Tunnel grouting assembly and grouting device

Abstract

The utility model discloses a tunnel grouting assembly and a grouting device, and relates to the technical field of tunnel engineering. The tunnel grouting assembly comprises a grouting support, a grouting main pipe extending upwards is arranged on the grouting support, a radar support is arranged on the grouting main pipe, a geological radar scanner is arranged on the radar support, and a grouting pressure gauge for monitoring the grouting pressure in the grouting main pipe is further arranged on the grouting main pipe. The grouting device is used for grouting the gap between the second lining and the primary support, in the grouting process, the geological radar scanner can be used for scanning the second lining structure in real time and checking the grouting effect in time, an operator can adjust the grouting pressure and the grouting amount in time according to the scanning result of the geological radar scanner, and the grouting efficiency is improved. The condition of gaps or non-uniform grouting is effectively avoided; compared with the prior art, repeated grouting is not needed, the grouting time is saved, meanwhile, re-drilling is not needed, and the labor intensity and the construction cost can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel engineering, in particular to a tunnel grouting assembly and a grouting device. BACKGROUND

[0002] In tunnel construction, the secondary lining structure is a permanent supporting structure of the tunnel, and the design and construction quality thereof directly affect the stability and service life of the tunnel. The secondary lining design usually adopts a reinforced concrete structure, and the primary support adopts a steel arch frame / steel grid combined with sprayed concrete. In order to enhance the stability of the tunnel, a grouting hole is usually arranged between the secondary lining and the primary support, and a grouting process is used to fill the gap, thereby improving the integrity and durability of the structure.

[0003] The currently commonly used grouting process is as follows: first, a geological radar is used to scan the secondary lining structure to detect cavities, cracks or other geological abnormalities behind the lining, and after the detection is completed, the grouting requirements are analyzed according to the geological radar image, and a grouting scheme is formulated; then, the grouting is performed according to the grouting scheme, and after the grouting is completed, the geological radar scanning is performed again to check the grouting effect; if the scanning result shows that there is still a gap or the grouting is uneven, it is necessary to re-perform supplementary grouting, which may need to be repeated until the scanning result shows that the grouting effect meets the requirements.

[0004] However, the existing grouting method needs to repeatedly perform the geological radar scanning and grouting, which takes a long time and seriously affects the project progress, and the multiple grouting may involve the need to re-drill the hole, thereby increasing the labor intensity and construction cost. CONTENT OF THE INVENTION

[0005] The present application aims to provide a tunnel grouting assembly and a grouting device to solve the problem of long time consumption in the grouting process.

[0006] The technical solution adopted by the present application to solve its technical problem is as follows:

[0007] In a first aspect, a tunnel grouting assembly is provided, comprising a grouting support, an upwardly extending grouting main pipe being arranged on the grouting support, a radar support being arranged on the grouting main pipe, a geological radar scanner being arranged on the radar support, and a grouting pressure gauge being further arranged on the grouting main pipe to monitor the grouting pressure in the grouting main pipe.

[0008] Further, the radar support is connected with the grouting main pipe through a rotating seat, and the rotating seat can rotate around the grouting main pipe.

[0009] Further, the radar support comprises an adjusting arm and a telescopic device, the adjusting arm is arranged in an inclined manner from top to bottom, the lower end of the adjusting arm is hinged to the rotating seat, the telescopic device is connected between the adjusting arm and the telescopic device, and the geological radar scanner is connected with the upper end of the adjusting arm.

[0010] Further, the telescopic device comprises a flower basket screw, a spring or an elastic rope.

[0011] Further, the ground penetrating radar scanner is hinged to the upper end of the adjusting arm.

[0012] Further, a plurality of rollers are arranged on the side of the ground penetrating radar scanner away from the adjusting arm.

[0013] Further, the grouting main pipe is further provided with a grouting valve.

[0014] Further, the upper end of the grouting main pipe is connected with a grouting access pipe.

[0015] Further, the lower end of the grouting main pipe is connected with a grouting hose.

[0016] In a second aspect, a tunnel grouting device is provided, comprising a grouting assembly, a tunnel trolley and a grouting machine, the grouting assembly is arranged on the top of the tunnel trolley, the grouting assembly is the tunnel grouting assembly provided in the first aspect, and the lower end of the grouting main pipe is in communication with the outlet of the grouting machine.

[0017] The application has the following beneficial effects:

[0018] The tunnel grouting assembly and the grouting device provided by the application are used for grouting the gap between the secondary lining and the primary support. In the grouting process, the ground penetrating radar scanner can be used to scan the secondary lining structure in real time, and the grouting effect can be checked in time. The operator can adjust the grouting pressure and the grouting amount in time according to the scanning result of the ground penetrating radar scanner, so that the situation of the gap or uneven grouting can be effectively avoided. Compared with the prior art, the grouting time is saved, and the labor intensity and the construction cost can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0020] Figure 1 is a structural schematic view of the tunnel grouting assembly provided by the application;

[0021] Figure 2 is a structural schematic view of the tunnel grouting device provided by the application;

[0022] Figure 3 is Figure 2Enlarged view of middle A part.

[0023] Reference signs:

[0024] 1 - Grouting assembly

[0025] 2 - Tunnel trolley

[0026] 3 - Grouting machine

[0027] 4 - Secondary lining

[0028] 5 - Pre-embedded grouting pipe

[0029] 10 - Grouting support

[0030] 11 - Grouting main pipe

[0031] 12 - Radar support

[0032] 121 - Adjusting arm; 122 - Telescopic device; 123 - Supporting arm

[0033] 13 - Geological radar scanner

[0034] 14 - Grouting pressure gauge

[0035] 15 - Rotating seat

[0036] 16 - Roller

[0037] 17 - Grouting valve

[0038] 18 - Grouting access pipe

[0039] 19 - Grouting hose DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work, fall within the scope of protection of the present application. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0041] In the description of the present application, the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise specified, the above orientation description can be flexibly arranged in the actual application process under the condition of meeting the relative positional relationship shown in the drawings.

[0042] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] Referring to Figure 1 The embodiment of the present application provides a tunnel grouting assembly, which comprises a grouting support 10, an upwardly extending grouting main pipe 11 is arranged on the grouting support 10, a radar support 12 is arranged on the grouting main pipe 11, a geological radar scanner 13 is arranged on the radar support 12, and a grouting pressure gauge 14 for monitoring the grouting pressure in the grouting main pipe 11 is further arranged on the grouting main pipe 11.

[0044] The grouting support 10 is used for mounting and supporting other parts of the whole grouting assembly; the grouting support 10 can be a frame structure, a plate structure and the like, as long as it can firmly and stably support other parts of the grouting assembly, which is not specifically limited here.

[0045] The grouting main pipe 11 is vertically arranged, the lower end thereof is an inlet end for being communicated with the outlet of a grouting machine during grouting, and the upper end thereof is an outlet end for being communicated with a pre-buried grouting pipe pre-buried in the secondary lining during grouting. The grouting main pipe 11 can be connected with the grouting support 10 through a clamping structure, a flange structure, a clamp structure and the like, so as to fix and support the grouting main pipe 11 by using the grouting support 10. The grouting pressure gauge 14 is arranged on the grouting main pipe 11, and is used for monitoring the grouting pressure in the grouting main pipe 11 in real time.

[0046] The radar support 12 is mounted on the grouting main pipe 11 to support the radar support 12. A ground-penetrating radar scanner 13 is mounted on the radar support 12 to scan the secondary lining during grouting and display the scan results in real time as images, charts, etc., providing a more intuitive understanding of the grouting process and allowing operators to promptly identify problems and adjust grouting parameters. These grouting parameters include at least grouting pressure and grouting volume.

[0047] The tunnel grouting assembly provided in this application embodiment is used to grout the gap between the secondary lining and the primary support. The specific grouting process is as follows: S1, a detection device is used to perform a moving scan of the tunnel secondary lining to analyze the back cavity conditions and determine the grouting location and the grouting plan for each grouting location; S2, the grouting support 10 is installed on a temporary platform or trolley inside the tunnel, the lower end of the grouting main pipe 11 is connected to the outlet of the grouting machine, and the upper end of the grouting main pipe 11 is connected to the pre-embedded grouting pipe at the grouting location; the grouting machine is started, and grouting is performed according to the preset grouting plan; S3, during the grouting process, the ground-penetrating radar scanner 13 is used to scan the secondary lining structure in real time, and the scanning results are displayed in real time in the form of images, charts, etc. The operator adjusts the grouting pressure and grouting volume in a timely manner according to the scanning results until the scanning results of the ground-penetrating radar scanner 13 show that the grouting effect meets the requirements. After grouting is completed, the entire device is moved to the next grouting location for grouting.

[0048] The tunnel grouting assembly provided in this application embodiment is used to grout the gap between the secondary lining and the primary support. During the grouting process, the ground-penetrating radar scanner 13 can scan the secondary lining structure in real time to check the grouting effect in a timely manner. The operator can adjust the grouting pressure and grouting volume in a timely manner according to the scanning results of the ground-penetrating radar scanner 13, effectively avoiding the occurrence of gaps or uneven grouting. Compared with the prior art, there is no need for repeated grouting, which saves grouting time. At the same time, there is no need to re-drill holes, which helps to reduce labor intensity and construction costs.

[0049] A ground-penetrating radar scanner 13 can be mounted on the radar bracket 12. See also the following embodiments: Figure 1 Two ground-penetrating radar scanners 13 can be installed on the radar bracket 12, and the two ground-penetrating radar scanners 13 are symmetrically arranged on both sides of the grouting main pipe 11.

[0050] Correspondingly, the grouting main pipe 11 is used for supporting the ground penetrating radar scanner 13, ensuring the stability of the ground penetrating radar scanner 13, and the symmetrical arrangement of the ground penetrating radar scanner 13 can provide better force balance and reduce safety hazards caused by shaking or vibration. The two ground penetrating radar scanners 13 can also provide more data points during scanning, enhancing the reliability of grouting effect evaluation; such layout can also scan from different angles at the same time, which helps to reduce errors that may be caused by single-angle scanning. By comparing the data of the two ground penetrating radar scanners 13, possible deviations can be identified and corrected, improving the accuracy of grouting effect evaluation.

[0051] In some embodiments, referring to Figure 1 , the radar support 12 is connected with the grouting main pipe 11 through the rotating seat 15, and the rotating seat 15 can rotate around the grouting main pipe 11. Correspondingly, the rotating seat 15 can make the radar support 12 drive the ground penetrating radar scanner 13 to rotate around the grouting main pipe 11, and then flexibly adjust the position and angle of the ground penetrating radar scanner 13 to meet different scanning needs.

[0052] For example, the rotating seat 15 includes a sleeve that is sleeved on the grouting main pipe 11, the sleeve is connected with the grouting main pipe 11 through a bearing, and the radar support 12 is connected with the sleeve. Of course, the rotating seat 15 can also include other structures as long as it can rotate around the grouting main pipe 11 and install the radar support 12, which is not limited here.

[0053] In some embodiments, referring to Figure 1 , the radar support 12 includes an adjusting arm 121 and a telescopic device 122, the adjusting arm 121 is arranged obliquely from top to bottom, the lower end of the adjusting arm 121 is hinged with the rotating seat 15, the telescopic device 122 is connected between the adjusting arm 121 and the telescopic device 122, and the ground penetrating radar scanner 13 is connected with the upper end of the adjusting arm 121. Correspondingly, by extending or contracting the telescopic device 122, the adjusting arm 121 can be driven to flip up and down in the vertical plane, and then the height of the ground penetrating radar scanner 13 can be adjusted to adapt to different construction environments. Of course, during grouting, the height of the ground penetrating radar scanner 13 can also be adjusted to make the ground penetrating radar scanner 13 contact with the secondary lining to form a fulcrum, and then the secondary lining can be used to assist the support of the entire grouting assembly, improving the stability of the entire grouting assembly after installation, and reducing safety hazards caused by shaking or vibration.

[0054] Exemplarily, the radar support 12 further comprises horizontally arranged support arms 123, two of the adjusting arms 121 and two of the telescopic devices 122, the middle of the support arms 123 is fixedly connected with the rotating base 15, the lower ends of the two adjusting arms 121 are respectively hingedly connected with the two ends of the support arms 123, each of the adjusting arms 121 is further connected with the rotating base 15 through a telescopic device 122, and the upper ends of the two adjusting arms 121 are respectively provided with the ground penetrating radar scanner 13. The telescopic device 122 can comprise a basket screw, a spring or an elastic rope.

[0055] In some embodiments, referring to Figure 1 , the ground penetrating radar scanner 13 is hingedly connected with the upper end of the adjusting arm 121. Accordingly, when the telescopic device 122 is controlled to contract so that the ground penetrating radar scanner 13 contacts the secondary lining during the installation of the entire grouting assembly, the ground penetrating radar scanner 13 can be self-adaptively rotated relative to the adjusting arm 121, so that the ground penetrating radar scanner 13 quickly adapts to the surface shape of the secondary lining, maintains good contact with the secondary lining, and further improves the stability of the support.

[0056] In some embodiments, referring to Figure 1 , a plurality of rollers 16 are arranged on the side of the ground penetrating radar scanner 13 away from the adjusting arm 121. Accordingly, the ground penetrating radar scanner 13 can contact the secondary lining through the rollers 16, and the rollers 16 can also move on the secondary lining to reduce the friction between the ground penetrating radar scanner 13 and the secondary lining when the ground penetrating radar scanner 13 moves.

[0057] In some embodiments, referring to Figure 1 , the grouting main pipe 11 is further provided with a grouting valve 17, the upper end of the grouting main pipe 11 is connected with a grouting access pipe 18, and the lower end of the grouting main pipe 11 is connected with a grouting hose 19. Accordingly, the grouting main pipe 11 can be controlled to be opened or closed through the grouting valve 17, the grouting main pipe 11 can be communicated with the pre-buried grouting pipe in the secondary lining through the grouting access pipe 18, and the grouting main pipe 11 can be communicated with the outlet of the grouting machine through the grouting hose 19. The grouting valve 17 can comprise a ball valve.

[0058] Referring to Figure 2 , Figure 3 , the embodiment of the present application provides a tunnel grouting device, which comprises a grouting assembly 1, a tunnel trolley 2 and a grouting machine 3, the grouting assembly 1 is arranged on the top of the tunnel trolley 2, the grouting assembly 1 is the tunnel grouting assembly provided in the above embodiment, and the lower end of the grouting main pipe 11 is communicated with the outlet of the grouting machine 3.

[0059] The tunnel grouting device provided by the embodiment of the application is used for grouting the gap between the secondary lining 4 and the primary support, and the specific grouting process is as follows: S1, the detection equipment is used to move and scan the secondary lining 4 of the tunnel, the back hole condition is analyzed, the grouting position is determined, and the grouting scheme at each grouting position is determined; S2, the grouting support 10 is installed on the tunnel trolley 2, the lower end of the grouting main pipe 11 is communicated with the outlet of the grouting machine 3, and the upper end of the grouting main pipe 11 is communicated with the pre-buried grouting pipe 5 at the grouting position; the grouting machine 3 is started, and grouting is performed according to the preset grouting scheme; S3, in the grouting process, the geological radar scanner 13 is used to scan the secondary lining structure in real time, and the scanning result is displayed in the form of images, charts and the like in real time, the operator adjusts the grouting pressure and the grouting amount in real time according to the scanning result, and the process is continued until the scanning result of the geological radar scanner 13 shows that the grouting effect meets the requirements. After grouting is completed, the whole device is moved to the next grouting position for grouting.

[0060] The tunnel grouting device provided by the embodiment of the application can scan the secondary lining structure in real time by using the geological radar scanner 13 in the grouting process, the purpose of checking the grouting effect in time is achieved, the operator can adjust the grouting pressure and the grouting amount in real time according to the scanning result of the geological radar scanner 13, and the situation that the gap or the grouting is uneven is effectively avoided; compared with the prior art, the grouting time is saved without repeated grouting, and the labor intensity and the construction cost are reduced without re-drilling.

[0061] The above is only a specific embodiment of the application, but the protection scope of the application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. A tunnel grouting assembly, characterized in that, It includes a grouting support (10), on which an upwardly extending grouting main pipe (11) is provided, on which a radar support (12) is provided, on which a ground-penetrating radar scanner (13) is provided, and on which a grouting pressure gauge (14) for monitoring the grouting pressure inside is also provided.

2. The tunnel grouting assembly according to claim 1, characterized in that, The radar bracket (12) is connected to the grouting main pipe (11) via a rotating seat (15), and the rotating seat (15) can rotate around the grouting main pipe (11).

3. The tunnel grouting assembly according to claim 2, characterized in that, The radar support (12) includes an adjusting arm (121) and a telescopic device (122). The adjusting arm (121) is inclined from top to bottom. The lower end of the adjusting arm (121) is hinged to the rotating seat (15). The telescopic device (122) is connected between the adjusting arm (121) and the telescopic device (122). The ground-penetrating radar scanner (13) is connected to the upper end of the adjusting arm (121).

4. The tunnel grouting assembly according to claim 3, characterized in that, The telescopic device (122) includes a turnbuckle, a spring, or an elastic rope.

5. The tunnel grouting assembly according to claim 3, characterized in that, The ground-penetrating radar scanner (13) is hinged to the upper end of the adjusting arm (121).

6. The tunnel grouting assembly according to claim 4, characterized in that, The ground-penetrating radar scanner (13) has multiple rollers (16) on the side opposite to the adjusting arm (121).

7. The tunnel grouting assembly according to claim 1, characterized in that, The grouting main pipe (11) is also equipped with a grouting valve (17).

8. The tunnel grouting assembly according to claim 1, characterized in that, The upper end of the grouting main pipe (11) is connected to a grouting inlet pipe (18).

9. The tunnel grouting assembly according to claim 1, characterized in that, The lower end of the grouting main pipe (11) is connected to a grouting hose (19).

10. A tunnel grouting device, characterized in that, The grouting assembly includes a grouting component (1), a tunnel trolley (2), and a grouting machine (3). The grouting component (1) is located on the top of the tunnel trolley (2). The grouting component (1) is the tunnel grouting component according to any one of claims 1 to 9. The lower end of the grouting main pipe (11) is connected to the outlet of the grouting machine (3).

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