Concrete pumping device and process

Abstract

The application discloses a top-punching concrete pumping device and process, and belongs to the technical field of engineering construction. The device comprises a concrete pump, a concrete pump pipe, a capsule valve, an air compressor and a first valve. The concrete pump has a concrete pump port. One end of the concrete pump pipe is connected with the concrete pump port. The other end of the concrete pump pipe is provided with a vault pumping port. The capsule valve is arranged on the pump pipe and close to the vault pumping port. The capsule valve is provided with an air inlet. The air compressor is connected with the air inlet of the capsule valve through a high-pressure air pipe. The first valve is arranged on the high-pressure air pipe and close to the air inlet of the capsule valve. The top-punching concrete pumping device and process provided by the application can control the inflation and deflation of the capsule valve, ensure that the concrete pumped to the vault will not fall, avoid the occurrence of the hollow defect of the vault, and ensure the construction quality without taking remedial measures such as punching and grouting.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of engineering construction, and particularly relates to a top-punching concrete pumping device and process. BACKGROUND

[0002] In tunnel lining construction, due to the special position of the vault, when the concrete pump pumps concrete to the vault part for vault pouring, the concrete pumped to the vault will fall back to the concrete delivery pump pipe due to the action of gravity, so that a cavity will appear in the vault. The cavity defect will cause uneven stress on the lining, deteriorate the lining stress condition, change the lining design stress state, and the actual stress on the lining may exceed the design stress range. Under the influence of external load and other adverse factors, the probability of tunnel lining damage will increase.

[0003] At present, the remedial measures for the cavity defect are punching and grouting, that is, after the strength of the lining concrete reaches the set strength, a grouting pipe is embedded by punching, and then grouting is performed. However, this remedial method cannot fundamentally avoid the cavity defect, and punching is easy to punch through the waterproof board to cause concrete leakage in the later period, the water-cement ratio of the injected pure cement slurry is large, and the shrinkage in the later period will still cause a cavity. Secondary grouting not only slows down the construction process, but also is difficult to combine with the lining concrete to form a whole, and the construction quality is difficult to guarantee.

[0004] Therefore, a top-punching concrete pumping device and process are needed, which can ensure that the concrete pumped to the vault will not fall by setting a capsule valve and controlling inflation and deflation of the capsule valve, thereby avoiding the cavity defect in the vault, without the need for remedial measures such as punching and grouting, and ensuring the construction quality. SUMMARY

[0005] In view of the deficiencies in the related art, the purpose of the present application is to provide a top-punching concrete pumping device and process to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A top-punching concrete pumping device, comprising:

[0008] a concrete pump, the concrete pump having a concrete pump port;

[0009] a concrete pump pipe, one end of the concrete pump pipe being connected with the concrete pump port, and the other end of the concrete pump pipe being provided with a vault pumping port;

[0010] a capsule valve, the capsule valve being arranged on the concrete pump pipe and being close to the vault pumping port, the capsule valve having a capsule valve air inlet;

[0011] an air compressor, the air compressor being connected with the capsule valve air inlet through a high-pressure air pipe;

[0012] A first valve is arranged on the high-pressure air pipe and close to the capsule valve air inlet.

[0013] In some embodiments, the capsule valve comprises:

[0014] A valve housing is in communication with the concrete pump pipe, so that the concrete in the concrete pump pipe is delivered to the crown pumping port through the valve housing;

[0015] A rubber capsule is arranged in the valve housing, the capsule valve air inlet is arranged on the rubber capsule, and the capsule valve air outlet is also arranged on the rubber capsule.

[0016] In some embodiments, the top-pushing concrete pumping device further comprises a second valve connected to the capsule valve air outlet through a pipeline.

[0017] In some embodiments, the top-pushing concrete pumping device further comprises a control system electrically connected to the concrete pump, the air compressor, and the second valve.

[0018] In some embodiments, the control system comprises:

[0019] A concrete pump controller is used to control the opening or closing of the concrete pump.

[0020] An air compressor controller is used to control the opening or closing of the air compressor.

[0021] A second valve controller is used to control the opening or closing of the second valve.

[0022] In some embodiments, the control system further comprises a time delay, which is electrically connected to the concrete pump controller and the second valve controller, and is used to start timing when the concrete pump controller controls the opening of the concrete pump. When the timing reaches a set value, the time delay outputs an opening signal to the second valve controller to control the opening of the second valve.

[0023] In some embodiments, the top-pushing concrete pumping device further comprises a discharge sensor, which is signal connected to the concrete pump controller and the air compressor controller. The discharge sensor is arranged at the reserved air outlet of the pouring formwork. When the discharge sensor detects that the pouring formwork reserved air outlet discharges concrete, it outputs a discharge signal to the concrete pump controller and the air compressor controller. When the concrete pump controller receives the discharge signal, it controls the closing of the concrete pump. When the air compressor controller receives the discharge signal, it controls the opening of the air compressor.

[0024] In some embodiments, the jacking concrete pumping device further includes a first pressure sensor, which is signal-connected to the air compressor controller. The first pressure sensor is located on the high-pressure air pipe and between the air inlet of the capsule valve and the first valve. When the first pressure sensor detects that the pressure value inside the rubber bladder exceeds a first set value, it outputs a shutdown signal to the air compressor controller to control the air compressor to shut down.

[0025] In some embodiments, the jacking concrete pumping device further includes a second pressure sensor, which is signal-connected to the second valve controller. The second pressure sensor is located on the pipeline between the bladder valve outlet and the second valve. When the second pressure sensor detects that the pressure value inside the rubber bladder has not reached a second set value, it outputs a shut-off signal to the second valve controller to control the second valve to close.

[0026] A method for pumping concrete at the top of the roof, using the aforementioned concrete pumping device, includes the following steps:

[0027] S1. Start the concrete pump and pump concrete to the arch crown position for arch crown pouring.

[0028] S2. When concrete is poured from the air vent reserved in the formwork, turn off the concrete pump to stop pumping concrete, turn on the air compressor, open the first valve, and air enters the capsule valve through the high-pressure air pipe through the air inlet of the capsule valve. The capsule valve is closed so that the concrete pumped to the arch will not fall back into the concrete pump pipe.

[0029] S3. After the capsule valve is completely closed, turn off the air compressor to stop supplying air, close the first valve, and keep the capsule valve full of air in the closed state.

[0030] S4. Start the concrete pump to pump concrete. When the concrete is transported through the concrete pump pipe to the vicinity of the capsule valve, release the air in the capsule valve to open the capsule valve. The concrete is then transported through the capsule valve to the arch pumping port.

[0031] S5. After the capsule valve is fully opened, stop releasing air from the capsule valve;

[0032] S6. Repeat steps S2-S5, with step S2 being the last step in the repetition, to ensure that the arch is filled with concrete and that the concrete does not fall back into the concrete pump pipe.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] 1. The concrete pumping device for the arch provided by the present invention ensures that the concrete pumped to the arch will not fall by setting a capsule valve and controlling its inflation and deflation, thereby avoiding void defects in the arch and eliminating the need for remedial measures such as drilling and grouting, thus ensuring construction quality. In addition, the device also includes a control system that can automatically control the inflation and deflation of the capsule valve, thereby improving construction efficiency.

[0035] 2. The jacking concrete pumping process provided by the present invention uses a jacking concrete pumping device. When pouring concrete for the arch, the concrete is pumped repeatedly. The opening and closing of the capsule valve is controlled by the second valve and the air compressor, respectively. The opening and closing of the concrete pump controller, the air compressor controller and the second valve controller cooperate with each other to ensure that the capsule valve is open when the concrete pump is working to allow the concrete to pass through, and the capsule valve is closed when the concrete pump stops working to prevent the concrete from falling. Attached Figure Description

[0036] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0037] Figure 1 This is a schematic diagram of a structure of an embodiment of the concrete pumping device and process for jacking up the top of the present invention.

[0038] Figure 2 This is a schematic diagram illustrating the use of an embodiment of the concrete pumping device and process for jacking up the roof according to the present invention.

[0039] Figure 3 for Figure 1 Schematic diagram of the capsule valve structure;

[0040] Figure 4 A control principle block diagram of an embodiment of the concrete pumping device and process of the present invention.

[0041] In the picture:

[0042] 1. Concrete pump; 2. Concrete pump pipe; 3. Arch pumping port; 4. Capsule valve; 41. Valve housing; 42. Rubber bladder; 421. Capsule valve inlet; 422. Capsule valve outlet; 5. Air compressor; 6. High-pressure air pipe; 7. First valve; 8. Second valve; 9. Control system; 91. Concrete pump controller; 92. Air compressor controller; 93. Second valve controller; 94. Timer; 10. Discharge sensor; 11. First pressure sensor; 12. Second pressure sensor; 13. Air outlet reserved in the casting formwork. Detailed Implementation

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0044] In the description of this invention, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] Example 1:

[0047] See appendix Figures 1 to 4 This paper presents an illustrative embodiment of the concrete pumping device proposed in this invention. The concrete pumping device includes a concrete pump 1, a concrete pump pipe 2, a capsule valve 4, an air compressor 5, a high-pressure air pipe 6, a first valve 7, a second valve 8, a control system 9, a discharge sensor 10, a first pressure sensor 11, and a second pressure sensor 12.

[0048] The concrete pump 1 has a concrete pump inlet, one end of the concrete pump pipe 2 is connected to the concrete pump inlet, and the other end of the concrete pump pipe 2 is provided with an arch top pumping port 3. The concrete is pumped by the concrete pump 1, and then passes through the concrete pump pipe 2 and the arch top pumping port 3 to the casting form for arch top pouring.

[0049] The capsule valve 4 is a valve composed of a valve body 41 and a rubber bladder 42. The rubber bladder 42 is located inside the valve body 41. When the rubber bladder 42 is inflated, it expands, blocking the valve body 41 and closing the valve. When the rubber bladder 42 deflates, it contracts, allowing the valve body 41 to open. The capsule valve 4 is located on the concrete pump pipe 2 and near the arch pumping port 3. The valve body 41 is connected to the concrete pump pipe 2, allowing concrete in the concrete pump pipe 2 to be transported to the arch pumping port 3 via the valve body 41. The capsule valve 4 has a capsule valve inlet 421 and a capsule valve outlet 422, both of which are located on the rubber bladder 42.

[0050] Air compressor 5 is connected to the capsule valve inlet 421 via high-pressure air pipe 6. A first valve 7 is located on high-pressure air pipe 6 and near capsule valve inlet 421. The first valve 7 is a pneumatic valve. When air compressor 5 is turned on, it supplies air to capsule valve 4. Air is delivered from high-pressure air pipe 6, at which point the first valve 7 automatically opens. Air enters the rubber bladder 42 through the first valve 7 and capsule valve inlet 421, causing the rubber bladder 42 to inflate and expand, blocking valve housing 41 to close capsule valve 4. When capsule valve 4 is closed, air compressor 5 no longer needs to supply air. At this time, air compressor 5 is turned off, the first valve 7 automatically closes, and the rubber bladder 42 remains inflated with air, preventing the concrete pumped to the arch from falling back into concrete pump pipe 2.

[0051] The second valve 8 is connected to the air outlet 422 of the capsule valve via a pipeline. When concrete pumping is required, the rubber bladder 42 should be in a contracted state, at which time the valve body 41 is unobstructed and the capsule valve 4 is open. Therefore, when performing concrete pumping, the second valve 8 needs to be opened to release the air inside the rubber bladder 42.

[0052] In order to better control the opening and closing of the capsule valve 4 and ensure that the concrete passes through smoothly and does not fall back down, the control system 9 included in the top concrete pumping device is electrically connected to the concrete pump 1, the air compressor 5 and the second valve 8 respectively.

[0053] The control system 9 includes a concrete pump controller 91, an air compressor controller 92, a second valve controller 93, and a timer 94. The concrete pump controller 91 controls the opening and closing of the concrete pump 1, the air compressor controller 92 controls the opening and closing of the air compressor 5, the second valve controller 93 controls the opening and closing of the second valve 8, and the timer 94 delays the opening of the second valve 8. The delay time is preset by the control system 9 and is determined by the length of the concrete pump pipe 2 and the speed of the deflation and contraction of the rubber bladder 42. This ensures that the bladder valve 4 is open when the concrete is about to pass through it, and that the bladder valve 4 does not open prematurely, causing the concrete already pumped to the arch to fall.

[0054] The timer 94 is electrically connected to the concrete pump controller 91 and the second valve controller 93. The timer 94 starts timing when the concrete pump controller 91 controls the concrete pump 1 to start. When the timer reaches the set value, the timer 94 outputs an opening signal to the second valve controller 93 to control the second valve 8 to open.

[0055] The discharge sensor 10 is connected to the concrete pump controller 91 and the air compressor controller 92 via signal transmission. The discharge sensor 10 is located at the pre-reserved air outlet 13 of the pouring formwork. When the discharge sensor 10 detects concrete exiting from the pre-reserved air outlet 13 of the pouring formwork, it outputs a discharge signal to the concrete pump controller 91 and the air compressor controller 92. Upon receiving the discharge signal, the concrete pump controller 91 controls the concrete pump 1 to shut down, and the air compressor controller 92 controls the air compressor 5 to start. At this time, the concrete pump 1 stops pumping concrete, and the capsule valve 4 closes to ensure that the concrete pumped to the arch does not fall.

[0056] The first pressure sensor 11 is connected to the air compressor controller 92. The first pressure sensor 11 is located on the high-pressure air pipe 6, between the bladder valve inlet 421 and the first valve 7. When the first pressure sensor 11 detects that the pressure inside the rubber bladder 42 exceeds a first set value, it outputs a shut-off signal to the air compressor controller 92 to control the air compressor 5 to shut down. The first set value is the pressure when the rubber bladder 42 is fully inflated and expands, blocking the valve housing 41. After the air compressor 5 shuts down, the first valve 7 automatically closes, and the rubber bladder 42 remains fully inflated, preventing the concrete pumped to the arch from falling back into the concrete pump pipe 2.

[0057] The second pressure sensor 12 is connected to the second valve controller 93. The second pressure sensor 12 is located on the pipeline between the bladder valve outlet 422 and the second valve 8. When the second pressure sensor 12 detects that the pressure inside the rubber bladder 42 has not reached a second set value, it outputs a shut-off signal to the second valve controller 93 to control the second valve 8 to close. The second set value is the pressure at which the rubber bladder 42 fully deflates and contracts, allowing the valve body 41 to pass smoothly. After the second valve 8 closes, the rubber bladder 42 is in a contracted state, allowing concrete to pass smoothly through the valve body 41.

[0058] In the above illustrative embodiment, the jacking concrete pumping device controls the inflation and deflation of the capsule valve to ensure that the capsule valve is open when concrete is about to pass through it, and closes the capsule valve when the concrete pump stops pumping to ensure that the concrete pumped to the arch does not fall into the concrete pump pipe, thus avoiding void defects in the arch. The control system of this device can realize automatic and precise control of the opening and closing of the capsule valve, improving construction efficiency.

[0059] The following is in conjunction with the appendix Figures 1 to 4 The working process of the top-pumping concrete pumping device provided in this embodiment is described as follows:

[0060] When the arch pouring work is required, this concrete pumping device is placed at the construction site. Concrete pump 1 is turned on, pumping concrete to the arch for pouring. When discharge sensor 10 detects concrete exiting from the pre-reserved air vent 13 of the pouring template, it outputs a discharge signal to control system 9. Upon receiving the discharge signal, concrete pump controller 91 controls concrete pump 1 to shut down, stopping concrete pumping. Upon receiving the discharge signal, air compressor controller 92 controls air compressor 5 to start, inflating rubber bladder 42 and blocking valve housing 41. When the first pressure sensor 11 detects that the pressure inside rubber bladder 42 exceeds a first set value, it outputs a shut-off signal to air compressor controller 92 to control air compressor 5 to shut down. Concrete pump controller 91 controls concrete pump 1 to start, and timer 94 starts timing. When the timer reaches the set value, timer 94 outputs an opening signal to second valve controller 93 to control second valve 8 to open. Rubber bladder 42 deflates and contracts, allowing concrete in concrete pump pipe 2 to be transported through valve housing 41 to the arch pumping port 3. When the second pressure sensor 12 detects that the pressure value inside the rubber bladder 42 has not reached the second set value, it outputs a shut-off signal to the second valve controller 93 to control the second valve 8 to close.

[0061] The concrete is pumped repeatedly to avoid voids in the arch. After the arch is filled with concrete, the concrete pumping is stopped. The air compressor controller 92 controls the air compressor 5 to start. The rubber bladder 42 is inflated and expands to block the valve shell 41. When the first pressure sensor 11 detects that the pressure value inside the rubber bladder 42 exceeds the first set value, it outputs a shutdown signal to the air compressor controller 92. The air compressor controller 92 controls the air compressor 5 to shut down.

[0062] Example 2:

[0063] See appendix Figures 1 to 4 This embodiment provides a process for pumping top-load concrete, using the top-load concrete pumping device described in Embodiment 1. The process includes the following steps:

[0064] S1, Concrete pump controller 91 controls concrete pump 1 to start, pumping concrete to the arch crown position for arch crown pouring;

[0065] S2. When the discharge sensor 10 detects concrete coming out of the air outlet 13 reserved in the pouring template, it outputs a discharge signal to the control system 9. When the concrete pump controller 91 receives the discharge signal, it controls the concrete pump 1 to shut down and stop pumping concrete. When the air compressor controller 92 receives the discharge signal, it controls the air compressor 5 to start. The rubber bladder 42 inflates and expands to block the valve shell 41 so that the concrete pumped to the arch will not fall back into the concrete pump pipe 2.

[0066] S3. When the first pressure sensor 11 detects that the pressure value inside the rubber bladder 42 exceeds the first set value, it outputs a shutdown signal to the air compressor controller 92 to control the air compressor 5 to shut down.

[0067] S4. Concrete pump controller 91 controls concrete pump 1 to start, delay timer 94 starts timing, and when the timing reaches the set value, delay timer 94 outputs an opening signal to second valve controller 93 to control second valve 8 to open, rubber bladder 42 deflates and contracts, so that concrete in concrete pump pipe 2 is transported through valve shell 41 to arch pumping port 3.

[0068] S5. When the second pressure sensor 12 detects that the pressure value inside the rubber bladder 42 has not reached the second set value, it outputs a shut-off signal to the second valve controller 93 to control the second valve 8 to close.

[0069] S6. Repeat steps S2-S5, with step S2 being the last step in the repetition, so that the arch is filled with concrete and the concrete does not fall back into the concrete pump pipe 2.

[0070] In the initial state, the rubber bladder 42 of the top concrete pumping device is not inflated. Therefore, in step S1, the concrete will pass smoothly through the capsule valve 4. However, in order to ensure smooth construction, in step S1, when the concrete pump controller 91 controls the concrete pump 1 to start, the timer 94 starts timing. When the timer reaches the set value, the timer 94 outputs an opening signal to the second valve controller 93 to control the second valve 8 to open, ensuring that the capsule valve 4 is in the open state.

[0071] To save energy, the air compressor 5 is shut off after the rubber bladder 42 is fully inflated, ensuring that the rubber bladder 42 remains in an inflated state. The first valve 7 is a pneumatic valve. In step S2, when the air compressor 5 is turned on to supply air to the capsule valve 4, the first valve 7 automatically opens. In step S3, when the air compressor 5 is turned off, no more air continues to be delivered to the capsule valve 4 through the high-pressure air pipe 6, and the first valve 7 automatically closes. The rubber bladder 42 remains fully inflated, and the concrete pumped to the arch will not fall back into the concrete pump pipe 2.

[0072] In step S6, step S2 is repeated as the last step to ensure that the rubber bladder 42 is in an inflated state after the arch is filled with concrete, so that the valve shell 41 is blocked, thereby ensuring that the concrete pumped to the arch will not fall back into the concrete pump pipe 2.

[0073] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0074] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A concrete pumping device for jacking concrete, characterized in that, include: A concrete pump, the concrete pump having a concrete pump inlet; A concrete pump pipe, one end of which is connected to the concrete pump inlet, and the other end of which is provided with an arched pumping port. A capsule valve is disposed on the concrete pump pipe and near the arch pumping port; the capsule valve includes a valve body and a rubber bladder; the valve body is connected to the concrete pump pipe so that the concrete in the concrete pump pipe is transported to the arch pumping port through the valve body; the rubber bladder is disposed inside the valve body and is provided with a capsule valve inlet and a capsule valve outlet. An air compressor, wherein the air compressor is connected to the air inlet of the capsule valve via a high-pressure air pipe; The first valve is located on the high-pressure air pipe and near the air inlet of the capsule valve; The second valve is connected to the air outlet of the capsule valve via a pipeline; The control system is electrically connected to the concrete pump, the air compressor, and the second valve.

2. The concrete pumping device for jacking concrete according to claim 1, characterized in that, The control system includes: A concrete pump controller, used to control the concrete pump to start or stop; An air compressor controller, used to control the air compressor to turn on or off; The second valve controller is used to control the opening or closing of the second valve.

3. The concrete pumping device for jacking concrete according to claim 2, characterized in that, The control system also includes a timer, which is electrically connected to the concrete pump controller and the second valve controller. The timer is used to start timing when the concrete pump controller controls the concrete pump to start. When the timer reaches a set value, the timer outputs an opening signal to the second valve controller to control the second valve to open.

4. The concrete pumping device for jacking concrete according to claim 2, characterized in that, It also includes a discharge sensor, which is signal-connected to the concrete pump controller and the air compressor controller. The discharge sensor is located at the air outlet reserved in the pouring formwork. When the discharge sensor detects concrete coming out of the air outlet reserved in the pouring formwork, it outputs a discharge signal to the concrete pump controller and the air compressor controller. When the concrete pump controller receives the discharge signal, it controls the concrete pump to shut down. When the air compressor controller receives the discharge signal, it controls the air compressor to start.

5. The concrete pumping device for jacking concrete according to claim 2, characterized in that, It also includes a first pressure sensor, which is signal-connected to the air compressor controller. The first pressure sensor is located on the high-pressure air pipe and between the air inlet of the capsule valve and the first valve. When the first pressure sensor detects that the pressure value inside the rubber bladder exceeds a first set value, it outputs a shutdown signal to the air compressor controller to control the air compressor to shut down.

6. The concrete pumping device for jacking concrete according to claim 2, characterized in that, It also includes a second pressure sensor, which is signal-connected to the second valve controller. The second pressure sensor is located on the pipeline between the air outlet of the capsule valve and the second valve. When the second pressure sensor detects that the pressure value inside the rubber bladder has not reached the second set value, it outputs a shut-off signal to the second valve controller to control the second valve to close.

7. A process for pumping top-load concrete, using the top-load concrete pumping device according to any one of claims 1-6, characterized in that, The process includes the following steps: S1. Start the concrete pump and pump concrete to the arch crown position for arch crown pouring. S2. When concrete is poured from the air vent reserved in the formwork, turn off the concrete pump to stop pumping concrete, turn on the air compressor, open the first valve, and air enters the capsule valve through the high-pressure air pipe through the air inlet of the capsule valve. The capsule valve is closed so that the concrete pumped to the arch will not fall back into the concrete pump pipe. S3. After the capsule valve is completely closed, turn off the air compressor to stop supplying air, close the first valve, and keep the capsule valve full of air in the closed state. S4. Start the concrete pump to pump concrete. When the concrete is transported through the concrete pump pipe to the vicinity of the capsule valve, release the air in the capsule valve to open the capsule valve. The concrete is then transported through the capsule valve to the arch pumping port. S5. After the capsule valve is fully opened, stop releasing air from the capsule valve; S6. Repeat steps S2-S5, with step S2 being the last step in the repetition, to ensure that the arch is filled with concrete and that the concrete does not fall back into the concrete pump pipe.

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