Integrated system for tunnel reinforcement and construction technology

Abstract

The invention relates to the technical field of underground engineering, in particular to an integrated system for tunnel reinforcement and a construction technology.The integrated system comprises a walking vehicle, the walking vehicle is provided with a slurry supply system, a waste liquid recycling system, a drill rod, a collecting module and a main control module, and the slurry supply system is used for injecting slurry into a pile hole through the drill rod; the waste liquid recovery system is used for pumping slurry from a pile hole; the acquisition module is used for acquiring in-hole pressure information in a pile hole in real time; the main control module is used for receiving the in-hole pressure information in real time and controlling the slurry pumping amount of the waste liquid recovery system according to the in-hole pressure information so as to keep the in-hole pressure balance of the pile hole and ensure that the in-hole pressure in the pile hole can be kept balanced in the tunnel pile foundation reinforcing process; secondary damage to the tunnel due to unbalanced soil pressure in the pile hole is avoided, and meanwhile the pile forming quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of underground engineering, and in particular to an integrated system and construction process for tunnel reinforcement. Background Art

[0002] In today's tunnel construction, tunnel stability plays a crucial role in ensuring the long-term safe operation of subways. As one of the core technologies for tunnel reinforcement, the quality of cement-soil pile construction equipment and methods directly impacts project quality, schedule, and cost.

[0003] The current conventional tunnel pile foundation reinforcement technology has many problems in practical application. On the one hand, the tunnel space is small, and the traditional construction with multiple equipment is cumbersome and inefficient. On the other hand, during the grouting process, the soil pressure in the pile hole is difficult to effectively control. If it is too high or too low, it will easily cause secondary damage to the tunnel and seriously affect the smooth progress of construction. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated system and construction process for tunnel reinforcement, aiming at the problem that the conventional tunnel pile foundation in the background technology uses multiple devices for construction, which is cumbersome and inefficient, and the soil pressure in the pile hole is difficult to effectively control during the grouting process. If the soil pressure is too high or too low, it will easily cause secondary damage to the tunnel.

[0005] In a first aspect, the present application provides an integrated system for tunnel reinforcement, comprising a traveling vehicle, the traveling vehicle being provided with a grouting system, a waste liquid recovery system, a drill rod, a collection module, and a main control module, the grouting system being used to inject grout into a pile hole through the drill rod, and the waste liquid recovery system being used to extract grout from the pile hole;

[0006] The acquisition module is used to collect the hole pressure information in the pile hole in real time;

[0007] The main control module is used to receive the in-hole pressure information in real time and control the slurry extraction volume of the waste liquid recovery system according to the in-hole pressure information to maintain the in-hole pressure balance of the pile hole.

[0008] The present application discloses an integrated system for tunnel reinforcement, which is provided with a slurry supply system, a waste liquid recovery system, a drill rod, a collection module and a main control module on a traveling vehicle. The integrated system can be used to perform processes such as drilling, grouting and slurry extraction, thereby reducing the tedious coordination and connection links between traditional multiple devices, greatly reducing the workload of construction personnel and improving construction efficiency. Furthermore, the collection module collects the in-hole pressure information in the pile hole in real time, the main control module receives the in-hole pressure information in real time, and controls the slurry extraction amount of the waste liquid recovery system according to the in-hole pressure information to maintain the in-hole pressure balance in the pile hole, thereby ensuring that the in-hole pressure in the pile hole can be kept balanced during the tunnel pile foundation reinforcement process, avoiding secondary damage to the tunnel due to unbalanced soil pressure in the pile hole, and also ensuring the quality of the pile.

[0009] Preferably, the waste liquid recovery system includes a waste liquid tank, a slurry pump and a slurry return device, the slurry return device is installed on the drill rod, and the slurry return device is connected to the pile hole;

[0010] The acquisition module includes a pressure gauge, which is provided on the grouting device and is used to collect the in-hole pressure information in the pile hole in real time;

[0011] It also includes a slurry extraction valve, which is arranged on the slurry return device, and the waste liquid tank is connected to the slurry extraction valve through the slurry extraction pump;

[0012] The main control module controls the slurry pumping amount of the slurry pump according to the in-hole pressure information.

[0013] By setting a pressure gauge on the slurry return device, the pressure gauge collects the hole pressure information in the pile hole in real time and feeds it back to the main control module. The main control module controls the slurry pumping amount according to the hole pressure information, thereby controlling the soil pressure in the pile hole.

[0014] Preferably, the grouting device comprises a sealing device, a compression sleeve, a grouting cylinder and a base which are interconnected. The sealing device, the compression sleeve, the grouting cylinder and the base are sequentially installed on the drill rod from top to bottom along the length direction of the drill rod. The base is fixed on the tunnel wall, and the base and the grouting cylinder are in communication with the pile hole.

[0015] The pressure gauge and the slurry extraction valve are installed on the slurry return cylinder.

[0016] By installing a sealing device, a compression sleeve, a slurry return cylinder and a base on the drill pipe, the sealing device and the compression sleeve have a sealing effect on the drill pipe to prevent the slurry in the pile hole from overflowing along the drill pipe;

[0017] The base is fixed on the tunnel pipe wall to prevent the slurry return device from shaking. Furthermore, the base, the slurry return cylinder and the pile hole are connected, so that the cement slurry in the pile hole can be returned to the slurry return cylinder. The pressure information in the pile hole is monitored by the pressure gauge installed on the slurry return cylinder. The main control module controls the slurry pumping amount of the slurry pump according to the size of the pressure information in the hole to ensure the pressure balance in the hole.

[0018] Preferably, the compression sleeve comprises a coaxially arranged sleeve, a radial sealing sleeve and an axial transition sleeve, the radial sealing sleeve is located in the sleeve, the axial transition sleeve is located in the radial sealing sleeve, and the axial transition sleeve is installed on the drill pipe;

[0019] The radial sealing sleeve and the axial transition sleeve are cylindrical, and the inner wall of the axial transition sleeve is adapted to the shape of the drill pipe.

[0020] The outer wall of the radial sealing sleeve abuts against the inner wall of the sleeve, and the outer wall of the axial transition sleeve abuts against the radial sealing sleeve. The sleeve serves as the outer structure of the compression sleeve and plays an overall supporting and protective role, providing an installation position and external protection for the internal radial sealing sleeve and axial transition sleeve. The axial transition sleeve is installed on the drill pipe, and its inner wall is adapted to the shape of the drill pipe. Its main function is to play a transitional connection between the drill and other components, so that the drill pipe can better cooperate with the compression sleeve. The radial sealing sleeve is located in the sleeve to realize the sealing function in the radial direction of the drill pipe and prevent the slurry from the slurry barrel from overflowing from the compression sleeve.

[0021] Preferably, the sealing device comprises a shell and a bladder located in the shell, and the shell is further provided with an air injection valve;

[0022] The bladder is sleeved on the drill rod.

[0023] Gas is injected into the outer shell through the gas injection valve, so that the bladder holds the drill pipe tightly after inflation to achieve sealing.

[0024] Preferably, the base is provided with an arc-shaped bottom plate close to the tunnel wall, the arc-shaped bottom plate is adapted to the tunnel wall, and the arc-shaped bottom plate is bolted to the tunnel wall.

[0025] Preferably, the slurry supply system includes a cement storage tank, a water tank, a mixing tank, a storage tank and a high-pressure grouting pump. The cement storage tank and the water tank are connected to the mixing tank, the mixing tank is connected to the storage tank, and the storage tank is connected to the high-pressure grouting pump. The high-pressure grouting pump is used to deliver high-pressure slurry to the drill rod.

[0026] Preferably, the acquisition module further includes a first weight scale, a second weight scale and a flow monitor, wherein the flow monitor is provided on the connection channel between the storage tank and the high-pressure grouting pump, and is used to collect grouting volume information of the storage tank in real time;

[0027] The first weight scale is provided at the bottom of the cement storage tank and is used to collect the weight information of the cement powder in the cement storage tank in real time;

[0028] The second weight scale is provided at the bottom of the water tank and is used to collect the weight information of the water in the water tank in real time;

[0029] The main control module is used to receive the grouting volume information, the powder weight information and the water weight information in real time, and control the cement storage tank and the water storage tank to transport cement powder and water into the mixing tank, so that the slurry volume in the storage tank is maintained within a preset range.

[0030] By setting a first weight scale at the bottom of the cement storage tank and a second weight scale at the bottom of the water tank, the main control module can obtain the weight changes of powder and water in real time. Combined with the grouting volume information collected by the flow monitor, it dynamically adjusts the cement and water delivery volume to keep the slurry volume in the storage tank within the preset range, ensuring that the storage tank can continuously provide slurry during the grouting process of the high-pressure grouting pump. At the same time, it also avoids the problem of slurry shortage or overflow caused by manual operation, thereby improving construction efficiency and grouting stability.

[0031] In a second aspect, the present application provides a construction process for tunnel reinforcement, using an integrated system for tunnel reinforcement described in the present application, comprising the following steps:

[0032] S1: Control the traveling vehicle to travel to a designated construction location in the tunnel;

[0033] S2: Start the drill rod to drill. After reaching the designed elevation, start the slurry supply system to deliver high-pressure slurry to the drill rod. The drill rod is gradually withdrawn and rotated for grouting.

[0034] S3: During the grouting process into the pile hole, the acquisition module collects the in-hole pressure information in the pile hole in real time and feeds it back to the main control module, and the main control module controls the slurry extraction amount of the waste liquid recovery system according to the in-hole pressure information;

[0035] When the hole pressure information is lower than the preset value, the main control module controls the waste liquid recovery system to slow down or stop grouting until the hole pressure information is equal to the preset value, and then the main control module controls the grouting volume per unit time of the waste liquid recovery system to make the grouting volume per unit time equal to the grouting volume per unit time in the pile hole;

[0036] When the pressure information in the hole is higher than the preset value, the main control module controls the waste liquid recovery system to start or accelerate the grouting until the pressure information in the hole is equal to the preset value. Then the main control module controls the grouting amount per unit time of the waste liquid recovery system to make the grouting amount per unit time equal to the grouting amount per unit time in the pile hole.

[0037] Preferably, in step S2, the slurry supply system includes a cement storage tank, a water storage tank, a mixing tank, a storage tank and a high-pressure grouting pump, and the acquisition module further includes a first weight scale, a second weight scale and a flow monitor;

[0038] The flow monitoring meter is arranged on the connection channel between the storage tank and the high-pressure grouting pump, and collects the grouting volume information of the storage tank in real time;

[0039] The first weight scale is arranged at the bottom of the cement storage tank and collects the weight information of the cement powder in the cement storage tank in real time;

[0040] The second weight scale is arranged at the bottom of the water storage tank and collects the weight information of the water in the water storage tank in real time;

[0041] The main control module receives the grouting volume information, the powder weight information and the water weight information in real time, and controls the cement storage tank and the water storage tank to transport cement powder and water into the mixing tank, so that the slurry volume in the storage tank is maintained within a preset range.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] 1. The present application discloses an integrated system for tunnel reinforcement, which is provided with a slurry supply system, a waste liquid recovery system, a drill rod, a collection module and a main control module on a traveling vehicle. The integrated system can be used to perform processes such as drilling, grouting and slurry extraction, thereby reducing the tedious coordination and connection links between traditional multiple devices, greatly reducing the workload of construction personnel and improving construction efficiency. Furthermore, the collection module collects the in-hole pressure information in the pile hole in real time, the main control module receives the in-hole pressure information in real time, and controls the slurry extraction amount of the waste liquid recovery system according to the in-hole pressure information to maintain the in-hole pressure balance in the pile hole, thereby ensuring that the in-hole pressure in the pile hole can be kept balanced during the tunnel pile foundation reinforcement process, avoiding secondary damage to the tunnel due to unbalanced soil pressure in the pile hole, and also ensuring the quality of the pile.

[0044] 2. The construction process for tunnel reinforcement described in this embodiment uses a traveling vehicle for precise positioning, and performs high-pressure grouting after the drill rod completes drilling. During the grouting process, the acquisition module monitors the intrahole pressure in the pile hole in real time and feeds the data back to the main control module. The main control module adjusts the grouting volume of the waste liquid recovery system according to the intrahole pressure information: when the intrahole pressure is lower than the preset value, the grouting is slowed down or stopped; when it is higher than the preset value, the grouting is accelerated, and finally the grouting volume is equal to the grouting volume to achieve pressure balance, effectively improve construction efficiency and quality, ensure construction safety, and reduce environmental pollution and material loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 Schematic diagram of the structure of this application.

[0046] Figure 2 yes Figure 1 Front view of .

[0047] Figure 3 This is a schematic diagram of tunnel reinforcement.

[0048] Figure 4 It is a schematic diagram of the use of the slurry return device and the drill rod.

[0049] Figure 5 It is a structural diagram of the pulp return device.

[0050] Figure 6 yes Figure 5 Cross-sectional view at AA.

[0051] Figure 7 It is a system diagram of this application.

[0052] Markings in the figure:

[0053] 1- Cement storage tank,

[0054] 2- Water storage tank,

[0055] 3- Mixing tank,

[0056] 4- Storage tank,

[0057] 5- High pressure grouting pump,

[0058] 6- Waste liquid tank,

[0059] 7-Slurry return device,

[0060] 71-sealing device, 711-housing, 712-bladder, 713-injection valve,

[0061] 72-compression sleeve, 721-sleeve, 722-radial sealing sleeve, 723-axial transition sleeve,

[0062] 73-return pulp cylinder, 731-return pulp chamber,

[0063] 74-base, 741-arc bottom plate, 742-first slurry return channel,

[0064] 8-Drill rod,

[0065] 9-Slurry pumping valve

[0066] 10-Acquisition module,

[0067] 101-pressure gauge,

[0068] 102-First Weight Scale,

[0069] 103- Second weight scale,

[0070] 104-Flow monitoring meter,

[0071] 20- Main control module,

[0072] 30- Grouting valve,

[0073] 40-walking car,

[0074] 50-Piling mechanism. DETAILED DESCRIPTION

[0075] The present invention will be further described in detail below with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments, as all technologies implemented based on the present invention fall within the scope of the present invention.

[0076] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or positional relationship, such as "upper", "lower", "left", "right", "center", "inside", and "outside", are based on the expressions of the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the invented product / device / apparatus is placed when it is conventionally used. These terms of orientation or positional relationship are merely for the purpose of facilitating the description of the scheme of the present invention or simplifying the description of the specific embodiments to facilitate the rapid understanding of the scheme by technicians, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship, and therefore should not be understood as limiting the present invention.

[0077] Furthermore, the use of terms such as "horizontal," "vertical," "overhanging," "parallel," and "coaxial" does not necessarily require the corresponding devices / components / elements to be absolutely horizontal, vertical, overhanging, parallel, or coaxial. Rather, they may be slightly tilted or deviated, as long as this does not affect the proper function of the relevant components. For example, "horizontal" simply means that the orientation is more horizontal than "vertical," and does not imply that the structure must be completely horizontal; rather, it may be slightly tilted. "Coaxial" means that the two components are arranged as coaxially as possible, ensuring that they move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding devices / components / elements, when arranged in a "horizontal," "vertical," "overhanging," "parallel," or "coaxial" orientation, can have an error / deviation of ±10% relative to the corresponding orientation, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and even more preferably within ±4%. For example, the deviation in the "coaxial" orientation is controlled within 0.2-1 mm, preferably within 0.2-0.5 mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the present invention.

[0078] In addition, the expressions “first”, “second”, “third”, etc. in the terms are merely used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0079] In addition, in the description of the embodiments of the present invention, "several," "plurality," and "a number" represent at least two. It can also be any number such as two, three, four, five, six, seven, eight, nine, or even more than nine.

[0080] Furthermore, in the description of the technical solution of the present invention, unless otherwise expressly specified, defined, or limited, the terms "disposed," "installed," "connected," "connected," "provided with," "laid," and "arranged" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welded, riveted, bolted, threaded, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communicative; they may be direct, indirect via an intermediate medium, or internally connected between two components.

[0081] Example 1

[0082] like Figure 1-Figure 7 As shown, this embodiment provides an integrated system for tunnel reinforcement, including a traveling vehicle 40, which is equipped with a grouting system, a waste liquid recovery system, a drill rod 8, a collection module 10, and a main control module 20. The grouting system is used to inject grout into the pile hole through the drill rod 8, and the waste liquid recovery system is used to extract grout from the pile hole.

[0083] The acquisition module 10 is used to collect the hole pressure information in the pile hole in real time;

[0084] The main control module 20 is used to receive the in-hole pressure information in real time and control the slurry extraction volume of the waste liquid recovery system according to the in-hole pressure information to maintain the in-hole pressure balance of the pile hole.

[0085] An integrated system for tunnel reinforcement in this embodiment is provided with a slurry supply system, a waste liquid recovery system, a drill rod 8, a collection module 10 and a main control module 20 on a traveling vehicle 40. The integrated system can perform processes such as drilling, grouting and slurry extraction, thereby reducing the tedious coordination and connection links between traditional multiple devices, greatly reducing the workload of construction personnel and improving construction efficiency. Furthermore, the acquisition module collects the in-hole pressure information in the pile hole in real time, the main control module 20 receives the in-hole pressure information in real time, and controls the slurry extraction amount of the waste liquid recovery system according to the in-hole pressure information to maintain the in-hole pressure balance in the pile hole, thereby ensuring that the in-hole pressure in the pile hole can be kept balanced during the tunnel pile foundation reinforcement process, avoiding secondary damage to the tunnel due to unbalanced soil pressure in the pile hole, and also ensuring the quality of the pile.

[0086] The integrated system for tunnel reinforcement of the present application is applied in the field of underground engineering technology, including subway tunnels, highway tunnels, railway tunnels, etc.

[0087] A preferred method, such as Figure 1 、 Figure 2 、 Figure 7 As shown, the waste liquid recovery system includes a waste liquid tank 6, a slurry pump and a slurry return device 7. The slurry return device 7 is installed on the drill pipe 8, and the slurry return device 7 is connected to the pile hole;

[0088] The acquisition module 10 includes a pressure gauge 101, which is provided on the slurry return device 7 and is used to collect the in-hole pressure information in the pile hole in real time;

[0089] It also includes a slurry extraction valve 9, which is arranged on the slurry return device 7, and the waste liquid tank 6 is connected to the slurry extraction valve 9 through a slurry extraction pump;

[0090] The main control module 20 controls the slurry pumping amount of the slurry pump according to the in-hole pressure information.

[0091] By setting a pressure gauge 101 on the slurry return device 7, the pressure gauge 101 collects the hole pressure information in the pile hole in real time and feeds it back to the main control module 20. The main control module 20 controls the slurry pumping amount of the slurry pump according to the hole pressure information, thereby controlling the soil pressure in the pile hole.

[0092] In an optional embodiment, if Figure 4 、 Figure 5As shown, the grouting device 7 includes a sealing device 71, a compression sleeve 72, a grouting cylinder 73 and a base 74 that are interconnected. Along the length direction of the drill pipe 8, the sealing device 71, the compression sleeve 72, the grouting cylinder 73 and the base 74 are installed on the drill pipe 8 from top to bottom. The base 74 is fixed to the tunnel wall, and the base 74 and the grouting cylinder 73 are connected to the pile hole.

[0093] The pressure gauge 101 and the slurry extraction valve 9 are installed on the slurry return cylinder 73.

[0094] The sealing device 71, the compression sleeve 72, the slurry return cylinder 73 and the base are installed on the drill rod 8. The sealing device 71 and the compression sleeve 72 seal the drill rod 8 to prevent the slurry in the pile hole from overflowing along the drill rod.

[0095] The base 74 is fixed to the tunnel wall to prevent the grouting device 7 from shaking. Furthermore, the base 74 and the grouting drum 73 are connected to the pile hole, so that the cement slurry in the pile hole can be returned to the grouting drum 73. The pressure information in the pile hole is monitored by the pressure gauge 101 installed on the grouting drum 73. The main control module 20 controls the grouting amount of the grouting pump according to the size of the pressure information in the hole to ensure the pressure balance in the hole.

[0096] Specifically:

[0097] When the pressure information in the hole is lower than the preset value, the main control module 20 controls the grouting pump to slow down or stop pumping grouting to avoid excessively low pressure in the pile hole. The pile hole gradually increases the pressure during the grouting process until the pressure in the pile hole is equal to the preset value. At this time, when the pressure in the pile hole is in a balanced state, the main control module 20 controls the grouting amount per unit time of the grouting pump to make the grouting amount per unit time of the grouting pump equal to the grouting amount per unit time in the pile hole;

[0098] When the pressure information in the hole is higher than the preset value, the main control module 20 controls the waste liquid recovery system to start or accelerate the grouting to reduce the pressure in the pile hole until the pressure in the pile hole is equal to the preset value. At this time, when the pressure in the pile hole is in a balanced state, the main control module 20 controls the grouting volume per unit time of the grouting pump to make the grouting volume per unit time of the grouting pump equal to the grouting volume per unit time in the pile hole.

[0099] In an optional embodiment, if Figure 4 、 Figure 5 As shown, the base 74 has a first slurry return channel 742 provided therein, and the first slurry return channel 742 is connected to the pile hole;

[0100] The pulp return cylinder 73 has a pulp return chamber 731 inside, and the pulp return chamber 731 is connected to the first pulp return channel 742;

[0101] The slurry pump pumps slurry from the slurry return tube 73 through the slurry pumping valve 9 to adjust the pressure in the pile hole.

[0102] In an optional embodiment, if Figure 5 As shown, a grouting valve 30 is also included. The grouting valve 30 is installed on the grouting cylinder 73. The grouting valve 30 is used to grout the grouting cylinder 73 to further adjust the pile hole pressure.

[0103] In an optional embodiment, if Figure 5 As shown, the compression sleeve 72 includes a coaxially arranged sleeve 721, a radial sealing sleeve 722 and an axial transition sleeve 723. The radial sealing sleeve 722 is located in the sleeve 721, the axial transition sleeve 723 is located in the radial sealing sleeve 722, and the axial transition sleeve 723 is installed on the drill pipe 8;

[0104] The radial sealing sleeve 722 and the axial transition sleeve 723 are cylindrical, and the inner wall of the axial transition sleeve 723 is adapted to the shape of the drill pipe 8.

[0105] The outer wall of the radial sealing sleeve 722 abuts against the inner wall of the sleeve 721, and the outer wall of the axial transition sleeve 723 abuts against the radial sealing sleeve 722. The sleeve 721, as the outer layer structure of the compression sleeve 72, plays an overall supporting and protective role, providing an installation position and external protection for the internal radial sealing sleeve 722 and axial transition sleeve 723.

[0106] Furthermore, the axial transition sleeve 723 is installed on the drill rod 8, and its inner wall is adapted to the shape of the drill rod 8. Its main function is to serve as a transition connection between the drill rod 8 and other components, so that the drill rod 8 can better cooperate with the compression sleeve 72. At the same time, it can also withstand the axial force and torque of the drill rod 8 during operation, playing the role of transmitting force and motion.

[0107] Furthermore, the radial sealing sleeve 722 is located in the sleeve 721 to achieve a sealing function in the radial direction of the drill pipe 8 and prevent the slurry in the slurry return tube 73 from overflowing from the compression sleeve 72 .

[0108] In an optional embodiment, if Figure 5 As shown, the sealing device 71 includes a shell 711 and a bladder 712 located in the shell 711. The shell 711 is also provided with an air injection valve 713.

[0109] The bladder 712 is sleeved on the drill rod 8 .

[0110] Inflate the outer shell 711 with gas through the gas injection valve 713 so that the bladder 712 holds the drill rod 8 tightly after inflation;

[0111] Specifically, an independent air pump is connected to the air injection valve 713, and compressed air is injected into the housing 711 through the independent air pump. The air pressure in the housing 711 presses the bladder 712 against the drill rod 8, causing the bladder 712 to deform and wrap around the outer wall of the drill rod 8, thereby sealing the orifice of the drill rod 8.

[0112] After gas injection, the bladder 712 is deformed and wraps around the outer wall of the drill rod 8, thereby effectively sealing the drill rod 8.

[0113] The material of the bladder 712 is soft rubber. At the same time, it has high flexibility and can adapt to the movement of the drill rod 8 during the rotation and lifting of the drill rod 8.

[0114] In an optional embodiment, if Figure 5 As shown, the base 74 is provided with an arc-shaped bottom plate 741 close to the tunnel wall. The arc-shaped bottom plate 741 is adapted to the tunnel wall and is bolted to the tunnel wall.

[0115] The base 74 is provided with a curved bottom plate 741 adapted to the tunnel wall so that the base 74 fits tightly against the tunnel wall. The curved bottom plate 741 is mounted on the tunnel wall by bolting, thereby achieving a fixed installation of the base 74 on the tunnel wall.

[0116] The area of ​​the arc bottom plate 741 covers the pile hole;

[0117] The base 74 has a first slurry return channel 742 extending therethrough, and the first slurry return channel 742 is in communication with the pile hole;

[0118] The slurry return cylinder 73 is connected to the first slurry return channel 742 .

[0119] In an optional embodiment, the sealing device 71, the compression sleeve 72, the slurry return cylinder 73 and the base 74 are connected by flanges, that is, the sealing device 71, the compression sleeve 72, the slurry return cylinder 73 and the base 74 are all provided with flange plates, and the two adjacent components are connected and fixed by flange connections.

[0120] A preferred method, such as Figure 1 、 Figure 2 As shown, the slurry supply system includes a cement storage tank 1, a water tank 2, a mixing tank 3, a storage tank 4 and a high-pressure grouting pump 5. The cement storage tank 1 and the water tank 2 are connected to the mixing tank 3, the mixing tank 3 is connected to the storage tank 4, and the storage tank 4 is connected to the high-pressure grouting pump 5. The high-pressure grouting pump 5 is used to transport high-pressure slurry to the drill pipe 8.

[0121] The cement storage tank 1 and the water tank 2 provide cement and water to the mixing tank 3, and the mixing tank 3 mixes the cement and water to form cement slurry. The mixing tank 3 then provides the slurry to the storage tank 4, and the storage tank 4 outputs the slurry to the high-pressure grouting pump 5, and the high-pressure grouting pump 5 delivers the high-pressure slurry to the drill pipe 8.

[0122] In an optional embodiment, if Figure 7As shown, the acquisition module 10 further includes a first weight scale 102, a second weight scale 103 and a flow monitor 104. The flow monitor 104 is provided on the connection channel between the storage tank 4 and the high-pressure grouting pump 5, and is used to collect grouting amount information of the storage tank 4 in real time;

[0123] The first weighing scale 102 is provided at the bottom of the cement storage tank 1 and is used to collect the weight information of the cement powder in the cement storage tank 1 in real time;

[0124] The second weight scale 103 is provided at the bottom of the water tank 2 and is used to collect the water weight information in the water tank 2 in real time;

[0125] The main control module 20 is used to receive grouting volume information, powder weight information and water weight information in real time, and control the cement storage tank 1 and water tank 2 to transport cement powder and water into the mixing tank 3 so that the slurry volume in the storage tank 4 is maintained within a preset range.

[0126] By setting a first weight scale 102 at the bottom of the cement storage tank 1 and a second weight scale 103 at the bottom of the water tank 2, the main control module 20 can obtain the weight changes of the powder and water in real time, and dynamically adjust the cement and water delivery rates in combination with the grouting volume information collected by the flow monitor, so that the slurry volume in the storage tank 4 is maintained within a preset range, ensuring that the high-pressure grouting pump 5 can continuously provide slurry in the storage tank 4 during the grouting process, while also avoiding the problem of slurry shortage or overflow caused by manual operation, thereby improving construction efficiency and grouting stability.

[0127] In an optional embodiment, the pressure gauge 101, the first weight scale 102, the second weight scale 103 and the flow monitor 104 are interconnected with the main control module 20 via a wired network cable or a wireless network;

[0128] The main control module 20 is connected to the cement storage tank 1, the water storage tank 2, the mixing tank 3, the storage tank 4, the high-pressure grouting pump 5 and the drill pipe 8 respectively through a wired network cable or a wireless network;

[0129] The main control module 20 is connected to the waste liquid tank 6, the slurry extraction pump, the slurry extraction valve 9, and the slurry replenishment valve 30 respectively through a wired network cable or a wireless network.

[0130] In an optional embodiment, the slurry extraction valve 9 and the slurry replenishment valve 30 are electronic valves.

[0131] In an optional implementation manner, the main control module 20 includes a CPU, a communication interface, a data preprocessing unit, a data analysis unit, a control algorithm unit, a driving circuit, a memory, and the like.

[0132] In an optional embodiment, a piling mechanism 50 is further included. The piling mechanism 50 is installed on the traveling vehicle 40, and the piling mechanism 50 drives the drill rod 8 to perform pile hole construction.

[0133] Example 2

[0134] like Figure 1-Figure 7 As shown, based on Example 1, a construction process for tunnel reinforcement in this embodiment uses the integrated system for tunnel reinforcement described in Example 1, including the following steps:

[0135] S1: Control the traveling vehicle 40 to travel to the designated construction location in the tunnel, and inspect the slurry supply system, waste liquid recovery system, drill pipe 8, acquisition module 10 and main control module 20 to confirm that the equipment is fault-free and all connections are secure and reliable;

[0136] S2: Start the drill rod 8 to drill. After reaching the designed elevation, start the slurry supply system to deliver high-pressure slurry to the drill rod 8. The drill rod 8 is gradually withdrawn and rotated for grouting.

[0137] The slurry supply system includes a cement storage tank 1, a water tank 2, a mixing tank 3, a storage tank 4, and a high-pressure grouting pump 5. The cement storage tank 1 and the water tank 2 are controlled to deliver cement powder and water to the mixing tank 3. The mixing tank 3 delivers the prepared slurry to the storage tank 4. The storage tank 4 delivers the slurry to the high-pressure grouting pump 5. During grouting, the high-pressure grouting pump 5 delivers high-pressure slurry to the drill pipe 8.

[0138] S3: During the grouting process, the acquisition module 10 collects the in-hole pressure information in the pile hole in real time and feeds it back to the main control module 20. The main control module 20 controls the grouting amount of the waste liquid recovery system according to the in-hole pressure information.

[0139] When the hole pressure information is lower than the preset value, the main control module 20 controls the waste liquid recovery system to slow down or stop grouting until the hole pressure information is equal to the preset value. Then the main control module 20 controls the grouting volume per unit time of the waste liquid recovery system to make the grouting volume per unit time equal to the grouting volume per unit time in the pile hole.

[0140] When the pressure information in the hole is higher than the preset value, the main control module 20 controls the waste liquid recovery system to start or accelerate the grouting until the pressure information in the hole is equal to the preset value. Then the main control module 20 controls the grouting volume per unit time of the waste liquid recovery system to make the grouting volume per unit time equal to the grouting volume per unit time in the pile hole.

[0141] The waste liquid recovery system includes a waste liquid tank 6, a slurry pump and a slurry return device 7. The slurry return device 7 is installed on the drill pipe 8 and is connected to the pile hole.

[0142] The acquisition module 10 includes a pressure gauge 101, which is provided on the slurry return device 7 and is used to collect the in-hole pressure information in the pile hole in real time;

[0143] It also includes a slurry extraction valve 9, which is arranged on the slurry return device 7, and the waste liquid tank 6 is connected to the slurry extraction valve 9 through a slurry extraction pump;

[0144] The main control module 20 controls the slurry pumping amount according to the in-hole pressure information;

[0145] Specifically, when the pressure information in the hole is lower than the preset value, the main control module 20 controls the grouting pump to slow down or stop pumping grouting to avoid excessively low pressure in the pile hole. The pile hole gradually increases the pressure during the grouting process until the pressure in the pile hole is equal to the preset value. At this time, when the pressure in the pile hole is in a balanced state, the main control module 20 controls the grouting amount per unit time of the grouting pump to make the grouting amount per unit time of the grouting pump equal to the grouting amount per unit time in the pile hole.

[0146] When the pressure information in the hole is higher than the preset value, the main control module 20 controls the waste liquid recovery system to start or accelerate the grouting to reduce the pressure in the pile hole until the pressure in the pile hole is equal to the preset value. At this time, when the pressure in the pile hole is in a balanced state, the main control module 20 controls the grouting volume per unit time of the grouting pump to make the grouting volume per unit time of the grouting pump equal to the grouting volume per unit time in the pile hole.

[0147] A construction process for tunnel reinforcement in this embodiment uses a traveling vehicle 40 for precise positioning, and a high-pressure grouting operation is performed after the drill rod 8 completes drilling. During the grouting process, the acquisition module 10 monitors the hole pressure in the pile hole in real time and feeds the data back to the main control module 20. The main control module 20 regulates the grouting amount of the waste liquid recovery system according to the hole pressure information: when the hole pressure is lower than the preset value, the grouting is slowed down or stopped; when it is higher than the preset value, the grouting is accelerated, and finally the grouting amount is equal to the grouting amount, achieving pressure balance, effectively improving construction efficiency and quality, ensuring construction safety, and reducing environmental pollution and material loss.

[0148] A preferred method, such as Figure 2 As shown, in step S2, the slurry supply system includes a cement storage tank 1, a water storage tank 2, a mixing tank 3, a storage tank 4 and a high-pressure grouting pump 5, and the acquisition module 10 also includes a first weight scale 102, a second weight scale 103 and a flow monitor 104;

[0149] The flow monitoring meter 104 is provided on the connection channel between the storage tank 4 and the high-pressure grouting pump 5, and collects the grouting amount information of the storage tank 4 in real time;

[0150] The first weighing scale 102 is provided at the bottom of the cement storage tank 1 and collects the weight information of the cement powder in the cement storage tank 1 in real time;

[0151] The second weight scale 103 is provided at the bottom of the water tank 2 and collects the water weight information in the water tank 2 in real time;

[0152] The main control module 20 receives grouting volume information, powder weight information and water weight information in real time, and controls the cement storage tank 1 and the water tank 2 to transport cement powder and water into the mixing tank 3 so that the slurry volume in the storage tank 4 is maintained within a preset range.

[0153] The flow monitor 104, the first weight scale 102 and the second weight scale 103 collect grouting amount information, cement powder and water weight information in real time. The main control module 20 adjusts the cement classification and water delivery according to the above information to achieve accurate proportioning and dynamic balance of slurry preparation, ensure that the slurry amount in the storage tank 4 is maintained within the preset range, ensure that the high-pressure grouting pump 5 is in the grouting process, and the storage tank 4 can continuously provide slurry, thereby improving the automation level and construction continuity.

[0154] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integrated system for tunnel reinforcement, characterized in that: The invention comprises a traveling vehicle (40), wherein the traveling vehicle (40) is provided with a slurry supply system, a waste liquid recovery system, a drill rod (8), a collection module (10) and a main control module (20), wherein the slurry supply system is used for injecting grout into the pile hole through the drill rod (8), and the waste liquid recovery system is used for pumping slurry from the pile hole; The acquisition module (10) is used to collect the in-hole pressure information in the pile hole in real time; The main control module (20) is used to receive the in-hole pressure information in real time and control the slurry extraction volume of the waste liquid recovery system according to the in-hole pressure information to maintain the in-hole pressure balance of the pile hole.

2. The integrated system for tunnel reinforcement according to claim 1, characterized in that: The waste liquid recovery system comprises a waste liquid tank (6), a slurry pump and a slurry return device (7), wherein the slurry return device (7) is installed on the drill rod (8), and the slurry return device (7) is connected to the pile hole; The acquisition module (10) comprises a pressure gauge (101), the pressure gauge (101) being arranged on the slurry return device (7), and the pressure gauge (101) being used for collecting the in-hole pressure information in the pile hole in real time; It also includes a slurry extraction valve (9), which is arranged on the slurry return device (7), and the waste liquid tank (6) is connected to the slurry extraction valve (9) through the slurry extraction pump; The main control module (20) controls the slurry pumping volume of the slurry pump according to the in-hole pressure information.

3. The integrated system for tunnel reinforcement according to claim 2, characterized in that: The grouting device (7) comprises a sealing device (71), a compression sleeve (72), a grouting cylinder (73) and a base (74) which are interconnected. Along the length direction of the drill rod (8), the sealing device (71), the compression sleeve (72), the grouting cylinder (73) and the base (74) are sequentially installed on the drill rod (8) from top to bottom. The base (74) is fixed on the tunnel pipe wall, and the base (74) and the grouting cylinder (73) are connected to the pile hole. The pressure gauge (101) and the slurry extraction valve (9) are installed on the slurry return cylinder (73).

4. The integrated system for tunnel reinforcement according to claim 3, characterized in that: The compression sleeve (72) includes a coaxially arranged sleeve (721), a radial sealing sleeve (722) and an axial transition sleeve (723), wherein the radial sealing sleeve (722) is located in the sleeve (721), the axial transition sleeve (723) is located in the radial sealing sleeve (722), and the axial transition sleeve (723) is installed on the drill pipe (8); The radial sealing sleeve (722) and the axial transition sleeve (723) are cylindrical, and the inner wall of the axial transition sleeve (723) is adapted to the shape of the drill rod (8).

5. The integrated system for tunnel reinforcement according to claim 3, characterized in that: The sealing device (71) comprises a shell (711) and a bladder (712) located in the shell (711), and the shell (711) is further provided with an air injection valve (713); The bladder (712) is sleeved on the drill rod (8).

6. The integrated system for tunnel reinforcement according to claim 3, characterized in that: The base (74) is provided with an arc-shaped bottom plate (741) close to the tunnel wall. The arc-shaped bottom plate (741) is adapted to the tunnel wall and is bolted to the tunnel wall.

7. The integrated system for tunnel reinforcement according to claim 1, characterized in that: The slurry supply system comprises a cement storage tank (1), a water tank (2), a mixing tank (3), a storage tank (4) and a high-pressure grouting pump (5); the cement storage tank (1) and the water tank (2) are connected to the mixing tank (3); the mixing tank (3) is connected to the storage tank (4); the storage tank (4) is connected to the high-pressure grouting pump (5); and the high-pressure grouting pump (5) is used to deliver high-pressure slurry to the drill rod (8).

8. The integrated system for tunnel reinforcement according to claim 7, characterized in that: The acquisition module (10) further comprises a first weight scale (102), a second weight scale (103) and a flow monitor (104); the flow monitor (104) is provided on a connection channel between the storage tank (4) and the high-pressure grouting pump (5) and is used for real-time acquisition of grouting volume information of the storage tank (4); The first weight scale (102) is provided at the bottom of the cement storage tank (1) and is used to collect cement powder weight information in the cement storage tank (1) in real time; The second weight scale (103) is provided at the bottom of the water storage tank (2) and is used to collect water weight information in the water storage tank (2) in real time; The main control module (20) is used to receive the grouting volume information, the powder weight information and the water weight information in real time, and to control the cement storage tank (1) and the water storage tank (2) to transport cement powder and water into the mixing tank (3), so that the slurry volume in the storage tank (4) is maintained within a preset range.

9. A construction process for tunnel reinforcement, characterized in that: Using an integrated system for tunnel reinforcement according to any one of claims 1 to 8 comprises the following steps: S1: Controlling the traveling vehicle (40) to travel to a designated construction location in the tunnel; S2: Start the drill rod (8) to drill, and after reaching the designed elevation, start the slurry supply system to deliver high-pressure slurry to the drill rod (8), and the drill rod (8) is gradually withdrawn and rotated for grouting; S3: During the grouting process into the pile hole, the acquisition module (10) acquires the in-hole pressure information in the pile hole in real time and feeds it back to the main control module (20), and the main control module (20) controls the grouting amount of the waste liquid recovery system according to the in-hole pressure information; When the hole pressure information is lower than a preset value, the main control module (20) controls the waste liquid recovery system to slow down or stop grouting until the hole pressure information is equal to the preset value, and then the main control module (20) controls the grouting volume per unit time of the waste liquid recovery system to make the grouting volume per unit time equal to the grouting volume per unit time in the pile hole; When the pressure information in the hole is higher than a preset value, the main control module (20) controls the waste liquid recovery system to start or accelerate grouting until the pressure information in the hole is equal to the preset value, and then the main control module (20) controls the grouting volume per unit time of the waste liquid recovery system to make the grouting volume per unit time equal to the grouting volume per unit time in the pile hole.

10. The construction process for tunnel reinforcement according to claim 9, characterized in that: In step S2, the slurry supply system includes a cement storage tank (1), a water storage tank (2), a mixing tank (3), a storage tank (4) and a high-pressure grouting pump (5), and the acquisition module (10) further includes a first weight scale (102), a second weight scale (103) and a flow monitor (104); The flow rate monitor (104) is provided on the connection channel between the storage tank (4) and the high-pressure grouting pump (5), and collects grouting volume information of the storage tank (4) in real time; The first weight scale (102) is arranged at the bottom of the cement storage tank (1) and collects cement powder weight information in the cement storage tank (1) in real time; The second weight scale (103) is arranged at the bottom of the water storage tank (2) and collects water weight information in the water storage tank (2) in real time; The main control module (20) receives the grouting volume information, the powder weight information and the water weight information in real time, and controls the cement storage tank (1) and the water storage tank (2) to transport cement powder and water into the mixing tank (3), so that the slurry volume in the storage tank (4) is maintained within a preset range.

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