A dust suppression and reinforcement collaborative protection device for roadway and tunnel construction and a control method thereof

Abstract

This invention discloses a dust suppression and reinforcement collaborative protection device and control method for roadway and tunnel construction. The core of the device consists of an automated dust suppression and reinforcement vehicle, a dust suppression and reinforcement configuration supply unit, an operation execution unit, and an Internet of Things (IoT) control unit. The automated dust suppression and reinforcement vehicle integrates modules such as a top loading platform and an unmanned control room, with built-in pipelines and a power supply system to ensure overall operation. The dust suppression and reinforcement configuration supply unit uses a mixed bacterial solution of Bacillus pasteurellii, Bacillus mucilage, sodium alginate, sodium bicarbonate, and urea to formulate a sodium alginate-based biological dust suppressant. The operation unit includes components for fog screen dust suppression, ground operation, and wall reinforcement. The IoT unit can monitor parameters in real time and issue control commands. This invention integrates intelligent sensing, precise control, and efficient operation, achieving simultaneous and mutually compatible advancement of dust control and surrounding rock reinforcement, improving the construction environment, protecting the occupational health of workers, and enhancing the timeliness and effectiveness of surrounding rock stability control.

Description

Technical Field

[0001] This invention relates to the field of industrial energy-saving dust removal technology, and in particular to a dust suppression and reinforcement synergistic protection device and control method for roadway and tunnel construction. Background Technology

[0002] As a core component of mineral resource development, transportation infrastructure construction, and water conservancy projects, tunnel and roadway engineering plays a crucial supporting role in national energy security and the advancement of major projects. With the continuous increase in mining depth and the growing complexity of underground transportation networks, tunnel and roadway engineering is developing towards "deeper, longer, and larger cross-sections," leading to a significant increase in the pressure of safety risk prevention and control. Dust pollution control and surrounding rock stability control have become two major technical challenges restricting the safe and efficient progress of these projects.

[0003] In terms of dust pollution control, traditional spray dust suppression technology has low capture efficiency for fine dust particles with small diameters and consumes a lot of water resources. In rock tunnels with severe water seepage, it can also aggravate the problem of mudification of the floor and damage the construction environment. Ventilation dilution technology transfers dust from the working face to other areas through airflow, but it does not achieve complete dust removal and may instead expand the scope of pollution. At the same time, this technology has high energy consumption and significant long-term operating costs. Although some chemical dust suppressants have a certain dust suppression effect, their ingredients often contain substances that are not friendly to the ecological environment and are prone to leave residues in tunnels and alleys, causing secondary pollution.

[0004] While existing technologies such as rock bolt support and shotcrete are relatively mature in terms of surrounding rock stability control, they still have many shortcomings. Rock bolt support has a long operation cycle, high labor intensity, and insufficient anchoring force in weak and fractured rock masses, making it difficult to effectively control surrounding rock deformation. Shotcrete technology suffers from high rebound rate and serious material waste, and the cement dust generated during the spraying process further deteriorates the construction environment and exacerbates dust pollution. More importantly, traditional reinforcement measures usually lag behind tunneling operations, with a significant process interval between the two, making it impossible to achieve simultaneous excavation and support. During this interval, the surrounding rock may have already undergone initial deformation or even failure, significantly increasing the difficulty of subsequent reinforcement and greatly enhancing construction safety risks.

[0005] It is worth noting that dust control and surrounding rock reinforcement, two technical links that should be closely related, are treated separately in traditional construction processes, resulting in inefficient resource allocation and complicated construction procedures. For example, the moisture introduced by spraying or chemical dust suppressants during dust control can soften the surrounding rock, reduce its stability, and increase the difficulty of reinforcement. Meanwhile, the vibration generated by the surrounding rock reinforcement operation can agitate the settled dust, causing the dust concentration to rebound, forming a vicious cycle of "control-interference".

[0006] Therefore, in response to the technical challenges of dust control and surrounding rock reinforcement in current roadway and tunnel construction, there is an urgent need for a dust suppression and reinforcement collaborative protection equipment that integrates intelligent sensing, precise control, and efficient operation. This equipment would enable the simultaneous advancement and mutual adaptation of dust control and surrounding rock reinforcement, thereby improving the construction environment, protecting the occupational health of workers, and enhancing the timeliness and effectiveness of surrounding rock stability control. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention provides a dust suppression and reinforcement collaborative protection device and control method for roadway and tunnel construction. It integrates intelligent sensing, precise control, and efficient operation, enabling simultaneous advancement and mutual adaptation of dust control and surrounding rock reinforcement, improving the construction environment, protecting the occupational health of workers, and enhancing the timeliness and effectiveness of surrounding rock stability control.

[0008] The technical solution adopted by the present invention to solve its technical problem is: a dust suppression and reinforcement collaborative protection device for roadway and tunnel construction, including an automated dust suppression and reinforcement vehicle, a dust suppression and reinforcement configuration supply unit, an operation execution unit and an Internet of Things control unit;

[0009] The automated dust suppression and reinforcement vehicle includes a main body and a top loading platform, an unmanned control room and an airborne platform mounted on the main body. The main body has a built-in body piping system and an electrical power supply system. The body piping system is used to connect various fluid supply operation units, and the electrical power supply system provides a stable power supply for various electrical components.

[0010] The dust suppression and reinforcement configuration supply unit includes a microbial fermentation device, a mineralizing agent storage tank, a binder storage tank, a urea storage tank, and a biological dust suppressant preparation device. The microbial fermentation device, mineralizing agent storage tank, binder storage tank, urea storage tank, and biological dust suppressant preparation device are all installed on an airborne platform.

[0011] The microbial fermentation device includes several microbial fermentation tanks for cultivating a mixed bacterial solution of *Bacillus pasteurellii* and *Bacillus mucilaginosus*. Each microbial fermentation tank is connected to a biological dust suppressant preparation device via a bacterial solution delivery pipe, supplying the mixed bacterial solution to the biological dust suppressant preparation device. A binder storage tank contains sodium alginate solution and is connected to the biological dust suppressant preparation device via a binder delivery pipe, supplying the sodium alginate solution to the biological dust suppressant preparation device. A urea storage tank contains urea mother liquor and is connected to the biological dust suppressant preparation device via a urea delivery pipe.

[0012] The biological dust suppressant preparation device is used to prepare sodium alginate-based biological dust suppressant. The biological dust suppressant preparation device includes a shell, a partition, a pre-carbonation stirrer, and an aeration pipe. The partition is vertically arranged inside the shell, dividing the internal space into an inner chamber and an outer chamber. The bacterial liquid delivery pipe, the binder delivery pipe, and the urea delivery pipe are all connected to the inner chamber. A normal delivery pipe is opened at the top of the partition, and an emergency delivery pipe is opened at the bottom. Solenoid valves are installed on both the normal delivery pipe and the emergency delivery pipe. The inner chamber and the outer chamber can be connected through the normal delivery pipe or the emergency delivery pipe.

[0013] The precarbonation agitator and aeration pipe are installed at the bottom of the inner chamber. The precarbonation agitator has an internal passage and is connected to several sodium bicarbonate nozzles. The precarbonation agitator and aeration pipe are connected to an external sodium bicarbonate storage tank and an oxygen supply tank through pipelines.

[0014] The outer chamber of the microbial fermentation device is connected to a dust suppressant delivery pipe. The end of the dust suppressant delivery pipe away from the microbial fermentation device is connected to the operation execution unit through the machine body piping system. The mineralizing agent storage tank stores calcium chloride mineralization liquid and is connected to a mineralizing agent delivery pipe. The end of the mineralizing agent delivery pipe away from the mineralizing agent storage tank is connected to the operation execution unit through the machine body piping system.

[0015] The operation execution unit includes a fog curtain dust suppression component, a ground operation component, and a wall reinforcement component. The fog curtain dust suppression component is used for the settling of dust in the air, the ground operation component is used for fixing and reinforcing dust on the ground, and the wall reinforcement component is used for reinforcing dangerous points on the walls of tunnels / alleys.

[0016] The IoT control unit is integrated on the outer surface of the biological dust suppressant preparation device and is electrically connected to the dust suppression and reinforcement preparation supply unit and the operation execution unit to realize parameter acquisition, command transmission and operation status monitoring.

[0017] Furthermore, the biological dust suppressant preparation device also includes a parameter detection component, which includes a pH sensor, an oxygen sensor, an optical density sensor, a liquid level sensor I, and a liquid level sensor II.

[0018] The pH sensor and oxygen sensor are installed in the inner cavity of the housing; the optical density sensor is fixed to the center of the partition, and the detection end extends through the partition to the middle of the inner cavity; the liquid level sensor I is located on the upper part of the side wall of the outer cavity of the housing, and the liquid level sensor II is located on the lower part of the side wall of the outer cavity of the housing.

[0019] Furthermore, the outlet of the bacterial liquid delivery pipe is closer to the bottom of the inner chamber than the outlet of the binder delivery pipe; the pH sensor is closer to the bottom of the inner chamber than the oxygen sensor; several aeration pipes are provided and are evenly and horizontally arranged at the bottom of the inner chamber of the shell, and the height of the air outlet of the aeration pipe is lower than the height of the liquid outlet of the pre-carbonation agitator.

[0020] Furthermore, the fog curtain dust suppression component includes fog curtain nozzle I and fog curtain nozzle II, which are installed on one side of the top loading platform. The end of the dust suppressant delivery pipe away from the biological dust suppressant preparation device is connected to fog curtain nozzle I and fog curtain nozzle II through the machine body piping system.

[0021] Furthermore, the wall reinforcement component includes a universal reinforcement arm I and a universal reinforcement arm II, both of which are five-degree-of-freedom or six-degree-of-freedom robotic arms, and are equipped with a 360° rotatable atomizing nozzle at their ends. The atomizing nozzle is connected to the body piping system built into the vehicle body via a rotary joint. The end of the dust suppressant delivery pipe away from the biological dust suppressant configuration device is connected to the universal reinforcement arm I via the body piping system. The end of the mineralizer delivery pipe away from the mineralizer storage tank is connected to the universal reinforcement arm II via the body piping system. The universal reinforcement arms I and II are positioned and sprayed under the control of the Internet of Things control unit according to the reinforcement points marked on the ground terminal.

[0022] Furthermore, the ground operation components include a dust suppressant roller spraying device, a scraper roller leveling device, and a mineralizer coating device, which are arranged sequentially along the vehicle body's travel direction.

[0023] The dust suppressant roller spraying device is located on the lower front side of the vehicle body and includes a connecting frame I, a support shaft I, and high-pressure atomizing nozzles. The support shaft I has a hollow structure and is connected to the dust suppressant delivery pipe of the biological dust suppressant preparation device through the body piping system. Several of the high-pressure atomizing nozzles are arranged on the surface of the support shaft I and are connected to the inner cavity of the support shaft I. The support shaft I is connected and fixed to the vehicle body through the connecting frame I.

[0024] The mineralizing agent coating device is located on the lower rear side of the vehicle body, including a connecting frame II, a support shaft II and a coating port. The support shaft II is a hollow structure and is connected to the mineralizing agent delivery pipe through the fuselage piping system. The coating port extends axially along the support shaft II. The support shaft II is connected and fixed to the bottom surface of the vehicle body through the connecting frame II.

[0025] The leveling device is located behind the dust suppressant spraying device and includes a connecting frame III, a support shaft III, a flattening roller brush, and a flat scraper. The connecting frame III is fixed to the bottom surface of the vehicle body, the support shaft III is rotatably connected to the connecting frame III, the flattening roller brush is coaxially fixed to the outside of the support shaft III, and the flat scraper is located on the side of the flattening roller brush close to the dust suppressant spraying device, with the bottom surface of the flat scraper in contact with the ground.

[0026] Furthermore, the top of the top loading platform is equipped with an IoT infrared recognition sensor and an IoT panoramic imager. A dust concentration sensor is installed on the front side of the top loading platform, a hazard warning light is installed on the bottom front side, and a lighting assembly is installed in front of the vehicle body.

[0027] Furthermore, the sodium alginate-based biological dust suppressant is composed of a mixed bacterial solution, sodium alginate, and sodium bicarbonate; the Bacillus mucilaginosus and Bacillus pasteurellus in the mixed bacterial solution are cultured in a microbial fermentation device at pH 7.0, temperature 30℃, and rotation speed 190 r / min for 24 h, and then mixed and transported to the biological dust suppressant preparation device through a bacterial solution delivery pipe;

[0028] When compounding the sodium alginate-based biological dust suppressant, the fermentation broth of Bacillus pasteurellii and the fermentation broth of Bacillus mucilaginosus are first thoroughly mixed at a volume ratio of 1:1. Then, sodium alginate, urea, and sodium bicarbonate are added to the mixed bacterial solution in the inner chamber and the volume is adjusted. The final sodium alginate-based biological dust suppressant system has the following concentrations: sodium alginate 0.5% w / v, sodium bicarbonate 0.2 mol / L, and urea 20 g / L.

[0029] This invention also provides a method for coordinated control of dust suppression and reinforcement in roadway and tunnel construction, based on the aforementioned coordinated protection device for dust suppression and reinforcement in roadway and tunnel construction; the automatic preparation process of the sodium alginate-based biological dust suppressant in the control method includes the following steps:

[0030] S1: Start the microbial fermentation device and culture Bacillus pasteurellii and Bacillus mucilaginosus for 24 hours at pH 7.0, temperature 30℃ and rotation speed 190r / min. After the culture is completed, open the valve on the bacterial solution delivery pipe and deliver the mixed bacterial solution to the inner chamber of the biological dust suppressant preparation device.

[0031] S2: When the bacterial solution enters the inner chamber of the biological dust suppressant preparation device, open the valves on the binder delivery pipe and the urea delivery pipe to deliver the sodium alginate solution and urea mother liquor into the inner chamber. At the same time, start the pre-carbonation stirrer and set the stirring speed to 150-200 r / min. At this time, the sodium bicarbonate nozzle and the aeration pipe are in the closed state.

[0032] S3: The pH value of the mixture in the inner chamber is monitored in real time by a pH sensor. When pH < 7, the sodium bicarbonate nozzle is activated to spray sodium bicarbonate solution into the mixture; when pH > 9, the sodium bicarbonate nozzle is turned off. The dissolved oxygen concentration in the mixture is monitored in real time by an oxygen sensor. When the dissolved oxygen concentration < 5 mg / L, the aeration pipe is activated to introduce oxygen into the mixture until the dissolved oxygen concentration ≥ 5 mg / L, and then the aeration pipe is turned off.

[0033] S4: Real-time monitoring of the OD of the mixture using an optical density sensor. 600 Value, when OD 600 When OD < 0.5, increase the valve opening of the bacterial solution delivery pipe to increase the input of mixed bacterial solution; when OD 600 When the OD is >1.5, increase the valve opening of the adhesive delivery pipe and increase the input of sodium alginate solution; until OD 600 Once the concentration is stabilized between 0.8 and 1.2, the delivery of the mixed bacterial solution and binder should be stopped.

[0034] S5: Continue stirring for 10-15 minutes to fully mix the liquid and form sodium alginate-based biological dust suppressant; under normal operating conditions, the normal delivery pipe is normally open and the emergency delivery pipe is normally closed. When the liquid level of sodium alginate-based biological dust suppressant in the inner chamber is higher than that in the normal delivery pipe, the sodium alginate-based biological dust suppressant flows by gravity to the outer chamber for storage through the normal delivery pipe.

[0035] S6: Monitor the liquid level of sodium alginate-based biological dust suppressant in the outer chamber using liquid level sensors I and II: If the liquid level of sodium alginate-based biological dust suppressant is lower than the detection height of liquid level sensor II, the IoT control unit outputs a signal indicating that normal operation is not possible; if the liquid level of sodium alginate-based biological dust suppressant is higher than the detection height of liquid level sensor II but lower than the detection height of liquid level sensor I, the IoT control unit outputs a low-power operation signal; if the liquid level of sodium alginate-based biological dust suppressant is higher than the detection height of liquid level sensor I, the IoT control unit outputs a normal operation signal.

[0036] Furthermore, the dust suppression and reinforcement collaborative operation process in the control method includes the following steps:

[0037] T1: Start the automated dust suppression and reinforcement vehicle, and at the same time turn on the IoT infrared recognition sensor and IoT panoramic imager. The two transmit the images of the walls and bottom of the alley / tunnel and the temperature distribution information to the ground IoT terminal. The ground terminal analyzes the data through artificial intelligence technology, marks the dangerous points that need to be reinforced, and feeds back the marking results to the IoT control unit.

[0038] T2: The IoT control unit, based on the marked hazardous points requiring reinforcement, controls the universal reinforcement arms I and II to adjust their posture, aligning the atomizing nozzles with the hazardous points to be reinforced; it then activates the spray valve of universal reinforcement arm I to spray sodium alginate-based biological dust suppressant onto the hazardous points. The dust suppressant forms a sodium alginate hydrogel on the surface of the point, fixing Bacillus pasteurellii and Bacillus mucilaginosus at the point; after spraying for 5-10 seconds, universal reinforcement arm I is closed, and universal reinforcement arm II is activated to spray calcium chloride mineralizing agent onto the same point at a rate of 0.5-1 L / m². 2 Close the universal reinforcement arm II; the two combine to form calcium carbonate crystals, achieving in-situ mineralization reinforcement of the hazardous location.

[0039] T3: The dust concentration in the alley / tunnel is monitored in real time by a dust concentration sensor. When the dust concentration exceeds the set concentration, the Internet of Things control unit activates the flashing hazard warning light and opens the valves of fog spray nozzle I and fog spray nozzle II to spray sodium alginate-based biological dust suppressant into the alley / tunnel for dust reduction.

[0040] T4: During its journey, the automated dust suppression and reinforcement vehicle activates the dust suppressant roller spraying device to spray sodium alginate-based biological dust suppressant onto the ground; the flat scraper removes excess dust as the vehicle moves, and the flattening roller brush compacts the ground simultaneously; when the vehicle reaches the area where the biological dust suppressant has been sprayed, the mineralizer coating device is activated to spray calcium chloride mineralizer onto the ground, achieving dust suppression and reinforcement of the ground.

[0041] The beneficial effects of this invention are:

[0042] This invention achieves the coordinated advancement and mutual adaptation of dust control and surrounding rock reinforcement processes in tunnel / street construction, effectively avoiding the vicious cycle of "control-interference" in traditional processes, where dust control involves water replenishment to soften the surrounding rock, while reinforcement work vibrations generate dust. It optimizes resource allocation and process coordination in the construction phase. Regarding dust suppression, the sodium alginate-based biological dust suppressant utilizes the microbial action of Bacillus pasteurellii and Bacillus mucilaginosus to efficiently settle fine dust particles that are difficult to capture with traditional spraying techniques. Compared to traditional chemical dust suppressants, this biological dust suppressant is more environmentally friendly, does not leave residues in the construction area causing secondary pollution, and avoids the drawbacks of traditional spray dust suppression, such as high water consumption and a tendency to exacerbate mud formation on the tunnel floor. Furthermore, it enhances subsequent mineralization effects through microbial reactions such as urea decomposition.

[0043] In terms of surrounding rock reinforcement, the device can collect environmental information through IoT infrared recognition sensors and panoramic imagers, and combine it with artificial intelligence analysis of ground terminals to accurately mark dangerous points. Then, it relies on the universal reinforcement arm to complete precise positioning and spraying. First, a biological dust suppressant is sprayed to form a hydrogel to fix microorganisms, and then a calcium chloride mineralizer is applied to trigger in-situ mineralization to generate calcium carbonate crystals. This achieves synchronous reinforcement as excavation and support are carried out, which solves the problems of long support cycle, insufficient anchoring force in weak rock masses, high rebound rate of shotcrete, and environmental degradation caused by cement dust. It significantly improves the timeliness and reliability of surrounding rock stability control and reduces construction safety risks.

[0044] In addition, the automated dust suppression and reinforcement vehicle integrates multiple operation units such as fog screen dust suppression, ground roller spraying and coating, and precise wall reinforcement. It can simultaneously complete multiple tasks such as air dust reduction, ground dust fixing and compaction, and mineralization reinforcement of dangerous points on the wall, which greatly simplifies the construction process, reduces the intensity of manual labor, and improves the overall operation efficiency. Moreover, the device can realize intelligent switching of operation modes through components such as liquid level sensors, ensuring the continuity and stability of equipment operation and providing technical support for the safe and efficient advancement of tunnel / street engineering. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0046] Figure 2 This is a schematic diagram of the overall structure of the fully automatic biological dust suppressant preparation device in this invention;

[0047] Figure 3 This is a schematic cross-sectional view of the fully automatic biological dust suppressant preparation device AA in this invention;

[0048] Figure 4 This is a schematic diagram of the overall structure of the dust suppressant roller spraying device in this invention;

[0049] Figure 5 This is a schematic diagram of the overall structure of the mineralizer coating device in this invention;

[0050] Figure 6 This is a schematic diagram of the overall structure of the scraping and leveling device in this invention.

[0051] In the diagram: 1. Automated dust suppression and reinforcement vehicle; 101. Top loading platform; 102. Unmanned control room; 103. Onboard platform; 104. Vehicle body; 2. Dust concentration sensor; 3. Hazard warning light; 4. Lighting assembly; 5. Microbial fermentation device; 6. Binder storage tank; 7. Mineralizer storage tank; 8. Biological dust suppressant preparation device; 80. Urea storage tank; 801. Urea delivery pipe; 81. Internet of Things control unit; 82. Binder delivery pipe; 83. Bacterial liquid delivery pipe; 84. Dust suppressant delivery pipe; 85. Aeration pipe; 86. Pre-carbonation agitator; 87. pH sensor; 88. Oxygen sensor; 89. Optical density sensor; 8101. Liquid level sensor I; 8102. Liquid level sensor II; 8111, Normal delivery pipe; 8112, Emergency delivery pipe; 812, Partition; 813, Inner chamber; 814, Outer chamber; 861, Sodium bicarbonate nozzle; 9, Dust suppressant roller spraying device; 91, Connecting frame I; 92, Support shaft I; 93, High-pressure atomizing nozzle; 10, Mineralizer coating device; 1001, Connecting frame II; 1002, Support shaft II; 1003, Coating port; 11, Scraper roller leveling device; 111, Connecting frame III; 112, Support shaft III; 113, Flattening roller brush; 114, Flat scraper; 12, Universal reinforcing arm I; 13, Universal reinforcing arm II; 14, Internet of Things infrared recognition sensor; 15, Internet of Things panoramic imager; 16, Fog curtain nozzle I; 17, Fog curtain nozzle II. Detailed Implementation

[0052] The present invention will be further described in detail below with reference to the accompanying drawings.

[0053] This invention discloses a dust suppression and reinforcement synergistic protection device for roadway and tunnel construction.

[0054] Reference Figure 1 A dust suppression and reinforcement collaborative protection device for roadway and tunnel construction includes an automated dust suppression and reinforcement vehicle 1, a dust suppression and reinforcement configuration supply unit, an operation execution unit, and an Internet of Things control unit 81; each unit and device forms a closed-loop operation system through mechanical assembly, pipeline connection, and circuit integration, realizing the integrated functions of raw material preparation, precise operation, and status monitoring.

[0055] Among them, the automated dust suppression and reinforcement vehicle 1 is the main carrier and walking platform of the device, including the main body 104 and the top loading platform 101, unmanned control room 102 and airborne platform 103 mounted on the main body 104. The main body 104 has a built-in body piping system and circuit power supply system. The body piping system is used to connect various fluid supply operation execution units, and the circuit power supply system provides a stable power supply for various electrical components.

[0056] Reference Figures 1 to 3The dust suppression and reinforcement configuration supply unit is the core raw material preparation and supply module of the device, including a microbial fermentation device 5, a mineralizing agent storage tank 7, a binder storage tank 6, a urea storage tank 80, and a biological dust suppressant preparation device 8. The microbial fermentation device 5, the mineralizing agent storage tank 7, the binder storage tank 6, the urea storage tank 80, and the biological dust suppressant preparation device 8 are installed on the vehicle platform.

[0057] The microbial fermentation device 5 includes several microbial fermentation tanks. In this embodiment, four microbial fermentation tanks are configured. Each microbial fermentation tank is connected in series through a stainless steel connecting pipe and a one-way valve is installed on the pipe to prevent the bacterial liquid from flowing back. Its main function is to cultivate a mixed bacterial liquid of Bacillus pasteurellii and Bacillus mucilaginosus. During the cultivation process, the temperature is controlled by the tank wall heating constant temperature module and the speed is controlled by the tank stirring module, so as to create a suitable living environment for the microbial community.

[0058] The microbial fermenter is connected to the biological dust suppressant preparation device 8 via a bacterial liquid delivery pipe 83. The bacterial liquid delivery pipe 83 is equipped with an electromagnetic valve and a flow pump, which can quantitatively supply mixed bacterial liquid to the biological dust suppressant preparation device 8.

[0059] The binder storage tank 6 contains a sodium alginate solution with a concentration of 0.5%. The binder storage tank 6 is connected to the biological dust suppressant preparation device 8 through the binder delivery pipe 82. The binder delivery pipe 82 is equipped with an electromagnetic valve and a flow pump, which can quantitatively supply the biological dust suppressant preparation device 8 with an adhesive sodium alginate binder, providing a basis for the formation of the dust suppressant and the fixation of microorganisms.

[0060] The mineralizing agent storage tank 7 stores calcium chloride mineralizing solution with a concentration of 1 mol / L. The mineralizing agent storage tank 7 is connected to a mineralizing agent delivery pipe. The end of the mineralizing agent delivery pipe away from the mineralizing agent storage tank 7 is connected to the work execution unit through the machine body piping system. The mineralizing agent delivery pipe is equipped with a booster pump and a flow regulating valve, which can accurately deliver the mineralizing solution to the work execution unit through the machine body piping system.

[0061] Urea storage tank 80 stores urea mother liquor with a concentration of 200g / L. Urea storage tank 80 is connected to biological dust suppressant preparation device 8 through urea delivery pipe 801. Urea delivery pipe 801 is equipped with electromagnetic valve and flow pump, which can quantitatively supply urea mother liquor to biological dust suppressant preparation device 8 to provide nitrogen source for bacteria.

[0062] The biological dust suppressant preparation device 8 is used to prepare sodium alginate-based biological dust suppressant. The biological dust suppressant preparation device 8 includes a shell, a partition 812, a pre-carbonation stirrer 86, and an aeration pipe 85. The partition 812 is vertically arranged inside the shell, dividing the internal space into an inner chamber 813 and an outer chamber 814. The bacterial solution delivery pipe 83, the binder delivery pipe 82, and the urea delivery pipe 801 are all connected to the inner chamber 813. Moreover, the outlet of the bacterial solution delivery pipe 83 is closer to the bottom of the inner chamber 813 than the outlet of the binder delivery pipe 82, which can ensure that the bacterial solution and the binder are fully mixed.

[0063] A normal delivery pipe 8111 is opened at the top of the partition 812, and an emergency delivery pipe 8112 is opened at the bottom. Solenoid valves are installed on both the normal delivery pipe 8111 and the emergency delivery pipe 8112. The inner chamber 813 and the outer chamber 814 can be connected through the normal delivery pipe 8111 or the emergency delivery pipe 8112. Under normal working conditions, the inner chamber 813 and the outer chamber 814 are connected through the normal delivery pipe 8111. Under emergency working conditions, the biological dust suppressant can be rapidly transferred through the emergency delivery pipe 8112.

[0064] The precarbonation stirrer 86 and the aeration pipe 85 are installed at the bottom of the inner chamber 813. The precarbonation stirrer 86 has an internal passage and is connected to several sodium bicarbonate nozzles 861. The precarbonation stirrer 86 is connected to an external sodium bicarbonate storage tank through a pipeline. The pipeline is equipped with a delivery pump and a control valve, which can spray sodium bicarbonate solution onto the mixture to achieve precarbonation treatment and reserve carbonate ions for subsequent mineralization reactions.

[0065] There are 6 aeration pipes 85, which are evenly and horizontally arranged at the bottom of the inner cavity 813 of the shell. The height of the air outlet of the aeration pipe 85 is lower than the height of the liquid outlet of the pre-carbonation agitator 86. The aeration pipe 85 is connected to an external oxygen supply tank through a pipeline. The pipeline is equipped with a delivery pump and a control valve to supplement oxygen to the mixture and ensure the activity of aerobic bacteria.

[0066] The outer chamber 814 of the microbial fermentation device 5 is connected to a dust suppressant delivery pipe 84. The end of the dust suppressant delivery pipe 84 away from the microbial fermentation device 5 is connected to the operation execution unit through the machine body pipeline system; the prepared biological dust suppressant can be delivered to the operation end; the end of the mineralizer delivery pipe away from the mineralizer storage tank 7 is also connected to the operation execution unit through the machine body pipeline system to realize the synchronous supply of mineralizing liquid.

[0067] To ensure the accuracy and stability of dust suppressant preparation, the biological dust suppressant preparation device 8 also includes a parameter detection component, which includes a pH sensor 87, an oxygen sensor 88, an optical density sensor 89, a liquid level sensor I 8101, and a liquid level sensor II 8102. The pH sensor 87 and the oxygen sensor 88 are installed in the inner chamber 813 of the housing, with the pH sensor 87 closer to the bottom of the inner chamber 813 than the oxygen sensor 88. These sensors can monitor the pH and dissolved oxygen concentration of the mixture, providing suitable conditions for bacterial survival. The optical density sensor 89 is fixed to the center of the partition 812, with its detection end extending through the partition 812 to the middle of the inner chamber 813. It can monitor the OD of the mixture. 600 The value determines the bacterial concentration to ensure dust suppression and mineralization effects; liquid level sensor I 8101 is located on the upper side wall of the outer chamber 814 of the shell, and liquid level sensor II 8102 is located on the lower side wall of the outer chamber 814 of the shell. Both are ultrasonic liquid level sensors, which can monitor the operating mode of the dust suppressant liquid level control device.

[0068] The operation execution unit includes a fog curtain dust suppression component, a ground operation component, and a wall reinforcement component. The fog curtain dust suppression component is used for the rapid settling of suspended dust in the air, the ground operation component is used for fixing and leveling dust on the ground, and the wall reinforcement component is used for precise mineralization reinforcement of dangerous points on the walls of tunnels / streets.

[0069] The fog curtain dust suppression assembly includes fog curtain nozzle I 16 and fog curtain nozzle II 17. Fog curtain nozzle I 16 and fog curtain nozzle II 17 are installed on one side of the top of the top loading platform 101. The end of the dust suppressant delivery pipe 84 away from the biological dust suppressant preparation device 8 is connected to fog curtain nozzle I 16 and fog curtain nozzle II 17 through the body piping system.

[0070] The wall reinforcement assembly includes a universal reinforcement arm I 12 and a universal reinforcement arm II 13, both of which are five- or six-degree-of-freedom robotic arms, fixed to the other side of the top loading platform 101 via a rotating base; the ends of both universal reinforcement arms I 12 and II 13 are equipped with a 360° rotatable atomizing nozzle, and the atomizing nozzle is connected to the body piping system built into the vehicle body 104 via a rotary joint; the dust suppressant delivery pipe 84 is located away from... One end of the biological dust suppressant preparation device 8 is connected to the atomizing nozzle of the universal reinforcement arm I 12 through the body piping system; the end of the mineralizer delivery pipe away from the mineralizer storage tank 7 is connected to the atomizing nozzle of the universal reinforcement arm II 13 through the body piping system. The universal reinforcement arm I 12 and the universal reinforcement arm II 13 can complete the attitude adjustment and precise spraying under the control of the Internet of Things control unit 81 according to the dangerous points that need to be reinforced marked by the ground terminal, and achieve the reinforcement of dangerous points through microbial mineralization.

[0071] The ground operation components include a dust suppressant roller spraying device 9, a scraper roller leveling device 11, and a mineralizer coating device 10, which are arranged sequentially along the travel direction of the vehicle body 104.

[0072] Reference Figure 4 The dust suppressant spraying device 9 is located on the lower front side of the vehicle body 104, including a connecting frame I 91, a support shaft I 92, and high-pressure atomizing nozzles 93. The support shaft I 92 is a hollow structure and is connected to the dust suppressant delivery pipe 84 of the biological dust suppressant preparation device 8 through the body piping system. Several high-pressure atomizing nozzles 93 are fixedly arranged on the surface of the support shaft and are connected to the inner cavity of the support shaft I 92. The support shaft I 92 is connected and fixed to the vehicle body 104 through the connecting frame I 91. The device can evenly spray sodium alginate-based biological dust suppressant onto the ground during the device's movement to achieve adhesion and fixation of dust on the ground.

[0073] Reference Figure 5 The mineralizing agent coating device 10 is located on the lower rear side of the vehicle body 104, including a connecting frame II 1001, a support shaft II 1002, and a coating port 1003. The support shaft II 1002 is a hollow structure and is connected to the mineralizing agent delivery pipe through the fuselage piping system. The coating port 1003 extends axially along the support shaft II 1002. The support shaft II 1002 is connected and fixed to the bottom surface of the vehicle body 104 through the connecting frame II 1001. The mineralizing agent coating device 10 can spray calcium chloride mineralizing liquid onto the ground that has been covered with biological dust suppressant to achieve in-situ mineralization and reinforcement of the ground.

[0074] Reference Figure 6 The scraping and leveling device 11 is located behind the dust suppressant spraying device 9. It includes a connecting frame Ⅲ111, a support shaft Ⅲ112, a flattening roller brush 113, and a flat scraper 114. The connecting frame Ⅲ111 is fixed to the bottom surface of the vehicle body. The support shaft Ⅲ112 is rotatably connected to the connecting frame Ⅲ111. The flattening roller brush 113 is coaxially fixed to the outside of the support shaft Ⅲ112. The flat scraper 114 is located on the side of the flattening roller brush 113 closest to the dust suppressant spraying device 9. The bottom surface of the flat scraper 114 is in contact with the ground. It can scrape off excess dust from the ground first when the device is moving, and then flatten and level it by the flattening roller brush 113, ensuring the flatness of the ground and enhancing the adhesion between the biological dust suppressant and the ground. It should be noted that the corresponding connecting pipes of the dust suppressant spraying device 9 and the mineralizer coating device 10 are equipped with delivery pumps and control valves to control the delivery and opening / closing of the required fluids.

[0075] In addition, the top of the top loading platform 101 is equipped with an IoT infrared recognition sensor 14 and an IoT panoramic imager 15. The IoT infrared recognition sensor 14 can identify local high temperature anomalies on the wall, and the IoT panoramic imager 15 has a field of view of 120-180° and can collect images of the tunnel / alley wall and floor in real time. A dust concentration sensor 2 is installed on the front of the top loading platform 101 to collect the dust concentration in the working environment. A hazard warning light 3 is installed on the bottom of the front side, and a lighting group 4 is installed in front of the main body 104 to ensure visibility and safety warning in complex environments. The IoT control unit 81 is integrated on the outer surface of the biological dust suppressant preparation device 8. Its internal components include a PLC controller, a data acquisition module, an instruction output module, and a human-machine interface. It is electrically connected to the dust suppression and reinforcement configuration supply unit, the operation execution unit, and various sensors, enabling real-time parameter acquisition, accurate transmission of operation instructions, and full monitoring of equipment operation status.

[0076] The sodium alginate-based biological dust suppressant used in this device is a compound of mixed bacterial solution, sodium alginate, and sodium bicarbonate. The mixed bacterial solution contains Bacillus mucilaginosus and Bacillus pasteurellus, which are cultured in the microbial fermentation device 5 at pH 7.0, temperature 30℃, and rotation speed 190 r / min for 24 h. The mixture is then transported to the biological dust suppressant preparation device 8 through the bacterial solution delivery pipe 83 at a volume ratio of 1:1. During compounding, the two bacterial solutions are first thoroughly mixed, and then sodium alginate, sodium bicarbonate, and urea are added to the mixed bacterial solution in the inner chamber 813 and the volume is adjusted. The final dust suppressant system has the following concentrations: sodium alginate 0.5% w / v, sodium bicarbonate 0.2 mol / L, and urea 20 g / L. Urea can serve as a nitrogen source for Bacillus pasteurellus, and the carbonate ions produced by its decomposition can further enhance the mineralization performance of the dust suppressant.

[0077] This invention also discloses a method for coordinated control of dust suppression and reinforcement in roadway and tunnel construction, based on the aforementioned coordinated dust suppression and reinforcement protection device for roadway and tunnel construction; the automatic preparation process of sodium alginate-based biological dust suppressant in the control method includes the following steps:

[0078] S1: Start the microbial fermentation device 5 and culture Bacillus pasteurellii and Bacillus mucilaginosus for 24 hours at pH 7.0, temperature 30℃ and rotation speed 190r / min. After the culture is completed, open the valve on the bacterial liquid delivery pipe 83 and deliver the mixed bacterial liquid to the inner chamber 813 of the biological dust suppressant preparation device 8.

[0079] S2: When the bacterial solution enters the inner chamber 813 of the biological dust suppressant preparation device 8, open the valves on the binder delivery pipe 82 and the urea delivery pipe 801 to deliver the sodium alginate solution and urea mother liquor to the inner chamber 813. At the same time, start the pre-carbonation stirrer 86 and set the stirring speed to 150-200 r / min. At this time, the sodium bicarbonate nozzle 861 and the aeration pipe 85 are in the closed state.

[0080] S3: The pH value of the mixture in the inner chamber 813 is monitored in real time by pH sensor 87. When pH < 7, sodium bicarbonate nozzle 861 is activated to spray sodium bicarbonate solution into the mixture. When pH > 9, sodium bicarbonate nozzle 861 is turned off to stabilize the pH of the mixture in the range of 7.0-9.0, which can ensure the activity of Bacillus pasteurellii and Bacillus mucilaginosus. The dissolved oxygen concentration in the mixture is monitored in real time by oxygen sensor 88. When the dissolved oxygen concentration < 5 mg / L, aeration pipe 85 is activated to introduce oxygen into the mixture until the dissolved oxygen concentration ≥ 5 mg / L, and then aeration pipe 85 is turned off.

[0081] S4: Real-time monitoring of the OD of the mixture using optical density sensor 89. 600 Value, when OD 600 When OD < 0.5, increase the valve opening of the bacterial solution delivery pipe 83 to increase the input of mixed bacterial solution; when OD 600 When the value is greater than 1.5, increase the valve opening of the adhesive delivery pipe 82 to increase the input flow of sodium alginate solution; until the OD value is reached. 600 Once the OD value is stabilized between 0.8 and 1.2, the delivery of the mixed bacterial solution and binder should be stopped; 600 The range ensures a balanced concentration of bacteria in the dust suppressant, taking into account both dust suppression adhesion and mineralization efficiency.

[0082] S5: Continue stirring for 10-15 minutes to fully mix the liquid and form sodium alginate-based biological dust suppressant. Under normal operating conditions, the normal delivery pipe 8111 is normally open and the emergency delivery pipe 8112 is normally closed. When the liquid level of sodium alginate-based biological dust suppressant in the inner chamber 813 is higher than that in the normal delivery pipe 8111, the sodium alginate-based biological dust suppressant flows by gravity through the normal delivery pipe 8111 to the outer chamber 814 for storage, ensuring a stable supply of biological dust suppressant.

[0083] S6: Monitor the level of sodium alginate-based biological dust suppressant in the outer chamber 814 using level sensors I 8101 and II 8102: If the level of sodium alginate-based biological dust suppressant is lower than the detection height of level sensor II 8102, the IoT control unit 81 outputs a signal indicating that normal operation is not possible; if the level of sodium alginate-based biological dust suppressant is higher than the detection height of level sensor II 8102 but lower than the detection height of level sensor I 8101, the IoT control unit 81 outputs a low-power operation signal; if the level of sodium alginate-based biological dust suppressant is higher than the detection height of level sensor I 8101, the IoT control unit 81 outputs a normal operation signal.

[0084] The dust suppression and reinforcement collaborative operation process in this control method includes the following steps:

[0085] T1: Start the automated dust suppression and reinforcement vehicle 1, and simultaneously turn on the IoT infrared recognition sensor 14 and the IoT panoramic imager 15. The two transmit the images of the walls and bottom of the alley / tunnel and the temperature distribution information to the ground IoT terminal. The ground terminal analyzes the data using artificial intelligence technology, marks the dangerous points that need to be reinforced, and feeds back the marking results to the IoT control unit 81.

[0086] T2: The IoT control unit 81, based on the marked hazardous points requiring reinforcement, controls the universal reinforcement arms I12 and II13 to adjust their posture, aligning the atomizing nozzles with the hazardous points requiring reinforcement; it then activates the spray valve of universal reinforcement arm I12 to spray sodium alginate-based biological dust suppressant onto the reinforcement points. The dust suppressant forms a sodium alginate hydrogel on the surface of the point, fixing Bacillus pasteurellii and Bacillus mucilaginosus at the point; after spraying for 5-10 seconds, universal reinforcement arm I12 is closed, and universal reinforcement arm II13 is activated to spray calcium chloride mineralizing agent onto the same point at a rate of 0.5-1 L / m². 2 Close the universal reinforcement arm II13; among which, Bacillus mucilaginosus fermentation produces carbonic anhydrase, which can absorb CO2 in the alley / tunnel and generate HCO3. — Sodium bicarbonate in biological dust suppressants can promote the production of HCO3- — Converted to CO3 2— Bacillus pasteurellium fermentation produces urease, which can decompose urea in dust suppressants to generate additional carbonate ions, ultimately leading to CO3. 2— With Ca in mineralizing agents 2+ By combining the formation of calcium carbonate crystals, in-situ mineralization reinforcement of dangerous locations can be achieved, eliminating the potential for instability of the surrounding rock.

[0087] T3: Real-time monitoring of dust concentration in the alley / tunnel via dust concentration sensor 2. When the dust concentration exceeds 10mg / m³... 3When the set threshold is reached, the IoT control unit 81 activates the hazard warning light 3 to flash and opens the valves of the fog curtain nozzle I 16 and fog curtain nozzle II 17 to spray sodium alginate-based biological dust suppressant into the alley / tunnel to reduce dust; until the dust concentration drops below the threshold to ensure the breathing safety of the workers.

[0088] T4: During its operation, the automated dust suppression and reinforcement vehicle 1 activates the dust suppressant spraying device 9, spraying 1-2 L / m² of dust suppressant onto the ground. 2 Sodium alginate-based biological dust suppressant; the flat scraper 114 scrapes away excess dust as the vehicle moves, while the flattening roller brush 113 simultaneously compacts the ground; when the vehicle reaches the area where the dust suppressant has been sprayed, the mineralizer coating device 10 is activated to spray 0.5-1 L / m² onto the ground. 2 Calcium chloride mineralizer achieves the dual effects of dust fixation and ground reinforcement through in-situ surface mineralization, improving the comfort and safety of the tunnel / alley construction environment.

[0089] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A dust suppression and reinforcement synergistic protection device for roadway and tunnel construction, characterized in that: It includes an automated dust suppression and reinforcement vehicle (1), a dust suppression and reinforcement configuration supply unit, an operation execution unit, and an Internet of Things control unit (81); The automated dust suppression and reinforcement vehicle (1) includes a body body (104) and a top loading platform (101), an unmanned control room (102) and an airborne platform (103) mounted on the body body (104). The body body (104) has a built-in fuselage piping system and an electrical power supply system. The fuselage piping system is used to connect various fluid supply operation execution units, and the electrical power supply system provides a stable power supply for each electrical component. The dust suppression and reinforcement configuration supply unit includes a microbial fermentation device (5), a mineralizing agent storage tank (7), a binder storage tank (6), a urea storage tank (80), and a biological dust suppressant preparation device (8). The microbial fermentation device (5), the mineralizing agent storage tank (7), the binder storage tank (6), the urea storage tank (80), and the biological dust suppressant preparation device (8) are all installed on the airborne platform (103). The microbial fermentation device (5) includes several microbial fermentation tanks for culturing a mixed bacterial solution of Bacillus pasteurellii and Bacillus mucilaginosus; the microbial fermentation tanks are connected to the biological dust suppressant preparation device (8) through bacterial solution delivery pipe (83) for supplying the mixed bacterial solution to the biological dust suppressant preparation device (8); the binder storage tank (6) contains sodium alginate solution, and the binder storage tank (6) is connected to the biological dust suppressant preparation device (8) through binder delivery pipe (82) for supplying sodium alginate solution to the biological dust suppressant preparation device (8); the urea storage tank (80) stores urea mother liquor, and the urea storage tank (80) is connected to the biological dust suppressant preparation device (8) through urea delivery pipe (801); The biological dust suppressant preparation device (8) is used to prepare sodium alginate-based biological dust suppressant; the biological dust suppressant preparation device (8) includes a shell, a partition (812), a pre-carbonation stirrer (86), and an aeration pipe (85); the partition (812) is vertically arranged inside the shell, dividing the internal space into an inner chamber (813) and an outer chamber (814), and the bacterial liquid delivery pipe (83), the binder delivery pipe (82), and the urea delivery pipe (801) are all connected to the inner chamber (813); a normal delivery pipe (8111) is opened at the top of the partition (812), and an emergency delivery pipe (8112) is opened at the bottom, and electromagnetic valves are installed on both the normal delivery pipe (8111) and the emergency delivery pipe (8112); the inner chamber (813) and the outer chamber (814) can be connected through the normal delivery pipe (8111) or the emergency delivery pipe (8112); The precarbonation stirrer (86) and the aeration pipe (85) are installed at the bottom of the inner chamber (813). The precarbonation stirrer (86) has a passage and is connected to several sodium bicarbonate nozzles (861). The precarbonation stirrer (86) and the aeration pipe (85) are connected to an external sodium bicarbonate storage tank and an oxygen supply tank through pipelines. The outer chamber (814) of the microbial fermentation device (5) is connected to a dust suppressant delivery pipe (84), and the end of the dust suppressant delivery pipe (84) away from the microbial fermentation device (5) is connected to the operation execution unit through the machine body piping system; the mineralizing agent storage tank (7) stores calcium chloride mineralization liquid and is connected to a mineralizing agent delivery pipe, and the end of the mineralizing agent delivery pipe away from the mineralizing agent storage tank (7) is connected to the operation execution unit through the machine body piping system; The operation execution unit includes a fog curtain dust suppression component, a ground operation component, and a wall reinforcement component. The fog curtain dust suppression component is used for the settling of dust in the air, the ground operation component is used for fixing and reinforcing dust on the ground, and the wall reinforcement component is used for reinforcing dangerous points on the walls of tunnels / alleys. The Internet of Things control unit (81) is integrated on the outer surface of the biological dust suppressant preparation device (8) and is electrically connected to the dust suppression and reinforcement preparation supply unit and the operation execution unit to realize parameter acquisition, instruction transmission and operation status monitoring.

2. The dust suppression and reinforcement synergistic protection device for roadway and tunnel construction according to claim 1, characterized in that: The biological dust suppressant preparation device (8) further includes a parameter detection component, which includes a pH sensor (87), an oxygen sensor (88), an optical density sensor (89), a liquid level sensor I (8101), and a liquid level sensor II (8102). The pH sensor (87) and oxygen sensor (88) are installed in the inner cavity (813) of the housing; the optical density sensor (89) is fixed to the center of the partition (812), and the detection end extends through the partition (812) to the middle of the inner cavity (813); the liquid level sensor I (8101) is located on the upper part of the side wall of the outer cavity (814) of the housing, and the liquid level sensor II (8102) is located on the lower part of the side wall of the outer cavity (814) of the housing.

3. The dust suppression and reinforcement synergistic protection device for roadway and tunnel construction according to claim 2, characterized in that: The outlet of the bacterial liquid delivery pipe (83) is closer to the bottom of the inner chamber (813) than the outlet of the binder delivery pipe (82); the pH sensor (87) is closer to the bottom of the inner chamber (813) than the oxygen sensor (88); several aeration pipes (85) are provided and are evenly and horizontally arranged at the bottom of the inner chamber (813) of the shell, and the height of the air outlet of the aeration pipe (85) is lower than the height of the liquid outlet of the pre-carbonation stirrer (86).

4. A dust suppression and reinforcement synergistic protection device for roadway and tunnel construction according to any one of claims 1-3, characterized in that: The fog curtain dust suppression assembly includes fog curtain nozzle I (16) and fog curtain nozzle II (17). Fog curtain nozzle I (16) and fog curtain nozzle II (17) are installed on one side of the top loading platform (101). The end of the dust suppressant delivery pipe (84) away from the biological dust suppressant preparation device (8) is connected to fog curtain nozzle I (16) and fog curtain nozzle II (17) through the body piping system.

5. A dust suppression and reinforcement synergistic protection device for roadway and tunnel construction according to claim 4, characterized in that: The wall reinforcement assembly includes a universal reinforcement arm I (12) and a universal reinforcement arm II (13). Both the universal reinforcement arm I (12) and the universal reinforcement arm II (13) are five-degree-of-freedom or six-degree-of-freedom robotic arms, and the ends are equipped with a 360° rotatable atomizing nozzle. The atomizing nozzle is connected to the body piping system built into the vehicle body (104) through a rotary joint. The end of the dust suppressant delivery pipe (84) away from the biological dust suppressant preparation device (8) is connected to the universal reinforcement arm I (12) through the body piping system. The end of the mineralizer delivery pipe away from the mineralizer storage tank (7) is connected to the universal reinforcement arm II (13) through the body piping system. The universal reinforcement arm I (12) and the universal reinforcement arm II (13) are positioned and sprayed under the control of the Internet of Things control unit (81) according to the reinforcement points marked by the ground terminal.

6. The dust suppression and reinforcement synergistic protection device for roadway and tunnel construction according to claim 5, characterized in that: The ground operation components include a dust suppressant roller spraying device (9), a scraper roller leveling device (11), and a mineralizer coating device (10), which are arranged sequentially along the travel direction of the vehicle body (104). The dust suppressant roller spraying device (9) is located on the lower front side of the vehicle body (104), including a connecting frame I (91), a support shaft I (92) and a high-pressure atomizing nozzle (93). The support shaft I (92) is a hollow structure and is connected to the dust suppressant delivery pipe (84) of the biological dust suppressant preparation device (8) through the body pipeline system. Several of the high-pressure atomizing nozzles (93) are arranged on the surface of the support shaft I (92) and are connected to the inner cavity of the support shaft I (92). The support shaft I (92) is connected and fixed to the vehicle body (104) through the connecting frame I (91). The mineralizing agent coating device (10) is located on the lower rear side of the vehicle body (104), including a connecting frame II (1001), a support shaft II (1002) and a coating port (1003). The support shaft II (1002) is a hollow structure and is connected to the mineralizing agent delivery pipe through the fuselage piping system. The coating port (1003) extends axially along the support shaft II (1002). The support shaft II (1002) is connected and fixed to the bottom surface of the vehicle body (104) through the connecting frame II (1001). The scraper leveling device (11) is located behind the dust suppressant spraying device (9) and includes a connecting frame III (111), a support shaft III (112), a flattening roller brush (113), and a flat scraper (114). The connecting frame III (111) is fixed to the bottom surface of the vehicle body. The support shaft III (112) is rotatably connected to the connecting frame III (111). The flattening roller brush (113) is coaxially fixed to the outside of the support shaft III (112). The flat scraper (114) is located on the side of the flattening roller brush (113) close to the dust suppressant spraying device (9). The bottom surface of the flat scraper (114) is in contact with the ground.

7. The dust suppression and reinforcement synergistic protection device for roadway and tunnel construction according to claim 1, characterized in that: The top loading platform (101) is equipped with an Internet of Things infrared recognition sensor (14) and an Internet of Things panoramic imager (15). A dust concentration sensor (2) is installed on the front side of the top loading platform (101), and a hazard warning light (3) is installed on the bottom front side. A lighting group (4) is installed in front of the vehicle body (104).

8. A dust suppression and reinforcement synergistic protection device for roadway and tunnel construction according to claim 6, characterized in that: The sodium alginate-based biological dust suppressant is composed of mixed bacterial solution, sodium alginate and sodium bicarbonate; the mixed bacterial solution contains Bacillus mucilaginosus and Bacillus pasteurellus, which are cultured in a microbial fermentation device (5) at pH 7.0, temperature 30℃ and rotation speed 190r / min for 24h, and are then mixed and transported to the biological dust suppressant preparation device (8) through the bacterial solution delivery pipe (83); When compounding the sodium alginate-based biological dust suppressant, the fermentation broth of Bacillus pasteurellii and the fermentation broth of Bacillus mucilaginosus are first thoroughly mixed at a volume ratio of 1:

1. Then, sodium alginate, urea and sodium bicarbonate are added to the mixed bacterial solution in the inner chamber (813) and the volume is adjusted. The final concentration of each component in the sodium alginate-based biological dust suppressant system meets the following requirements: sodium alginate 0.5% w / v, sodium bicarbonate 0.2 mol / L, and urea 20 g / L.

9. A method for coordinated dust suppression and reinforcement control in roadway and tunnel construction, characterized in that: Based on the dust suppression and reinforcement synergistic protection device for roadway and tunnel construction as described in claim 8; the automatic preparation process of the sodium alginate-based biological dust suppressant in the control method includes the following steps: S1: Start the microbial fermentation device (5) and culture Bacillus pasteurellii and Bacillus mucilaginosus for 24 hours under the conditions of pH 7.0, temperature 30℃ and rotation speed 190r / min. After the culture is completed, open the valve on the bacterial liquid delivery pipe (83) and transport the mixed bacterial liquid to the inner chamber (813) of the biological dust suppressant preparation device (8). S2: When the bacterial liquid is delivered into the inner chamber (813) of the biological dust suppressant preparation device (8), open the valves on the binder delivery pipe (82) and the urea delivery pipe (801) to deliver the sodium alginate solution and urea mother liquor to the inner chamber (813). At the same time, start the pre-carbonation stirrer (86) and set the stirring speed to 150-200 r / min. At this time, the sodium bicarbonate nozzle (861) and the aeration pipe (85) are in the closed state. S3: The pH value of the mixture in the inner chamber (813) is monitored in real time by pH sensor (87). When pH < 7, the sodium bicarbonate nozzle (861) is started to spray sodium bicarbonate solution into the mixture; when pH > 9, the sodium bicarbonate nozzle (861) is turned off. The dissolved oxygen concentration in the mixture is monitored in real time by oxygen sensor (88). When the dissolved oxygen concentration < 5 mg / L, the aeration pipe (85) is started to introduce oxygen into the mixture until the dissolved oxygen concentration ≥ 5 mg / L, and then the aeration pipe (85) is turned off. S4: Real-time monitoring of the OD of the mixture using an optical density sensor (89) 600 Value, when OD 600 When OD < 0.5, increase the valve opening of the bacterial solution delivery pipe (83) to increase the input of mixed bacterial solution; when OD 600 When the value is greater than 1.5, increase the valve opening of the adhesive delivery pipe (82) to increase the input of sodium alginate solution; until OD 600 Once the concentration is stabilized between 0.8 and 1.2, the delivery of the mixed bacterial solution and binder should be stopped. S5: Continue stirring for 10-15 minutes to fully mix the mixture and form sodium alginate-based biological dust suppressant; under normal operating conditions, the normal delivery pipe (8111) is normally open and the emergency delivery pipe (8112) is normally closed. When the liquid level of sodium alginate-based biological dust suppressant in the inner chamber (813) is higher than that in the normal delivery pipe (8111), the sodium alginate-based biological dust suppressant flows by gravity through the normal delivery pipe (8111) to the outer chamber (814) for storage. S6: Monitor the level of sodium alginate-based biological dust suppressant in the outer chamber (814) through level sensor I (8101) and level sensor II (8102): If the level of sodium alginate-based biological dust suppressant is lower than the detection height of level sensor II (8102), the Internet of Things control unit (81) outputs a signal indicating that normal operation is not possible; if the level of sodium alginate-based biological dust suppressant is higher than the detection height of level sensor II (8102) and lower than the detection height of level sensor I (8101), the Internet of Things control unit (81) outputs a low-power operation signal; if the level of sodium alginate-based biological dust suppressant is higher than the detection height of level sensor I (8101), the Internet of Things control unit (81) outputs a normal operation signal.

10. The method for coordinated dust suppression and reinforcement control in roadway and tunnel construction according to claim 9, characterized in that: The dust suppression and reinforcement collaborative operation process in the control method includes the following steps: T1: Start the automated dust suppression and reinforcement vehicle (1), and at the same time turn on the IoT infrared recognition sensor (14) and IoT panoramic imager (15). The two transmit the images of the wall and bottom of the alley / tunnel and the temperature distribution information to the ground IoT terminal. The ground terminal analyzes the data through artificial intelligence technology, marks the dangerous points that need to be reinforced, and feeds back the marking results to the IoT control unit (81). T2: The IoT control unit (81) controls the universal reinforcement arm I (12) and universal reinforcement arm II (13) to adjust their posture according to the marked dangerous points that need to be reinforced, so that the atomizing nozzles are aimed at the dangerous points that need to be reinforced; the spray valve of the universal reinforcement arm I (12) is activated to spray sodium alginate-based biological dust suppressant onto the dangerous points that need to be reinforced. The dust suppressant forms sodium alginate hydrogel on the surface of the point, fixing Bacillus pasteurellii and Bacillus mucilaginosus at the point; after spraying for 5-10 seconds, the universal reinforcement arm I (12) is closed and the universal reinforcement arm II (13) is activated to spray calcium chloride mineralizer onto the same point at a rate of 0.5-1 L / m. 2 Close the universal reinforcement arm II (13); the two combine to generate calcium carbonate crystals, realizing in-situ mineralization reinforcement of dangerous points; T3: The dust concentration in the alley / tunnel is monitored in real time by the dust concentration sensor (2). When the dust concentration exceeds the set concentration, the Internet of Things control unit (81) activates the hazard warning light (3) to flash and opens the valves of the fog spray nozzle I (16) and fog spray nozzle II (17) to spray sodium alginate-based biological dust suppressant into the alley / tunnel to reduce dust. T4: The automated dust suppression and reinforcement vehicle (1) activates the dust suppressant roller spraying device (9) during its journey to spray sodium alginate-based biological dust suppressant onto the ground; the flat scraper (114) scrapes away excess dust from the ground as the vehicle moves, and the flat roller brush (113) compacts the ground simultaneously; when the vehicle reaches the ground area that has been sprayed with biological dust suppressant, the mineralizing agent coating device (10) is activated to spray calcium chloride mineralizing agent onto the ground to achieve dust suppression and reinforcement of the ground.

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