Water-rich shield reinforcement structure

Abstract

The application relates to the technical field of foundation reinforcement, in particular to a water-rich shield reinforcement structure which comprises a slurry tank, a vertical plate fixedly installed on the slurry tank, a V-shaped support frame fixedly connected with the vertical plate, a first sliding rod fixedly installed on the slurry tank, a sliding sleeve sleeved on the first sliding rod, a second sliding rod fixedly installed on the sliding sleeve, a reinforcement mechanism connected with the V-shaped support frame and the second sliding rod and communicated with the slurry tank, a driving assembly and a mobile grouting assembly in the reinforcement mechanism, and a water-blocking assembly matched with the mobile grouting assembly. The water-rich shield reinforcement structure realizes the integration of movement and grouting, reduces the occupied area of the equipment, is suitable for small-space operation, does not need to be separately disassembled and assembled, is very convenient to use, and is favorable for improving the construction efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of foundation reinforcement, in particular to a water-rich shield reinforcement structure. BACKGROUND

[0002] With the continuous development of urban rail transit in China, urban underground space has been rapidly developed and utilized, and underground tunnel construction has entered a peak period. Shield construction has the advantages of good safety, high degree of mechanization, fast tunneling speed, small environmental disturbance, and wide adaptability to strata, and is rapidly promoted and applied in the fields of urban rail transit, highway tunnels, municipal pipelines, etc. Shield construction method is adopted in a large number of engineering construction. In the process of shield construction, the end part of the shield tunnel needs to be reinforced. In high water-rich strata, water and sand often gush out due to poor reinforcement quality, which seriously leads to soil collapse and failure of shield launching and receiving.

[0003] Through retrieval, Chinese invention patent CN113236306B discloses a subway station end head reinforcement structure for water-rich sand layer shield construction. The connection between the fastening block and the station end head is more firm by entering each grouting hole through the shunt pipe, so that the phenomenon of water and sand gushing does not occur when the shield machine receives the opening, thereby avoiding causing major quality safety accidents, preventing the occurrence of events such as foundation pit collapse, surrounding building tilting and uneven settlement, pipeline rupture, etc. However, when grouting the fastening block, the hard pipe needs to be fixed and installed. Under the driving action of the driving unit, the shunt pipe moves to the upper part of the grouting hole. At the same time, each device works separately, which occupies a large area and has a too complicated structure, and installation and operation are very inconvenient, affecting the efficiency of construction. Therefore, in view of the above status, it is urgent to develop a water-rich shield reinforcement structure to overcome the deficiencies in current actual applications. SUMMARY

[0004] The purpose of the present application is to provide a water-rich shield reinforcement structure to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A water-rich shield reinforcement structure, comprising a slurry tank, a vertical plate is fixedly installed on the slurry tank, and further comprising:

[0007] A V-shaped support frame is fixedly connected with the vertical plate;

[0008] A first sliding rod is fixedly installed on the slurry tank, and a sliding sleeve is sleeved on the first sliding rod, and a second sliding rod is fixedly installed on the sliding sleeve; and

[0009] The reinforcing mechanism is connected with the V-shaped support frame and the second sliding rod respectively and communicates with the slurry tank, wherein the reinforcing mechanism comprises a driving assembly and a mobile grouting assembly;

[0010] The driving assembly is connected with the V-shaped support frame, the mobile grouting assembly is installed on the driving assembly, the mobile grouting assembly is in sliding connection with the second sliding rod, and the mobile grouting assembly further communicates with the slurry tank;

[0011] The water isolation assembly is matched with the mobile grouting assembly.

[0012] As a further scheme of the present application, the water isolation assembly comprises:

[0013] The waterproof curtain is located outside the reinforcing layer of the tunnel end and is matched with the mobile grouting assembly, wherein the reinforcing layer is composed of a plurality of mixing piles.

[0014] The reinforcing block is located on the top of the waterproof curtain and is connected with the tunnel end, and a plurality of grouting holes are further formed in the reinforcing block.

[0015] As a further scheme of the present application, the driving assembly comprises:

[0016] The driving motor is fixedly connected with the V-shaped support frame through the mounting seat.

[0017] The rotating shaft is connected with the output end of the driving motor at one end, and a sleeve is fixedly installed on the other end of the rotating shaft.

[0018] The opening and closing sliding unit is connected with the sleeve and the mobile grouting assembly respectively.

[0019] As a further scheme of the present application, the opening and closing sliding unit comprises:

[0020] The rotating seat is in rotary connection with the mobile grouting assembly.

[0021] The telescopic rod is fixedly connected with the rotating seat at one end, and the other end of the telescopic rod is inserted into the sleeve and is in sliding connection with the sleeve.

[0022] The spring is sleeved on the telescopic rod, and the two ends of the spring are fixedly connected with the sleeve and the rotating seat respectively.

[0023] As a further scheme of the present application, the mobile grouting assembly comprises:

[0024] A position adjusting block is sleeved on the second sliding rod and is rotationally connected with the rotating seat;

[0025] A communication joint is arranged on the position adjusting block;

[0026] A grouting pipe is connected with the communication joint at one end, and a grouting hollow box is fixedly arranged on the other end of the grouting pipe; and

[0027] A plurality of outflow pipes are uniformly arranged on the grouting hollow box and are in communication with the grouting pipe.

[0028] As a further scheme of the present application, a connecting hose is arranged, one end of the connecting hose is connected with the slurry tank, and the other end of the connecting hose is connected with the communication joint; and

[0029] A liquid adding port is arranged on the slurry tank.

[0030] As a further scheme of the present application, a plurality of shunt pipes are arranged, the shunt pipes are fixedly arranged in the grouting hollow box, one end of the shunt pipe is in communication with the grouting pipe, and the other end of the shunt pipe is arranged above the outflow pipe;

[0031] A detection blocking plate is arranged between the outflow pipe and the shunt pipe and is detachably connected with the outflow pipe and the shunt pipe; and

[0032] A telescopic assembly is connected with the grouting hollow box and the detection blocking plate.

[0033] As a further scheme of the present application, the telescopic assembly comprises:

[0034] A telescopic cylinder is fixedly arranged in the grouting hollow box; and

[0035] A push-pull rod is fixedly connected with the telescopic cylinder and the detection blocking plate at two ends.

[0036] Compared with the prior art, the present application has the following advantages:

[0037] Before the shield machine is sent and received, the inside of the reinforced layer is dewatered in advance, and the slurry tank is moved to one side of the waterproof assembly, wherein a vertical plate is fixedly installed on the slurry tank, and a handle is arranged on the vertical plate, so that the staff can operate conveniently; when the slurry tank is moved to the specified position, the movable grouting assembly located at the initial position (low position) can be checked; after the inspection is qualified, the driving assembly is directly started to drive the movable grouting assembly to slide upwards on the first sliding rod through the sliding sleeve and reach the top end, and the sliding sleeve is in a limited state at this time; then the movable grouting assembly moves horizontally on the second sliding rod until it moves to the specified position above the waterproof assembly; at this time, the slurry in the slurry tank is pumped into the movable grouting assembly through the pumping equipment, and the waterproof assembly is smoothly grouted; the slurry tank is provided with bentonite slurry, so that the water and sand stopping effect is good, and the phenomenon of water and sand gushing when the shield machine is received and opened is avoided; after grouting is completed, the driving assembly is started again to make the movable grouting assembly return to the initial position, so that the staff can clean up conveniently; under the driving of the driving assembly, the movable grouting assembly can realize square track movement, the operation is simple, the integration of movement and grouting is realized, the occupied area of the equipment is reduced, small space operation is suitable, and separate disassembly and assembly work is not needed, so that the use is very convenient, and the construction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a main view structural schematic diagram of the water-rich shield reinforcement structure in the embodiment of the application.

[0039] Figure 2 It is a side view structural schematic diagram of the water-rich shield reinforcement structure in the embodiment of the application.

[0040] Figure 3 It is a three-dimensional structural schematic diagram of the V-shaped support frame part in the embodiment of the application.

[0041] Figure 4 It is a structural schematic diagram of the working state of the position adjusting block part in the embodiment of the application.

[0042] Figure 5 It is a sectional view structural schematic diagram of the grouting hollow box part in the embodiment of the application.

[0043] In the figure: 1-vertical plate, 2-V-shaped support frame, 3-driving motor, 4-slurry tank, 5-water stop curtain, 6-mixing pile, 7-grouting pipe, 8-grouting hollow box, 9-slurry outlet pipe, 10-reinforcing block, 11-first sliding rod, 12-connection hose, 13-liquid inlet, 14-telescopic rod, 15-sleeve, 16-mounting seat, 17-spring, 18-rotary seat, 19-position adjusting block, 20-communication joint, 21-sliding sleeve, 22-second sliding rod, 23-rotary shaft, 24-shunt pipe, 25-telescopic cylinder, 26-pushing and pulling rod, 27-detection sealing plate. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be apparently and completely described in combination with the drawings of 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. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without any creative work, belong to the protection scope of the present application.

[0045] The specific implementation of the present application will be described in detail in combination with specific embodiments.

[0046] Please refer to Figures 1-5 The water-rich shield reinforcing structure provided by the embodiments of the present application comprises a slurry tank 4, a vertical plate 1 is fixedly installed on the slurry tank 4, and further comprises:

[0047] A V-shaped support frame 2 is fixedly connected with the vertical plate 1.

[0048] A first sliding rod 11 is fixedly installed on the slurry tank 4, a sliding sleeve 21 is sleeved on the first sliding rod 11, and a second sliding rod 22 is fixedly installed on the sliding sleeve 21.

[0049] A reinforcing mechanism is connected with the V-shaped support frame 2 and the second sliding rod 22 respectively, and is in communication with the slurry tank 4, wherein the reinforcing mechanism comprises a driving assembly and a mobile grouting assembly.

[0050] The driving assembly is connected with the V-shaped support frame 2, the mobile grouting assembly is installed on the driving assembly, the mobile grouting assembly is in sliding connection with the second sliding rod 22, and the mobile grouting assembly is in communication with the slurry tank 4.

[0051] A water-blocking assembly is matched with the mobile grouting assembly.

[0052] Before the shield machine is sent and received, the inside of the reinforcement layer is dewatered in advance, and the slurry tank 4 is moved to one side of the waterproof assembly, wherein the vertical plate 1 is fixedly installed on the slurry tank 4, and the handle is arranged on the vertical plate 1, so that the staff can operate conveniently, when the slurry tank 4 is moved to the specified position, the mobile grouting assembly located at the initial position (low position) can be checked, after the inspection is qualified, the driving assembly is directly started to drive the mobile grouting assembly to slide upwards on the first sliding rod 11 through the sliding sleeve 21, and when reaching the top end, the sliding sleeve 21 is in the limited state, at this time, the mobile grouting assembly moves horizontally on the second sliding rod 22 until it moves to the specified position above the waterproof assembly, at this time, the slurry in the slurry tank 4 is pumped into the mobile grouting assembly through the pumping equipment, and the waterproof assembly is smoothly grouted, wherein the bentonite slurry is arranged in the slurry tank 4, so that the water and sand stopping effect is good, and the phenomenon of water and sand gushing when the shield machine is received and opened is avoided, after the grouting is completed, the driving assembly is started again to make the mobile grouting assembly return to the initial position, so that the staff can clean up conveniently, under the driving of the driving assembly, the mobile grouting assembly can realize the square track action, the operation is simple, the mobile grouting and grouting integration are realized, the occupied area of the equipment is reduced, small space operation is suitable, and separate disassembly and assembly work is not needed, so that the use is very convenient, and the construction efficiency is improved.

[0053] In one embodiment of the present application, referring to Figure 1 , the waterproof assembly comprises:

[0054] The waterproof curtain 5 is located outside the reinforcement layer of the tunnel end and is matched with the mobile grouting assembly to set, wherein the reinforcement layer is assembled by a plurality of mixing piles 6; and

[0055] The reinforcement block 10 is located on the top of the waterproof curtain 5 and is connected with the tunnel end, and a plurality of grouting holes are further arranged on the reinforcement block 10.

[0056] Referring to Figures 1-3 , the driving assembly comprises:

[0057] The driving motor 3 is fixedly connected with the V-shaped support frame 2 through the mounting seat 16;

[0058] The rotating shaft 23 is connected with the output end of the driving motor 3 at one end, and the sleeve 15 is fixedly installed on the other end of the rotating shaft 23; and

[0059] The opening and closing sliding unit is connected with the sleeve 15 and the mobile grouting assembly respectively.

[0060] The opening and closing sliding unit comprises a rotating seat 18 which is rotationally connected with the mobile grouting assembly;

[0061] A telescopic rod 14, one end of which is fixedly connected with the rotating seat 18, and the other end of which is inserted into the sleeve 15 and is slidably connected with the sleeve 15; and

[0062] A spring 17 which is sleeved on the telescopic rod 14, and two ends of the spring 17 are fixedly connected with the sleeve 15 and the rotating seat 18 respectively.

[0063] When the slurry tank 4 reaches the vicinity of the waterproof curtain 5, the driving motor 3 is started to drive the rotating shaft 23 to rotate and drive the sleeve 15 to rotate synchronously, in the process of the clockwise rotation of the sleeve 15, the telescopic rod 14 arranged can generate an upward thrust on the second sliding rod 22, so that the sliding sleeve 21 moves upward from the bottom end position of the first sliding rod 11 until it cannot continue to move when it moves to the top end position of the first sliding rod 11, at this time, the rotating seat 18 can generate a rightward thrust on the mobile grouting assembly as the sleeve 15 continues to rotate, so as to drive the mobile grouting assembly to slide rightward on the second sliding rod 22, in the whole sliding process, the telescopic rod 14 can slide in the sleeve 15, and under the elastic force of the spring 17, the movement track of the mobile grouting assembly is L-shaped, as the mobile grouting assembly moves horizontally at the top position of the waterproof curtain 5, the mobile grouting assembly can be just moved to the upper position of the grouting hole of the reinforcing block 10 to accurately grout the grouting hole, in addition, if the height of the waterproof curtain 5 is low, the sleeve 15 can continue to rotate under the driving of the driving motor 3 until the mobile grouting assembly reaches the rightmost end of the second sliding rod 22, at this time, the mobile grouting assembly cannot continue to move horizontally, so as to drive the sliding sleeve 21 to slide downward on the first sliding rod 11 to change the vertical height of the mobile grouting assembly, so that the position of the mobile grouting assembly can be quickly adjusted according to the horizontal and vertical positions of the grouting hole, which is convenient and fast and provides convenience for the staff.

[0064] In an embodiment of the present application, please refer to Figure 1 and Figure 2 , the mobile grouting assembly comprises:

[0065] A position adjusting block 19 which is sleeved on the second sliding rod 22 and is rotationally connected with the rotating seat 18;

[0066] A communication joint 20 which is located on the position adjusting block 19;

[0067] A grouting pipe 7, one end of which is connected with the communication joint 20, and the other end of which is fixedly installed with a grouting hollow box 8;

[0068] A plurality of grouting pipes 9, which are uniformly distributed on the grouting hollow box 8 and are in communication with the grouting pipe 7.

[0069] Please refer to Figure 2 and Figure 4 Further comprising: a connecting hose 12, one end of which is connected with the grout tank 4, and the other end of which is connected with the communication joint 20; and

[0070] A liquid adding port 13 located on the grout tank 4.

[0071] Under the driving action of the driving assembly, when the sliding sleeve 21 reaches the top end of the first sliding rod 11, the rotating seat 18 will generate a rightward pushing force on the position adjusting block 19, so as to make the position adjusting block 19 slide rightward on the second sliding rod 22, so as to change the horizontal position of the grouting pipe 7 and the grouting hollow box 8, when the grouting pipe 9 moves to the directly above of the grouting hole, the driving motor 3 stops, and the pumping device transports the grout in the grout tank 4 to the grouting pipe 7 through the connecting hose 12, wherein the end portions of the connecting hose 12 and the grouting pipe 7 are connected through the communication joint 20, and the grout in the grouting pipe 7 is injected into a plurality of grouting holes through a plurality of grouting pipes 9, so as to avoid the phenomenon of water and sand gushing when the shield machine receives the opening hole, thereby preventing the occurrence of major quality safety accidents, and the events such as foundation pit collapse, surrounding building tilting and uneven settlement and pipeline rupture will not occur.

[0072] In an embodiment of the present application, please refer to Figure 1 and Figure 5 Further comprising: a plurality of shunt pipes 24, which are fixedly installed in the grouting hollow box 8, and one end of each of the shunt pipes 24 is in communication with the grouting pipe 7, and the other end of each of the shunt pipes 24 is located directly above the grouting pipe 9;

[0073] A detection sealing plate 27 located between the grouting pipe 9 and the shunt pipe 24 and being separably connected with the grouting pipe 9 and the shunt pipe 24; and

[0074] A telescopic assembly connected with the grouting hollow box 8 and the detection sealing plate 27, respectively.

[0075] The telescopic assembly comprises: a telescopic cylinder 25 fixedly installed in the grouting hollow box 8; and

[0076] A push-pull rod 26, two ends of the push-pull rod 26 are fixedly connected with the telescopic cylinder 25 and a detection sealing plate 27 respectively.

[0077] During the grouting process, a plurality of shunt pipes 24 are installed on the grouting pipe 7, but it takes a process to fill the grouting pipe 7 with slurry completely, at this time, if the grouting in the plurality of shunt pipes 24 is not carried out at the same time, it is easy to make the slurry in the plurality of grouting holes different, therefore, the detection sealing plate 27 is arranged, the detection sealing plate 27 can adopt the form of arranging a pressure sensor on the sealing plate, when the pressure is detected on all the detection sealing plates 27, it is indicated that the slurry has completely filled the grouting pipe 7 and the plurality of shunt pipes 24 at this time, at this time, the telescopic cylinder 25 is started, the middle part of the push-pull rod 26 box grouting hollow box 8 is pulled to move, so that the detection sealing plate 27 is separated from the slurry outlet pipe 9 and the shunt pipe 24, at this time, the slurry can fall from the shunt pipe 24 into the slurry outlet pipe 9 at the same time, and enter the plurality of grouting holes at the same time, so as to ensure that the plurality of grouting holes grout at the same time, and further ensure that the slurry in the plurality of grouting holes is the same, which is beneficial to further improve the reinforcement effect.

[0078] It should be noted that in the present application, unless otherwise specified and limited, the terms "sliding", "rotating", "fixed", "provided with" and the like should be understood in a broad sense, for example, can be welded connection, or bolted connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specified. 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.

[0079] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A water-rich shield reinforcement structure comprising a slurry tank, a vertical plate is fixedly installed on the slurry tank, characterized in that, Also include: V-shaped support frame, the V-shaped support frame is fixedly connected with the stave; First sliding rod, the first sliding rod is fixedly installed on the slurry tank, and a sliding sleeve is sleeved on the first sliding rod, a second sliding rod is fixedly installed on the sliding sleeve; and Reinforcing mechanism, the reinforcing mechanism is connected with the V-shaped support frame and the second sliding rod respectively, and is communicated with the slurry tank, wherein the reinforcing mechanism comprises a driving assembly and a moving grouting assembly; The driving assembly is connected with the V-shaped support frame, the moving grouting assembly is installed on the driving assembly, the moving grouting assembly is slidably connected with the second sliding rod, and the moving grouting assembly is also communicated with the slurry tank; Water blocking assembly, the water blocking assembly is matched with the moving grouting assembly; The driving assembly comprises: a driving motor, the driving motor is fixedly connected with the V-shaped support frame through a mounting seat; Rotary shaft, one end of the rotary shaft is connected with the output end of the driving motor, the other end of the rotary shaft is fixedly installed with a sleeve; and Zhanghe sliding unit, the Zhanghe sliding unit is connected with the sleeve and the moving grouting assembly respectively; The Zhanghe sliding unit comprises: a rotary seat, the rotary seat is rotatably connected with the moving grouting assembly; Telescopic rod, one end of the telescopic rod is fixedly connected with the rotary seat, the other end of the telescopic rod is inserted into the sleeve and is slidably connected with the sleeve; and Spring, the spring is sleeved on the telescopic rod, and the two ends of the spring are fixedly connected with the sleeve and the rotary seat respectively.

2. The water enriched shield reinforced structure of claim 1, wherein, The water blocking assembly comprises: Water stop curtain, the water stop curtain is located outside the reinforced layer of the tunnel end, and is matched with the moving grouting assembly, wherein the reinforced layer is composed of a plurality of mixing piles; and Reinforcing block, the reinforcing block is located on the top of the water stop curtain and is connected with the tunnel end, and a plurality of grouting holes are formed in the reinforcing block.

3. The water enriched shield reinforced structure of claim 1, wherein, The moving grouting assembly comprises: Position adjusting block, the position adjusting block is sleeved on the second sliding rod, and the position adjusting block is rotatably connected with the rotary seat; Communication joint, the communication joint is located on the position adjusting block; Grouting pipe, one end of the grouting pipe is connected with the communication joint, and the other end of the grouting pipe is fixedly installed with a grouting hollow box; and Slurry outlet pipe, the number of the slurry outlet pipe is multiple, multiple slurry outlet pipes are evenly distributed on the grouting hollow box and are communicated with the grouting pipe.

4. The water enriched shield reinforced structure of claim 3, wherein, Also include: Connecting hose, one end of the connecting hose is connected with the slurry tank, the other end of the connecting hose is connected with the communication joint; And Liquid inlet, the liquid inlet is located on the slurry tank.

5. The water enriched shield reinforced structure according to claim 3 or 4, characterized in that, Also include: Shunt pipe, the number of the shunt pipe is multiple, multiple shunt pipes are fixedly installed in the grouting hollow box, one end of the shunt pipe is also communicated with the grouting pipe, and the other end of the shunt pipe is located directly above the slurry outlet pipe; Detection blocking plate, the detection blocking plate is located between the slurry outlet pipe and the shunt pipe and is separably connected with the slurry outlet pipe and the shunt pipe; And A telescopic assembly is connected with the grouting hollow box and the detection sealing plate respectively.

6. The water enriched shield reinforced structure of claim 5, wherein, The telescopic assembly comprises: A telescopic cylinder is fixedly installed in the grouting hollow box; and A push-pull rod is fixedly connected with the telescopic cylinder and the detection sealing plate at two ends respectively.

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