Concrete blanking construction structure for large-section long inclined shaft

Abstract

The utility model discloses a large-section long inclined shaft concrete blanking construction structure which comprises a steel structure frame arranged on the cross section of an inclined shaft and an adit, a blanking hopper arranged on the steel structure frame, a blanking pipeline communicated with the blanking hopper and arranged on the side wall of the inclined shaft, and a collecting hopper communicated with the blanking pipeline and arranged on a slip form operation platform. A stirring paddle is arranged in the collecting hopper, at least two chutes are formed in the bottom of the collecting hopper, and the discharging pipeline comprises a first conveying hose connected to the discharging hopper, a hard pipeline communicated with the first conveying hose and arranged on the side wall of the inclined shaft and a second conveying hose connected between the hard pipeline and the collecting hopper. The hard pipeline comprises a plurality of pipeline sections, and buffers are arranged at the two ends of each pipeline section. According to the concrete discharging device, the blocking rate of concrete in a conveying pipeline can be reduced, the construction efficiency of concrete discharging can be improved, the probability that constructors need to dredge the pipeline is reduced, and the problem of segregation of the concrete in the discharging process can be solved.

Description

Technical Field

[0001] This utility model belongs to the field of inclined shaft construction technology, specifically relating to a concrete material feeding construction structure for a long inclined shaft with a large cross-section. Background Technology

[0002] In the construction of inclined shafts in pumped storage power stations, the concrete lining construction of inclined shafts is a technically complex, difficult, and costly project. This is especially true for the concrete feeding process in long, large-section inclined shafts, where the slipform structure is complex, installation is difficult, and the hydraulic lifting system is massive. Concrete is fed using a chute, but due to the significant height difference in the long inclined shaft, concrete segregation occurs during the feeding process. This segregation easily leads to blockages in the conveying pipelines, requiring frequent unblocking by on-site personnel. This pipeline unblocking process not only extends the construction period but also threatens the safety of the construction workers. Therefore, a concrete feeding construction structure for long, large-section inclined shafts should be provided. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a large-section long inclined shaft concrete feeding construction structure to address the shortcomings of the prior art. The structure is simple and reasonably designed, which can reduce the blockage rate of concrete in the conveying pipeline, improve the construction efficiency of concrete feeding, reduce the probability of construction personnel needing to clear the pipeline, and solve the problem of concrete segregation during the feeding process.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a large-section long inclined shaft concrete feeding construction structure, characterized in that: it includes a steel structure frame set at the intersection of the inclined shaft and the horizontal tunnel, a feeding hopper set on the steel structure frame, a feeding pipe connected to the feeding hopper and set on the side wall of the inclined shaft, and a collection hopper connected to the feeding pipe and set on the slipform operation platform. The collection hopper is equipped with a stirring paddle inside, and at least two chutes are set at the bottom of the collection hopper. The feeding pipe includes a first conveying hose connected to the feeding hopper, a rigid pipe connected to the first conveying hose and set on the side wall of the inclined shaft, and a second conveying hose connected between the rigid pipe and the collection hopper. The rigid pipe includes multiple pipe sections, and buffers are set at both ends of each pipe section.

[0005] The above-mentioned large-section long inclined shaft concrete feeding construction structure is characterized in that: the buffer is installed on the side wall of the inclined shaft through a support base, the support base including a base that cooperates with the side wall of the inclined shaft and a U-shaped pressure plate installed on the base and used to fit on the buffer.

[0006] The above-mentioned large-section long inclined shaft concrete pouring construction structure is characterized in that: a slipform track is provided on the side wall of the inclined shaft, and a traveling wheel that cooperates with the slipform track is provided on the slipform frame, and a concrete lining pouring cavity is formed between the slipform steel panel and the side wall of the inclined shaft.

[0007] This utility model has the following advantages compared with the prior art:

[0008] 1. This utility model sets up a steel structure frame at the intersection of the inclined shaft and the horizontal tunnel, and sets up a hopper on the steel structure frame. In actual use, the steel structure frame can support the concrete mixer truck, which makes it easy to pour the concrete from the concrete mixer truck into the hopper, without the need to use a material transport trolley to transfer the concrete.

[0009] 2. This utility model provides a discharge pipe connected to the discharge hopper on the side wall of the inclined shaft. The discharge pipe includes a first conveying hose, a rigid pipe, a second conveying hose, and multiple buffers. In actual use, the multiple buffers can reduce the blockage rate of concrete in the conveying pipe, improve the construction efficiency of concrete discharge, reduce the probability of construction personnel needing to clear the pipe, and ensure the safety of construction personnel.

[0010] 3. This utility model provides a material collection hopper connected to the discharge pipe. The material collection hopper is set on the slipform operating platform and is equipped with a stirring paddle inside. The bottom of the material collection hopper is provided with at least two chutes. In actual use, the concrete entering the material collection hopper through the discharge pipe can solve the problem of segregation of concrete during the discharge process under the action of the stirring paddle. Afterwards, the uniformly mixed concrete can be discharged into the concrete lining pouring cavity through at least two chutes.

[0011] 4. This utility model has a simple structure, reasonable design, is easy to construct, and is easy to promote and apply.

[0012] In summary, this utility model has a simple structure and reasonable design, which can reduce the blockage rate of concrete in the conveying pipeline, improve the construction efficiency of concrete feeding, reduce the probability of construction personnel needing to unclog the pipeline, and solve the problem of segregation of concrete during the feeding process.

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram showing the connection relationship between the buffer, support base, sliding frame, and sliding track of this utility model.

[0016] Description of the accompanying drawings:

[0017] 1—Steel structure frame; 2—Feeding hopper; 3—Slipform track;

[0018] 4-1—Slipform frame; 4-2—Slipform operating platform; 4-3—Walking wheels;

[0019] 5—Slipform steel panel; 6—Concrete lining; 7-1—Inclined shaft;

[0020] 7-2—Intersection of inclined shaft and horizontal tunnel; 8—Concrete mixer; 9—First conveying hose;

[0021] 10—Rigid pipe; 11—Buffer; 12—Second delivery hose;

[0022] 13—Collection hopper; 14—Chutter; 15—Support base;

[0023] 15-1—Base; 15-2—U-shaped pressure plate. Detailed Implementation

[0024] like Figure 1 As shown, this utility model includes a steel structure frame 1 installed at the intersection of the inclined shaft and the horizontal tunnel 7-2, a feeding hopper 2 installed on the steel structure frame 1, a feeding pipe connected to the feeding hopper 2 and installed on the side wall of the inclined shaft 7-1, and a collecting hopper 13 connected to the feeding pipe and installed on the sliding formwork operating platform 4-2. The collecting hopper 13 is equipped with a stirring paddle inside, and at least two chutes 14 are provided at the bottom of the collecting hopper 13. The feeding pipe includes a first conveying hose 9 connected to the feeding hopper 2, a rigid pipe 10 connected to the first conveying hose 9 and installed on the side wall of the inclined shaft 7-1, and a second conveying hose 12 connected between the rigid pipe 10 and the collecting hopper 13. The rigid pipe 10 includes multiple pipe sections, and buffers 11 are provided at both ends of each pipe section.

[0025] In this embodiment, a steel structure frame 1 is set at the intersection of the inclined shaft and the horizontal tunnel 7-2, and a hopper 2 is set on the steel structure frame 1. In actual use, the steel structure frame 1 can support the concrete mixer truck 8, which makes it easy to pour the concrete in the concrete mixer truck 8 into the hopper 2, without the need to use a material transport trolley to transfer the concrete.

[0026] In this embodiment, a discharge pipe connected to the discharge hopper 2 is provided on the side wall of the inclined shaft 7-1. The discharge pipe includes a first conveying hose 9, a rigid pipe 10, a second conveying hose 12, and multiple buffers 11. In actual use, the multiple buffers 11 can reduce the blockage rate of concrete in the conveying pipe, improve the construction efficiency of concrete discharge, reduce the probability of construction personnel needing to clear the pipe, and ensure the safety of construction personnel.

[0027] In this embodiment, the buffer 11 may be the buffer disclosed in Chinese Patent No. ZL202122211419.X, entitled "A Shock Shaft Feeding Buffer and a Shock Shaft Feeding System".

[0028] In this embodiment, a hopper 13 connected to the discharge pipe is provided. The hopper 13 is set on the sliding formwork operating platform 4-2, and a stirring paddle is provided inside the hopper 13. At least two chutes 14 are provided at the bottom of the hopper 13. In actual use, the concrete entering the hopper 13 through the discharge pipe can solve the problem of segregation of concrete during the discharge process under the action of the stirring paddle. Then, the uniformly mixed concrete can be discharged into the concrete lining pouring cavity through at least two chutes 14.

[0029] In this embodiment, there are two chutes 14, and both chutes 14 are semi-circular chutes.

[0030] like Figure 2 As shown, in this embodiment, the buffer 11 is mounted on the side wall of the inclined shaft 7-1 via a support base 15. The support base 15 includes a base 15-1 that mates with the side wall of the inclined shaft 7-1 and a U-shaped pressure plate 15-2 mounted on the base 15-1 and used to fit onto the buffer 11.

[0031] In this embodiment, the bottom surface of the base 15-1 is an arc-shaped surface that matches the side wall of the inclined well 7-1, and a weight-reducing groove is provided in the middle of the U-shaped pressure plate 15-2.

[0032] like Figure 1 and Figure 2 As shown, in this embodiment, a sliding formwork track 3 is provided on the side wall of the inclined shaft 7-1, and a traveling wheel 4-3 that cooperates with the sliding formwork track 3 is provided on the sliding formwork frame 4-1. A concrete lining pouring cavity is formed between the sliding formwork steel panel 5 and the side wall of the inclined shaft 7-1.

[0033] like Figure 1 and Figure 2As shown, in actual use, the concrete mixer truck 8 can transport concrete to the intersection of the inclined shaft and the horizontal tunnel 7-2. After the concrete in the concrete mixer truck 8 is poured into the discharge hopper 2, the concrete can sequentially enter the collection hopper 13 along the first conveying hose 9, the rigid pipe 10 and the second conveying hose 12. During this process, multiple buffers 11 can reduce the blockage rate of concrete in the conveying pipeline. After the layered concrete is poured, the slipform frame 4-1 is moved upward along the slipform track 3 so that the slipform steel panel 5 and the side wall of the inclined shaft 7-1 form the concrete lining pouring cavity for the next pouring layer, and the next layer of concrete is discharged.

[0034] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A concrete feeding and construction structure for a large-section long inclined shaft, characterized in that: The system includes a steel frame (1) located at the intersection of the inclined shaft and the horizontal tunnel (7-2), a hopper (2) located on the steel frame (1), a discharge pipe connected to the hopper (2) and located on the side wall of the inclined shaft (7-1), and a collection hopper (13) connected to the discharge pipe and located on the sliding formwork operating platform (4-2). The collection hopper (13) is equipped with an agitator inside and at least two chutes (14) are provided at the bottom of the collection hopper (13). The discharge pipe includes a first conveying hose (9) connected to the hopper (2), a rigid pipe (10) connected to the first conveying hose (9) and located on the side wall of the inclined shaft (7-1), and a second conveying hose (12) connected between the rigid pipe (10) and the collection hopper (13). The rigid pipe (10) includes multiple pipe sections, and buffers (11) are provided at both ends of each pipe section.

2. The concrete feeding and construction structure for a large-section long inclined shaft according to claim 1, characterized in that: The buffer (11) is mounted on the side wall of the inclined shaft (7-1) via a support base (15). The support base (15) includes a base (15-1) that mates with the side wall of the inclined shaft (7-1) and a U-shaped pressure plate (15-2) mounted on the base (15-1) and used to fit onto the buffer (11).

3. The concrete feeding and construction structure for a large-section long inclined shaft according to claim 1, characterized in that: A sliding formwork track (3) is provided on the side wall of the inclined shaft (7-1), and a traveling wheel (4-3) that cooperates with the sliding formwork track (3) is provided on the sliding formwork frame (4-1). A concrete lining pouring cavity is formed between the sliding formwork steel panel (5) and the side wall of the inclined shaft (7-1).

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