Concrete pouring device and construction method

Abstract

The invention relates to a concrete pouring device, which is used for pouring a narrow pouring gate of a well wall in a deep well foundation pit, and comprises a first chute, a second chute and a third chute, the supporting assembly is supported at the bottom of the first chute; the steel cable is horizontally arranged above the foundation pit; the tumbling barrel hanging group is hung on the steel cable, is hung in the foundation pit, can move on the steel cable and correspondingly receives concrete discharged from the lower end of the first chute; and one end of the second chute is rotationally connected to the bottom of the tumbling barrel hanging set, and the second chute is used for conveying concrete into the narrow pouring opening. Concrete is conveyed to the position above a foundation pit from a discharging port of a transport vehicle through the first chute, then the concrete is longitudinally conveyed into the foundation pit through the movable tumbling barrel hanging set, the concrete is further accurately conveyed into a narrow pouring opening through the second chute, the working efficiency is improved, the application range is wide, and the pouring quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of building construction, in particular to a concrete pouring device and a construction method. Background Art

[0002] With the rapid development of the construction industry, the number of tall, difficult and deep construction projects is also increasing.

[0003] The sewage relocation pipe jacking working well adopts the reverse well wall as the supporting structure of the pipe jacking working well. The pipe jacking working well is circular. The reverse well wall is excavated one section and the well wall is constructed one section. The well wall is trapezoidal, the concrete pouring port is narrow, and the concrete volume required for each section of the well wall is small. As the excavation depth increases, it is found that the use of sky pumps to pour concrete requires the legs to be fully opened, the on-site construction space is insufficient, and the price is expensive. It is necessary to change the pouring method and use a truck crane with a hopper for construction. The hopper is suspended in the air and the position swings back and forth for pouring. However, because the hopper outlet is narrow, the concrete cannot enter the pouring port, which affects the construction progress, increases the pouring time, and wastes seriously. In addition, workers need to operate under the hopper, which poses a great safety risk. Therefore, the pouring of narrow pouring ports with small volumes in deep foundation pits has the problems of requiring a lot of manpower, long pouring time, low work efficiency or high cost. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a concrete pouring device and a construction method to solve the problems that the existing concrete pouring with narrow pouring opening requires a lot of manpower, long pouring time, low efficiency or high cost.

[0005] The technical solution to achieve the above purpose is: a concrete pouring device, used for pouring concrete at a narrow pouring port of a well wall in a deep well foundation pit, comprising: a first chute, the first chute is tilted and arranged on the upper side of the foundation pit, the first chute is provided with a high end for inputting concrete and a low end for outputting concrete; a support assembly, the support assembly is supported at the bottom of the first chute, and the height of the support assembly is adjustable; a steel cable, the steel cable is horizontally arranged above the foundation pit, and the two ends of the steel cable are respectively connected to the top of the well wall on both sides of the foundation pit; a string tube suspension group, the string tube The suspension group is hung on the steel cable, and the string barrel suspension group is suspended in the foundation pit. The string barrel suspension group can move on the steel cable and be adjusted to below the lower end of the first chute to receive the concrete discharged from the lower end of the first chute; the second chute is arranged in the foundation pit, one end of the second chute is rotatably connected to the bottom of the string barrel suspension group to receive the concrete output from below the string barrel suspension group, and the other end is connected to the narrow pouring port of the well wall to transport concrete into the narrow pouring port.

[0006] In a concrete pouring device of the present invention, concrete is transferred from a discharge port of a transport vehicle to above a foundation pit through a first chute, and then the concrete is longitudinally transported to the inside of the foundation pit through a movable string tube suspension group, and further the concrete is accurately input into a narrow pouring port through a second chute, thereby improving work efficiency, having a wide range of applications, being able to effectively reduce costs, and ensuring pouring quality.

[0007] A further improvement of the concrete pouring device of the present invention is that an embedded part is provided on the top of the well wall, and the embedded part is connected to the end of the steel cable.

[0008] A further improvement of a concrete pouring device of the present invention is that the support assembly includes: a first support member, the first support member is supported between the first chute and the ground; and a second support member, the second support member is supported between the first chute and the top surface of the shaft wall.

[0009] A further improvement of the concrete pouring device of the present invention is that a limiting structure is provided on the steel cable, and the limiting structure can position the string tube suspension group.

[0010] A further improvement of the concrete pouring device of the present invention is that the string tube suspension group is formed by vertically connecting a plurality of string tubes in series, and the string tubes adjacent to each other can be stacked up and down.

[0011] A further improvement of the concrete pouring device of the present invention is that a telescopic adjustment structure is provided in the string tube suspension group, and the telescopic adjustment structure is connected to the string tube at the bottom to adjust the up and down movement of the string tube at the bottom and drive the height adjustment of the second chute.

[0012] A further improvement of the concrete pouring device of the present invention is that a hopper is provided at the upper end of the string tube located at the top in the string tube hanging group.

[0013] A further improvement of the concrete pouring device of the present invention is that the string tube suspension group is provided with: two traction ropes, the two traction ropes are arranged on both sides of the string tube suspension group, the two traction ropes extend in opposite directions to the ground on both sides, and the two traction ropes can respectively pull the string tube suspension group to move left and right.

[0014] A further improvement of the concrete pouring device of the present invention is that a baffle is provided around the lower end of the first chute.

[0015] A construction method for pouring concrete at a narrow pouring opening of a well wall in a deep well foundation pit using a concrete pouring device, comprising the following steps: connecting the two ends of a steel cable to the embedded parts provided at the top of the well wall respectively; assembling a string tube suspension group, and connecting a hopper, a traction rope and a second chute to the string tube suspension group; installing a first chute, adjusting the plane position and height of the first chute, and supporting the first chute by providing a support assembly; suspending the hopper, the string tube suspension group and the second chute on the steel cable; moving the hopper, the string tube suspension group and the second chute to below the lower end of the first chute by the traction rope, and transferring the second chute to the corresponding narrow pouring opening; after determining the position, fixing both of the traction ropes to the corresponding embedded parts to transport and pour concrete; pouring concrete on the well wall in the deep well foundation pit in layers multiple times according to the above steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a structural schematic diagram of a concrete pouring device.

[0017] Figure 2 The present invention is a top view of a concrete pouring device.

[0018] Figure 3 It is a connection schematic diagram of the second chute of the present invention.

[0019] Figure 4 It is a connection schematic diagram of the hopper of the present invention.

[0020] Figure 5 It is a connection schematic diagram of the baffle of the present invention.

[0021] Figure 6 The present invention is a flow chart of a construction method for pouring concrete at a narrow pouring opening of a well wall in a deep well foundation pit using a concrete pouring device.

[0022] In the figure: 10, first chute; 101, baffle; 11, support assembly; 111, first support member; 112, second support member; 12, steel cable; 13, string tube suspension group; 131, string tube; 14, second chute; 15, embedded parts; 16, limiting structure; 17, hinge; 18, hopper; 19, traction rope; 20, foundation pit; 21, shaft wall; 22, narrow casting opening; 30, transport vehicle. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] See also Figure 1 and Figure 2 , Figure 1 The structure diagram of a concrete pouring device of the present invention is shown. Figure 2The present invention provides a concrete pouring device for pouring concrete at a narrow pouring opening 22 of a well wall 21 in a deep well foundation pit 20, comprising: a first chute 10, the first chute 10 is obliquely arranged on the upper side of the foundation pit 20, and the first chute 10 is provided with a high end for inputting concrete and a low end for outputting concrete.

[0025] The first chute 10 has a high end as a feed port connected to a discharge port of a transport vehicle 30 for externally transporting concrete, while the bottom end of the first chute 10 extends into the foundation pit 20 as a discharge port, facilitating the horizontal transfer of concrete.

[0026] The support assembly 11 is supported at the bottom of the first chute 10 , and the height of the support assembly 11 is adjustable.

[0027] The support assembly 11 provides support force for the first chute 10 , and the height of the support assembly 11 is adjustable to correspond to different inclination angles of the first chute 10 , and has wide applicability.

[0028] The steel cable 12 is horizontally arranged above the foundation pit 20 , and two ends of the steel cable 12 are respectively connected to the top of the well wall 21 on both sides of the foundation pit 20 .

[0029] The foundation pit 20 is configured as a circular foundation pit 20, the steel cable 12 passes through the center of the foundation pit 20, and the length of the steel cable 12 is selected according to the size of the foundation pit 20, and no specific limitation is made here.

[0030] In this embodiment, two steel cables 12 may be provided, and the two steel cables 12 may be arranged side by side, so as to disperse the load force to be borne and ensure the stability of the structure. In other embodiments, the number of steel cables 12 is not specifically limited.

[0031] The string tube suspension group 13 is hung on the steel cable 12. The string tube suspension group 13 is suspended in the foundation pit 20. The string tube suspension group 13 can move on the steel cable 12 and be adjusted to below the lower end of the first chute 10 to receive the concrete discharged from the lower end of the first chute 10.

[0032] Among them, the string tube suspension group 13 can be adjusted to the position of the lower end output port of the first chute 10 to receive the concrete just below the output port. The string tube suspension group 13 facilitates the transfer and transmission of concrete in the vertical direction and avoids the segregation of concrete.

[0033] The second chute 14 is arranged in the foundation pit 20. One end of the second chute 14 is rotatably connected to the bottom of the string tube suspension group 13 for receiving the concrete output from the bottom of the string tube suspension group 13, and the other end is connected to the narrow pouring port 22 of the well wall 21 for conveying concrete into the narrow pouring port 22.

[0034] Among them, one end of the second chute 14 and the string tube suspension group 13 is set as the high end, and the end connected with the narrow pouring port 22 of the well wall 21 is set as the low end, which is convenient for the transportation of concrete.

[0035] See also Figure 2 , showing a top view of a concrete pouring device of the present invention. The present invention provides a concrete pouring device, wherein an embedded part 15 is provided on the top of a well wall 21 , and the embedded part 15 is connected to the end of a steel cable 12 .

[0036] Among them, two symmetrical embedded parts 15 are arranged on the upper end surface of the well wall 21, and the embedded parts 15 expose round steel rings on the upper end surface of the well wall 21. The two ends of the steel cable 12 are respectively connected and fixed to the round steel rings of the keel, and the steel cable 12 can maintain a horizontal state.

[0037] See also Figure 1 , showing a structural schematic diagram of a concrete pouring device of the present invention. The present invention provides a concrete pouring device, wherein a support assembly 11 comprises: a first support member 111, and the first support member 111 is supported between the first chute 10 and the ground.

[0038] The first support member 111 is telescopic and height-adjustable.

[0039] The second support member 112 is supported between the first chute 10 and the top surface of the well wall 21 .

[0040] The first support member 111 and the second support member 112 are arranged in parallel, the height of the second support member 112 is smaller than the height of the first support member 111 , and the heights of the first support member 111 and the second support member 112 need to be adjusted synchronously.

[0041] See also Figure 2 , showing a top view of a concrete pouring device of the present invention. The present invention provides a concrete pouring device, wherein a limit structure 16 is provided on the steel cable 12, and the limit structure 16 can position the string tube suspension group 13

[0042] Among them, the string tube suspension group 13 can be directly suspended below the steel cable 12 through a suspension rope, and the limiting structure 16 is clamped at the junction of the suspension rope and the steel cable 12 to fix the position of the string tube suspension group 13 to prevent the string tube suspension group 13 from deviating and affecting the transportation of concrete. In this embodiment, the string tube suspension group 13 can also be formed by opening a hole at the upper end of the hopper 18 to allow the steel cable 12 to pass through the hole of the hopper 18. The hopper 18 and the string tube suspension group 13 connected to the bottom of the hopper 18 can slide on the steel cable 12. The limiting structure 16 is clamped on the outside of the hopper 18 to limit the movement of the hopper 18, that is, the hopper 18 and the string tube suspension group 13 are positioned. It can be selected according to actual needs and is not limited here, which further improves the construction efficiency.

[0043] See also Figure 1 , showing a structural schematic diagram of a concrete pouring device of the present invention. The present invention provides a concrete pouring device, wherein a string tube suspension group 13 is formed by vertically connecting a plurality of string tubes 131, and the string tubes 131 adjacent to each other can be stacked up and down.

[0044] Among them, the string tube at the bottom of the string tube hanging group 13 is connected to the second chute 14 by a hinge 17, which facilitates the second chute 14 to rotate 360° to adjust the output port at the lower end to connect with the narrow casting port 22.

[0045] In this embodiment, the number of string tubes 131 is set according to actual construction requirements and is not specifically limited here.

[0046] The present invention provides a concrete pouring device, wherein a telescopic adjustment structure is provided in a string tube suspension group 13, and the telescopic adjustment structure is connected to a string tube 131 at the bottom, so as to adjust the string tube 131 at the bottom to move up and down, and drive the height adjustment of the second chute 14.

[0047] The bottom string tube 131 moves upward to overlap with the string tube 131 directly above it, and further approaches and overlaps with the previous string tube 131. The opposite is true when it moves downward. The bottom string tube 131 only changes the upper and lower heights, driving the height of the second chute 14 to change.

[0048] See also Figure 4 , showing a schematic diagram of the connection of the hopper of the present invention. The present invention provides a concrete pouring device, wherein a hopper 18 is provided at the upper end of a string tube 131 located at the top of a string tube hanging group 13.

[0049] The hopper 18 is wide at the top and narrow at the bottom. The upper end of the hopper 18 is wide to receive concrete. The lower end of the hopper 18 is docked with the upper end of the string tube 131 to facilitate the transportation of concrete.

[0050] See also Figure 2 , showing a top view of a concrete pouring device of the present invention. The present invention provides a concrete pouring device, wherein the string tube suspension group 13 is provided with: two traction ropes 19, the two traction ropes 19 are arranged on both sides of the string tube suspension group 13, the two traction ropes 19 extend in opposite directions to the ground on both sides, and the two traction ropes 19 can respectively pull the string tube suspension group 13 to move left and right.

[0051] Among them, two traction ropes 19 are symmetrically arranged on both sides of the string barrel at the top of the string barrel suspension group 13, and the two traction ropes 19 exert force on the string barrel suspension group 13 in opposite directions, and the two traction ropes 19 are also connected to the side wall of the hopper 18. After the position of the hopper 18 and the string barrel suspension group 13 is determined, the two traction ropes 19 need to be connected to the embedded parts 15 to fix the position respectively to prevent the position of the string barrel suspension group 13 and the hopper 18 from shifting and affecting the transmission of concrete.

[0052] See also Figure 5 , showing a schematic diagram of the connection of the baffle of the present invention. The present invention provides a concrete pouring device, wherein a baffle 101 is provided around the lower end of the first chute 10 .

[0053] The baffle 101 is formed in a ring shape to prevent the concrete flow in the first chute 10 from being too large and overflowing from the outlet, thereby preventing the concrete from falling and injuring the construction workers.

[0054] See also Figure 6 , showing a flow chart of a construction method of pouring concrete at a narrow pouring opening of a well wall in a deep well foundation pit using a concrete pouring device. The present invention provides a construction method of pouring concrete at a narrow pouring opening 22 of a well wall 21 in a deep well foundation pit 20 using a concrete pouring device, comprising the following steps:

[0055] Execute step S210: connect the two ends of the steel cable 12 to the embedded parts 15 provided on the top of the well wall 21 respectively.

[0056] The steel cable 12 is arranged to span the top of the foundation pit 20 , and the steel cable 12 passes through the center point of the foundation pit 20 . Then, step S220 is executed.

[0057] Execute step S220: assemble the string tube suspension group 13, and connect the hopper 18, the traction rope 19 and the second chute 14 to the string tube suspension group 13.

[0058] Among them, the narrow port of the hopper 18 is connected to the upper port of the string tube suspension group 13, the second chute 14 is connected to the lower port of the string tube suspension group 13 by the hinge 17, and the traction rope 19 is connected to both sides of the string tube suspension group 13 respectively, and then, step S230 is executed.

[0059] Execute step S230: install the first chute 10 , adjust the plane position and height of the first chute 10 , and support the first chute 10 by setting a support assembly 11 .

[0060] The high end of the first chute 10 is adjusted to be close to the bottom of the output port of the transport vehicle 30 to receive the concrete, and then step S240 is executed.

[0061] Execute step S240: suspend the hopper 18, the string tube suspension group 13 and the second chute 14 on the steel cable 12.

[0062] The hopper 18 is slidably mounted on the steel cable 12 , and the hopper 18 can drive the string tube suspension group 13 and the second chute 14 connected below to perform horizontal displacement. Then, step S250 is executed.

[0063] Execute step S250: move the hopper 18, the string tube suspension group 13 and the second chute 14 to below the lower end of the first chute 10 through the traction rope 19, and transfer the second chute 14 to the corresponding narrow pouring port 22.

[0064] The moving direction of the traction rope 19 is selected according to the position of the first chute 10, and the upper port of the hopper 18 is adjusted to correspond to the discharge port at the lower end of the first chute 10 to facilitate the transfer of concrete. Then, step S260 is executed.

[0065] Execute step S260: After the position is determined, the two traction ropes 19 are fixed to the corresponding embedded parts 15 to transport and pour concrete.

[0066] Among them, the traction rope 19 is fixed to prevent the string tube suspension group 13 from shifting, and it is also necessary to fix the suspension rope with a limiting structure 16 at the junction of the suspension rope and the steel cable 12 to further limit the string tube suspension group 13. Then, execute step S270.

[0067] Execute step S270: pour concrete in layers multiple times on the well wall 21 in the deep well foundation pit 20 according to the above steps.

[0068] Among them, the shaft wall 21 is formed by splicing multiple sections, and needs to be poured in layers multiple times from top to bottom. After the concrete pouring is completed, the concrete needs to be vibrated according to regulations to ensure the quality of the concrete pouring structure.

[0069] The present invention is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various changes to the present invention according to the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be the scope defined by the attached claims.

Claims

1. A concrete pouring device for pouring concrete into a narrow pouring opening of a well wall in a deep well foundation pit, characterized in that: include: A first chute, the first chute is obliquely arranged on the upper side of the foundation pit, and the first chute is provided with a high end for inputting concrete and a low end for outputting concrete; A support assembly, the support assembly is supported on the bottom of the first chute, and the height of the support assembly is adjustable; A steel cable, wherein the steel cable is horizontally arranged above the foundation pit, and both ends of the steel cable are respectively connected to the top of the well wall on both sides of the foundation pit; A string barrel hanging group, the string barrel hanging group is hung on the steel cable, the string barrel hanging group is suspended in the foundation pit, the string barrel hanging group can move on the steel cable, and is adjusted to below the lower end of the first chute, corresponding to receiving the concrete discharged from the lower end of the first chute; The second chute is arranged in the foundation pit, one end of the second chute is rotatably connected to the bottom of the string tube suspension group, for receiving the concrete output from the bottom of the string tube suspension group, and the other end is connected to the narrow pouring port of the well wall, for conveying concrete into the narrow pouring port.

2. A concrete pouring device according to claim 1, characterized in that: An embedded part is provided on the top of the well wall, and the embedded part is connected to the end of the steel cable.

3. A concrete pouring device according to claim 1, characterized in that: The support assembly comprises: a first support member, the first support member being supported between the first chute and the ground; A second support member is supported between the first chute and the top surface of the well wall.

4. A concrete pouring device according to claim 1, characterized in that: The steel cable is provided with a limiting structure, and the limiting structure can position the string tube suspension group.

5. A concrete pouring device according to claim 1, characterized in that: The string tube suspension group is formed by vertically connecting a plurality of string tubes in series, and the string tubes adjacent to each other can be stacked up and down.

6. A concrete pouring device according to claim 5, characterized in that: A telescopic adjustment structure is provided in the string tube suspension group, and the telescopic adjustment structure is connected to the string tube at the bottom to adjust the string tube at the bottom to move up and down, and drive the height adjustment of the second chute.

7. A concrete pouring device according to claim 5, characterized in that: A hopper is provided at the upper end of the string tube located at the top of the string tube hanging group.

8. A concrete pouring device according to claim 7, characterized in that: The string tube suspension group is provided with: Two traction ropes are arranged on both sides of the string tube suspension group, and the two traction ropes extend in opposite directions to the ground on both sides. The two traction ropes can respectively pull the string tube suspension group to move left and right.

9. A concrete pouring device according to claim 1, characterized in that: The lower end of the first chute is provided with a baffle around it.

10. A construction method for pouring concrete at a narrow pouring opening of a well wall in a deep well foundation pit using a concrete pouring device, characterized in that: The steps include: Connect the two ends of the steel cable to the embedded parts set on the top of the well wall respectively; Assemble the string barrel suspension group, and connect the hopper, the traction rope and the second chute to the string barrel suspension group; Installing a first chute, adjusting the plane position and height of the first chute, and supporting the first chute by providing a support assembly; Suspending the hopper, the string tube suspension group and the second chute on the steel cable; Move the hopper, the string tube suspension group and the second chute to below the lower end of the first chute by the traction rope, and transfer the second chute to the corresponding narrow pouring port; After the position is determined, the two traction ropes are fixed to the corresponding embedded parts to transport and pour concrete; According to the above steps, the well wall in the deep well foundation pit is poured with concrete in layers for multiple times.

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