Concrete construction detection device and construction detection method thereof

Abstract

This invention relates to the field of tunnel secondary lining technology, and discloses a concrete construction testing device and its construction testing method. The concrete construction testing device includes a testing pipe, a cross-shaped overflow groove at the upper end of the testing pipe, a capping mechanism, a pressure-bearing venting mechanism, a pressure-bearing sealing mechanism, a ring pressure sensor, and a limiting nut. This invention uses the capping mechanism and the pressure-bearing venting mechanism to completely seal the cross-shaped overflow groove on the testing pipe. When grouting is injected into the arch, the pressure-bearing venting mechanism releases the gas until the concrete slurry enters the testing pipe. As the pressure applied by the concrete to the pressure-bearing venting mechanism gradually increases, the pressure-bearing venting mechanism squeezes the pressure-bearing sealing mechanism. The pressure-bearing sealing mechanism gradually expands under pressure, increasing the friction between itself and the inner wall of the testing pipe until it stops moving downwards. The concrete can then fully and densely fill the entire arch space.

Description

Technical Field

[0001] This invention relates to the field of tunnel secondary lining technology, and more specifically, to a concrete construction testing device and a construction testing method thereof. Background Technology

[0002] Secondary lining is a cast-in-place concrete or reinforced concrete lining constructed inside the initial support during tunnel construction, which together with the initial support forms a composite lining.

[0003] Secondary lining, in contrast to initial support, refers to the inner lining constructed with materials such as concrete after the tunnel has undergone initial support. This lining serves to reinforce the support, optimize the drainage system, improve the appearance, and facilitate the installation of communication, lighting, and monitoring facilities, thus meeting the requirements of modern highway tunnel construction.

[0004] During the secondary lining process, before filling the arch with concrete, two to four grouting holes need to be reserved at the arch top of the formwork trolley, and grouting pipes need to be installed at the grouting holes. The end of the grouting pipe inserted into the arch top needs to be tightly pressed against the built-in waterproof layer and other structures, and an overflow groove should be opened at one end of the grouting pipe. During the grouting process, one to three grouting pipes can be selected as the main grouting channels. After grouting, it can be observed from other un-grouted grouting pipes whether there is overflow concrete to determine whether the arch grouting is full and dense. However, the overflow groove opened on the grouting pipe has a depth. When grout overflow occurs, there may be empty groove areas at the upper end of the grouting pipe, and other areas may have low density areas if the operation is improper. Therefore, the existing method of opening overflow grooves on grouting pipes to observe the filling density is not effective. Moreover, a lot of concrete flows out from the overflow groove, making the trolley cleaning more troublesome and wasting resources. In addition, the pipes need to be sealed in time after grouting, which is quite cumbersome. Summary of the Invention

[0005] The purpose of this invention is to provide a concrete construction testing device and a construction testing method to solve the above-mentioned problems.

[0006] This invention provides a concrete construction testing device, including a testing tube, a cross overflow groove at the upper end of the testing tube, a capping mechanism detachably connected to the upper end of the testing tube, a pressure-bearing venting mechanism, a pressure-bearing sealing mechanism, and an annular pressure sensor slidably connected to the capping mechanism from top to bottom, and a limiting nut threadedly connected to the capping mechanism. The limiting nut is located below the annular pressure sensor and is used to provide support force for the annular pressure sensor.

[0007] The sealing mechanism includes a top sealing plate covering the upper end of the detection tube and a central shaft connected to the lower end of the top sealing plate. The central shaft is coaxially arranged with the detection tube. The pressure-bearing exhaust mechanism, the pressure-bearing sealing mechanism and the annular pressure sensor are slidably connected to the central shaft from top to bottom. The central shaft is provided with a threaded part that cooperates with the limit nut.

[0008] The pressure-bearing venting mechanism includes a first annular pressure-bearing expansion assembly, a syringe-type liquid storage assembly connected to the first annular pressure-bearing expansion assembly, and a sealing pressure-bearing component connected to the syringe-type liquid storage assembly. The sealing pressure-bearing component is used to seal the cross overflow groove and adjust the internal space size of the syringe-type liquid storage assembly. When the internal space of the syringe-type liquid storage assembly shrinks, the liquid inside it is transported to the first annular pressure-bearing expansion assembly.

[0009] The pressure-bearing sealing mechanism includes a second annular pressure-bearing expansion component and a telescopic liquid storage component connected to the lower end of the second annular pressure-bearing expansion component. The telescopic liquid storage component is connected to the second annular pressure-bearing expansion component. The upper end of the telescopic liquid storage component is fixedly connected to the second annular pressure-bearing expansion component, and the lower end of the telescopic liquid storage component is connected to the input end of the annular pressure sensor. When the second annular pressure-bearing expansion component is under pressure, it moves toward the annular pressure sensor and compresses the telescopic liquid storage component. After being compressed, the telescopic liquid storage component transports the liquid inside it into the second annular pressure-bearing expansion component.

[0010] As a further optimization of the present invention, the first annular pressure-bearing expansion assembly includes a first annular plate, a first annular expansion bladder connected to the outer circular surface of the first annular plate, and a first channel disposed on the first annular plate. The first annular expansion bladder is connected to a syringe-type liquid storage assembly through the first channel.

[0011] As a further optimization of the present invention, the syringe-type liquid storage assembly includes several sealing housings fixedly connected to the upper end of the first ring plate, a piston block disposed within the sealing housing, and a first spring, wherein the two ends of the first spring are respectively connected to the inner wall of the sealing housing and the side wall of the piston block.

[0012] As a further optimization of the present invention, the sealing pressure-bearing component includes a plurality of blocking plates and a piston rod connected to the blocking plates. The plurality of blocking plates are symmetrically arranged in the cross overflow groove, and one end of the piston rod passes through the corresponding sealing shell and is fixedly connected to the piston block.

[0013] As a further optimization of the present invention, the upper and lower end faces of the top sealing plate are respectively an arc surface and a plane surface. The top sealing plate covers the upper opening of the cross overflow groove. The blocking plate is in contact with the lower section of the top sealing plate. Several blocking plates respectively block the four side openings of the cross overflow groove.

[0014] As a further optimization of the present invention, a first liquid storage chamber is formed between the piston block and the sealing shell, the first liquid storage chamber is connected to the internal space of the first annular expansion bladder through a first channel, and the first spring is located in the first liquid storage chamber.

[0015] As a further optimization of the present invention, the second annular pressure-bearing expansion assembly includes a second annular plate, a second annular expansion bladder connected to the outer circular surface of the second annular plate, and a second channel disposed on the second annular plate. The second annular expansion bladder is connected to the second channel through a telescopic liquid storage assembly. The initial outer diameter of the first annular expansion bladder and the second annular expansion bladder is smaller than the inner diameter of the detection tube.

[0016] As a further optimization of the present invention, the telescopic liquid storage assembly includes a third ring plate, a multi-section telescopic rod connected to the lower end of the third ring plate, a fourth ring plate connected to one end of the multi-section telescopic rod, an outer corrugated pipe, an inner corrugated pipe, and a second spring connected between the third ring plate and the fourth ring plate. The third ring plate, the fourth ring plate, the outer corrugated pipe, and the inner corrugated pipe form a second liquid storage chamber, and the multi-section telescopic rod and the second spring are both located in the second liquid storage chamber.

[0017] As a further optimization of the present invention, the third ring plate is provided with a third channel that cooperates with the second channel, and the second liquid storage chamber is connected to the internal space of the second annular expansion bladder through the third channel and the second channel.

[0018] A method for testing concrete construction, using the concrete construction testing equipment described above, includes the following steps:

[0019] Select one of the grouting holes reserved at the top of the trolley template arch to install a detection pipe. The upper end of the detection pipe is connected to a capping mechanism and, from top to bottom, a pressure-bearing exhaust mechanism, a pressure-bearing sealing mechanism, and a ring pressure sensor that are slidably connected to the capping mechanism, as well as a limit nut that is threadedly connected to the capping mechanism. The remaining grouting holes are equipped with grouting pipes.

[0020] Grouting is carried out inside the arch;

[0021] The gas inside the arch is discharged through the pressure-bearing venting mechanism until the concrete slurry enters the detection tube. At this point, the pressure-bearing venting mechanism initially seals the detection tube. As the pressure of the concrete applied to the pressure-bearing venting mechanism gradually increases, the pressure-bearing venting mechanism squeezes the pressure-bearing sealing mechanism. The pressure-bearing sealing mechanism gradually expands under pressure, increasing the friction between it and the inner wall of the detection tube until the pressure-bearing sealing mechanism stops contracting. When no pressure change is detected by the annular pressure sensor, the concrete pouring process can be determined to be over.

[0022] The beneficial effects of this invention are as follows: This invention sets up a capping mechanism, a pressure-bearing venting mechanism, a pressure-bearing sealing mechanism, and a ring pressure sensor on the grouting detection pipe. The capping mechanism and the pressure-bearing venting mechanism completely seal the cross overflow groove set on the detection pipe. When grouting is injected into the arch, the air pressure in the arch space gradually increases and squeezes the pressure-bearing venting mechanism, allowing the gas to be discharged smoothly until the concrete slurry squeezes the pressure-bearing venting mechanism and enters the detection pipe. The pressure-bearing venting mechanism initially seals the detection pipe. As the pressure of the concrete applied to the pressure-bearing venting mechanism gradually increases, the pressure-bearing venting mechanism moves down along the detection pipe and squeezes the pressure-bearing sealing mechanism. The pressure-bearing sealing mechanism gradually expands under pressure, gradually increasing the friction between it and the inner wall of the detection pipe until the pressure-bearing sealing mechanism stops moving down. At this time, the pressure-bearing sealing mechanism completely seals the detection pipe. During this process, the concrete can fully and densely fill the entire arch space. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the detection tube of the present invention;

[0025] Figure 3 This is the present invention. Figure 1 A sectional view;

[0026] Figure 4 This is a view showing the cooperation between the pressure-bearing exhaust mechanism and the capping mechanism of the present invention;

[0027] Figure 5 This is a view showing the cooperation between the pressure-bearing sealing mechanism and the capping mechanism of the present invention;

[0028] Figure 6 This is a view showing the mating of the outer corrugated pipe and the inner corrugated pipe of the present invention.

[0029] In the diagram: 1. Detection tube; 101. Cross overflow groove; 2. Top sealing mechanism; 201. Top sealing plate; 202. Central shaft; 3. Pressure-bearing exhaust mechanism; 301. First ring plate; 302. First annular expansion bladder; 303. First channel; 304. Sealing shell; 305. Piston block; 306. First spring; 307. Piston rod; 308. Blocking plate; 4. Pressure-bearing sealing mechanism; 401. Second ring plate; 402. Second annular expansion bladder; 403. Second channel; 404. Third ring plate; 4040. Third channel; 405. Multi-section telescopic rod; 406. Fourth ring plate; 407. Outer bellows; 408. Inner bellows; 409. Second spring; 5. Annular pressure sensor; 6. Limit nut. Detailed Implementation

[0030] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0031] like Figures 1-6 As shown, a concrete construction testing device includes a testing pipe 1, a cross overflow groove 101 located at the upper end of the testing pipe 1, a capping mechanism 2 detachably connected to the upper end of the testing pipe 1, a pressure-bearing venting mechanism 3, a pressure-bearing sealing mechanism 4, and an annular pressure sensor 5 slidably connected to the capping mechanism 2 from top to bottom, and a limiting nut 6 threadedly connected to the capping mechanism 2. The limiting nut 6 is located below the annular pressure sensor 5 and is used to provide support force for the annular pressure sensor 5.

[0032] The sealing mechanism 2 includes a top sealing plate 201 covering the upper end of the detection tube 1 and a central shaft 202 connected to the lower end of the top sealing plate 201. The central shaft 202 is coaxially arranged with the detection tube 1. The pressure-bearing exhaust mechanism 3, the pressure-bearing sealing mechanism 4, and the annular pressure sensor 5 are slidably connected to the central shaft 202 from top to bottom. The central shaft 202 is provided with a threaded part that cooperates with the limit nut 6.

[0033] The pressure-bearing venting mechanism 3 includes a first annular pressure-bearing expansion assembly, a syringe-type liquid storage assembly connected to the first annular pressure-bearing expansion assembly, and a sealing pressure-bearing component connected to the syringe-type liquid storage assembly. The sealing pressure-bearing component is used to seal the cross overflow groove 101 and adjust the internal space size of the syringe-type liquid storage assembly. When the internal space of the syringe-type liquid storage assembly shrinks, the liquid inside it is transported to the first annular pressure-bearing expansion assembly.

[0034] The pressure-bearing sealing mechanism 4 includes a second annular pressure-bearing expansion component and a telescopic liquid storage component connected to the lower end of the second annular pressure-bearing expansion component. The telescopic liquid storage component is connected to the second annular pressure-bearing expansion component. The upper end of the telescopic liquid storage component is fixedly connected to the second annular pressure-bearing expansion component, and the lower end of the telescopic liquid storage component is connected to the input end of the annular pressure sensor 5. When the second annular pressure-bearing expansion component is under pressure, it moves toward the annular pressure sensor 5 and compresses the telescopic liquid storage component. After being compressed, the telescopic liquid storage component transports the liquid inside it into the second annular pressure-bearing expansion component.

[0035] It should be noted that when filling the arch with concrete, two to four grouting holes should be reserved on the arch formwork, and grouting pipes should be installed at these holes. One of the outermost grouting holes can be fitted with a detection pipe 1. The detection pipe 1 should be consistent with the grouting pipe in terms of material, specifications, and shape. The number of grouting pipes should be selected according to the grouting parameters. If not suitable, a capping mechanism 2, a pressure-bearing venting mechanism 3, a pressure-bearing sealing mechanism 4, and a ring pressure sensor 5 should also be installed on the corresponding ungrouted grouting pipes to ensure the final density control of the capping grout. After the detection pipe 1 is inserted from the corresponding grouting hole and presses against the built-in waterproof layer and other structural components, the top sealing plate 201 can seal the gap between the upper end of the detection pipe 1 or grouting pipe and the waterproof layer and other structural components, effectively preventing... During the final overflow, a cavity is formed between the detection pipe 1 and structural components such as the waterproof layer. As the concrete gradually fills the cavity, the air in the internal space of the secondary lining arch is gradually squeezed into the overflow groove of the detection pipe 1, and gradually pressurizes the sealing pressure-bearing component blocking the cross overflow groove 101. As the pressure increases, the sealing pressure-bearing component moves towards the syringe-type liquid storage component until it initially separates from the cross overflow groove 101. At this point, the gap between the sealing pressure-bearing component and the cross overflow groove 101 is very small, insufficient for concrete to flow out, and the liquid in the syringe-type liquid storage component is squeezed into the first annular pressure-bearing expansion component, causing it to gradually expand. At this time, there is still a gap between the first annular pressure-bearing expansion component and the inner wall of the detection pipe 1, allowing gas to escape from the detection pipe. As the concrete fills the cross-shaped overflow groove 101, it flows into the overflow groove 101 and applies pressure to the sealing pressure member. This causes the sealing pressure member to continue moving towards the syringe-type liquid storage component, further squeezing it and causing the first annular pressure-bearing expansion component to continue expanding. During this process, the concrete and air entering the cross-shaped overflow groove 101 flow into the detection tube 1 together. Most of the concrete falls onto the first annular pressure-bearing expansion component, while a small portion flows out of the detection tube 1 through the gaps. As the first annular pressure-bearing expansion component expands to contact the inner wall of the detection tube 1, the concrete entering the detection tube 1 completely falls onto the first annular pressure-bearing expansion component, and the air is basically expelled. With the gradual filling and pressurization of the concrete... The first annular pressure-bearing expansion component moves downward and transmits pressure to the second annular pressure-bearing expansion component. The second annular pressure-bearing expansion component squeezes the telescopic liquid storage component, and the liquid in the telescopic liquid storage component is gradually forced into the second annular pressure-bearing expansion component, causing the second annular pressure-bearing expansion component to gradually expand and contact the inner wall of the detection tube 1. As the pressure applied by the second annular pressure-bearing expansion component to the inner wall of the detection tube 1 increases, the friction between the second annular pressure-bearing expansion component and the inner wall of the detection tube 1 gradually increases until the second annular pressure-bearing expansion component stops moving, that is, the pressure value of the annular pressure sensor 5 no longer changes. At this time, the arch space is filled fully and tightly, and the effect of reducing the amount of concrete slurry overflow and automatically sealing the detection tube 1 is achieved.

[0036] The first annular pressure-bearing expansion assembly includes a first annular plate 301, a first annular expansion bladder 302 connected to the outer circular surface of the first annular plate 301, and a first channel 303 provided on the first annular plate 301. The first annular expansion bladder 302 is connected to the syringe-type liquid storage assembly through the first channel 303.

[0037] The syringe-type liquid storage assembly includes several sealing housings 304 fixedly connected to the upper end of the first ring plate 301, piston blocks 305 disposed inside the sealing housings 304, and a first spring 306. The two ends of the first spring 306 are respectively connected to the inner wall of the sealing housings 304 and the side wall of the piston blocks 305.

[0038] The sealing pressure-bearing component includes several blocking plates 308 and a piston rod 307 connected to the blocking plates 308. The several blocking plates 308 are symmetrically arranged in the cross overflow groove 101. One end of the piston rod 307 passes through the corresponding sealing housing 304 and is fixedly connected to the piston block 305.

[0039] The initial outer diameter of the first annular expansion bladder 302 is smaller than the inner diameter of the detection tube 1;

[0040] A first liquid storage chamber is formed between the piston block 305 and the sealing housing 304. The first liquid storage chamber is connected to the internal space of the first annular expansion bladder 302 through the first channel 303. The first spring 306 is located in the first liquid storage chamber.

[0041] It should be noted that, as described above, when the air inside the dome, which is a filling space, is compressed, it flows into the cross overflow groove 101 and gradually squeezes the blocking plate 308, pushing the blocking plate 308 and the piston rod 307 toward the sealing housing 304. The piston rod 307 gradually pushes the piston block 305 inside the sealing housing 304 and squeezes the liquid in the first liquid storage chamber and the first spring 306, causing the liquid to gradually flow into the first annular expansion bladder 302. The first annular expansion bladder 302 gradually expands. During the exhaust process, because the blocking plate 308 and the cross overflow groove 101 have a small gap... Therefore, the expansion degree of the first annular expansion bladder 302 is relatively small, and it does not contact the inner wall of the detection tube 1, which allows gas to be easily discharged from the gap of the detection tube 1. As the concrete enters and the amount of concrete gradually increases, the distance that the blocking plate 308 is pushed gradually increases, and the expansion degree of the first annular expansion bladder 302 gradually increases until it contacts the inner wall of the detection tube 1, achieving preliminary sealing. However, due to the limitation of the stroke of the blocking plate 308, it is impossible to completely seal the tube through the first annular expansion bladder 302. That is, the pressure applied by the first annular expansion bladder 302 to the inner wall of the detection tube 1 cannot reach the sealing standard.

[0042] The top sealing plate 201 has an arc surface on its upper end and a flat surface on its lower end. The top sealing plate 201 covers the upper opening of the cross overflow groove 101. The blocking plate 308 contacts the lower section of the top sealing plate 201. Several blocking plates 308 block the four side openings of the cross overflow groove 101 respectively.

[0043] It should be noted that the top sealing plate 201 and the blocking plate 308 can effectively seal the gap between the upper end of the detection tube 1 and other structural components such as the waterproof plate installed inside the arch, and can effectively prevent the existence of filling gaps.

[0044] The second annular pressure-bearing expansion assembly includes a second annular plate 401, a second annular expansion bladder 402 connected to the outer circular surface of the second annular plate 401, and a second channel 403 provided on the second annular plate 401. The second annular expansion bladder 402 is connected to the second channel 403 via a telescopic liquid storage assembly.

[0045] The telescopic liquid storage assembly includes a third ring plate 404, a multi-section telescopic rod 405 connected to the lower end of the third ring plate 404, a fourth ring plate 406 connected to one end of the multi-section telescopic rod 405, an outer bellows 407, an inner bellows 408, and a second spring 409 connected between the third ring plate 404 and the fourth ring plate 406. A second liquid storage chamber is formed between the third ring plate 404, the fourth ring plate 406, the outer bellows 407, and the inner bellows 408. The multi-section telescopic rod 405 and the second spring 409 are both located in the second liquid storage chamber.

[0046] The third ring plate 404 is provided with a third channel 4040 that cooperates with the second channel 403. The second liquid storage chamber is connected to the internal space of the second annular expansion bladder 402 through the third channel 4040 and the second channel 403. The initial outer diameter of the second annular expansion bladder 402 is smaller than the inner diameter of the detection tube 1.

[0047] It should be noted that, as described above, as the concrete pressure on the first ring plate 301 and the first annular expansion bladder 302 increases and they move downwards along the detection tube 1, the first ring plate 301 will push the second ring plate 401 downwards as well. When the second ring plate 401 moves downwards, it will cause the third ring plate 404 to move downwards. Because the fourth ring plate 406 and the annular pressure sensor 5 are limited by the limiting nut 6, they will not move downwards. At this time, as the second ring plate 401 and the third ring plate 404 move downwards, the second liquid storage chamber formed between the third ring plate 404, the fourth ring plate 406, the outer corrugated pipe 407, and the inner corrugated pipe 408 is gradually compressed. The liquid inside is gradually forced into the second annular expansion bladder 402. The second annular expansion bladder 402 is compressed and gradually expands until it contacts the inner wall of the detection tube 1. The pressure applied to the inner wall of the detection tube 1 gradually increases until the friction between the second annular expansion bladder 402 and the first annular expansion bladder 302 and the inner wall of the detection tube 1 is equal to the pressure applied to the first ring plate 301, the first annular expansion bladder 302 and the second annular expansion bladder 402 when the concrete is fully filled. At this time, the first ring plate 301, the second ring plate 401 and the third ring plate 404 no longer move, achieving the effect of tightly sealing the channel of the detection tube 1.

[0048] It should be noted that after the filling is completed and the concrete has set, the ring pressure sensor 5 can be easily removed by unscrewing the limit nut 6. If the pressure-bearing sealing mechanism 4 has little or no contact with the concrete, the pressure-bearing sealing mechanism 4 can also be removed for reuse.

[0049] The above description of this embodiment is not limited to the specific implementation described above. The specific implementation described above is merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this embodiment, all of which are within the protection scope of this embodiment.

Claims

1. A concrete construction testing device, characterized in that, The device includes a detection tube (1), a cross overflow groove (101) located at the upper end of the detection tube (1), a capping mechanism (2) detachably connected to the upper end of the detection tube (1), a pressure-bearing exhaust mechanism (3), a pressure-bearing sealing mechanism (4), and an annular pressure sensor (5) slidably connected to the capping mechanism (2) from top to bottom, and a limiting nut (6) threadedly connected to the capping mechanism (2). The limiting nut (6) is located below the annular pressure sensor (5) and is used to provide support for the annular pressure sensor (5). The sealing mechanism (2) includes a top sealing plate (201) covering the upper end of the detection tube (1) and a central shaft (202) connected to the lower end of the top sealing plate (201). The central shaft (202) is coaxially arranged with the detection tube (1). The pressure-bearing exhaust mechanism (3), the pressure-bearing sealing mechanism (4) and the annular pressure sensor (5) are slidably connected to the central shaft (202) from top to bottom. The central shaft (202) is provided with a threaded part that cooperates with the limiting nut (6). The pressure-bearing venting mechanism (3) includes a first annular pressure-bearing expansion assembly, a syringe-type liquid storage assembly connected to the first annular pressure-bearing expansion assembly, and a sealing pressure-bearing component connected to the syringe-type liquid storage assembly. The sealing pressure-bearing component is used to seal the cross overflow groove (101) and adjust the internal space size of the syringe-type liquid storage assembly. When the internal space of the syringe-type liquid storage assembly shrinks, the liquid inside it is transported to the first annular pressure-bearing expansion assembly. The pressure-bearing sealing mechanism (4) includes a second annular pressure-bearing expansion component and a telescopic liquid storage component connected to the lower end of the second annular pressure-bearing expansion component. The telescopic liquid storage component is connected to the second annular pressure-bearing expansion component. The upper end of the telescopic liquid storage component is fixedly connected to the second annular pressure-bearing expansion component. The lower end of the telescopic liquid storage component is connected to the input end of the annular pressure sensor (5). When the second annular pressure-bearing expansion component is under pressure, it moves toward the annular pressure sensor (5) and compresses the telescopic liquid storage component. After the telescopic liquid storage component is compressed, it transports the liquid inside it to the second annular pressure-bearing expansion component.

2. The concrete construction testing equipment according to claim 1, characterized in that, The first annular pressure-bearing expansion assembly includes a first annular plate (301), a first annular expansion bladder (302) connected to the outer circular surface of the first annular plate (301), and a first channel (303) provided on the first annular plate (301). The first annular expansion bladder (302) is connected to the syringe-type liquid storage assembly through the first channel (303).

3. The concrete construction testing equipment according to claim 2, characterized in that, The syringe-type liquid storage assembly includes several sealing housings (304) fixedly connected to the upper end of the first ring plate (301), a piston block (305) disposed in the sealing housing (304), and a first spring (306). The two ends of the first spring (306) are respectively connected to the inner wall of the sealing housing (304) and the side wall of the piston block (305).

4. The concrete construction testing equipment according to claim 3, characterized in that, The sealing pressure-bearing component includes several plug plates (308) and a piston rod (307) connected to the plug plates (308). Several plug plates (308) are symmetrically arranged in the cross overflow groove (101). One end of the piston rod (307) passes through the corresponding sealing housing (304) and is fixedly connected to the piston block (305).

5. A concrete construction testing device according to claim 4, characterized in that, The upper and lower end faces of the top sealing plate (201) are an arc surface and a plane, respectively. The top sealing plate (201) covers the upper opening of the cross overflow groove (101). The blocking plate (308) contacts the lower end face of the top sealing plate (201). Several blocking plates (308) respectively block the four side openings of the cross overflow groove (101).

6. A concrete construction testing device according to claim 5, characterized in that, A first liquid storage chamber is formed between the piston block (305) and the sealing shell (304). The first liquid storage chamber is connected to the internal space of the first annular expansion bladder (302) through the first channel (303). The first spring (306) is located in the first liquid storage chamber.

7. A concrete construction testing device according to claim 6, characterized in that, The second annular pressure-bearing expansion assembly includes a second annular plate (401), a second annular expansion bladder (402) connected to the outer circular surface of the second annular plate (401), and a second channel (403) provided on the second annular plate (401). The second annular expansion bladder (402) is connected to the telescopic liquid storage assembly through the second channel (403). The initial outer diameter of the first annular expansion bladder (302) and the second annular expansion bladder (402) is smaller than the inner diameter of the detection tube (1).

8. A concrete construction testing device according to claim 7, characterized in that, The telescopic liquid storage assembly includes a third ring plate (404), a multi-section telescopic rod (405) connected to the lower end of the third ring plate (404), a fourth ring plate (406) connected to one end of the multi-section telescopic rod (405), an outer corrugated pipe (407), an inner corrugated pipe (408), and a second spring (409) connected between the third ring plate (404) and the fourth ring plate (406). A second liquid storage chamber is formed between the third ring plate (404), the fourth ring plate (406), the outer corrugated pipe (407), and the inner corrugated pipe (408). The multi-section telescopic rod (405) and the second spring (409) are both located in the second liquid storage chamber.

9. A concrete construction testing device according to claim 8, characterized in that, The third ring plate (404) is provided with a third channel (4040) that cooperates with the second channel (403). The second liquid storage chamber is connected to the internal space of the second annular expansion bladder (402) through the third channel (4040) and the second channel (403).

10. A method for testing concrete construction, characterized in that, The concrete construction testing equipment as described in any one of claims 1-9 includes the following steps: Select one of the grouting holes reserved at the top of the trolley template arch to install a detection pipe (1). The upper end of the detection pipe (1) is connected to a capping mechanism (2) and a pressure-bearing exhaust mechanism (3), a pressure-bearing sealing mechanism (4), and a ring pressure sensor (5) that are slidably connected to the capping mechanism (2) from top to bottom, as well as a limit nut (6) that is threadedly connected to the capping mechanism (2). The remaining grouting holes are equipped with grouting pipes. Grouting is carried out inside the arch; The gas inside the arch is discharged through the pressure-bearing exhaust mechanism (3) until the concrete slurry enters the detection pipe (1). At this time, the pressure-bearing exhaust mechanism (3) initially seals the detection pipe (1). As the pressure applied by the concrete to the pressure-bearing exhaust mechanism (3) gradually increases, the pressure-bearing exhaust mechanism (3) squeezes the pressure-bearing sealing mechanism (4). After being pressed, the pressure-bearing sealing mechanism (4) gradually expands and increases the friction between it and the inner wall of the detection pipe (1) until the pressure-bearing sealing mechanism (4) stops contracting. When the ring pressure sensor (5) detects no pressure change, it can be determined that the concrete pouring process is over.

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