Full-face self-propelled hydraulic jumbo

Abstract

The application provides a full-section self-propelled hydraulic trolley, which comprises a bearing frame made of closed-section steel, a walking mechanism installed at the bottom of the bearing frame and comprising at least two groups of track units, a formwork assembly comprising oppositely arranged outer side formworks and inner formworks, and a pouring cavity formed by the combination of the outer side formworks and the inner formworks, and the formwork assembly further comprises a connecting beam, one end of the connecting beam is fixedly connected with a sliding part of a sliding guide arranged on a longitudinal connecting beam, and the trolley further comprises a driving assembly comprising a first driving unit and a second driving unit. The bearing frame of the application is made of closed-section steel and is formed into an integral structure by welding, thereby providing stable rigid support for the formwork and ensuring the pouring quality. Meanwhile, wide track walking units are adopted, the ground contact area is large, the ground contact specific pressure is low, the walking stability of the trolley is ensured, and the construction precision is ensured. The first driving units distributed in multiple layers are matched with the sliding guide to realize the regulation and control of the formwork, and the three components are in synergistic action, thereby solving the chain defects caused by the deficiency of a single link in the prior art.

Description

Technical Field

[0001] This application relates to the field of water conservancy engineering construction equipment technology, and in particular to a full-section self-propelled hydraulic trolley. Background Technology

[0002] In the field of concrete lining construction for water conservancy projects, the channel cross-section is typically rectangular or trapezoidal, with sidewall height generally ranging from 3 to 6 meters and single-section pouring length from 6 to 12 meters. Traditional construction methods employ full-span scaffolding in conjunction with modular formwork. This requires erecting scaffolding on the already poured base slab as a support system for the inner sidewall formwork, followed by the use of tie rods and external formwork bracing to secure the outer formwork. This method suffers from low production efficiency, high consumption of reusable materials, high personnel input, high safety risks, and poor appearance quality of the finished concrete, with particularly significant disadvantages in the construction of long-distance rectangular open channels.

[0003] Chinese patent application CN109763839A discloses a method for constructing a full-section self-propelled hydraulic trolley formwork. The trolley includes a gantry structure, a traveling mechanism, and a formwork system. The gantry structure consists of multiple prefabricated crossbeams and columns, with the crossbeams connected by bolts. During operation, the formwork is positioned before channel concrete is poured. However, the prefabricated gantry structure has the following problems: First, the bolted connections between the crossbeams result in assembly play at the joints, which can lead to lateral pressure on the concrete (measured at 50–70 kN / m). 2 Under the action of eccentric load, the gantry structure is prone to torsional deformation and column inward shrinkage, which affects the quality of pouring; secondly, its main crossbeam is made of open section steel such as I-beams or H-beams, which has insufficient torsional stiffness and large torsional angle under eccentric load, which cannot provide stable rigid support for the formwork.

[0004] Chinese patent application CN103982200A discloses a full-section internal sliding rail moving steel formwork trolley, which adopts an internal sliding rail formwork moving mechanism, in which the formwork moves into position within the trolley frame via sliding rails. Although this solution simplifies the assembly and disassembly of the formwork, its gantry structure is still a multi-segment assembly type, and the H-shaped steel components are connected by bolts, which also has the problem of structural deformation caused by play at the connection.

[0005] In summary, the insufficient rigidity issue is not caused by a single factor. The main crossbeams of assembled gantry frames generally use open sections, resulting in significantly lower torsional stiffness compared to box beams of the same cross-section, leading to significant torsional deformation under eccentric loads. Simultaneously, the small ground contact area of ​​the track-mounted steel wheels makes them prone to uneven settlement and trolley misalignment on soft soil foundations, further exacerbating structural deformation. Deformation of the gantry frame, in turn, leads to decreased formwork positioning accuracy, increased rates of honeycomb and pitting, and higher rates of misalignment. These rigidity, movement stability, and formwork accuracy issues are interconnected and mutually causal; improving only one aspect is insufficient to fundamentally eliminate the defects. Summary of the Invention

[0006] This application provides a full-section self-propelled hydraulic trolley to solve the problem of insufficient structural stability caused by the prefabricated gantry structure and rail-type steel wheels of existing full-section trolleys.

[0007] To achieve the above objectives, this application provides a full-section self-propelled hydraulic trolley, comprising: a load-bearing frame made of closed-section steel, including cross-connected transverse main beams and a top longitudinal connecting beam to form a grid support structure at the top; multiple rows of vertical columns spaced along the transverse main beams; longitudinal connecting beams connecting the vertical columns in the same row along the trolley's travel direction; a traveling mechanism installed at the bottom of the load-bearing frame, including at least two sets of track units and each track unit equipped with an independent drive device; a formwork assembly including an outer formwork and an inner formwork arranged opposite each other, which together form a casting cavity; the formwork assembly also includes a connecting beam, one end of which is connected to the sliding end of a sliding guide provided on the longitudinal connecting beam; a drive assembly including a first drive unit whose two ends are respectively connected to the load-bearing frame and the formwork assembly; and a second drive unit installed at the connection between the load-bearing frame and the traveling mechanism.

[0008] This application employs a full-section self-propelled hydraulic trolley. The supporting frame uses closed-section steel, welded together to form an integral structure, providing stable rigid support for the formwork and ensuring pouring quality. Simultaneously, it utilizes wide-width tracked walking units with a large ground contact area and low ground pressure, ensuring the trolley's walking stability and construction accuracy. This application provides rigid support through a closed-section integral welded frame, ensures soft soil foundation stability through a tracked walking system, and utilizes multi-layered first drive units in conjunction with sliding guides to achieve formwork adjustment. The synergistic effect of these three elements effectively solves the chain-reaction defects caused by deficiencies in a single component in existing technologies.

[0009] As an improvement, the vertical columns are arranged in four rows at intervals along the length of the transverse main beam, with two rows on each side; the outer formwork and the inner formwork are arranged between the two rows of vertical columns on the same side.

[0010] As a further improvement, the load-bearing frame also includes a first diagonal support rod disposed between the transverse main beam and the vertical column, and a second diagonal support rod disposed between the transverse main beam and the top longitudinal connecting beam, with each end of the diagonal support rod connected to the corresponding beam or column.

[0011] As another improvement, the template assembly includes a template panel, several secondary keels fixed to the back of the template panel, and a main keel fixed to the back of the secondary keels. The main keel is fixedly connected to the end of the first drive unit. Both the main keel and the secondary keels are made of closed-section steel.

[0012] As another improvement, the bottom edge of the template assembly is provided with a flexible seal to seal the gap between the template and the constructed surface; the bottom of the inner template has an inclined surface for forming a chamfer.

[0013] As another improvement, a first drive unit is provided on the side of each connecting beam; the first drive units are distributed in multiple layers along the vertical direction to jointly adjust the moving position of the template assembly; the trolley also includes a control unit, which is electrically connected to each drive assembly and drive device.

[0014] This invention also provides a method for concrete pouring in a rectangular channel section, using the aforementioned full-section self-propelled hydraulic trolley, comprising the following steps: providing a pouring cavity corresponding to the designed cross-section of the section to be poured, the pouring cavity being formed by an outer template and an inner template, the bottom of which is sealed by a cushion layer; sealing the longitudinal ends of the pouring cavity; pouring concrete into the chamfered areas at the bottom and sides of the pouring cavity, so that the concrete is shaped into a chamfered structure at the bottom of the inner template under the action of the inclined surface of the inner template; after the concrete in the chamfered area reaches a predetermined strength, pouring concrete into the sidewall area of ​​the pouring cavity, so that the concrete in the sidewall area and the concrete in the chamfered area are combined into an integral structure; after the concrete reaches the demolding strength, detaching the outer template and the inner template from the concrete sidewall and lifting them off the top surface of the concrete.

[0015] The rectangular channel cross-section concrete pouring method provided in this application enables the first drive unit to achieve lateral demolding of the formwork, and the second drive unit to achieve overall lifting and demolding of the trolley. The demolding operation is simple and efficient. The crawler walking mechanism has its own drive device and can move around on its own without laying tracks, which greatly improves construction efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the full-section self-propelled hydraulic trolley provided in the embodiments of this application; Figure 2 This is a schematic diagram of the cross-section of the full-section self-propelled hydraulic trolley provided in the embodiments of this application; Figure 3 This application provides Figure 1 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the template component structure provided in the embodiments of this application; Explanation of reference numerals in the attached figures: 1. Load-bearing frame; 11. Transverse main beam; 12. Top longitudinal connecting beam; 13. Vertical column; 14. Longitudinal connecting beam; 15. First diagonal support rod; 16. Sliding guide; 17. Second diagonal support rod; 2. Walking mechanism; 21. Track unit; 22. Drive unit; 23. Walking frame; 3. Template components; 31. Outer template; 32. Inner template; 33. Connecting beam; 310. Template panel; 320. Secondary joists; 330. Main joists; 340. Flexible sealing elements; 4. Drive components; 41. First drive unit; 42. Second drive unit. Detailed Implementation

[0017] The following will be combined with the appendix Figures 1-4 The embodiments of the technical solution of this application are described in detail below. The following embodiments are only used to illustrate the technical solution of this application more clearly, and are therefore only examples and should not be used to limit the scope of protection of this application.

[0018] like Figure 1 , Figure 2 As shown, the full-section self-propelled hydraulic trolley provided in this embodiment is mainly used for concrete lining construction of rectangular open channels. It includes a load-bearing frame 1, a traveling mechanism 2, a formwork assembly 3, a drive assembly 4, and a control unit. The trolley extends longitudinally along the channel, and its longitudinal dimensions can be adjusted according to the pouring length of a single section. In this embodiment, the longitudinal length of the trolley is 9m, which is suitable for conventional single-section pouring requirements and can cover rectangular channel construction with a height of 3 to 6m.

[0019] The load-bearing frame 1 is an integral welded space truss structure. All main load-bearing components are made of closed-section steel, which effectively solves the problem of assembly play of the assembly bolts and has high torsional and bending stiffness.

[0020] The load-bearing frame 1 includes a transverse main beam 11, a top longitudinal connecting beam 12, a vertical column 13, a longitudinal connecting beam 14, an inclined support rod, and a sliding guide 16.

[0021] The transverse main beam 11 is arranged horizontally along the transverse direction of the trolley, and multiple beams are set at intervals along the longitudinal direction of the trolley; the top longitudinal connecting beam 12 is arranged horizontally along the travel direction of the trolley (longitudinal direction), and is welded and fixed perpendicularly to each transverse main beam 11, forming a grid-like support structure on the top of the trolley.

[0022] The vertical columns 13 are set vertically, and their upper ends are welded and fixed to the horizontal main beam 11. They are arranged in four rows along the length of the horizontal main beam 11, with two rows arranged on each side of the channel. The two rows of vertical columns 13 on the same side form a template installation space, which forms a double constraint on the columns and can limit the displacement of the template under lateral pressure.

[0023] The longitudinal connecting beam 14 extends horizontally along the longitudinal direction of the trolley and is welded and fixed to each of the vertical columns 13 in the same row to form a longitudinally continuous force transmission component.

[0024] The inclined support rods are arranged obliquely, including a first inclined support rod 15 and a second inclined support rod 17. The two ends of the first inclined support rod 15 are welded and fixed between the transverse main beam 11 and the vertical column 13, respectively. The two ends of the second inclined support rod 17 are welded and fixed between the transverse main beam 11 and the top longitudinal connecting beam 12, forming a triangular stable structure between the column and the beam. Each vertical column 13 is provided with at least one set of second inclined support rods 17. Multiple sets of inclined support rods together constitute a spatial stability system, further improving the overall torsional and lateral stiffness of the load-bearing frame 1.

[0025] The sliding guide 16 is fixedly installed on the longitudinal connecting beam 14, extending horizontally along the trolley, with multiple sets correspondingly arranged vertically. In this embodiment, the sliding guide 16 adopts a guide rail-slider combination structure. The guide rail is fastened to the inner wall of the longitudinal connecting beam 14 by bolts, and the slider, as the sliding end of the sliding guide 16, is fixedly connected to the connecting beam 33 of the template assembly 3, providing precise lateral movement guidance for the template's closing and demolding. At the same time, it directly transmits the concrete lateral pressure borne by the template to the bearing frame 1 through the longitudinal connecting beam 14, making the force transmission path direct and clear.

[0026] As a preferred embodiment, the transverse main beam 11 adopts a box-shaped closed section, welded from Q235B steel plate, with a section height of 400-600mm, a section width of 300-400mm, and a steel plate wall thickness of 10-16mm, suitable for rigid support requirements under large spans. As an optional embodiment, the cross-sectional shape of the transverse main beam 11 is not limited to box shape, and can also adopt closed section shapes such as circular or regular hexagonal. The joints of the above-mentioned closed section members all adopt the intersecting line welding process to ensure connection strength, and their torsional stiffness is much higher than that of open section steel with the same amount of steel, which can effectively resist torsional deformation under eccentric loads.

[0027] The traveling mechanism 2 is installed at the bottom of the supporting frame 1 and is used to realize the self-movement and transfer of the trolley. It includes track units 21, corresponding drive devices 22, and traveling frames 23. In this embodiment, a total of four sets of track units 21 are provided, which are arranged at the four corners of the supporting frame 1 respectively.

[0028] Each track unit 21 is equipped with an independent drive unit 22. The drive unit 22 uses a hydraulic motor and a reduction mechanism to independently control the speed and direction of each track unit 21, enabling the trolley to move straight and turn differentially without the need for additional track laying.

[0029] The traveling frame 23 is fixedly installed above each track unit 21 as the load-bearing base for lifting connection; the track unit 21 adopts wide track plates with large ground contact area and low ground pressure, which can travel stably on soft soil foundation and unhardened cushion layer, avoiding trolley deviation caused by uneven settlement.

[0030] See attached document Figure 4 The template assembly 3 is used to enclose and form the casting cavity, including an outer template 31 and an inner template 32 arranged opposite to each other. The two are respectively arranged on the outer and inner sides of the channel sidewall, enclosing and forming a casting cavity that matches the channel design cross-section. Each template is correspondingly set in the space between two rows of vertical columns 13 on the same side.

[0031] The template assembly 3 also includes connecting beams 33, which are horizontally fixed to the main keel on the back of the template and arranged in multiple rows along the height direction. Each connecting beam 33 is fixedly connected to the slider of the sliding guide 16 at the corresponding height, realizing the sliding assembly of the template and the load-bearing frame 1. In order to improve the stability of the template assembly 3, as an optional implementation, the number of connecting beams 33 corresponds to the number of main keels 330, with 7 beams arranged in each row along the length of the main keel 330. Therefore, each template has 27 connecting beams evenly distributed, realizing the effective support of the load-bearing frame 1 for the template assembly 3.

[0032] Furthermore, both the outer formwork 31 and the inner formwork 32 include a formwork panel 310, secondary joists 320, and main joists 330. The formwork panel 310 is a flat steel plate that directly contacts the concrete; several secondary joists 320 are vertically fixed to the back of the formwork panel 310, and the main joists 330 are fixed to the back of the secondary joists 320. The extension direction of the main joists 330 is perpendicular to that of the secondary joists 320, forming a grid-like support system. The main joists 330 are fixedly connected to the end of the driving component 4, uniformly transmitting the driving force to the entire formwork.

[0033] Both the main keel 330 and the secondary keel 320 adopt closed-section steel, which further improves the bending and torsional stiffness of the formwork system itself and reduces the deformation of the formwork under the lateral pressure of concrete.

[0034] The bottom edge of template component 3 is equipped with a flexible sealing element 340, specifically a rubber sealing strip, which runs along the entire length of the bottom of the template to seal the gaps between the template and the subbase and the already constructed concrete surface, preventing cement slurry leakage during the pouring process. The bottom of the inner template 32 has an inclined surface that slopes downwards towards the inside of the channel, used for directly pouring and forming the chamfered structure of the channel bottom. The lower edge of the inclined surface of the inner template 32 is also equipped with a flexible sealing element 340 to seal against the pre-poured channel bottom slab subbase. Sealing strips are installed at the longitudinal joints of the template and the end sealing joints to form a complete sealing system.

[0035] See attached document Figure 2 and 3 The drive assembly 4 includes a first drive unit 41 and a second drive unit 42. In this embodiment, both types of drive units are hydraulic cylinders.

[0036] The cylinder end of the first drive unit 41 is fixed to the longitudinal beam 14 of the supporting frame 1, and the piston rod end is fixedly connected to the main keel 330 of the template assembly 3, used to drive the template to perform mold closing and demolding actions in the lateral direction. A first drive unit 41 is correspondingly provided on the side of each connecting beam 33, and the first drive units 41 are distributed in multiple layers along the vertical direction; in this embodiment, three layers of first drive units 41 are provided along the height direction of the template, namely upper, middle, and lower layers. Multi-point synchronous driving adjusts the lateral position of the template, ensuring the smoothness and positioning accuracy of the overall template translation. After the template is closed in place, its position can be locked by a mechanical locking pin provided between the sliding guide 16 and the connecting beam 33, working in conjunction with hydraulic pressure holding to resist the lateral pressure of the concrete.

[0037] The second drive unit 42 is located at the connection between the supporting frame 1 and the traveling mechanism 2. Specifically, the cylinder end is fixedly connected to the top of the traveling frame 23, and the piston rod end is fixedly connected to the top longitudinal connecting beam 12. Two sets of second drive units 42 are correspondingly set above each track unit 21. Multiple sets of hydraulic cylinders operate synchronously to drive the entire supporting frame 1 and template assembly 3 to vertically lift and lower relative to the traveling mechanism 2, realizing the overall lifting and lowering of the trolley. Limit blocks and locking mechanisms are set at both ends of the stroke of the second drive unit 42, which can be mechanically locked after lifting and lowering to the correct position.

[0038] The trolley also includes a control unit, which is electrically connected to the hydraulic control valve groups of each first drive unit 41 and second drive unit 42, as well as the drive device 22 of each track unit 21. The control unit has a built-in synchronization control module, which uses displacement sensors to feed back the movement displacement of each cylinder, thereby realizing the synchronous extension and retraction of the multi-layer first drive units 41 and the synchronous lifting and lowering of multiple sets of second drive units 42. At the same time, it can independently control the traveling speed and steering of each track unit 21 to complete the accurate positioning of the trolley.

[0039] On the other hand, this application also provides a construction method for rectangular channel concrete lining using the aforementioned full-section self-propelled hydraulic trolley, including the following steps: Provide a pouring cavity corresponding to the design cross-section of the section to be poured. The pouring cavity is formed by the outer template 31 and the inner template 32, and its bottom is sealed by a cushion layer. Seal the molds at both longitudinal ends of the casting cavity; Concrete is poured into the chamfered areas at the bottom and sides of the casting cavity, so that the concrete is formed into the chamfered structure at the bottom of the channel under the action of the inclined surface at the bottom of the inner formwork 32. After the concrete in the chamfered area reaches the predetermined strength, concrete is poured into the side wall area of ​​the pouring cavity, so that the concrete in the side wall area and the concrete in the chamfered area are combined into an integral structure. After the concrete reaches the demolding strength, the outer formwork 31 and the inner formwork 32 are detached from the concrete sidewall and lifted off the top surface of the concrete.

[0040] Specifically, the construction method involves using the aforementioned trolley to perform the following operational steps: Trolley positioning: The control unit drives the drive device 22 of each track unit 21 to move the trolley as a whole to the section of the channel to be poured. The section to be poured has been prepared in advance. Adjust the position of the trolley so that the template assembly 3 is aligned with the construction section.

[0041] Formwork Closure and Positioning: The control unit controls the first drive unit 41 of each layer to extend synchronously, driving the outer formwork 31 and inner formwork 32 to move laterally towards the construction position along the sliding guide 16, and then inserting the mechanical locking pin to lock the position. At the same time, the control unit controls the second drive unit 42 to retract, driving the bearing frame 1 and the formwork assembly 3 to descend as a whole, so that the bottom flexible sealing element 340 of the outer formwork 31 is tightly attached to the surface of the channel cushion layer, and the sealing element on the inclined surface of the bottom of the inner formwork 32 is attached to the bottom plate cushion layer. At this time, the outer formwork 31 and the inner formwork 32 enclose a closed pouring cavity consistent with the design cross section. The overall vertical load of the trolley is still borne by the crawler unit 21, and the formwork only bears the horizontal lateral pressure and sealing pre-pressure.

[0042] End sealing formwork: End sealing formwork is installed at both longitudinal ends of the casting cavity, along the position of the channel waterstop. The end sealing formwork is made of 6mm thick steel plate, with transverse and longitudinal stiffening ribs welded to the back to enhance rigidity. Wooden formwork with back ribs can also be used. Sealing strips are installed at the joints between the sealing formwork and the main formwork to seal the joint gaps.

[0043] Chamfered Area Pouring: Concrete is poured into the chamfered areas at the bottom and sides of the pouring cavity. The chamfered structure at the bottom of the inner formwork 32 is directly formed using the inclined surface of the bottom. During the pouring process, manual vibration is used to ensure that the concrete in the chamfered area is dense. After the concrete in the chamfered area has initially set and reached a strength of more than 2.5 MPa, which can withstand the lateral pressure of the upper pouring and will not produce plastic deformation, the subsequent sidewall pouring can be carried out.

[0044] Side wall area pouring: Concrete is poured continuously in layers into the side wall area of ​​the pouring cavity, so that the side wall concrete and the bottom chamfered concrete are bonded together as a whole. During the pouring process, the deformation of the formwork can be monitored in real time by monitoring elements to ensure that the forming accuracy meets the specifications.

[0045] Demolding Operation: After the side wall concrete reaches the demolding strength, first release the mechanical locking pins, then control the first drive unit 41 to retract synchronously, driving the outer formwork 31 and inner formwork 32 to move laterally and detach from the concrete sidewall, completing the lateral demolding; then control the second drive unit 42 to extend synchronously, driving the load-bearing frame 1 and formwork assembly 3 to rise vertically as a whole, so that the bottom of the formwork completely detaches from the concrete chamfer and the surface of the subbase, avoiding scraping the formed concrete during longitudinal movement, thus completing the entire demolding process. After demolding, clean the surface of the formwork, grind it, and apply a release agent.

[0046] Transfer construction: The trolley is driven by the walking mechanism 2 to move longitudinally along the channel to the next pouring surface, and the above procedures are repeated for continuous construction.

[0047] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A full-section self-propelled hydraulic trolley, characterized in that, include: The load-bearing frame (1) is made of closed-section steel, including cross-connected transverse main beams (11) and top longitudinal connecting beams (12) to form a grid support structure at the top; multiple rows of vertical columns (13) are spaced along the transverse main beams (11); and longitudinal connecting beams (14) are connected to the vertical columns (13) in the same row along the trolley travel direction. The walking mechanism (2) installed at the bottom of the support frame (1) includes at least two sets of track units (21) and each track unit (21) is equipped with an independent drive device (22). The template assembly (3) includes an outer template (31) and an inner template (32) arranged opposite to each other, which together form a casting cavity; the template assembly (3) also includes a connecting beam (33), one end of which is fixedly connected to the sliding end of a sliding guide (16) provided on the longitudinal connecting beam (14); The drive assembly (4) includes a first drive unit (41) that is connected at both ends to the support frame (1) and the template assembly (3); and a second drive unit (42) installed at the connection between the support frame (1) and the walking mechanism (2). The vertical columns (13) are arranged in four rows at intervals along the length of the transverse main beam (11), with two rows on each side; the outer template (31) and the inner template (32) are arranged between the two rows of vertical columns (13) on the same side.

2. The full-section self-propelled hydraulic trolley according to claim 1, characterized in that, The load-bearing frame (1) further includes a first diagonal support rod (15) disposed between the transverse main beam (11) and the vertical column (13) and a second diagonal support rod (17) disposed between the transverse main beam (11) and the top longitudinal connecting beam (12).

3. The full-section self-propelled hydraulic trolley according to claim 1, characterized in that, The template assembly (3) includes a template panel (310), a plurality of secondary keels (320) fixed to the back of the template panel (310), and a main keel (330) fixed to the back of the secondary keels (320). The main keel (330) is fixedly connected to the end of the first drive unit (41).

4. The full-section self-propelled hydraulic trolley according to claim 3, characterized in that, Both the main keel (330) and the secondary keel (320) are made of closed-section steel.

5. The full-section self-propelled hydraulic trolley according to claim 1, characterized in that, The bottom edge of the template assembly (3) is provided with a flexible sealing element (340) for sealing the gap between the template and the constructed surface.

6. The full-section self-propelled hydraulic trolley according to claim 1, characterized in that, The bottom of the inner template (32) has an inclined surface for forming a chamfer.

7. The full-section self-propelled hydraulic trolley according to claim 1, characterized in that, Each of the connecting beams (33) is provided with a first driving unit (41) on its side; the first driving units (41) are distributed in multiple layers along the vertical direction to jointly adjust the moving position of the template assembly (3).

8. The full-section self-propelled hydraulic trolley according to claim 7, characterized in that: The trolley also includes a control unit, which is electrically connected to each of the drive components (4) and drive devices (22).

9. A method for pouring concrete in a rectangular channel cross-section, characterized in that, The method of using a full-section self-propelled hydraulic trolley as described in any one of claims 1-8 includes the following steps: Provide a pouring cavity corresponding to the design cross section of the section to be poured, the pouring cavity being formed by an outer template (31) and an inner template (32), and its bottom being sealed by a cushion layer; The molds are sealed at both longitudinal ends of the casting cavity; Concrete is poured into the chamfered areas at the bottom and sides of the pouring cavity, so that the concrete is formed into a chamfered structure at the bottom of the channel under the action of the inclined surface at the bottom of the inner template (32). After the concrete in the chamfered area reaches the predetermined strength, concrete is poured into the side wall area of ​​the pouring cavity, so that the concrete in the side wall area and the concrete in the chamfered area are combined into an integral structure. After the concrete reaches the demolding strength, the outer formwork (31) and inner formwork (32) are removed from the concrete sidewall and lifted off the top surface of the concrete.

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