Mould grouting equipment for secondary lining of operating railway tunnel

Abstract

The utility model relates to the technical field of secondary lining grouting, in particular to grouting equipment with a mold for secondary lining of an operation railway tunnel. Comprising a grouting machine, a grout outlet pipe connected with the grouting machine, a grouting pump arranged on a pipe section of the grout outlet pipe, a grout supply pipe communicated with one end of the grout outlet pipe, a grouting hard pipe communicated with one end of the grout supply pipe, a connecting flange connected to the grouting hard pipe in a sleeving mode and a pressure monitoring mechanism. The sealing mechanism is communicated with the upper side of the connecting flange, the lifting mechanism is arranged on the lower side of the connecting flange and connected with the grouting hard pipe, and the grouting hard pipe can longitudinally slide in the sealing mechanism through the lifting mechanism; in the grouting process, the equipment can flexibly adjust and lift the grouting height of the grouting hard pipe to ensure that grout is uniformly distributed in a gap behind a secondary lining, and the situation of insufficient local grouting or excessive grouting is avoided, so that the disease treatment effect is improved, and the flexibility and adaptability of the construction process are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to secondary lining grouting technical field, concretely is a kind of mould grouting equipment for operating railway tunnel secondary lining. BACKGROUND

[0002] In the process of railway tunnel construction and operation, due to the influence of construction technology, geological conditions and other factors, there are often gaps, cavities or non-dense phenomena between the secondary lining concrete and the initial support shotcrete of the tunnel. These diseases not only affect the structural stability and durability of the tunnel, but also may pose a serious threat to railway operation safety. For example, after a certain period of operation, a railway tunnel appeared cracks in some parts of the tunnel due to the existence of cavities behind the secondary lining, and water seepage phenomenon appeared on the surface of the lining. When the train passes, the vibration at the crack increases significantly, which poses a hidden danger to train safety. For another example, during the regular inspection of another tunnel, it was found that there were large cavities behind the secondary lining, which reduced the load-bearing capacity of the tunnel structure. If not timely remedied, it may cause tunnel collapse and other serious accidents.

[0003] At present, although some grouting construction equipment has tried to solve the problem of cavities behind the secondary lining of the tunnel to some extent, these equipment generally has some limitations. Specifically, the grouting operation of the existing equipment relies on the insertion of fixed-height hard pipes into the gaps of the secondary lining, so that the grouting height of the grouting hard pipe cannot be flexibly adjusted and lifted according to actual needs. This defect leads to the situation of local insufficient grouting or excessive grouting, which not only affects the disease remediation effect, but also makes the construction process lack of flexibility and adaptability. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a mould grouting equipment for operating railway tunnel secondary lining, to solve the problem that the grouting hard pipe height is fixed and cannot be flexibly adjusted and lifted when the existing device solves the problem of cavities behind the secondary lining of the tunnel, which easily causes local uneven grouting and affects the remediation effect and construction flexibility.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a mould grouting equipment for operating railway tunnel secondary lining, comprising a grouting machine, a grout outlet pipe connected with the grouting machine, a grouting pump arranged on a pipe section of the grout outlet pipe, a grout supply pipe in communication with one end of the grout outlet pipe, a grouting hard pipe in communication with one end of the grout supply pipe, a connecting flange sleeved on the grouting hard pipe, a pressure monitoring mechanism, further comprising a sealing mechanism in communication with the upper side of the connecting flange, a lifting mechanism arranged on the lower side of the connecting flange and connected with the grouting hard pipe, the grouting hard pipe can slide longitudinally in the sealing mechanism through the lifting mechanism.

[0006] Further, the lifting mechanism comprises two connecting columns connected with the lower side of the connecting flange and arranged at intervals, a C-shaped frame connected with one end of the two connecting columns, an opening arranged on the upper side of the C-shaped frame and used for allowing the hard pipe for grouting to pass through the C-shaped frame, a threaded rod rotatably connected in the C-shaped frame and arranged longitudinally, a moving plate threadedly connected with the threaded rod, a fixing sleeve connected with one end of the moving plate, and a motor arranged on one side of the C-shaped frame, wherein the output end of the motor is connected with one end of the threaded rod, the fixing sleeve is connected with the outer wall of the hard pipe for grouting, and the opening is located between the two connecting columns.

[0007] Further, the inner wall of the C-shaped frame is provided with a sliding groove, and a sliding block connected with one side of the moving plate is slidably arranged in the sliding groove.

[0008] Further, the outer wall of the hard pipe for grouting is provided with a vibrator located above the fixing sleeve.

[0009] Further, one side of the C-shaped frame is provided with an outer shell, the inner part of the outer shell is provided with a storage battery, and the storage battery is electrically connected with the vibrator and the motor.

[0010] Further, the pressure monitoring mechanism comprises a pressure sensor arranged on the hard pipe for grouting and located below the fixing sleeve, and a controller arranged on the grouting machine, wherein the pressure sensor and the grouting pump are electrically connected with the controller.

[0011] Further, the sealing mechanism comprises a sleeve in communication with the upper side of the connecting flange, a first sealing ring arranged on the outer side of the sleeve, and a second sealing ring arranged on the inner side of the sleeve, and the hard pipe for grouting is slidably connected with the inner wall of the sleeve.

[0012] Compared with the prior art, the device has the following beneficial effects:

[0013] In the treatment of the hole disease behind the secondary lining of the tunnel, the device can flexibly adjust and lift the grouting height of the hard pipe for grouting during the grouting process, so that the grouting height of the hard pipe for grouting can be flexibly adjusted and lifted during the grouting process, the slurry can be uniformly distributed in the gap behind the secondary lining, the situation of insufficient or excessive grouting in a local area can be avoided, the disease treatment effect is improved, and the flexibility and adaptability of the construction process are improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the device for the operation of the secondary lining of the railway tunnel according to the present application;

[0015] Figure 2 It is an enlarged sectional view of the lifting mechanism according to the present application;

[0016] Figure 3The utility model discloses a top view schematic diagram of the connecting flange.

[0017] Figure 4 The utility model discloses a system control block diagram for the secondary lining of the operation railway tunnel with mould grouting equipment.

[0018] In the drawing: 1, grout pipe; 2, grouting pump; 3, slurry supply pipe; 4, grouting hard pipe; 5, connecting flange; 6, lifting mechanism; 7, sealing mechanism; 8, connecting column; 9, C-shaped frame; 10, opening; 11, motor; 12, threaded rod; 13, moving plate; 14, fixed sleeve; 15, sliding groove; 16, sliding block; 17, shell; 18, battery; 19, pressure sensor; 20, vibrator; 21, sleeve pipe; 22, first sealing ring; 23, second sealing ring; 24, grouting machine. DETAILED DESCRIPTION

[0019] Please refer to Figures 1-4 A kind of grouting equipment for the secondary lining of the operation railway tunnel with mould, including grouting machine 24, with the grouting machine 24 connection grout pipe 1, grouting pump 2 is installed on the pipe section of grout pipe 1, with grout pipe 1 one end communication slurry supply pipe 3, with slurry supply pipe 3 one end communication grouting hard pipe 4, sleeve joint on grouting hard pipe 4 connecting flange 5, pressure monitoring mechanism, it further include with the upper side communication of connecting flange 5 sealing mechanism 7, with the lower side connection of connecting flange 5 and with the outer wall connection of grouting hard pipe 4 lifting mechanism 6, grouting hard pipe 4 can be along the longitudinal sliding of sealing mechanism 7 by lifting mechanism 6;When the disease behind the hole of the secondary lining of the tunnel is treated, first, utilize drilling machine and drill in the preset position, then, install fixed flange on the edge of drilling, then, by multiple bolts, fixed flange and connecting flange 5 are connected together, in this process, sealing mechanism 7 is inserted into drilling, to ensure the sealing during grouting, after installation, start grouting machine 24, grouting pump 2, and slurry is transported through grout pipe 1, slurry supply pipe 3, and is injected into the empty area behind the secondary lining of the tunnel through grouting hard pipe 4, during grouting operation, by controlling the start of lifting mechanism 6, lifting mechanism 6 drives grouting hard pipe 4 to realize lifting action, changes the grouting height of grouting hard pipe 4, when slurry fills the hole, stop grouting, remove connecting flange 5, and pull out sealing mechanism 7, and the grouting hole is blocked;Further, the grouting height of grouting hard pipe 4 can be flexibly adjusted and lifted during the grouting process, can ensure that slurry is evenly distributed in the gap behind the secondary lining, avoid the situation that local grouting is insufficient or grouting is excessive, so as to improve the disease treatment effect, also enhance the flexibility and adaptability of construction process.

[0020] The lifting mechanism 6 comprises two connecting columns 8 connected with the lower side of the connecting flange 5 and arranged at intervals, a C-shaped frame 9 connected with one end of the two connecting columns 8, an opening 10 arranged on the upper side of the C-shaped frame 9 and used for the grouting rigid pipe 4 to pass through the C-shaped frame 9, a threaded rod 12 rotatably connected in the C-shaped frame 9 and arranged longitudinally, a moving plate 13 threadedly matched with the threaded rod 12, a fixed sleeve 14 connected with one end of the moving plate 13, a motor 11 mounted on one side of the C-shaped frame 9, an inner threaded hole arranged on the moving plate 13 and threadedly matched with the threaded rod 12, an output end of the motor 11 connected with one end of the threaded rod 12, the fixed sleeve 14 connected with the outer wall of the grouting rigid pipe 4, and the opening 10 located between the two connecting columns 8; when the grouting rigid pipe 4 is controlled to perform the lifting movement, the motor 11 is started, the motor 11 drives the threaded rod 12 to rotate, which promotes the moving plate 13 threadedly matched with the threaded rod 12 to perform the lifting movement, and the moving plate 13 is lifted, at the same time, the fixed sleeve 14 connected with the moving plate 13 is also moved up and down, and then the grouting rigid pipe 4 connected with the fixed sleeve 14 is lifted.

[0021] The inner wall of the C-shaped frame 9 is provided with a sliding groove 15, and a sliding block 16 connected with one side of the moving plate 13 is slidably matched in the sliding groove 15; when the moving plate 13 is lifted, the sliding block 16 connected with the moving plate 13 is longitudinally slid in the sliding groove 15, and then the stability of the moving plate 13 during lifting is improved, and the lifting operation of the moving plate 13 is limited.

[0022] The outer wall of the grouting rigid pipe 4 is provided with a vibrator 20 located above the fixed sleeve 14; by starting the vibrator 20, the grouting process is facilitated to be vibrated, so that the compactness of the grouting is improved.

[0023] One side of the C-shaped frame 9 is provided with an outer shell 17, the inner part of the outer shell 17 is provided with a storage battery 18, and the storage battery 18 is electrically connected with the vibrator 20 and the motor 11; the storage battery 18 provides the power required for the operation of the vibrator 20 and the motor 11 at high places, and solves the inconvenience brought by the cable power supply mode.

[0024] The pressure monitoring mechanism comprises a pressure sensor 19 arranged on the grouting rigid pipe 4 and located below the fixed sleeve 14 and a controller arranged on the grouting machine 24, and the pressure sensor 19 and the grouting pump 2 are electrically connected with the controller; during the grouting process, the pressure sensor 19 monitors the grouting pressure in real time, the controller controls the grouting pump 2 according to the pressure signal, and the grouting pressure is ensured to be always kept in a proper range.

[0025] The motor 11, the grouting machine 24 and the vibrator 20 are electrically connected with the controller.

[0026] The sealing mechanism 7 comprises a sleeve 21 communicated with the upper side of the connecting flange 5, a first sealing ring 22 arranged on the outer side of the sleeve 21, a second sealing ring 23 arranged on the inner side of the sleeve 21, and the hard grouting pipe 4 is in sliding fit with the inner wall of the sleeve 21; the sleeve 21 is inserted into the drill hole, the first sealing ring 22 plays a sealing role between the drill hole and the sleeve 21, and the second sealing ring 23 plays a sealing role between the sleeve 21 and the hard grouting pipe 4, so as to prevent the grouting process from easily causing grouting leakage.

[0027] Working principle: when the hole disease behind the secondary lining of the tunnel is treated, first, the drill machine drills a hole at the preset position, then, the fixed flange is installed at the edge of the drill hole, then, the fixed flange and the connecting flange 5 are connected through a plurality of bolts, in this process, the sleeve 21 is inserted into the drill hole, the first sealing ring 22 plays a sealing role between the drill hole and the sleeve 21, and the second sealing ring 23 plays a sealing role between the sleeve 21 and the hard grouting pipe 4, so as to ensure the sealing performance in the grouting process, after installation, the grouting machine 24, the grouting pump 2 and the vibrator 20 are started, the slurry is transported through the grouting pipe 1 and the grouting pipe 3, and is injected into the hollow area behind the secondary lining of the tunnel, during the grouting operation, when the hard grouting pipe 4 is controlled to move up and down, the motor 11 is started, the motor 11 drives the threaded rod 12 to rotate, this action promotes the moving plate 13 in screw fit with the threaded rod 12 to move up and down, the moving plate 13 moves up and down, and simultaneously drives the fixed sleeve 14 connected with the moving plate 13 to move up and down, and then the hard grouting pipe 4 connected with the fixed sleeve 14 realizes the up and down operation, the slider 16 connected with the moving plate 13 moves longitudinally in the sliding groove 15, the grouting height of the hard grouting pipe 4 is changed, the pressure sensor 19 monitors the grouting pressure in real time, the controller controls the grouting pump 2 according to the pressure signal, so as to ensure that the grouting pressure always remains in a suitable range, when the slurry fills the hole, the grouting is stopped, the connecting flange 5 is disassembled, and the sealing mechanism 7 is pulled out, and the grouting hole is plugged; then, the grouting height of the hard grouting pipe 4 can be flexibly adjusted and lifted during the grouting process, the slurry can be uniformly distributed in the gap behind the secondary lining, the local grouting deficiency or excessive grouting is avoided, the disease treatment effect is improved, and the flexibility and adaptability of the construction process are improved.

[0028] The above is only a preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in the protection range of the utility model.

Claims

1. A belt mould grouting device for operating railway tunnel secondary lining, comprising a grouting machine (24), a grouting pipe (1) connected with the grouting machine (24), a grouting pump (2) arranged on a pipe section of the grouting pipe (1), a grout supply pipe (3) in communication with one end of the grouting pipe (1), a grouting hard pipe (4) in communication with one end of the grout supply pipe (3), a connecting flange (5) sleeved on the grouting hard pipe (4), and a pressure monitoring mechanism, characterized in that, The sealing mechanism (7) is arranged on the upper side of the connecting flange (5), and the lifting mechanism (6) is arranged on the lower side of the connecting flange (5) and connected with the grouting hard pipe (4). The grouting hard pipe (4) can slide longitudinally in the sealing mechanism (7) through the lifting mechanism (6).

2. A formwork and slip casting apparatus for lining a railway tunnel according to claim 1, wherein, The lifting mechanism (6) comprises two connecting columns (8) connected with the lower side of the connecting flange (5) and arranged at intervals, a C-shaped frame (9) connected with one end of the two connecting columns (8), an opening (10) arranged on the upper side of the C-shaped frame (9) and used for the grouting hard pipe (4) to pass through the C-shaped frame (9), a threaded rod (12) rotatably connected in the C-shaped frame (9) and arranged longitudinally, a moving plate (13) threadedly matched with the threaded rod (12), a fixed sleeve (14) connected with one end of the moving plate (13), and a motor (11) arranged on one side of the C-shaped frame (9). An output end of the motor (11) is connected with one end of the threaded rod (12). The fixed sleeve (14) is connected with the outer wall of the grouting hard pipe (4). The opening (10) is located between the two connecting columns (8).

3. A slipform tunnel-lining machine as claimed in claim 2, wherein, A sliding groove (15) is arranged in the inner wall of the C-shaped frame (9). A sliding block (16) connected with one side of the moving plate (13) is slidably arranged in the sliding groove (15).

4. A slipform tunnel-lining machine as defined in claim 2, wherein, A vibrator (20) is arranged on the outer wall of the grouting hard pipe (4) and located above the fixed sleeve (14).

5. A slipform tunnel-lining machine as claimed in claim 4, wherein, An outer shell (17) is arranged on one side of the C-shaped frame (9). A storage battery (18) is arranged in the outer shell (17). The storage battery (18) is electrically connected with the vibrator (20) and the motor (11).

6. A formwork and slip casting apparatus for lining a railway tunnel according to claim 1, wherein, The pressure monitoring mechanism comprises a pressure sensor (19) arranged on the grouting hard pipe (4) and located below the fixed sleeve (14), and a controller arranged on the grouting machine (24). The pressure sensor (19) and the grouting pump (2) are electrically connected with the controller.

7. A formwork and slip casting apparatus for the construction of secondary lining of railway tunnels as claimed in claim 1, wherein, The sealing mechanism (7) comprises a sleeve (21) in communication with the upper side of the connecting flange (5), a first sealing ring (22) arranged on the outer side of the sleeve (21), and a second sealing ring (23) arranged on the inner side of the sleeve (21). The grouting hard pipe (4) is slidably matched with the inner wall of the sleeve (21).

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