A support shoe device suitable for a double shield TBM

Abstract

The application discloses a supporting shoe device suitable for a double-shield TBM, which comprises a frame, an arc-shaped plate and a plurality of guide pipe devices arranged in the frame, wherein the outer side of the arc-shaped plate is coated with a negative Poisson's ratio material coating, the guide pipe devices collect data in a normal tunneling process, can compare data when encountering adverse geology, and can quickly fill the cavity. When the device is used, the arc-shaped plate coated with the negative Poisson's ratio material coating can effectively tighten the surrounding rock wall, solves the problem of "slipping" often encountered by traditional supporting shoes, and facilitates tunneling operation of other components. When the TBM supporting shoe encounters a cavity, the guide pipe devices can calculate the volume of the cavity after comparing data, meanwhile, the specially-arranged guide pipes are sequentially opened and closed to complete the filling operation of the cavity, solve the cavity obstruction encountered in the construction process of the double-shield TBM, ensure that the TBM quickly passes through adverse geology such as a broken rock wall, and improve the construction efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underground construction, and more particularly to a supporting shoe device suitable for a double shield TBM. BACKGROUND

[0002] With the development of national science and technology and economy, the investment in national infrastructure is increasing year by year, and higher requirements are put forward for construction safety, environmental protection and efficiency. Therefore, TBM (Tunnel Boring Machine) is widely used in tunnel construction of water conservancy and hydropower, rail transit and municipal engineering. During the TBM tunneling process, the supporting shoe is extended by the transversely telescopic oil cylinder to support the inner wall of the excavated tunnel. Then, the advancing oil cylinder is supported by the supporting shoe device to perform the tunneling work. The supporting shoe provides stable support for the tunneling machine to ensure the normal tunneling posture of the cutter head of the tunneling machine.

[0003] According to different geological conditions, open TBM is mainly used in tunnels with good rock stability and low proportion of soft surrounding rock, and shield TBM is mainly used in tunnels with a high proportion of soft surrounding rock. Double shield TBM is mainly used in tunnels with alternating soft and hard surrounding rock. Due to rock movement and complex and variable geological conditions, advanced detection of adverse geological sections is needed when approaching the adverse geological section to reduce construction risk and difficulty. However, advanced detection of adverse geological sections cannot detect all adverse geological conditions. Common sudden adverse geological conditions include: during the TBM construction of a certain tunnel, there is a cavity at the TBM supporting shoe, which hinders the TBM construction and reduces the tunneling efficiency. In addition to the common sudden adverse geological conditions, the traditional supporting shoe will "slip" due to the design of the structure itself, that is, the supporting shoe cannot provide sufficient support.

[0004] In summary, how to solve the cavity obstruction encountered during the construction of the double shield TBM and ensure the rapid passage of the TBM through the adverse geological conditions such as the surrounding rock broken zone is a problem that needs to be solved by the technical personnel in the field. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a supporting shoe device suitable for a double shield TBM, which can solve the cavity obstruction encountered during the construction of the double shield TBM and ensure the rapid passage of the TBM through the adverse geological conditions such as the surrounding rock broken zone.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] A kind of support shoe device suitable for double shield TBM, comprising: frame, the arc plate for supporting surrounding rock cave wall for being arranged in the outer side of the frame and multiple conduit devices for being arranged in the interior of the frame, the conduit device is used to collect the cavity data of TBM support shoe, the cavity data is compared with the support shoe data collected when normal excavation, the volume of the cavity is calculated, and the cavity is filled.

[0008] Preferably, the outer side of the arc plate is coated with a film of negative Poisson's ratio material.

[0009] Preferably, multiple conduit devices are distributed in the frame in a Voronoi manner.

[0010] Preferably, the conduit device includes a round pipe, a claw buckle type cover plate arranged at the front end of the round pipe, a double-layer pipeline arranged at the rear end of the round pipe, a micro motor for controlling the opening and closing of the claw buckle type cover plate, and a collector for collecting the cavity data, comparing the cavity data with the support shoe data, and calculating the volume of the cavity.

[0011] The double-layer pipeline is in communication with a container containing pea gravel to fill the cavity, and the micro motor and the collector are both arranged on the side of the round pipe.

[0012] Preferably, the arc plate is provided with multiple through holes in communication with the round pipes.

[0013] Preferably, the frame includes a top plate arranged at the top of the arc plate, a bottom plate arranged at the bottom of the arc plate, a first sealing plate vertically connected with the top plate, a second sealing plate vertically connected with the bottom plate, and a side plate for connecting the first sealing plate and the second sealing plate.

[0014] Preferably, the top plate, the arc plate, the bottom plate, the first sealing plate, the second sealing plate and the side plate are of an integrated structure.

[0015] Preferably, the interior of the frame is provided with multiple horizontally arranged horizontal rib plates and multiple vertical ribs vertically connected with the horizontal rib plates.

[0016] Preferably, the horizontal rib plates and the frame, the vertical ribs and the frame, and the horizontal rib plates and the vertical ribs are all fixed by welding.

[0017] In the use of the provided support shoe device for double shield TBM, the arc-shaped plate outside the frame can tighten the surrounding rock wall to realize the support shoe operation, so that other components can perform the tunneling operation. At the same time, the guide pipe device can collect monitoring data in real time at the support shoe, compare the data collected during normal tunneling, calculate the cavity range at the support shoe of the TBM, and use the guide pipe device at a specific position to quickly fill the cavity, so as to solve the cavity obstruction encountered during the construction of the double shield TBM, ensure the TBM to pass through the broken rock belt and other adverse geology quickly, and improve the construction efficiency.

[0018] In summary, the provided support shoe device for double shield TBM can solve the cavity obstruction encountered during the construction of the double shield TBM, and ensure the TBM to pass through the broken rock belt and other adverse geology quickly. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0020] Figure 1 The structure diagram of the provided support shoe device for double shield TBM is shown in the figure.

[0021] Figure 2 The front view of Figure 1

[0022] Figure 3 The coating diagram of the arc-shaped plate is shown in the figure.

[0023] Figure 4 The structure diagram of the guide pipe device is shown in the figure.

[0024] Figure 5 The filling diagram of the guide pipe device is shown in the figure.

[0025] Figure 6 The arrangement diagram of the guide pipe device is shown in the figure.

[0026] Figures 1-6 In the figure:

[0027] 1 is an arc-shaped plate, 2 is a top plate, 3 is a bottom plate, 4 is a first sealing plate, 5 is a side plate, 6 is a horizontal rib plate, 7 is a vertical rib, 8 is a guide pipe device, 801 is a claw buckle cover plate, 802 is a micro motor, 803 is a collector, 804 is a double-layer pipeline, 805 is an unfilled pipe, 806 is a filled pipe, 9 is a second sealing plate, 10 is a frame, 11 is a film, 12 is a cavity, and 13 is a pea gravel.​ DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described 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 other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0029] The core of the present application is to provide a support shoe device suitable for a double shield TBM, which can solve the cavity obstruction encountered in the construction process of the double shield TBM, and ensure the TBM to pass through the broken zone of surrounding rock and other adverse geology quickly.

[0030] Please refer to Figures 1-6 , wherein, Figure 1 is a structural schematic view of the support shoe device suitable for the double shield TBM provided by the present application; Figure 2 is a front view of Figure 1 ; Figure 3 is a coating schematic view of the arc-shaped plate; Figure 4 is a structural schematic view of the catheter device; Figure 5 is a filling schematic view of the catheter device; Figure 6 is a distribution schematic view of the catheter device.

[0031] The specific embodiment provides a support shoe device suitable for a double shield TBM, which comprises a frame 10, an arc-shaped plate 1 provided outside the frame 10 and used for supporting the surrounding rock wall, and a plurality of catheter devices 8 provided inside the frame 10, the catheter devices 8 are used for collecting cavity 12 data of the support shoe of the TBM, comparing the cavity 12 data with support shoe data collected during normal tunneling, calculating the volume of the cavity 12, and filling the cavity 12.

[0032] In actual application, the shape, structure, size and position of the frame 10, the arc-shaped plate 1 and the catheter device 8 can be determined according to actual conditions and actual needs.

[0033] When the support shoe device suitable for the double shield TBM provided by the present application is used, the arc-shaped plate 1 provided outside the frame 10 can support the surrounding rock wall to realize the support shoe operation, so that other components can perform the tunneling operation. At the same time, the catheter device 8 can collect monitoring data at the support shoe in real time. When a sudden geological condition is encountered, the catheter device 8 can compare the data collected during normal tunneling, calculate the range of the cavity 12 at the support shoe of the TBM, and use the catheter device 8 at a specific position to fill the cavity 12 quickly, so as to solve the cavity 12 obstruction encountered in the construction process of the double shield TBM, ensure the TBM to pass through the broken zone of surrounding rock and other adverse geology quickly, and improve the construction efficiency.

[0034] In summary, the supporting shoe device suitable for double shield TBM provided by the application can solve the problem of cavity 12 hindering the construction of double shield TBM, and ensure the TBM to pass through the broken zone of surrounding rock and other adverse geology quickly.

[0035] On the basis of the above-mentioned embodiments, preferably, the outer side of the arc-shaped plate 1 is coated with a film 11 of negative Poisson's ratio material.

[0036] It should be noted that the film 11 made of negative Poisson's ratio material has special mechanical properties, which shrinks (expands) transversely under the action of uniaxial pressure (tension), and is stronger than traditional materials in terms of shear bearing capacity, fracture resistance, energy absorption and dissipation capacity, and pressure resistance. By setting the film 11 of negative Poisson's ratio material on the outer side of the arc-shaped plate 1, the strength of the material is optimized and upgraded, thereby providing more stable support force during the normal tunneling process of the double shield TBM, thereby solving the problem of "slip" often encountered by traditional supporting shoes. Moreover, in the event of an emergency, i.e. in the event of a cavity 12 at the supporting shoe of the TBM, pea gravel 13 can be sprayed through the conduit device 8 to improve the problem of the cavity 12, and the film 11 of negative Poisson's ratio material can provide protection for the outer arc surface to achieve a longer service life.

[0037] Preferably, a plurality of conduit devices 8 are distributed in the frame 10 in a Voronoi manner. The Voronoi distribution is a way of spatial division, and by using its characteristics, it can be ensured that the filling rate in the field near each conduit device 8 is the most stable and fastest, so as to ensure that the volume of the cavity 12 corresponding to the position range of the conduit device 8 can be filled quickly and accurately within an effective time. The filling diagram of the conduit device 8 is shown in Figure 5 , which can include two types of unfilled pipes 805 and filled pipes 806.

[0038] Preferably, the conduit device 8 includes a circular pipe, a claw buckle type cover plate 801 arranged at the front end of the circular pipe, a double-layer pipe 804 arranged at the rear end of the circular pipe, a micro motor 802 for controlling the opening and closing of the claw buckle type cover plate 801, and a collector 803 for collecting data of the cavity 12, comparing the data of the cavity 12 with the data of the supporting shoe, and calculating the volume of the cavity 12; the double-layer pipe 804 is in communication with a container containing pea gravel 13 to fill the cavity 12, and the micro motor 802 and the collector 803 are arranged on the side of the circular pipe.

[0039] It should be noted that the collector 803 mounted on the circular pipe can detect and collect data between the TBM supporting shoe and the surrounding rock wall during the normal tunneling process, and by the special properties of the negative Poisson's ratio material coated on the arc-shaped plate 1, the double shield TBM can complete the tunneling work more quickly under the more stable support provided by the arc-shaped plate 1, thereby solving the problem of "slip" often encountered by traditional supporting shoes.

[0040] It should be noted that when the TBM support shoe encounters the cavity 12, the TBM support shoe cavity 12 data is collected by the collector 803 and compared with the previously collected data during normal tunneling, and then the specific volume of the current cavity 12 and the specific amount of pea gravel 13 and other materials required are quickly calculated, and then the claw buckle type cover plate 801 is opened by the micro motor 802 control to allow the pea gravel 13 and other materials to pass through the double-layer pipe 804 at the rear end of the circular pipe to fill the cavity 12 position. When the circular pipe sprays pea gravel 13 and other materials, the service life of the overall support shoe can be maintained as much as possible due to the support of the special coating of the arc plate 1.

[0041] In addition, it should be noted that since the catheter device 8 is installed at different positions, the claw buckle type cover plate 801 at each position can be opened and closed by the micro motor 802 control to facilitate filling the cavity 12 at a specific position, so that the double shield TBM can be adjusted to the correct tunneling state faster. Moreover, the claw buckle type cover plate 801 can prevent falling slag during normal tunneling, and the catheter device 8 can achieve precise landfill of the cavity 12 position during subsequent material filling in combination with circuit control and data analysis; the arrangement mode of the catheter device 8 follows the Voronoi expansion, which can meet the needs of different working conditions.

[0042] Preferably, the arc plate 1 is provided with a plurality of through holes in communication with the circular pipe to ensure the smooth progress of the cavity 12 filling operation.

[0043] On the basis of the above embodiment, preferably, the frame 10 includes a top plate 2 arranged on the top of the arc plate 1, a bottom plate 3 arranged on the bottom of the arc plate 1, a first sealing plate 4 connected perpendicularly to the top plate 2, a second sealing plate 9 connected perpendicularly to the bottom plate 3, and a side plate 5 for connecting the first sealing plate 4 and the second sealing plate 9, to ensure the structural stability of the frame 10, and the connection of each plate can form an inner cavity for placing the catheter device 8.

[0044] Preferably, the top plate 2, the arc plate 1, the bottom plate 3, the first sealing plate 4, the second sealing plate 9 and the side plate 5 are of an integrated structure to facilitate simplifying the assembly process.

[0045] Preferably, the inside of the frame 10 is provided with a plurality of horizontally arranged horizontal rib plates 6 and a plurality of vertical ribs 7 connected perpendicularly to the horizontal rib plates 6 to ensure the overall strength of the frame 10 structure and avoid pressure loss and deformation during tunneling.

[0046] Preferably, the horizontal rib plate 6 and the frame 10, the vertical rib 7 and the frame 10, and the horizontal rib plate 6 and the vertical rib 7 are all fixed by welding to ensure the connection effect of each component.

[0047] It should be noted that the first sealing plate 4 and the second sealing plate 9 mentioned in the present application are only for distinguishing the different positions, and there is no sequence.

[0048] In addition, it should be noted that the "top and bottom" and other indications of the orientation or position relationship in the present application are based on the orientation or position relationship shown in the drawings, and are only for the convenience of simplifying the description and facilitating understanding, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0049] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. Any combination of all the embodiments provided by the present application is within the protection scope of the present application, and will not be repeated here.

[0050] The supporting shoe device suitable for the double shield TBM provided by the present application is described in detail above. The principle and implementation manner of the present application are described by applying specific examples in the present document. The above description of the embodiments is only for helping to understand the method of the present application and its core idea. It should be noted that those skilled in the art can make some improvements and modifications to the present application without departing from the principle of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A boot support device suitable for dual-shield TBMs, characterized in that, include: The frame (10), the arc-shaped plate (1) located outside the frame (10) for supporting the tunnel wall of the surrounding rock, and a plurality of guide pipe devices (8) located inside the frame (10) are used to collect data of the cavity (12) of the TBM support shoe, compare the data of the cavity (12) with the support shoe data collected during normal tunneling, calculate the volume of the cavity (12), and fill the cavity (12); the outer side of the arc-shaped plate (1) is coated with a film (11) of negative Poisson's ratio material; the plurality of guide pipe devices (8) are distributed in a Voronoi pattern inside the frame (10); the guide pipe devices (8) include The system comprises a circular tube, a claw-type cover plate (801) located at the front end of the circular tube, a double-layer pipeline (804) located at the rear end of the circular tube, a micro motor (802) for controlling the opening and closing of the claw-type cover plate (801), and a collector (803). The collector (803) is used to collect data of the cavity (12), compare the data of the cavity (12) with the data of the support shoe, and calculate the volume of the cavity (12). The double-layer pipeline (804) is connected to a container filled with pea gravel (13) to fill the cavity (12). The micro motor (802) and the collector (803) are both located on the side of the circular tube.

2. The support boot device for a dual-shield TBM according to claim 1, characterized in that, The arc-shaped plate (1) is provided with a plurality of through holes that are distributed and connected to the circular tube.

3. The support boot device for a dual-shield TBM according to claim 1 or 2, characterized in that, The frame (10) includes a top plate (2) at the top of the arc plate (1), a bottom plate (3) at the bottom of the arc plate (1), a first sealing plate (4) perpendicularly connected to the top plate (2), a second sealing plate (9) perpendicularly connected to the bottom plate (3), and a side plate (5) for connecting the first sealing plate (4) and the second sealing plate (9).

4. The support boot device for a dual-shield TBM according to claim 3, characterized in that, The top plate (2), the arc plate (1), the bottom plate (3), the first sealing plate (4), the second sealing plate (9), and the side plate (5) are an integral structure.

5. The support boot device for a dual-shield TBM according to claim 1 or 2, characterized in that, The frame (10) has multiple horizontally arranged horizontal stiffeners (6) and multiple vertical stiffeners (7) that are vertically connected to the horizontal stiffeners (6).

6. The support boot device for a dual-shield TBM according to claim 5, characterized in that, The horizontal stiffener (6) and the frame (10), the vertical stiffener (7) and the frame (10), and the horizontal stiffener (6) and the vertical stiffener (7) are all fixed by welding.

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