Tunneling machine synchronous segment wall back grouting system, tunneling machine and grouting method

Abstract

The application discloses a tunneling machine synchronous pipe piece wall back grouting system, a tunneling machine and a grouting method. The tunneling machine synchronous pipe piece wall back grouting system comprises a rack (1), a first track (2) installed on the rack (1) and extending along the length direction of the tunneling machine, a moving part (3) movably installed on the first track (2), and a grouting device (4) installed below the moving part (3) and configured to rotate relative to the moving part (3) in a plane perpendicular to the first track (2) to perform grouting reinforcement on multiple orientations of the bottom of a tunnel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel boring machines, in particular to a tunneling machine synchronous segment wall back grouting system, a tunneling machine and a grouting method. BACKGROUND

[0002] In the process of tunnel construction in soft soil layer, it is found that the line subsidence on the tunnel forming segment is a major construction problem, especially for high-speed rail projects with high operating line requirements. The traditional secondary grouting system can only reinforce the local cavity behind the segment wall, and cannot effectively solve this construction problem. SUMMARY

[0003] The present application aims to provide a tunneling machine synchronous segment wall back grouting system, a tunneling machine and a grouting method to improve the problem of line subsidence on the tunnel forming segment in the prior art.

[0004] According to one aspect of an embodiment of the present application, the present application provides a tunneling machine synchronous segment wall back grouting system, the grouting system comprising:

[0005] a rack;

[0006] a first track mounted on the rack and extending along the length direction of the tunneling machine;

[0007] a moving component movably mounted on the first track; and

[0008] a grouting device mounted below the moving component and configured to rotate relative to the moving component in a plane perpendicular to the first track to grout and reinforce multiple directions of the bottom of the tunnel.

[0009] In some embodiments, the grouting device comprises:

[0010] a bearing component mounted on the moving component and configured to rotate relative to the moving component in a plane perpendicular to the first track;

[0011] a drill mounted on the bearing component and configured to move radially relative to the bearing component along an axis of rotation of the grouting device relative to the moving component, the drill comprising a drill bit having a grouting hole.

[0012] In some embodiments, the grouting device further comprises an extension component mounted on the bearing component and configured to move radially relative to the bearing component, the drill being mounted on the extension component.

[0013] In some embodiments, the drill is configured to move radially relative to the extension component.

[0014] In some embodiments, the moving component comprises a second track in an arc shape, and the grouting device is configured to move along the second track to rotate the grouting device in a plane perpendicular to the first track.

[0015] In some embodiments, the grouting system further comprises a box culvert assembling device for assembling the box culvert, the box culvert assembling device being mounted on the rack and configured to move along the length direction of the tunneling machine.

[0016] In some embodiments, the grouting system further comprises a first driving component for driving the moving component to move along the length direction of the tunneling machine, and a controller in signal connection with the first driving component and the box culvert assembling device respectively, the controller being configured to:

[0017] after the box culvert assembling device completes assembling the box culvert, control the grouting device to move to the front of the assembled box culvert to perform grouting reinforcement on the bottom of the tunnel;

[0018] after the grouting device completes the grouting reinforcement on the bottom of the tunnel, control the grouting device to move forward, and then control the box culvert assembling device to assemble the box culvert on the bottom of the tunnel after the grouting reinforcement.

[0019] According to another aspect of the present application, there is also provided a tunneling machine comprising the grouting system described above.

[0020] According to another aspect of the present application, there is also provided a grouting method of the grouting system described above, the grouting method comprising:

[0021] controlling the grouting device to move along the length direction of the tunneling machine to the front of the assembled box culvert;

[0022] controlling the grouting device to perform grouting reinforcement on the bottom of the tunnel;

[0023] after the grouting device completes the grouting reinforcement on the bottom of the tunnel, controlling the box culvert assembling device to assemble the box culvert on the bottom of the tunnel after the grouting reinforcement.

[0024] In some embodiments, after the grouting device completes the grouting reinforcement on the bottom of the tunnel, the device is controlled to move forward, and then the box culvert assembling device is controlled to assemble the box culvert on the bottom of the tunnel after the grouting reinforcement.

[0025] By applying the technical solutions of the present application, the grouting system can perform grouting reinforcement on the bottom of the tunnel, which can effectively improve the firmness of the bottom of the tunnel and is conducive to improving the problem of route settlement on the segments after tunnel forming in the related art.

[0026] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative labor.

[0028] Fig. 1 The structural schematic diagram of the tunneling machine is shown, which is an embodiment of the present application.

[0029] Fig. 2 The structural schematic diagram of the cross section of the tunneling machine is shown, which is an embodiment of the present application.

[0030] Fig. 3 The structural schematic diagram of the grouting device of the tunneling machine is shown, which is an embodiment of the present application.

[0031] Fig. 4 The structural schematic diagram of the tunneling machine in the grouting process is shown, which is an embodiment of the present application.

[0032] Fig. 5 The structural schematic diagram of the cross section of the tunneling machine in the grouting process is shown, which is an embodiment of the present application.

[0033] Fig. 6 The structural schematic diagram of the tunneling machine in the box culvert assembling process is shown, which is an embodiment of the present application.

[0034] Fig. 7 The structural schematic diagram of the cross section of the tunneling machine in the box culvert assembling process is shown, which is an embodiment of the present application.

[0035] Fig. 8 The structural schematic diagram of the cross section of the tunnel is shown, which is constructed by the tunneling machine, which is an embodiment of the present application.

[0036] In the drawings:

[0037] 1, frame; 2, first track; 3, moving part; 4, grouting device; 41, bearing part; 42, telescopic part; 43, drilling machine; 431, drill bit; 432, drill rod; 433, drilling machine power device; 5, box culvert; 6, segment; 7, box culvert assembling device; 8, reinforcing device. DETAILED DESCRIPTION

[0038] Clearly, the embodiments described are only some embodiments of the application and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application or its application or uses. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of the present application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the present specification and claims can be referred to in connection with the above description of drawings and terms "include" and "have" and their any variations used herein are intended to cover the inclusions "consist of".

[0040] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that the embodiments described herein are merely examples from a whole class of embodiments that can be claimed as falling within the scope of the application.

[0041] In the description of the application, it should be noted that, unless otherwise specified, the meaning of "a plurality of" is more than two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error.

[0042] The orientation words appearing in the following description are the directions shown in the drawings, and are not limited to the specific structure of the application. In the description of the application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "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. 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] If not specifically stated, the "comprising" and "including" mentioned in the present application represent open-ended, and can also be closed-ended. For example, the "comprising" and "including" can represent that other components not listed can also be included, or only the listed components can be included.

[0044] If not specifically stated, the term "or" in the present application is inclusive. For example, the phrase "A or B" represents "A, B, or both A and B". More specifically, any of the following conditions satisfies the condition "A or B": A is true (or exists) and B is false (or does not exist); A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

[0045] In combination Figs. 1-2 As shown, in order to improve the problem of route settlement on the pipe piece 6 after tunnel forming in the related art, the present embodiment provides a tunneling machine synchronous pipe piece wall back grouting system, the grouting system is used for grouting behind the tunnel arm (i.e. the inner side), the grouting system comprises a rack 1, a first track 2, a moving part 3 and a grouting device 4. The first track 2 is installed on the rack 1 and extends along the length direction of the tunneling machine; the moving part 3 is movably installed on the first track 2; the grouting device 4 is installed below the moving part 3 and is configured to rotate relative to the moving part 3 in a plane perpendicular to the first track 2, so as to grout and reinforce multiple orientations of the bottom of the tunnel.

[0046] The tunneling machine synchronous pipe piece wall back grouting system of the present embodiment can grout and reinforce the bottom of the tunnel, which can effectively improve the firmness of the bottom of the tunnel, and is conducive to improving the problem of route settlement on the pipe piece 6 after tunnel forming in the related art.

[0047] Referring to Fig. 3 , the grouting device 4 of the present embodiment comprises a bearing part 41 installed on the moving part 3 and a drilling machine 43 installed on the bearing part 41, the drilling machine 43 is configured to move radially along the axis of rotation of the grouting device 4 relative to the bearing part 41, and the drilling machine 43 comprises a drill bit 431, the drill bit 431 is provided with a grouting hole.

[0048] The bearing part 41 can rotate relative to the moving part 3 in a plane perpendicular to the first track 2, thereby driving the drilling machine 43 to grout at multiple point positions in the circumferential direction of the tunnel in turn, referring to Fig. 5 In the present embodiment, the grouting device 4 is installed below the moving part 3, and the drill bit 431 of the drilling machine 43 faces downward to grout at the bottom of the tunnel, thereby improving the firmness of the bottom of the tunnel, and being conducive to improving the problem of route settlement on the pipe piece 6 after tunnel forming in the related art.

[0049] The drill 43 is configured to move relative to the bearing part 41 along a radial direction (generally up and down direction) of an axis of rotation of the grouting device 4 relative to the moving part 3 to provide a feed stroke for the drilling depth.

[0050] The drill 43 is a combination of drilling, grouting, pressure monitoring, sewage recovery, pressure balance maintaining and other functions of the grouting system. The drill bit 431 is a multi-mode drill bit, which includes a multi-hole pipe, a pressure monitoring system, an automatic grouting system, a pressure balance system and a sewage recovery system, and can realize automatic detection of grouting hole pressure and pressure balance maintaining. The multi-hole pipe integrates multiple functions such as transmission of pressure in the detection hole to the control center, ensuring that the pressure in the hole is a constant value, actively sucking excess mud, and actively injecting cement slurry. The drill bit 431 is not limited to grouting, pressure monitoring, sewage recovery and other functions, and can realize other functions according to improvement

[0051] According to different geological conditions, various parameters of the drill bit 431 can be set to meet various geological reinforcement depths, and the pile type can be determined according to the type of the drill bit, for example, a vertical pile can select ordinary grouting, a rotary jet pile can select rotary jet method, etc.

[0052] In some embodiments, the grouting device 4 further comprises a telescopic part 42 installed on the bearing part 41 and configured to move relative to the bearing part 41 along the radial direction, and the drill 43 is installed on the telescopic part 42. The telescopic part 43 is extended or retracted relative to the bearing part 41 along the radial direction of the axis of rotation of the grouting device 4 relative to the moving part 3 to drive the drill 43 to move along the radial direction to provide a feed stroke for the drilling depth.

[0053] In some embodiments, the grouting device 4 further comprises a first distance sensor for detecting the distance of the telescopic part 42 moving relative to the bearing part 41, so as to control the telescopic part 42 to move a set distance relative to the bearing part 41.

[0054] The drill 43 further comprises a drill rod 432 connected with the drill bit 431 and a drill power device 433 connected with the drill rod 432. The drill rod 432 is a power-driven telescopic mechanism, and the drill 43 is optionally configured to move relative to the telescopic part 42 along the radial direction to realize the drill rod 432 extending or retracting relative to the telescopic part 42 along the radial direction. The extension direction of the drill rod 432 is consistent with the moving direction of the telescopic part 42 relative to the bearing part 41. The drill 43 further comprises a second distance sensor for detecting the moving distance of the drill rod 432, so as to control the drill rod 432 to move a set distance, thereby realizing a predetermined drilling depth.

[0055] In some embodiments, the moving component 3 comprises a second track in an arc shape, and the grouting device 4 is configured to move along the second track to rotate the grouting device 4 in a plane perpendicular to the first track 2. The grouting device 4 moves along the second track in an arc shape to realize the rotation of the grouting device 4 in the plane perpendicular to the first track 2.

[0056] In some embodiments, the grouting system further comprises a box culvert assembling device 7 for assembling the box culvert 5, the box culvert assembling device 7 being mounted on the gantry 1 and configured to move along the length direction of the tunneling machine. In some embodiments, the box culvert assembling device 7 comprises a box culvert crane for assembling the box culvert.

[0057] The segment 6 for tunnel forming and tunnel supporting is provided with grouting holes for providing points for grouting, and a plurality of grouting holes are arranged along the circumferential direction of the segment 6.

[0058] In some embodiments, the grouting system further comprises a first driving component for driving the moving component 3 to move along the length direction of the tunneling machine, and a controller in signal connection with the first driving component and the box culvert assembling device 7 respectively, the controller being configured to:

[0059] After the box culvert assembling device 7 completes the assembly of the box culvert 5, the grouting device 4 is controlled to move to the front of the assembled box culvert 5 to perform grouting reinforcement on the bottom of the tunnel;

[0060] After the grouting device 4 completes the grouting reinforcement on the bottom of the tunnel, the grouting device 4 is controlled to move forward, and then the box culvert assembling device 7 is controlled to assemble the box culvert 5 on the bottom of the tunnel after the grouting reinforcement.

[0061] Fig. 4 and Fig. 5 The process of segment wall back deep hole grouting of the embodiment of the present application is shown. After the assembly of the box culvert is completed, the grouting device 4 is moved to the front of the assembled box culvert 5 under the driving of the driving device. At this time, the drill 43 can rotate left and right along the second track in an arc shape to perform grouting at different points of the segment 6, and the drill rod 432 and the telescopic mechanism can move up and down along the bearing component 41 to form reinforcement piles 8 at different depths. A signal receiving system is arranged on the second track in an arc shape. When the assembly of the box culvert is completed and the box culvert assembling device 7 drives away, the box culvert crane transmits a signal to the second track in an arc shape. The second track in an arc shape drives to the grouting area in front of the assembled box culvert, and the construction parameters are given to the drill in real time according to the geological conditions explored in the early stage to perform segment wall back deep hole grouting reinforcement. The whole process can be realized without manual operation.

[0062] Referring to Fig. 6 and Fig. 7The schematic diagram shows that the grouting device 4 drives away from the grouting area, and in order not to affect the assembly of the next box culvert 5, the grouting device 4 needs to move forward to provide space for the assembly of the next box culvert. When the grouting device 4 drives away from the grouting area, a signal can be sent to the box culvert crane. After the box culvert assembly device 7 receives the signal, it drives to the lower part of the rack 1 to assemble the box culvert. In this way, the whole tunnel can be automatically grouted and reinforced after the pipe wall.

[0063] In this embodiment, the rack carrying the first guide rail includes the equipment bridge of the tunneling machine. Of course, the rack carrying the function can also be selected to other positions according to the grouting point and the construction process.

[0064] According to another aspect of the present application, a tunneling machine is also provided, which includes the grouting system described above.

[0065] According to another aspect of the present application, a grouting method of the grouting system described above is also provided, which includes:

[0066] Controlling the grouting device 4 to move along the length direction of the tunneling machine to the front of the assembled box culvert 5;

[0067] Controlling the grouting device 4 to grout and reinforce the bottom of the tunnel;

[0068] After the grouting device 4 completes the grouting and reinforcement of the bottom of the tunnel, controlling the box culvert assembly device 7 to assemble the box culvert 5 on the bottom of the tunnel after the grouting and reinforcement.

[0069] The tunneling machine synchronous pipe wall grouting system of this embodiment can grout and reinforce the bottom of the tunnel, which can effectively improve the firmness of the bottom of the tunnel and is beneficial to improve the problem of route settlement on the pipe 6 after the tunnel is formed.

[0070] In some embodiments, after the grouting device 4 completes the grouting and reinforcement of the bottom of the tunnel, the grouting device 4 moves forward, and then the box culvert assembly device 7 is controlled to assemble the box culvert 5 on the bottom of the tunnel after the grouting and reinforcement. After grouting, the grouting device 4 is moved forward by a certain distance, which is beneficial to ensure the working space of the box culvert assembly device 7.

[0071] In this application, in order to solve the problem of route settlement on the pipe 6 after the tunnel is formed, a wall deep hole grouting system is provided, which is divided into general deep hole grouting reinforcement and jet grouting pile reinforcement (MJS) according to the reinforcement diameter. The grouting system can select to carry different processes such as ordinary jet or jet grouting according to the geology.

[0072] The grouting system of the embodiment is a synchronous pipe segment wall rear deep hole grouting system which can be carried on the upper part of the tunneling machine, mainly comprising a moving part 3 and a carried deep hole grouting system (MJS), and the deep hole grouting system comprises a multi-mode drill bit, a large-angle rotary telescopic drill rod and an intelligent detection system.

[0073] The grouting system can realize shield tunneling while grouting, does not affect other construction procedures, realizes synchronous grouting of the tunneling machine, and can effectively prevent the pipe segment from settling after grouting.

[0074] Therefore, according to the application, the grouting effect of the shield can be more efficiently realized, the tunneling while grouting avoids subsequent repeated construction, reduces construction procedures, improves construction efficiency, effectively prevents route settlement, and the construction method is simple and feasible, the device is simple and easy to manufacture, and can be widely applied to tunnel construction.

[0075] The above is only an exemplary embodiment of the application and is not used to limit the application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A synchronous segment wall back grouting system of a tunneling machine, characterized in that, Comprising: a rack (1); a first track (2) mounted on the rack (1) and extending along a length direction of the tunneling machine; a moving component (3) movably mounted on the first track (2); and a grouting device (4) mounted below the moving component (3) and configured to rotate relative to the moving component (3) in a plane perpendicular to the first track (2) to grout and reinforce multiple positions of a bottom of a tunnel, the grouting system further comprising a box culvert assembling device (7) for assembling a box culvert (5), the box culvert assembling device (7) being mounted on the rack (1) and configured to move along the length direction of the tunneling machine, the grouting system further comprising a first driving component for driving the moving component (3) to move along the length direction of the tunneling machine and a controller signal connected with the first driving component and the box culvert assembling device (7) respectively, the controller being configured to: control the grouting device (4) to move to a front of the assembled box culvert (5) after the box culvert assembling device (7) completes assembling the box culvert (5) to grout and reinforce the bottom of the tunnel; control the grouting device (4) to move forward after the grouting device (4) completes grouting and reinforcing the bottom of the tunnel, and then control the box culvert assembling device (7) to assemble the box culvert (5) on the bottom of the tunnel after grouting and reinforcing.

2. The grouting system of claim 1, wherein the grouting device (4) comprising: a bearing component (41) mounted on the moving component (3) and configured to rotate relative to the moving component (3) in the plane perpendicular to the first track (2); a drill rig (43) mounted on the bearing component (41) and configured to move radially relative to the bearing component (41) along an axis of rotation of the grouting device (4) relative to the moving component (3), the drill rig (43) comprising a drill bit (431) provided with grouting holes.

3. The grouting system of claim 2, wherein, the grouting device (4) further comprising an extension component (42) mounted on the bearing component (41) and configured to move radially relative to the bearing component (41), the drill rig (43) being mounted on the extension component (42).

4. The grouting system of claim 3, wherein, the drill rig (43) is configured to move radially relative to the extension component (42).

5. The grouting system of claim 1, wherein, the moving component (3) comprises a second track in an arc shape, the grouting device (4) being configured to move along the second track to rotate the grouting device (4) in the plane perpendicular to the first track (2).

6. A heading machine characterized by The grouting system according to any one of claims 1 to 5.

7. A method of injecting the slurry system according to any one of claims 1 to 5, characterized by, Comprising: controlling the grouting device (4) to move to a front of the assembled box culvert (5) along the length direction of the tunneling machine; controlling the grouting device (4) to grout and reinforce the bottom of the tunnel; controlling the box culvert assembling device (7) to assemble the box culvert (5) on the bottom of the tunnel after grouting and reinforcing.

8. The grouting method according to claim 7, characterized in that, After the grouting device (4) completes the complete grouting reinforcement of the bottom of the tunnel, the grouting device (4) is controlled to move forward, and then the box culvert assembling device (7) is controlled to assemble the box culvert (5) on the bottom of the tunnel after the complete grouting reinforcement.

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