Shield tunnel side box culvert cast-in-place construction trolley

Abstract

The invention relates to the technical field of trolleys, in particular to a shield tunnel side box culvert cast-in-place construction trolley which comprises a moving part and a lifting part, the moving part comprises a beam frame arranged in a shield tunnel in the front-back direction, and moving units are installed at the front end and the rear end of the beam frame through a front walking frame and a rear walking frame correspondingly; the formwork assembly is installed on the beam frame, and a die cavity is formed between the formwork assembly and the shield tunnel and used for pouring concrete; after the poured concrete is formed and demoulded, the moving part is used for driving the template assembly to move forwards and pouring the concrete into a subsequent mould cavity to form the tunnel side box culvert; the shield tunnel side box culvert cast-in-place construction trolley can solve the problem that manual operation cannot be conducted in a narrow space, the requirement for accurate space positioning of a formwork trolley under complex conditions can be met, the construction period can be shortened, and the operation efficiency and the concrete appearance quality can be effectively improved; and meanwhile, the trolley equipment is compatible with side box culverts of multiple specifications and can be quickly disassembled and assembled to adapt to multiple scenes, the reuse rate and reliability are improved, and the turnover utilization rate of the equipment can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of trolley, in particular to a kind of shield tunnel side box culvert cast-in-place construction trolley. BACKGROUND

[0002] With the continuous advancement of urban infrastructure construction, large-diameter shield tunnel is widely used in urban rail transit, cross-river crossing channel and other projects; in the construction of internal structure of shield tunnel, side box culvert as an important component, its construction quality and efficiency have a key influence on the smooth progress of the whole project and the performance in later period.

[0003] As a key process of cast-in-place side box culvert, its construction environment is often restricted by the narrow space around the shield tunnel, complex geological conditions and other multiple constraints; still rely on traditional artificial formwork technology, there are low construction efficiency (less than 6m per day), large cross operation interference, poor concrete appearance quality and other outstanding problems, which seriously restrict the construction speed of the whole tunnel; In view of this, we propose a kind of shield tunnel side box culvert cast-in-place construction trolley. SUMMARY

[0004] The purpose of the present application is to solve the problems mentioned in the background art, and to provide a kind of shield tunnel side box culvert cast-in-place construction trolley.

[0005] In order to solve the above technical problems, the present application adopts the following technical scheme: The shield tunnel side box culvert cast-in-place construction trolley of the embodiment comprises: A moving part comprising a beam frame arranged in the shield tunnel along the front-back direction, and a moving unit mounted on the front and rear ends of the beam frame through front and rear walking frames respectively; A formwork assembly is installed on the beam frame, and a mold cavity is formed between the formwork assembly and the shield tunnel for pouring concrete; After the pouring concrete is shaped and demolded, the moving part is used to drive the formwork assembly to move forward and pour concrete into the subsequent mold cavity to form a tunnel side box culvert.

[0006] Preferably, the formwork assembly comprises a plurality of formwork units which are detachably installed along the front-back direction; The formwork unit comprises a top mold and a bottom mold connected by an angle mold, and the bottom mold adopts a circular arc structure consistent with the curvature of the tunnel side box culvert wall.

[0007] Preferably, a plurality of uniformly distributed inclined struts are fixedly installed between the formwork assembly and the beam frame, and the inclined struts are used to provide support force to prevent the formwork assembly from exploding.

[0008] Preferably, the moving units are arranged at positions corresponding to the bottom mold.

[0009] Preferably, a plurality of intermediate support frames are fixedly installed on the beam frame, and a moving unit is installed at the bottom of the intermediate support frame.

[0010] Preferably, the moving unit comprises an installation cover seat, in which a moving wheel is rotatably installed by a power source.

[0011] Preferably, a driving motor is fixedly installed outside the installation cover seat as the power source, and a transmission chain is installed between the output shaft of the driving motor and the moving wheel.

[0012] Preferably, a sealing baffle is detachably installed at at least one end of the formwork assembly, and the sealing baffle is used for sealing the cast concrete.

[0013] Preferably, a reinforcing rib is installed on the wall of the top die, the corner die and the bottom die.

[0014] Compared with the prior art, the present application has the following beneficial effects: The shield tunnel side box culvert cast-in-place construction trolley can meet the requirements of accurate positioning of the formwork trolley in space under complex conditions, is beneficial to shortening the construction period, can effectively improve the operation efficiency and the appearance quality of concrete, and can improve the equipment turnover utilization rate. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings accompanying the specification of this application form a part hereof, serve to provide further understanding of the application, and together with the description of the preferred embodiments explain the application, and do not limit the application. In the drawings: Figure 1 is one of the overall structure schematic diagrams of the present application; Figure 2 is another of the overall structure schematic diagrams of the present application; Figure 3 is a side view of the overall structure of the present application; Figure 4 is a schematic diagram of the formwork assembly and the installation relationship of the formwork assembly; Figure 5 is a schematic diagram of the formwork unit of the present application; Figure 6 is a schematic diagram of the moving part of the present application; Figure 7 is a schematic diagram of the installation relationship of the beam frame of the present application; Figure 8 is a schematic diagram of the installation relationship of the front walking frame and the moving unit of the present application; Figure 9 is a schematic diagram of the installation relationship of the rear walking frame and the moving unit of the present application; Figure 10 The schematic diagram of the mobile unit of the present application.

[0016] The meanings of the respective reference numerals in the drawing are as follows: 1, front walking frame; 2, rear walking frame; 3, beam frame; 4, formwork assembly; 41, top form; 42, corner form; 43, bottom form; 44, reinforcing bar; 5, inclined strut; 6, blocking plate; 7, mobile unit; 71, mounting cover seat; 72, mobile wheel; 73, driving motor; 74, transmission chain; 8, intermediate support frame. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] Please refer to Figures 1-10 , the above technical solutions will be described in detail by the following embodiments: The formwork construction trolley for cast-in-place shield tunnel side box culvert in the present embodiment is suitable for pouring a side box culvert with about one fourth of a circular ring. Since the length is relatively long, the function of continuous pouring needs to be realized, and therefore the present application is provided with a mobile part. As shown in the structures in Figure 1 , Figure 2 , Figure 3 and Figure 7 , in order to maintain the structural reliability and stability during the movement, a beam frame 3 is arranged in the front-rear direction inside the shield tunnel, and a mobile unit 7 is detachably mounted at the front end of the beam frame 3 through a front walking frame 1 and at the rear end of the beam frame 3 through a rear walking frame 2. In order to provide mobile support for part of the beam frame 3, two intermediate support frames 8 are fixedly mounted on the beam frame 3 in the present embodiment, and the mobile unit 7 is mounted at the bottom of the intermediate support frame 8. That is, the mobile units 7 at the two ends and the bottom can provide mobile power and contact the tunnel foundation to realize a reliable moving process.

[0019] In order to form the cast-in-place tunnel side box culvert, the formwork assembly 4 needs to be fixedly mounted outside the beam frame 3 through the uniformly distributed inclined struts 5. The inclined struts 5 can provide support for the formwork assembly 4 to avoid mold explosion during the pouring and molding of the concrete. At the same time, in order to facilitate the repair and replacement of the single deformation damaged structure, the formwork assembly 4 is provided as a plurality of formwork units which are detachably mounted in the front-rear direction in the present embodiment.

[0020] As shown in Figure 5As shown in the structure, the template unit comprises a top die 41 and a bottom die 43 connected by an angle die 42, the bottom die 43 adopts a circular arc structure consistent with the curvature of the tunnel side box culvert wall, the template assembly 4 is installed between the shield tunnel, a mold cavity can be formed, the concrete is poured and formed in the mold cavity, and the moving part drives the template assembly 4 to move forward, and the mold cavity is continuously formed and the concrete is poured to finally form the tunnel side box culvert. The embodiment only shows that the outer end of the template assembly 4 is detachably installed with a blocking plate 6, and the blocking plate 6 needs to be installed at both ends for blocking the poured concrete when pouring the first section of the tunnel side box culvert. When pouring the rear, the front formed concrete replaces the blocking plate 6 to complete the blocking.

[0021] As Figures 8-10 As shown in the structure, the moving unit 7 in the application comprises a mounting cover seat 71 rotatably installed with a moving wheel 72, the mounting cover seat 71 is kept position fixed as a connecting piece, and a driving motor 73 is fixedly installed outside the mounting cover seat 71 as a power source, a transmission chain 74 is installed between the output shaft of the driving motor 73 and the moving wheel 72 to complete power transmission, and the device is moved forward.

[0022] It should be noted that if the present application involves directional indications (such as up, down, left, right, front, back, etc.) in the embodiments, the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0023] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A shield tunnel side box culvert cast-in-place construction trolley, characterized in that: The utility model relates to a tunnel construction device, including: a moving part including a beam frame (3) arranged in a shield tunnel along a front-rear direction, the beam frame (3) being provided with a moving unit (7) at the front and rear ends through a front walking frame (1) and a rear walking frame (2) respectively; a formwork assembly (4) mounted on the beam frame (3), the formwork assembly (4) and the shield tunnel forming a mold cavity for pouring concrete; after the concrete is poured and formed, the moving part is used to drive the formwork assembly (4) to move forward and pour concrete into a subsequent mold cavity to form a tunnel side box culvert.

2. The shield tunnel side box culvert cast-in-place construction trolley according to claim 1, characterized in that: The formwork assembly (4) includes a plurality of formwork units that are detachably mounted along the front-rear direction; The formwork unit includes a top mold (41) and a bottom mold (43) connected by an angle mold (42), and the bottom mold (43) has a circular arc structure consistent with the curvature of the tunnel side box culvert wall.

3. The shield tunnel side box culvert cast-in-place construction trolley according to claim 1, characterized in that: A plurality of uniformly distributed inclined struts (5) are fixedly installed between the formwork assembly (4) and the beam frame (3), and the inclined struts (5) are used to provide support force to prevent the formwork assembly (4) from exploding.

4. The shield tunnel side box culvert cast-in-place construction trolley according to claim 2, characterized in that: The moving unit (7) is arranged at a position corresponding to the bottom mold (43).

5. The shield tunnel side box culvert cast-in-place construction trolley according to claim 4, characterized in that: A plurality of intermediate support frames (8) are fixedly installed on the beam frame (3), and the intermediate support frames (8) are provided with moving units (7) at the bottom.

6. The cast-in-place construction trolley for shield tunnel edge box culvert according to claim 1, characterized in that: The moving unit (7) includes an installation cover seat (71) internally provided with a moving wheel (72) rotatably installed by a power source.

7. The shield tunnel side box culvert cast-in-place construction trolley according to claim 6, characterized in that: An external driving motor (73) is fixedly installed on the installation cover seat (71) as a power source, and a transmission chain (74) is arranged between the output shaft of the driving motor (73) and the moving wheel (72).

8. The cast-in-place construction trolley for shield tunnel edge box culvert according to claim 1, characterized in that: At least one end of the formwork assembly (4) is detachably provided with a sealing baffle (6), and the sealing baffle (6) is used to seal the poured concrete.

9. The cast-in-place construction trolley for shield tunnel edge box culvert according to claim 2, characterized in that: The top mold (41), the angle mold (42), and the bottom mold (43) are provided with reinforcing ribs (44) on the outer mold walls.

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