Multi-channel zoned coordinated grouting device and method for tunnel corridors

Abstract

This invention relates to the field of grouting construction equipment technology, aiming to solve the problems of loose layout, chaotic pipeline arrangement, need for rewiring and debugging after site relocation, low deployment efficiency, and decentralized control system, making it difficult to achieve multi-channel collaborative operation and centralized monitoring in existing grouting equipment. The invention provides a multi-channel zoned collaborative grouting device and method for tunnel corridors. The device includes a mobile trolley, which is equipped with a grouting area, a pressure regulating area, a central control area, and a maintenance and pipeline area. A grout mixing tank is arranged in the grouting area; a pressure regulating platform is arranged in the pressure regulating area; each pressure regulating platform corresponds to one of the grout mixing tanks and is connected through pipelines; each grout mixing tank is connected to the main grout supply pipe and the main water inlet pipe; a grouting power distribution cabinet and a central control console are arranged in the central control area, with the grouting power distribution cabinet connected to the main power supply line; the pressure regulating platform is connected to the central control console; the wastewater discharge outlets of the grout mixing tanks and the pressure regulating platform are connected to the main sewage pipe; the main grout supply pipe, the main water inlet pipe, the main power supply line, and the main sewage pipe are centrally located in the maintenance and pipeline area.

Description

Technical Field

[0001] This invention relates to the field of grouting construction equipment technology, and more specifically, to a multi-channel zoned collaborative grouting device and method for tunnel corridors. Background Technology

[0002] In water conservancy and hydropower, tunnel lining, and underground engineering construction, grouting is a crucial process for ensuring structural stability and seepage prevention. Traditional grouting equipment is usually distributed in a decentralized manner, with grout mixing equipment, pressure regulating equipment, and control systems operating independently. This results in long on-site installation cycles, complex pipelines, and large land areas, making it difficult to meet the high-efficiency construction needs in narrow spaces such as tunnel corridors.

[0003] In addition, existing grouting equipment is mostly designed for open sites and lacks specific optimization for corridor environments, resulting in the following problems: 1. The equipment layout is loose, and the various functional areas interfere with each other, making operation and maintenance inconvenient; 2. The pipeline layout is chaotic, and the sewage and slurry supply systems lack unified planning, which can easily lead to cross-contamination; 3. Lack of modular design; equipment needs to be rewired and debugged after relocation, resulting in low deployment efficiency. 4. The control system is decentralized, making it difficult to achieve multi-channel collaborative operation and centralized monitoring.

[0004] Therefore, there is an urgent need for an integrated, modular, and intelligent multi-channel grouting device that is specifically optimized for corridor environments. Summary of the Invention

[0005] The present invention aims to provide a multi-channel zoned collaborative grouting device and method for tunnel corridors, in order to solve the problems of loose layout of existing grouting equipment, mutual interference between functional areas, inconvenience of operation and maintenance, chaotic pipeline layout, need for rewiring and debugging after relocation, low deployment efficiency, and decentralized control system, which makes it difficult to achieve multi-channel collaborative operation and centralized monitoring.

[0006] This invention is achieved using the following technical solution: The present invention provides a multi-channel zoned collaborative grouting device for tunnel corridors, including a mobile trolley, which has multiple functional areas, including a grouting area, a pressure regulating area, a central control area, and a maintenance and pipeline area. The grouting area is equipped with multiple grout mixing tanks to achieve multi-channel grouting; Multiple pressure regulating platforms are arranged in the pressure regulating zone to control the grouting pressure; Each pressure regulating platform corresponds to a grout mixing tank and is connected to it via pipelines to form multiple independent and controllable grouting channels; Each of the aforementioned slurry mixing tanks is connected to the main slurry supply pipe and the main water inlet pipe; The central control area is equipped with a grouting power distribution cabinet and a central control console. The grouting power distribution cabinet is connected to the main power supply line. The voltage regulating platform is connected to the central control console for signal control of the grouting process. The wastewater discharge outlets of all the aforementioned slurry mixing tanks and the pressure regulating platform are connected to the main sewage pipe; The main grout supply pipe, the main water inlet pipe, the main power supply line, and the main sewage pipe are centrally located in the maintenance and pipeline area.

[0007] The mobile trolley of this invention has multiple functional areas, including a grouting area, a pressure regulating area, a central control area, and a maintenance and pipeline area. It achieves a highly integrated design, has a small overall footprint, and is compact in size. It can be arranged on one side of the tunnel corridor without occupying passage space, thus completely solving the problem that traditional grouting equipment has a large footprint and is difficult to adapt to narrow corridor construction. The overall layout is compact, with functional areas not interfering with each other, facilitating operation and maintenance. Pipelines are centrally arranged in the maintenance and pipeline area, solving the problems of messy pipelines, lack of unified planning for sewage and slurry supply systems, and easy cross-contamination in traditional equipment. The device adopts a modular integrated design, with all slurry preparation, pressure regulation, control, and pipeline systems integrated on the same mobile trolley. It can be moved and relocated as a whole, without the need for disassembly, rewiring, and debugging on site. It can be put into use simply by quickly connecting external pipelines and power supply, which solves the problems of long installation cycle, need for rewiring and debugging after relocation, and low deployment efficiency of traditional distributed equipment. The central control area is integrated on the mobile trolley, which solves the problem of decentralized control systems. The grouting process is centrally controlled through the central control console, realizing multi-channel collaborative operation and centralized monitoring.

[0008] As a preferred technical solution: Each of the slurry mixing tanks is connected to the main slurry supply pipe and the main water inlet pipe via branch pipes. Each branch pipe is equipped with a control valve, which is connected to the central control console for signal control of the slurry mixing process.

[0009] As a preferred technical solution: The grouting zone and the pressure regulating zone are respectively arranged on both sides of the length direction of the mobile trolley, and are arranged opposite to each other; The maintenance and pipeline area is located in the middle of the mobile trolley and between the grouting area and the pressure regulating area; The central control area and the pressure regulating area are located on the same side, and the central control area is adjacent to the pressure regulating area and the maintenance and pipeline area.

[0010] As a preferred technical solution: Multiple integrated grout mixing tanks are arranged sequentially along the length of the mobile trolley within the grouting area. Multiple integrated pressure regulating platforms are arranged sequentially along the length of the mobile trolley within the pressure regulating zone. A grouting pump is installed on the pipeline between the integrated pressure regulating platform and the integrated grout mixing tank. The grouting pump is used to extract the grout from the integrated grout mixing tank.

[0011] As a preferred technical solution: A support is installed above the integrated slurry mixing tank, and the branch pipe is laid on the support. The height of the support is higher than the position of the integrated slurry mixing tank injector, so as to realize gravity-flow slurry supply.

[0012] As a preferred technical solution: The integrated slurry mixing tank is equipped with a stirring device and a liquid level sensor. The stirring motor of the stirring device and the liquid level sensor are both connected to the central control panel.

[0013] As a preferred technical solution: The integrated pressure regulating platform has a built-in pressure regulating valve group, pressure sensor and pressure relief circuit; The pressure sensor is used to collect the grout pressure signal in the pipeline in real time, the pressure regulating valve group is used to regulate the grouting pressure, and the pressure relief circuit is used to realize overpressure protection. The pressure regulating valve group, the pressure sensor, and the pressure relief circuit are all integrated and installed on the pipeline inside the integrated pressure regulating platform; The pressure regulating valve assembly, the pressure sensor, and the pressure relief circuit are all connected to the central control panel.

[0014] As a preferred technical solution: The signal cables of the pressure regulating valve group, the pressure sensor and the pressure relief circuit are laid along the cable tray at the bottom of the mobile trolley. The main water inlet pipe, the main slurry supply pipe, the main sewage discharge pipe, and the main power supply line are all centrally located on the bottom support of the maintenance and pipeline area, and each pipeline is fixed with pipe clamps.

[0015] As a preferred technical solution: The central control console includes an all-in-one industrial computer and a PLC controller; The integrated slurry mixing tank is equipped with a control cabinet. The PLC controller is connected to the control cabinet of each integrated slurry mixing tank, the pressure sensor of the integrated pressure regulating platform, the pressure regulating valve group and the pressure relief circuit, the main slurry supply pipe and the main water inlet pipe, and the main control valve. The control cabinet is connected to the level sensor, density sensor, stirring motor corresponding to the integrated slurry mixing tank, electric ball valve on the corresponding branch pipe, and drain valve of the integrated slurry mixing tank. The all-in-one industrial computer is connected to the PLC controller.

[0016] This invention further provides a method for multi-channel zoned coordinated grouting of tunnel corridors, which is based on the above-mentioned multi-channel zoned coordinated grouting device for tunnel corridors. The method includes the following steps: S1: Device deployment; Move the mobile trolley to the work position, and fix and level the trolley; Connect the external water source, slurry source, power supply system and sewage system to the main water inlet pipe, main slurry supply pipe, main power supply line and main sewage pipe of the unit respectively; S2: System startup; Turn on the main power supply of the grouting distribution cabinet, start the all-in-one industrial computer of the central control console, enter the grouting control system interface, and perform self-test of communication for each channel. S3: Preparation for slurry supply; Open the main control valve on the main grout supply pipe and the main water inlet pipe through the central control console, control the control valve on each branch pipe through the central control console, select single channel or full channel grout supply according to construction needs, and automatically mix grout in the integrated grout mixing tank according to the set value. S4: Grouting operation; Operators set the target grouting pressure and flow rate parameters for each channel through the central control console in the central control area, and then start the grouting program. The mixing motor of the grout mixing tank is started, and the grout is transported to the integrated pressure regulating platform through pipeline. The integrated pressure regulating platform automatically adjusts the valve opening according to the set pressure to achieve constant pressure grouting. The multi-channel zoned collaborative grouting device in the tunnel corridor collects data in real time and generates grouting curves and reports. S5: Sewage discharge and cleaning; After grouting is completed, the drain valves of each integrated grout mixing tank are opened via the central control console. The remaining grout and cleaning wastewater are discharged into the main drain pipe through the drain branch pipes. The integrated pressure regulating platform is cleaned simultaneously, and the wastewater is also connected to the main drain pipe. S6: Transition; Disconnect the external pipelines, move the mobile trolley to the next work area, and repeat the above process.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. Strong adaptability to corridor environment: The total area occupied by the device is controlled within 11 square meters. The layout of each functional area is compact and the orientation is uniform. It can be arranged on one side in tunnel corridors with limited width, which meets the requirements of narrow space operation.

[0018] 2. Standardized workstation for rapid deployment: The device adopts an integrated trolley structure, with pre-integrated pipelines and standardized interfaces in each functional area. On-site, only the main water inlet pipe, main slurry supply pipe, main power supply line and main sewage pipe need to be connected to quickly put it into operation, which greatly shortens the on-site installation and commissioning time and has the ability to be deployed quickly in one stop.

[0019] 3. Multi-channel zoned collaborative operation: Five independent grouting channels are set up, with the grouting area and pressure regulating area corresponding one-to-one. The central control area is centrally controlled, which can realize independent control or collaborative grouting of multiple channels, meeting the flexible operation needs under complex working conditions.

[0020] 4. Significantly improved ease of maintenance: The inspection and pipeline area is centrally located, facilitating unified maintenance of equipment on both sides; all pipelines are centrally routed, reducing cross-interference; the valves in the pressure regulating area and the electrical control cabinet in the grouting area are oriented towards the center, making it convenient for operators to operate and maintain them nearby.

[0021] 5. Neat pipelines and unified sewage discharge: Supports are installed above the slurry mixing tank to purify the cables, and the sewage pipes at the bottom are uniformly connected to the main sewage pipe. Sewage from the pressure regulating area is connected at the same time to achieve centralized discharge of sewage and wastewater, avoiding messy pipelines and secondary pollution on site. Attached Figure Description

[0022] Figure 1 This is a plan view of the multi-channel zoned collaborative grouting device for tunnel corridors described in this invention.

[0023] Figure 2 This is a schematic diagram of the integrated slurry mixing tank described in this invention.

[0024] Figure 3 This is a schematic diagram of the integrated voltage regulating platform described in this invention. Figure 1 .

[0025] Figure 4 This is a schematic diagram of the integrated voltage regulating platform described in this invention. Figure 2 .

[0026] Icons: 1-Grouting area, 2-Pressure regulating area, 3-Central control area, 4-Maintenance and pipeline area, 101-Integrated grout mixing tank, 102-Sewage discharge funnel, 103-Support, 104-Agitator motor, 201-Integrated pressure regulating platform, 202-High pressure valve box, 203-Quick connector, 301-Grouting distribution cabinet, 302-Central control console. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1 like Figures 1-4 As shown in the figure, this embodiment proposes a multi-channel zoned collaborative grouting device for tunnel corridors, including a mobile trolley. The mobile trolley adopts a rectangular frame structure as a whole, and the bottom of the mobile trolley is equipped with a set of wheels to facilitate movement along the track or the ground in the tunnel corridor. The multi-channel zoned collaborative grouting device for tunnel corridors is suitable for narrow corridor environments.

[0029] The mobile trolley has four functional areas: grouting area 1, pressure regulating area 2, central control area 3, and maintenance and pipeline area 4.

[0030] Preferably, the grouting zone 1 and the pressure regulating zone 2 are respectively arranged on both sides of the length direction of the mobile trolley, and the two are arranged opposite to each other; The maintenance and pipeline area 4 is located in the middle of the mobile trolley and between the grouting area 1 and the pressure regulating area 2. The maintenance and pipeline area 4 serves as the core area for pipeline integration and equipment maintenance. The central control area 3 and the pressure regulating area 2 are arranged on the same side, and the central control area 3 is adjacent to the pressure regulating area 2 and the maintenance and pipeline area 4.

[0031] Preferably, the equipment in each functional area is placed in the same orientation and the pipelines are routed in a uniform manner, which facilitates operation, maintenance and quick identification.

[0032] Preferably, the overall dimensions of the mobile trolley are: length 4500mm, width 2000mm, and height determined according to equipment layout. The grouting area 1 occupies an area of ​​approximately 4.05 square meters, the pressure regulating area 2 occupies an area of ​​approximately 1.8 square meters, the central control area 3 occupies an area of ​​approximately 0.9 square meters, and the maintenance and pipeline area 4 occupies an area of ​​approximately 2.25 square meters. Through the above design, the total footprint is controlled within 11 square meters, which can be flexibly arranged in tunnel corridors with a width of 3 to 4 meters, achieving single-sided side-mounted arrangement (i.e., the mobile trolley is arranged against the tunnel side in the tunnel corridor), without affecting corridor passage.

[0033] Preferably, multiple integrated grout mixing tanks 101 are arranged sequentially along the length of the mobile trolley in the grouting area 1, and the multiple integrated grout mixing tanks 101 can realize multi-channel grouting; A bracket 103 is installed above the integrated slurry mixing tank 101 for arranging pipelines, cable trays, etc. The height of the bracket 103 is higher than the position of the injector of the integrated slurry mixing tank 101 to achieve gravity-flow slurry supply. Each of the integrated slurry mixing tanks 101 is connected to the main slurry supply pipe and the main water inlet pipe through branch pipes. The main slurry supply pipe and the main water inlet pipe supply slurry and water to the integrated slurry mixing tank 101 respectively. The branch pipes can be laid along the support 103. Each branch pipe is equipped with an electric ball valve to realize the independent opening and closing and flow regulation of each channel for slurry and water supply. The integrated slurry mixing tanks 101 can be supplied sequentially or simultaneously.

[0034] Preferably, the sewage discharge funnel 102 of each integrated slurry mixing tank 101 faces the outside of the mobile trolley, and each sewage discharge funnel 102 is connected to a sewage discharge branch pipe. The sewage discharge branch pipes converge and are connected to the main sewage discharge pipe. The main sewage discharge pipe is laid along the bottom of the mobile trolley, and the sewage is uniformly discharged to the on-site sewage system (such as a ditch or collection container).

[0035] Preferably, the integrated slurry mixing tank 101 is equipped with a stirring device for stirring the slurry evenly. The stirring device is a prior art device, for example, the stirring device includes a stirring paddle and a stirring motor 104. The integrated slurry mixing tank 101 is equipped with a liquid level sensor for monitoring the liquid level of the slurry in the integrated slurry mixing tank 101. Above the integrated slurry mixing tank 101, there are also stirring motor cables, liquid level sensor cables, etc. Each cable can be directly laid on the bracket 103. All cables are arranged in a centralized manner through cable trays to avoid cable clutter and ensure neat wiring.

[0036] Preferably, the stirring motor 104 corresponding to each integrated slurry mixing tank 101 faces the center of the mobile trolley for easy power connection and operation.

[0037] Preferably, five integrated grout mixing tanks 101 are arranged sequentially along the length of the mobile trolley in the grouting area 1. Each integrated grout mixing tank 101 has a capacity of 200L. The integrated grout mixing tank 101 is made of steel and has undergone surface treatment at the factory to meet the anti-corrosion requirements. The bracket 103 is welded from square steel pipes, and its height is 200mm higher than the position of the injector in the integrated slurry mixing tank 101. The diameter of the main sewage pipe is DN100.

[0038] Preferably, multiple integrated pressure regulating platforms 201 are arranged sequentially along the length of the mobile trolley within the pressure regulating zone 2. The integrated pressure regulating platform 201 is used to precisely control the grouting pressure. Each integrated pressure regulating platform 201 corresponds one-to-one with each integrated grout mixing tank 101 and is connected one-to-one through pipelines to form multiple independent and controllable grouting channels. A grouting pump is installed on the pipeline between the integrated pressure regulating platform 201 and the integrated grout mixing tank 101. The grouting pump is used to extract the grout from the integrated grout mixing tank 101. The integrated pressure regulating platform 201 is equipped with a slurry inlet pipe and a slurry return pipe at its bottom. Both the slurry inlet pipe and the slurry return pipe are connected to the integrated pressure regulating platform 201 using DN25 stainless steel quick connectors 203, so as to transport the slurry in the integrated slurry mixing tank 101 to the integrated pressure regulating platform 201, and then transport the slurry to the grouting hole through the integrated pressure regulating platform 201. The slurry in the grouting hole can be returned to the integrated pressure regulating platform 201 through the slurry return pipe. The wastewater discharge port of the integrated pressure regulating platform 201 is connected to the main sewage pipe to achieve centralized wastewater discharge; The integrated pressure regulating platform 201 has a built-in pressure regulating valve group, pressure sensor and pressure relief circuit. The pressure sensor is used to collect the slurry pressure signal in the pipeline in real time. The pressure regulating valve group is used to regulate the grouting pressure. The pressure relief circuit is used to realize overpressure protection. The pressure regulating valve group, the pressure sensor and the pressure relief circuit are all integrated and installed on the pipeline inside the integrated pressure regulating platform 201. The signal cables of the pressure regulating valve group, the pressure sensor and the pressure relief circuit are laid along the cable tray at the bottom of the mobile trolley. The high-pressure valve box 202 of the integrated pressure regulating platform 201 has its door facing the middle of the mobile trolley, i.e., towards the maintenance and pipeline area 4, which facilitates the operator to adjust and maintain the valves in the middle area.

[0039] Preferably, five integrated pressure regulating platforms 201 are arranged sequentially along the length of the mobile trolley within the pressure regulating zone 2.

[0040] Preferably, the central control area 3 is equipped with a grouting distribution cabinet 301 and a central control console 302. The grouting distribution cabinet 301 is connected to the main power supply line, which is used to supply power. Each electrical device is connected to the grouting distribution cabinet 301. The central control console 302 is used to centrally control and adjust the pressure, flow rate and various actuators of the grouting operation. The electric ball valve is connected to the central control panel 302. The central control panel 302 controls the opening and closing and the degree of opening of each electric ball valve, thereby adjusting the supply of grout and water used for grouting, so as to prepare grout with target density and flow rate. The stirring motor cable and the liquid level sensor cable are both connected to the central control panel 302. The central control panel 302 can control the start and stop of the stirring motor 104 in the integrated slurry mixing tank 101, and obtain the liquid level of the slurry in the integrated slurry mixing tank 101 in real time, thereby adjusting the electric ball valve accordingly. The main slurry supply pipe and the main water inlet pipe are equipped with a main control valve (pneumatic valve). The pneumatic valve is connected to the central control panel 302. The central control panel 302 controls the overall slurry and water inlet by controlling the opening and closing of the pneumatic valve. The pressure regulating valve group, the pressure sensor, and the pressure relief circuit are all connected to the central control console 302. The central control console 302 adjusts the opening of the pressure regulating valve group according to the grouting pressure signal collected in real time by the pressure sensor to realize automatic adjustment of the grouting pressure. When the collected grouting pressure exceeds the limit, the pressure relief circuit is controlled to release pressure to ensure the safety of the device against overpressure.

[0041] Preferably, the grouting distribution cabinet 301 is wall-mounted on the steel back plate on the side of the mobile trolley, and the cabinet has an IP54 protection rating to meet the requirements of use in the humid and dusty environment inside the tunnel. After the main power supply line is connected to the grouting distribution cabinet 301, it is distributed to each electrical device through internal circuit breakers and contactors. That is, the main power supply line is connected to the grouting distribution cabinet 301 for power supply, and the grouting distribution cabinet 301 is connected to each electrical device through circuit breakers and contactors. The central control console 302 is located on a tabletop below the grouting distribution cabinet 301, with a tabletop height of 750mm, facilitating operation from a seated position. The central control console 302 includes an all-in-one industrial computer, a printer, a PLC controller, and a communication module. The integrated grout mixing tank 101 is equipped with a control cabinet, which is integrated inside the grouting power distribution cabinet 301. The PLC controller is connected to the control cabinet of each integrated grout mixing tank 101, the pressure sensor of the integrated pressure regulating platform 201, the pressure regulating valve group and pressure relief circuit, the pneumatic valves on the main grout supply pipe and the main water inlet pipe via an RS485 bus. The control cabinet is connected to the liquid level sensor, density sensor, stirring motor 104 corresponding to the integrated slurry mixing tank 101, electric ball valve on the corresponding branch pipe, and drain valve of the integrated slurry mixing tank 101. The control cabinet can receive signals from sensors such as liquid level and density, and automatically control the precise feeding of slurry and water according to the preset formula. It will automatically stop after reaching the set value to ensure the accuracy of the ratio, realize data acquisition and command issuance, and execute the entire process of feeding, stirring, homogenizing, slurry storage, conveying and cleaning. The integrated industrial computer is connected to the PLC controller for real-time display, data storage and analysis. It also allows operators to input control parameters and issue operation commands to the PLC controller, enabling visual monitoring and centralized operation of the entire device. The PLC controller is electrically connected to the control cabinet to achieve overall control of each integrated slurry mixing tank 101.

[0042] Preferably, a detachable recording shed is built outside the central control area 3. The recording shed adopts a metal frame and transparent PC board structure, and is equipped with lighting on the top. It can accommodate 1 to 2 operators to complete system monitoring, parameter setting, data printing and construction recording inside the shed, so as to avoid interference from the on-site environment to the operation.

[0043] Preferably, the maintenance and piping area 4 is located in the middle of the mobile trolley, adjacent to the grouting area 1 and the pressure regulating area 2. The ground of the maintenance and piping area 4 is paved with anti-slip patterned steel plates, approximately 500mm wide, forming a maintenance passage to facilitate operators' access to the equipment on both sides for maintenance.

[0044] Preferably, the main water inlet pipe, the main slurry supply pipe, the main sewage discharge pipe, and the main power supply line are all centrally located on the bottom support of the maintenance and pipeline area 4, and each pipe is fixed with pipe clamps at uniform intervals. The main water inlet pipe and the main slurry supply pipe are equipped with main control valves for quickly cutting off the water and slurry sources on-site. The main sewage discharge pipe has a quick connector at its end for rapid connection to on-site sewage pipes.

[0045] Preferably, the maintenance and pipeline area 4 is also provided with a tool cabinet for storing commonly used maintenance tools, seals and spare parts, so as to facilitate quick on-site handling of equipment failures.

[0046] The multi-channel zoned collaborative grouting device for tunnel corridors of the present invention achieves a highly integrated design, with a small overall footprint and compact size. It can be arranged on one side of the tunnel corridor without occupying passage space, and completely solves the problem that traditional grouting equipment has a large footprint and is difficult to adapt to narrow corridor construction.

[0047] Meanwhile, the mobile trolley is divided into four functional areas: grouting area 1, pressure regulating area 2, central control area 3, and maintenance and pipeline area 4. The layout is symmetrical and orderly, with equipment in each functional area facing the same direction and pipelines running in a unified manner. The functional areas do not interfere with each other. A dedicated maintenance passage is also set up in the middle, with valves and central control console 302 facing the maintenance area, which greatly improves the convenience of operation, inspection and maintenance, and effectively solves the problems of loose layout of traditional equipment, mutual interference between functional areas and inconvenience of operation and maintenance.

[0048] The equipment's pipelines and sewage system are uniformly planned. The main grout supply pipe, main water inlet pipe, main sewage outlet pipe, and main power supply line are all centrally located on the bottom support of maintenance and pipeline area 4, and are neatly fixed with pipe clamps at uniform intervals. The sewage pipelines of the grouting tank and pressure regulating platform are uniformly connected to the main sewage outlet pipe and centrally connected to the on-site sewage system. The grout supply and sewage systems are planned separately, which avoids cross-contamination of grout and sewage from the structure and solves the problems of messy pipelines, lack of unified planning between sewage and grout supply systems, and easy cross-contamination caused by traditional equipment.

[0049] In addition, the device adopts a modular integrated design, with all slurry preparation, pressure regulation, control and pipeline systems integrated on the same mobile trolley. The trolley is equipped with a set of wheels at the bottom, which can be moved and transferred as a whole. There is no need to disassemble, rewire and debug on site. It can be put into use by quickly connecting external pipelines and power supply, which solves the problems of long installation cycle, need to rewire and debug after relocation and low deployment efficiency of traditional distributed equipment.

[0050] In terms of control, the device adopts a central control console 302PLC industrial computer for centralized control. Five grout mixing tanks and five pressure regulating platforms correspond one-to-one to form five independent grouting channels. The liquid level, pressure and flow rate of each channel can be monitored synchronously, and the actuators such as stirring, grouting, water intake and pressure regulation can be controlled in a unified manner. This enables simultaneous or sequential grouting of multiple channels, automatic pressure adjustment and overpressure protection, which solves the problems of traditional control systems being decentralized and difficult to achieve multi-channel collaborative operation and centralized monitoring.

[0051] Meanwhile, the detachable recording shed built outside the central control area 3 can shield the site from environmental interference, ensuring the stability of operation and data recording. The pipeline uses quick-connect couplings, which further improves the convenience of installation and maintenance. The overall structure and protection design are specifically optimized for the tunnel corridor environment, which completely solves the problem that the existing equipment lacks special optimization for the corridor environment and is difficult to adapt to the harsh working conditions of the tunnel.

[0052] The multi-channel zoned collaborative grouting device for tunnel corridors of the present invention achieves rapid deployment, efficient operation and convenient maintenance of grouting equipment in narrow corridor environments through functional zoning integration, unified pipeline planning and compact structural design, and has the capability of multi-channel collaborative operation.

[0053] Example 2 This embodiment proposes a multi-channel zoned collaborative grouting method for tunnel corridors, which is based on the multi-channel zoned collaborative grouting device for tunnel corridors described in Embodiment 1. The method includes the following steps: S1: Device deployment; Move the mobile trolley to the work position and adjust the horizontal outriggers of the mobile trolley to support it on the ground, thereby fixing and leveling the trolley. External water sources, slurry sources, power supply systems and sewage systems are respectively connected to the main water inlet pipe, main slurry supply pipe, main power supply line and main sewage pipe of the device. All interfaces adopt quick connection method, and the external pipeline connection can be completed within 10 minutes. S2: System startup; Turn on the main power supply of grouting distribution cabinet 301, start the all-in-one industrial computer of central control console 302, enter the grouting control system interface, and perform communication self-test of each channel. S3: Preparation for slurry supply; Open the pneumatic valves on the main grout supply pipe and the main water inlet pipe through the central control panel 302, control the control valves on each branch pipe through the central control panel 302, select single-channel or full-channel grout supply according to construction needs, and automatically mix grout in the integrated grout mixing tank 101 according to the set value. S4: Grouting operation; The operator sets the target grouting pressure, flow rate and other parameters for each channel through the central control console 302 in the central control area 3, and starts the grouting program. Start the mixing motor 104 of the grout mixing tank. The grout is transported to the integrated pressure regulating platform 201 through the pipeline. The integrated pressure regulating platform 201 automatically adjusts the valve opening according to the set pressure to achieve constant pressure grouting. The multi-channel zoned collaborative grouting device for tunnel corridors collects data such as pressure, flow rate, and density in real time, and generates grouting curves and reports; S5: Sewage discharge and cleaning; After grouting is completed, the drain valves of each integrated grout mixing tank 101 are opened through the central control panel 302. The remaining grout and cleaning wastewater are discharged into the main drain pipe through the drain branch pipe. The integrated pressure regulating platform 201 is cleaned at the same time, and the wastewater is also connected to the main drain pipe. S6: Transition; Disconnect the external pipelines, retract the outriggers, move the mobile trolley to the next work area, and repeat the above process.

[0054] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-channel zoned collaborative grouting device for tunnel corridors, characterized in that: It includes a mobile trolley, which has multiple functional areas, including a grouting area, a pressure regulating area, a central control area, and a maintenance and pipeline area; The grouting area is equipped with multiple grout mixing tanks to achieve multi-channel grouting; Multiple pressure regulating platforms are arranged in the pressure regulating zone to control the grouting pressure; Each pressure regulating platform corresponds to a grout mixing tank and is connected to it via pipelines to form multiple independent and controllable grouting channels; Each of the aforementioned slurry mixing tanks is connected to the main slurry supply pipe and the main water inlet pipe; The central control area is equipped with a grouting power distribution cabinet and a central control console. The grouting power distribution cabinet is connected to the main power supply line. The voltage regulating platform is connected to the central control console for signal control of the grouting process. The wastewater discharge outlets of all the aforementioned slurry mixing tanks and the pressure regulating platform are connected to the main sewage pipe; The main grout supply pipe, the main water inlet pipe, the main power supply line, and the main sewage pipe are centrally located in the maintenance and pipeline area.

2. The multi-channel zoned coordinated grouting device for tunnel corridors according to claim 1, characterized in that: Each of the slurry mixing tanks is connected to the main slurry supply pipe and the main water inlet pipe via branch pipes. Each branch pipe is equipped with a control valve, which is connected to the central control console for signal control of the slurry mixing process.

3. The multi-channel zoned coordinated grouting device for tunnel corridors according to claim 1, characterized in that: The grouting zone and the pressure regulating zone are respectively arranged on both sides of the length direction of the mobile trolley, and are arranged opposite to each other; The maintenance and pipeline area is located in the middle of the mobile trolley and between the grouting area and the pressure regulating area; The central control area and the pressure regulating area are located on the same side, and the central control area is adjacent to the pressure regulating area and the maintenance and pipeline area.

4. The multi-channel zoned coordinated grouting device for tunnel corridors according to claim 1, characterized in that: Multiple integrated grout mixing tanks are arranged sequentially along the length of the mobile trolley within the grouting area. Multiple integrated pressure regulating platforms are arranged sequentially along the length of the mobile trolley within the pressure regulating zone. A grouting pump is installed on the pipeline between the integrated pressure regulating platform and the integrated grout mixing tank. The grouting pump is used to extract the grout from the integrated grout mixing tank.

5. The multi-channel zoned coordinated grouting device for tunnel corridors according to claim 4, characterized in that: A support is installed above the integrated slurry mixing tank, and the branch pipe is laid on the support. The height of the support is higher than the position of the integrated slurry mixing tank injector, so as to realize gravity-flow slurry supply.

6. The multi-channel zoned coordinated grouting device for tunnel corridors according to claim 4, characterized in that: The integrated slurry mixing tank is equipped with a stirring device and a liquid level sensor. The stirring motor of the stirring device and the liquid level sensor are both connected to the central control panel.

7. The multi-channel zoned coordinated grouting device for tunnel corridors according to claim 4, characterized in that: The integrated pressure regulating platform has a built-in pressure regulating valve group, pressure sensor and pressure relief circuit; The pressure sensor is used to collect the grout pressure signal in the pipeline in real time, the pressure regulating valve group is used to regulate the grouting pressure, and the pressure relief circuit is used to realize overpressure protection. The pressure regulating valve group, the pressure sensor, and the pressure relief circuit are all integrated and installed on the pipeline inside the integrated pressure regulating platform; The pressure regulating valve assembly, the pressure sensor, and the pressure relief circuit are all connected to the central control panel.

8. The multi-channel zoned coordinated grouting device for tunnel corridors according to claim 7, characterized in that: The signal cables of the pressure regulating valve group, the pressure sensor and the pressure relief circuit are laid along the cable tray at the bottom of the mobile trolley. The main water inlet pipe, the main slurry supply pipe, the main sewage discharge pipe, and the main power supply line are all centrally located on the bottom support of the maintenance and pipeline area, and each pipeline is fixed with pipe clamps.

9. The multi-channel zoned coordinated grouting device for tunnel corridors according to claim 7, characterized in that: The central control console includes an all-in-one industrial computer and a PLC controller; The integrated slurry mixing tank is equipped with a control cabinet. The PLC controller is connected to the control cabinet of each integrated slurry mixing tank, the pressure sensor of the integrated pressure regulating platform, the pressure regulating valve group and the pressure relief circuit, the main slurry supply pipe and the main water inlet pipe, and the main control valve. The control cabinet is connected to the level sensor, density sensor, stirring motor corresponding to the integrated slurry mixing tank, electric ball valve on the corresponding branch pipe, and drain valve of the integrated slurry mixing tank. The all-in-one industrial computer is connected to the PLC controller.

10. A method for multi-channel zoned coordinated grouting in tunnel corridors, characterized in that: It is implemented based on the multi-channel zoned collaborative grouting device for tunnel corridors as described in any one of claims 1-9, and the method includes the following steps: S1: Device deployment; Move the mobile trolley to the work position, and fix and level the trolley; Connect the external water source, slurry source, power supply system and sewage system to the main water inlet pipe, main slurry supply pipe, main power supply line and main sewage pipe of the unit respectively; S2: System startup; Turn on the main power supply of the grouting distribution cabinet, start the all-in-one industrial computer of the central control console, enter the grouting control system interface, and perform self-test of communication for each channel. S3: Preparation for slurry supply; Open the main control valve on the main grout supply pipe and the main water inlet pipe through the central control console, control the control valve on each branch pipe through the central control console, select single channel or full channel grout supply according to construction needs, and automatically mix grout in the integrated grout mixing tank according to the set value. S4: Grouting operation; Operators set the target grouting pressure and flow rate parameters for each channel through the central control console in the central control area, and then start the grouting program. The mixing motor of the grout mixing tank is started, and the grout is transported to the integrated pressure regulating platform through pipeline. The integrated pressure regulating platform automatically adjusts the valve opening according to the set pressure to achieve constant pressure grouting. The multi-channel zoned collaborative grouting device in the tunnel corridor collects data in real time and generates grouting curves and reports. S5: Sewage discharge and cleaning; After grouting is completed, the drain valves of each integrated grout mixing tank are opened via the central control console. The remaining grout and cleaning wastewater are discharged into the main drain pipe through the drain branch pipes. The integrated pressure regulating platform is cleaned simultaneously, and the wastewater is also connected to the main drain pipe. S6: Transition; Disconnect the external pipelines, move the mobile trolley to the next work area, and repeat the above process.

Images