aggregate hopper 171. When using a concrete pump truck for delivery, the material conveying system may not be necessary.

[0068] Concrete construction: To facilitate end sealing, the inter-unit method is also adopted. Concrete is transported by tanker truck and pumped to aggregate hopper 171. It is then symmetrically placed into the unit and evenly distributed using distribution chute 172 and hinged chute 173. Manual compaction is carried out in layers on the working plate using a flexible shaft vibrator. The principles of sequential placement, layer leveling, uniform compaction, synchronous slipforming, timely defect elimination, and regular curing are strictly followed.

[0069] Slipforming and raising: The initial pouring of concrete and the initial slipforming should be strictly carried out according to the following six steps: First, pour a 10cm thick layer of semi-aggregate concrete or mortar; then pour the second layer of concrete in layers no more than 30cm thick; when the thickness reaches 70cm, begin slipforming 3cm-6cm to check if the demolded concrete strength is appropriate. After the fourth layer is poured, slipform 6cm, continue pouring the fifth layer and slipform 12cm-15cm, and after the sixth layer is poured, slipform 20cm. If there are no abnormalities, normal pouring and slipforming can proceed. Concrete pouring should be done in symmetrical layers, with each layer no more than 30cm thick. The initial slipforming of the slipform 111 should be carried out slowly. During this process, the hydraulic device, formwork structure, and related facilities should be comprehensively and systematically inspected under load. Any problems found should be dealt with promptly. Normal slipforming can only proceed after everything is normal. When construction transitions to normal slipforming, continuous operation should be maintained as much as possible. A designated person should observe the surface quality of the demolded concrete to determine the appropriate slipforming time and speed. Normal daily slipforming is around 4m-6m, which needs to be determined based on comprehensive tests of concrete characteristics, feed strength, ambient temperature, demolding strength, etc.

[0070] Before pouring concrete, a solidification test should be conducted, and the solidification time should be controlled to 4–6 hours. To ensure smooth placement of the concrete, the workability and slump of the concrete must meet the placement requirements. The demolded concrete surface should be free of flow and cracking, feel firm to the touch, and leave a fingerprint of about 1 mm. It should be smooth with a trowel. If the demolded concrete surface is smooth, troweling is not necessary. If there are defects in the demolded concrete surface, it should be repaired immediately, generally by smoothing the surface with mortar using a trowel. To ensure smooth slipforming, the concrete supply must be continuous, appropriate admixtures should be selected, and the initial setting time can be adjusted in a timely manner according to the site environment, climate, temperature, and other conditions.

[0071] When the sliding template 111 approaches the sliding film closing position 18 (i.e., the top surface position), the first manual hoist 118 is manually pulled to tug the closing template 115. As the sliding template 111 slides through the air, the closing work is completed.

[0072] Concrete Defect Repair and Curing: After demolding, the concrete should be promptly repaired and defect-removed using an auxiliary tray, ensuring a smooth, uniform, and flat surface. To ensure suitable hardening conditions for the demolded concrete surface and prevent cracking, a water spray pipe can be installed on the auxiliary tray, or a curing agent can be used to promptly cure the demolded concrete surface.

[0073] Formwork lowering and translation: When the sliding formwork 111 slides to the slipform closing position 18 and the surface is closed, first loosen the end formwork 113 and fix it together with the closing formwork 115 on the portal truss 121. Then use the second manual hoist 119 to suspend the sliding formwork 111 (at least 2 sets on each side), remove the climbing rod 161, and loosen the demolding device 126 to separate the sliding formwork 111 from the concrete. Then use the first manual hoist 118 to slowly place the slipform to the bottom plate. Finally, use the rail climber to gradually move the trolley to the next compartment number through the traction device 147 and the traveling wheels 143, thus starting the concrete construction of the next compartment number.

[0074] By repeating this process step by step, the construction of the concrete lining around the pressure steel pipe 174 is gradually completed (the initial lining construction is carried out first; during the replenishment construction, the end formwork 113 is not required). When encountering changes in cross-section or slope, simple modifications can be made before implementation.

[0075] The main technical advantages of the sliding trolley and construction method provided in this application are as follows:

[0076] (1) The sliding trolley travels on the track 141, making installation and dismantling relatively flexible; it is pulled by a hydraulic rail climber 146, making movement smooth and very convenient. After each compartment is completed, it can be moved to the next compartment in a relatively short time; it adopts a fully hydraulic centralized control, making construction operation convenient and enabling rapid realization of construction procedures such as moving, positioning, fixing, construction, defect elimination, curing, and demolding.

[0077] (2) The concrete construction process is intuitive and controllable. The concrete placement, leveling, and vibration are all carried out within a certain range on the top of the formwork. The operation is convenient and easy to control, which can fully ensure uniform placement, layered leveling, and dense vibration, which is beneficial to the internal quality of the concrete.

[0078] (3) Demolding conforms to the concrete strength pouring law. The concrete demolding strength is controlled within the range of 0.1MPa to 0.3MPa, which is still in the initial setting period. After demolding, personnel can check the concrete pouring quality in time and deal with surface defects and embedded parts in time. This can ensure both surface quality and surface aesthetics. Water curing is carried out in a timely, continuous and uniform manner on the auxiliary plate, which is also conducive to ensuring concrete strength.

[0079] (4) The trolley movement and the rebar installation trolley share the same track 141, which ensures high construction accuracy, guaranteed rebar binding quality, and effectively improves construction speed, which is conducive to realizing parallel operation of rebar installation and concrete construction.

[0080] (5) It is manufactured in sections with different modules. The structural length and width can be adjusted to adapt to changes in concrete structures, and it has good versatility and adaptability.

[0081] The construction method provided in this application, being based on the aforementioned slipform trolley 10, also possesses the aforementioned beneficial effects.

[0082] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A sliding formwork trolley, characterized in that, Includes a formwork device for shaping concrete and a frame device for supporting the formwork device; as well as The defect elimination and maintenance device includes a suspended auxiliary plate and a water spraying device; A walking device, which is connected to the platform device, is used to drive the platform device to operate; as well as The control device is connected to both the template device and the walking device. The control device is configured to control the template device to reinforce or demold, and the control device is configured to control the operation of the walking device. The template device includes: End templates are installed at both ends of the pressure pipeline along its length. When the pressure pipeline forms a slope with the horizontal plane, the end templates are used to define the two ends of the outer concrete of the pressure pipeline along the upstream and downstream directions. Each end template is composed of several plates, with adjacent plates pinned together and the outer plate hinged to the frame device. A sliding template, together with the end template, surrounds the pressure pipe and together forms the filling space for the concrete encasing the pressure pipe; the sliding template is configured to slide upwards; and further includes: The finishing template has a slide rail at the finishing position near the sliding template. The slide rail extends along the upstream and downstream direction of the pressure pipe. The finishing template is slidably mounted on the slide rail and is connected to a traction rope. The finishing template is adapted to slide along the length of the slide rail under the traction of the traction rope to compact and finish the top surface of the concrete.

2. The sliding formwork trolley according to claim 1, characterized in that, The sliding formwork trolley also includes a lifting device, which includes a climbing rod and a lifting component that can run along the climbing rod. The lifting component is connected to the sliding template to drive the sliding template to slide along a preset direction; the lifting component is connected to the control device.

3. The slipform trolley according to claim 2, characterized in that, The lifting component includes a synchronizer and at least two jacks, the synchronizer being used to limit the synchronous lifting of the at least two jacks.

4. The sliding formwork trolley according to claim 1, characterized in that, The slipform trolley also includes a concrete placement device, which includes a hopper, a distribution trough, and a movable chute. The distribution trough is connected to the hopper and the movable chute respectively, and is used to transport the concrete in the hopper to the movable chute. The movable chute is located close to the slipform.

5. The slipform trolley according to claim 1, characterized in that, The template device includes at least two vibrators, which are respectively connected to the sliding template and the finishing template.

6. The sliding formwork trolley according to claim 1, characterized in that, The platform assembly includes at least two portal trusses, which are connected by longitudinal truss beams and scissor supports.

7. The slipform trolley according to claim 6, characterized in that, The walking device includes a base plate and a track set on the base plate, and the bottom of the portal truss is provided with walking wheels that cooperate with the track.

8. The slipform trolley according to claim 7, characterized in that, The control device includes a control terminal and a drive device connected to the control connection. The sliding template and the portal truss are both connected to the drive device.

9. A construction method, characterized in that, The construction method is based on a slipform trolley including any one of claims 1 to 8, comprising: Equipment manufacturing: Manufacturing the components of the template device, the platform device, and the defect elimination and maintenance device; Installation of the walking device: The walking device is installed according to a preset method; Equipment installation: Install the template device, the platform device, the defect elimination and maintenance device, and the control device; Concrete construction: Concrete is poured into the formwork device for construction; curing is carried out using the suspended auxiliary plate and the water spray device; During the concrete construction process, the sliding formwork slides upward layer by layer to pour concrete in layers; when the sliding formwork reaches the closing position, the traction rope is pulled to drive the closing formwork to slide on the slide rail to compact and close the top surface of the concrete. After the construction of the preset section is completed, the platform device is driven by the walking device to the next preset position to repeat the above construction process until the construction is completed.

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