Tunnel diameter expansion construction method and device, storage medium and processor

Abstract

The invention discloses a tunnel diameter extension construction method and device, a storage medium and a processor. According to the scheme, a target tunnel is excavated according to a preset path, and a tunnel section is obtained; based on the tunnel section, drilling is conducted according to a preset position, and a plurality of hole positions are obtained; and the multiple hole positions are filled with explosives, blasting is carried out according to a preset sequence, and an expanded target tunnel is obtained. Compared with a blasting method or a TBM one-time forming method in the prior art, the problem that the construction quality is difficult to guarantee or the construction cost is high exists, and the technical scheme provided by the invention has obvious advantages.

Description

Technical Field

[0001] The present application relates to the field of engineering technology, and in particular to a tunnel diameter expansion construction method, device, storage medium and processor. Background Art

[0002] Tunnel diameter expansion usually refers to increasing the diameter of an existing tunnel to meet new demands or improve traffic conditions. This construction process involves complex engineering technology.

[0003] Traditionally, tunnel diameter expansion usually uses blasting or TBM one-step forming methods. In the blasting method, blasting is used to break the rock, thereby expanding the tunnel diameter; in the TBM one-step forming method, a rotary cutter is used to excavate, while breaking the surrounding rock and excavating in the hole to form the entire tunnel section, thereby expanding the tunnel diameter.

[0004] However, both methods have certain defects: the blasting operation in the blasting method itself has a great safety risk, especially under complex geological conditions, which can easily cause accidents such as landslides and water gushing. Moreover, the blasting operation is difficult to ensure the consistency of the geometric size and shape of the tunnel section, which can easily lead to unevenness of the tunnel wall and affect subsequent construction and use. These problems increase the cost and difficulty of construction; the TBM used in the TBM one-time forming method has a high purchase cost and corresponding maintenance cost. In some areas with complex geological conditions and large changes in rock hardness, the TBM may not be able to advance smoothly and may even cause equipment damage. Once the tunnel diameter is set, it is difficult for the TBM to adjust the tunnel size midway, which limits the flexibility of construction.

[0005] Therefore, how to reduce construction costs while ensuring construction quality is a technical problem that needs to be solved urgently. Summary of the invention

[0006] Based on the above problems, the present application provides a tunnel diameter expansion construction method, device, storage medium and processor, the purpose of which is to reduce construction costs while ensuring construction quality.

[0007] The embodiments of the present application disclose the following technical solutions:

[0008] In a first aspect, the present application provides a tunnel diameter expansion construction method, the method comprising:

[0009] Dig the target tunnel according to the preset path to obtain the tunnel section;

[0010] Based on the tunnel section, drilling holes according to preset positions to obtain multiple hole positions;

[0011] Explosives are loaded into the multiple hole positions, and blasting is performed in a preset sequence to obtain an expanded target tunnel.

[0012] Optionally, after the target tunnel is excavated according to a preset path and the tunnel section is obtained, the method further includes:

[0013] The tunnel section is reinforced with steel mesh and shotcrete, and steel arc supports are installed.

[0014] Optionally, after the explosives are loaded into the plurality of hole positions and blasted in a preset order to obtain an expanded target tunnel, the method further includes:

[0015] The expanded target tunnel is reinforced with concrete lining and reinforced with steel mesh and prestressed steel strands.

[0016] Optionally, the multiple holes are charged with explosives and blasted in a preset order to obtain an expanded target tunnel, including:

[0017] The multiple holes are loaded with explosives, blasted in a preset order, crushed stone and fine dust after blasting are screened, and the screened crushed stone and fine dust are separated and transported to obtain an expanded target tunnel.

[0018] Optionally, before the target tunnel is excavated according to a preset path to obtain the tunnel section, the method further includes:

[0019] Acquiring geological data of the target tunnel; the geological data includes stratum structure, rock type or groundwater condition;

[0020] Based on the geological data of the target tunnel, a preset path is determined.

[0021] A second aspect of the present application provides a tunnel diameter expansion construction device, the device comprising:

[0022] The tunnel excavation module is used to excavate the target tunnel according to the preset path to obtain the tunnel section;

[0023] A tunnel drilling module, used for drilling holes according to preset positions based on the tunnel section to obtain multiple hole positions;

[0024] The tunnel blasting module is used to load explosives into the multiple hole positions and perform blasting in a preset sequence to obtain an expanded target tunnel.

[0025] Optionally, the device further comprises: a first reinforcement module;

[0026] The first reinforcement module is used to reinforce the tunnel section by using a steel mesh and shotcrete method, and to install steel arc supports.

[0027] Optionally, the device further comprises: a second reinforcement module;

[0028] The second reinforcement module is used to reinforce the expanded target tunnel with concrete lining and arrange steel mesh and prestressed steel strands.

[0029] A third aspect of the present application provides a computer-readable storage medium, in which a computer program is stored. When the program is executed by a processor, a tunnel diameter expansion construction method as provided in any implementation of the first aspect is implemented.

[0030] A fourth aspect of the present application provides a processor for running a computer program, which, when running, executes the tunnel diameter expansion construction method provided in any implementation of the first aspect.

[0031] Compared with the prior art, this application has the following beneficial effects:

[0032] The tunnel diameter expansion construction method provided by the present application first controls the TBM or other excavation equipment to excavate the target tunnel according to a preset path, so as to quickly form a preliminary tunnel section. After obtaining the tunnel section, holes are drilled at preset positions and explosives are loaded for blasting. This method enables the construction team to accurately control the distribution of explosive energy according to actual needs, thereby achieving efficient use of resources and reducing construction costs. The method adopts a phased construction method of excavation first and then drilling and blasting, which reduces construction costs while ensuring construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 A flow chart of a tunnel diameter expansion construction method provided in an embodiment of the present application;

[0035] Figure 2 A flow chart of another tunnel diameter expansion construction method provided in an embodiment of the present application;

[0036] Figure 3 A schematic structural diagram of a tunnel diameter expansion construction device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] As described above, the current tunnel diameter expansion usually adopts the blasting method or the TBM one-step forming method. In the blasting method, the rock is broken by blasting operations to achieve the expansion of the tunnel diameter; the TBM one-step forming method uses a rotary cutter to excavate, break the surrounding rock in the hole and excavate at the same time to form the entire tunnel section and achieve the expansion of the tunnel diameter.

[0038] However, both methods have certain defects: the blasting operation in the blasting method itself has a great safety risk, especially under complex geological conditions, which can easily cause accidents such as landslides and water gushing. Moreover, the blasting operation is difficult to ensure the consistency of the geometric size and shape of the tunnel section, which can easily lead to unevenness of the tunnel wall and affect subsequent construction and use. These problems increase the cost and difficulty of construction; the TBM used in the TBM one-time forming method has a high purchase cost and corresponding maintenance cost. In some areas with complex geological conditions and large changes in rock hardness, the TBM may not be able to advance smoothly and may even cause equipment damage. Once the tunnel diameter is set, it is difficult for the TBM to adjust the tunnel size midway, which limits the flexibility of construction.

[0039] In view of the above problems, the inventors have proposed a tunnel diameter expansion construction method, device, storage medium and processor after research. The target tunnel is excavated according to a preset path to obtain a tunnel section; based on the tunnel section, holes are drilled according to preset positions to obtain multiple hole positions; explosives are loaded into the multiple hole positions, and blasting is carried out in a preset order to obtain the expanded target tunnel.

[0040] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] See also Figure 1 , which is a flow chart of a tunnel diameter expansion construction method provided in an embodiment of the present application. Figure 1 As shown, the method comprises the following steps:

[0042] S101. Dig a target tunnel according to a preset path to obtain a tunnel cross section.

[0043] The size of the target tunnel is designed according to the engineering requirements and geological conditions, and the excavation equipment and the best path for construction are determined. For hard rock formations, a tunnel boring machine (TBM) may be selected; for soft soil or mixed formations, a slurry balance (EPB) shield machine or other types of excavation equipment may be required.

[0044] Using TBM or other excavation equipment to dig the target tunnel along a preset path can quickly form a preliminary tunnel section. This method allows large-scale and continuous construction, and can complete tunnel excavation work more efficiently than traditional drilling and blasting technology.

[0045] S102: Based on the tunnel section, drilling is performed according to preset positions to obtain a plurality of hole positions.

[0046] According to the engineering design requirements and geological conditions, a detailed drilling plan is formulated, including parameters such as the location, depth, angle, and aperture size of the drilling. For example, a laser rangefinder is used to accurately locate the drilling position, an automated drilling robot arm accurately controls the position and posture of the drilling tool, a gyroscope measures and calibrates the posture of the robot arm, and a drilling path is pre-planned according to geological exploration data and construction drawings. The control system generates movement instructions for the robot arm according to the planned path; the main control computer controls the robot arm to move to the predetermined drilling position according to the instructions generated by the path planning, and monitors the posture of the robot arm in real time through the gyroscope to ensure that the drilling tool maintains the correct angle and direction; after reaching the predetermined position, the drilling tool is started for drilling, and various parameters in the drilling process, such as drilling depth, speed, pressure, etc., are monitored in real time through sensors. According to the real-time monitoring data, the main control computer automatically adjusts the feed speed and pressure of the drilling tool to ensure the stability and efficiency of the drilling process.

[0047] After drilling is completed, the laser rangefinder and gyroscope are used to review the drilling position and depth to ensure that the drilling quality meets the requirements. The combined use of the laser rangefinder system and the gyroscope can achieve high-precision positioning of the drilling position. The gyroscope can monitor and calibrate the posture of the robotic arm in real time to ensure the stability of the drilling process. The control system can automatically control the movement of the robotic arm and the drilling process to improve the drilling efficiency. The real-time monitoring and automatic adjustment functions can reduce the errors and risks caused by human operation.

[0048] Based on the tunnel section, drilling is performed according to preset positions to obtain multiple hole positions, which lays a solid foundation for subsequent processes such as loading explosives for blasting.

[0049] S103, loading explosives into the plurality of hole positions, and blasting them in a preset order to obtain an expanded target tunnel.

[0050] According to the geological conditions, tunnel shape and the required expansion size, a detailed blasting design plan is formulated, the amount of explosives required for each hole is calculated, the detonation sequence is determined (usually using the micro-difference blasting method), and the delay setting is planned. The appropriate type of explosive is selected according to the rock properties, for example, emulsion explosives are suitable for humid environments, while ammonium nitrate explosives are suitable for harder rocks. High-precision detonation devices such as detonator detonators or electronic detonators are used to ensure accurate detonation time and sequence control.

[0051] Explosives are loaded into the plurality of hole positions and blasted in a preset sequence to achieve the desired tunnel expansion goal.

[0052] The tunnel diameter expansion construction method provided in this embodiment first controls the TBM or other excavation equipment to excavate the target tunnel according to a preset path, so as to quickly form a preliminary tunnel section. After obtaining the tunnel section, holes are drilled at preset positions and explosives are loaded for blasting. This method enables the construction team to accurately control the distribution of explosive energy according to actual needs, thereby achieving efficient use of resources and reducing construction costs. The method adopts a phased construction method of excavation first and then drilling and blasting, which reduces construction costs while ensuring construction quality.

[0053] On the basis of the previous embodiment, the tunnel diameter expansion method is improved by adding a step of acquiring the address data of the target tunnel before obtaining the tunnel section, and adding reinforcement steps after obtaining the tunnel section and after blasting.

[0054] See also Figure 2 , which is a flow chart of another tunnel diameter expansion construction method provided in the embodiment of the present application. Figure 2 As shown, the method comprises the following steps:

[0055] S201. Acquire geological data of a target tunnel, and determine a preset path based on the geological data of the target tunnel.

[0056] The geological data include stratum structure, rock type or groundwater conditions.

[0057] In order to obtain geological data of the target tunnel, appropriate detection equipment is usually selected for detection. For example, geological radar (GPR) is used to detect the stratum structure to obtain the distribution of different strata underneath, and seismic wave detectors are used to detect seismic wave reflections to understand the layered structure and physical properties of the strata; rock samples are obtained through core drilling and laboratory analysis is performed to determine the type, strength and other properties of the rock, and X-ray diffraction (XRD) and other equipment are used to analyze the composition of rock samples; electromagnetic induction detectors are used to detect the presence and distribution of groundwater, and geological radar is used to detect the flow direction of groundwater and the thickness of the aquifer.

[0058] Obtaining geological data of the target tunnel is a crucial step before carrying out tunnel diameter expansion construction, which directly affects various aspects such as the selection of construction methods, determination of design parameters, and risk management. For example, identifying geological structural features such as faults and folds, and evaluating their impact on tunnel stability; analyzing the physical and mechanical properties of rocks, such as hardness, strength, and degree of crack development. This information is crucial for selecting appropriate excavation tools (such as TBM types); identifying the location, thickness, and permeability of aquifers, evaluating the amount of water pressure that may be encountered, and preventing water inrush accidents during construction. In some cases, chemical analysis of groundwater is also required to evaluate its potential corrosion or other effects on construction materials.

[0059] S202: excavating the target tunnel according to the preset path to obtain a tunnel cross section.

[0060] For example, based on the planned path obtained in the previous step, a smaller TBM is selected, and the advancement distance of the TBM is 3 meters, which makes it unnecessary to configure a larger TBM and subsequent connection equipment, thereby saving a lot of expenses.

[0061] S203, reinforce the tunnel section using steel mesh and shotcrete, and install steel arc supports.

[0062] After obtaining the tunnel section, use a high-pressure water gun or pneumatic pick to remove impurities such as loose soil and loose rocks on the tunnel wall, mark the laying position of the steel mesh on the tunnel wall, and use special tools to lay the steel mesh on the tunnel wall to ensure that it fits tightly against the tunnel wall. The mesh size of the steel mesh should meet the design requirements, generally ranging from 10cm×10cm to 20cm×20cm. The role of the steel mesh is to provide a uniform support layer to help disperse stress and limit the development of rock cracks.

[0063] According to the design requirements, the dry mix or wet mix of shotcrete is prepared. The dry mix is ​​generally composed of cement, sand, gravel, additives, etc.; the wet mix is ​​added with appropriate amount of water on site. Use shotcrete equipment to spray the mixture onto the steel mesh. This shotcrete can not only harden quickly, but also form a good bond with the rock surface, effectively preventing rock spalling.

[0064] Prefabricated steel arches (also called steel arc supports) are installed outside the shotcrete layer. These steel arches are arranged at intervals along the tunnel axis. The spacing is generally determined by geological conditions, and the common range is between 0.5m and 1.5m. The steel arches are firmly fixed to the tunnel wall through anchors or other connectors to form a continuous support ring, further enhancing the overall stability of the tunnel.

[0065] In the actual construction process, the thickness and strength of the shotcrete should be checked to ensure that it meets the design requirements, the installation quality of the steel arch should be checked to ensure that it is stable and accurately positioned, and the shotcrete and steel arch should be checked regularly to repair any cracks or looseness. The use of steel mesh plus shotcrete and steel arc support to reinforce the tunnel section is an efficient and economical technical means that can not only quickly improve the stability of the tunnel structure, but also provide a solid foundation for subsequent construction.

[0066] S204: Based on the tunnel section, drilling is performed according to preset positions to obtain a plurality of hole positions.

[0067] According to the engineering design requirements and geological conditions, a detailed drilling plan is formulated, including parameters such as the location, depth, angle, and aperture size of the drilling. For example, a laser rangefinder is used to accurately locate the drilling position, an automated drilling robot arm accurately controls the position and posture of the drilling tool, a gyroscope measures and calibrates the posture of the robot arm, and a drilling path is pre-planned according to geological exploration data and construction drawings. The control system generates movement instructions for the robot arm according to the planned path; the main control computer controls the robot arm to move to the predetermined drilling position according to the instructions generated by the path planning, and monitors the posture of the robot arm in real time through the gyroscope to ensure that the drilling tool maintains the correct angle and direction; after reaching the predetermined position, the drilling tool is started for drilling, and various parameters in the drilling process, such as drilling depth, speed, pressure, etc., are monitored in real time through sensors. According to the real-time monitoring data, the main control computer automatically adjusts the feed speed and pressure of the drilling tool to ensure the stability and efficiency of the drilling process.

[0068] After drilling is completed, the laser rangefinder and gyroscope are used to review the drilling position and depth to ensure that the drilling quality meets the requirements. The combined use of the laser rangefinder system and the gyroscope can achieve high-precision positioning of the drilling position. The gyroscope can monitor and calibrate the posture of the robotic arm in real time to ensure the stability of the drilling process. The control system can automatically control the movement of the robotic arm and the drilling process to improve the drilling efficiency. The real-time monitoring and automatic adjustment functions can reduce the errors and risks caused by human operation.

[0069] Based on the tunnel section, drilling is performed according to preset positions to obtain multiple hole positions, which lays a solid foundation for subsequent processes (such as loading explosives for blasting or other reinforcement measures).

[0070] S205, loading explosives into the plurality of hole positions, and blasting them in a preset order to obtain an expanded target tunnel.

[0071] The method comprises: loading explosives into the plurality of holes and blasting them in a preset order to obtain an expanded target tunnel, including:

[0072] The multiple holes are loaded with explosives, blasted in a preset order, crushed stone and fine dust after blasting are screened, and the screened crushed stone and fine dust are separated and transported to obtain an expanded target tunnel.

[0073] According to the cross-sectional shape of the tunnel, the properties of the rock and the required expansion size, a detailed blasting plan is designed, the amount of explosives required for each hole is calculated, the detonation sequence is determined (usually using the micro-difference blasting method), and the delay setting is planned. The micro-difference blasting method sets millisecond-level delays between different hole positions, so that the explosion energy is released in stages, thereby optimizing the crushing effect and reducing the impact of vibration.

[0074] Exemplarily, a control system is used to move the blasting and charging robot to above the drilling position, and a laser ranging system and a gyroscope are used to ensure that the robot is accurately aligned with the drill hole; the explosives are transported to the loading device of the blasting and charging robot through a sealed delivery pipe to ensure the sealing during the transportation process and avoid leakage of the explosives; the blasting and charging robot inserts the explosives into the drill hole section by section through its end effector, and the control system controls the loading depth and quantity according to a preset loading program, and monitors the position and quantity of the explosives in real time during the loading process to ensure accurate loading; confirm that the explosives are completely loaded into the drill hole and reach the predetermined depth and quantity, and use the control system to confirm various parameters in the loading process to ensure the loading quality; a professional operates the detonator to detonate each group of explosives in sequence according to a predetermined program.

[0075] Explosives are loaded into the plurality of hole positions and blasted in a preset sequence to achieve the desired tunnel expansion goal.

[0076] After the blasting operation is completed, it is very necessary to screen the crushed stone and fine dust and separate them for transportation. For example, a vibrating screening machine is used to screen the small crushed stone and fine dust. According to the size and type of the crushed stone, a suitable screen aperture is selected. The vibrating screening machine can effectively separate materials of different particle sizes according to the set screen aperture size. The crushed stone after blasting is sent to the vibrating screening machine, and the large pieces of crushed stone are screened out through the coarser screen aperture, and the smaller pieces of crushed stone and fine dust are screened out through the finer screen aperture; the large pieces of crushed stone are transported to the designated collection area through the primary conveyor belt, and the smaller pieces of crushed stone and fine dust are transported to another designated collection area through the secondary conveyor belt; when the large pieces of crushed stone on the primary conveyor belt accumulate to a certain amount, the automated transport vehicle drives into the designated location, and uses a bucket or other loading tools to load the large pieces of crushed stone onto the transport vehicle, and the transport vehicle transports the large pieces of crushed stone out of the tunnel.

[0077] The use of mechanized and automated equipment to screen and separate the crushed stone and fine dust for transportation not only promotes on-site safety management and environmental protection, but also improves the effective use of resources.

[0078] S206. Use concrete lining to reinforce the expanded target tunnel, and arrange steel mesh and prestressed steel strands.

[0079] After the blasting in the previous step, a vibrating screening machine is used to clean up the gravel produced by the blasting, ensuring that there is no loose gravel or debris in the tunnel before reinforcement.

[0080] For example, make or install the formwork according to the design requirements, ensure that the formwork is in the correct position and has sufficient strength and rigidity to withstand the pressure of the concrete, prepare high-strength concrete materials, mix them according to the design ratio, use a concrete mixer to mix the materials thoroughly and evenly, pour the mixed concrete into the formwork, pour in layers and vibrate to make it dense, the thickness of each layer of concrete should not exceed 30 cm, and ensure that the vibration is uniform.

[0081] Steel mesh is laid at key positions of concrete lining to enhance the strength and toughness of the lining. According to the design requirements, the mesh size of the steel mesh should meet the requirements of the specifications, generally ranging from 10cm×10cm to 20cm×20cm. Anchor rods or bolts are used to fix the steel mesh to the formwork or existing concrete surface to ensure that the steel mesh is tightly bonded to the concrete surface.

[0082] Arrange prestressed steel strands in high-pressure areas (such as the vault and side walls of tunnels). Determine the location and quantity of prestressed steel strands according to design requirements. Use prestressing tensioning equipment to tension the steel strands to generate prestress. The tensioning process should be uniform and continuous to ensure that the prestress is evenly distributed. After the tensioning is completed, use clamps to fix the steel strands to the concrete structure.

[0083] All these operations require quality inspection and maintenance, such as checking the thickness and strength of high-strength concrete lining to ensure that they meet the design requirements, checking the laying quality of the steel mesh to ensure that it is stable and accurately positioned, using non-destructive testing technology (such as ultrasonic testing) to conduct quality inspections on concrete lining and steel mesh, regularly inspecting concrete lining and steel mesh, and repairing cracks or looseness in a timely manner, and performing daily maintenance on concrete lining equipment and steel mesh laying equipment to ensure their normal operation.

[0084] The use of high-strength concrete lining combined with steel mesh and prestressed steel strands significantly improves the overall strength and stability of the tunnel structure, and can effectively resist external pressure and internal stress.

[0085] Optionally, after the high-strength concrete lining is used for reinforcement and the steel mesh and prestressed steel strands are arranged, the method further includes:

[0086] Real-time monitoring of tunnel change data; the tunnel change data includes changes in stress, temperature and displacement of the tunnel rock mass.

[0087] For example, distributed fiber optic sensors, drones and 3D laser scanners are used to monitor tunnel change data in real time, such as rock stress, temperature and displacement changes, and conduct regular tunnel surface inspections. Wireless sensor networks are used to enhance data transmission capabilities to ensure the accuracy and timeliness of real-time monitoring data. Based on the tunnel change data obtained through monitoring, the safety and stability of the tunnel structure are evaluated. The changes in various parameters of the tunnel structure are displayed in real time so that construction personnel can promptly discover potential safety hazards and issue alarms when data is abnormal to ensure construction safety. If structural abnormalities are found, immediate measures are taken to reinforce or repair them.

[0088] Another tunnel diameter expansion construction method provided in this embodiment first obtains the geological data of the target tunnel, which is conducive to formulating a scientific construction plan. The target tunnel is excavated according to a preset path, and a preliminary tunnel section can be quickly formed. After the tunnel section is excavated, a reinforcement is performed to ensure the stability of the tunnel structure. Then, holes are drilled at preset positions and explosives are loaded for blasting. After blasting, secondary reinforcement is performed. This method enables the construction team to accurately control the distribution of explosive energy according to actual needs, thereby achieving efficient use of resources and reducing construction costs. After secondary reinforcement, the overall strength and stability of the tunnel structure are further improved. This method adopts a phased construction method of excavation first and then drilling and blasting, which reduces construction costs while ensuring construction quality.

[0089] Based on the tunnel diameter expansion construction method introduced in the previous embodiment, the present application also provides a tunnel diameter expansion construction device accordingly. Figure 3 Figure 1 is a schematic diagram of the structure of the device. Figure 3 As shown, the device comprises:

[0090] The tunnel excavation module 301 is used to excavate the target tunnel according to a preset path to obtain a tunnel section;

[0091] A tunnel drilling module 302 is used to drill holes according to preset positions based on the tunnel section to obtain multiple hole positions;

[0092] The tunnel blasting module 303 is used to load explosives into the multiple hole positions and perform blasting in a preset sequence to obtain an expanded target tunnel.

[0093] Optionally, the device further comprises: a first reinforcement module;

[0094] The first reinforcement module is used to reinforce the tunnel section by using a steel mesh and shotcrete method, and to install steel arc supports.

[0095] Optionally, the device further comprises: a second reinforcement module;

[0096] The second reinforcement module is used to reinforce the expanded target tunnel with concrete lining and arrange steel mesh and prestressed steel strands.

[0097] Optionally, the tunnel blasting module is specifically used for:

[0098] The multiple holes are loaded with explosives, blasted in a preset order, crushed stone and fine dust after blasting are screened, and the screened crushed stone and fine dust are separated and transported to obtain an expanded target tunnel.

[0099] Optionally, the device further comprises: a geological data acquisition module;

[0100] The geological data acquisition module is used to acquire geological data of the target tunnel; the geological data includes stratum structure, rock type or groundwater conditions; based on the geological data of the target tunnel, a preset path is determined.

[0101] In addition, an embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored. When the program is executed by a processor, the tunnel diameter expansion construction method described in any of the method embodiments is implemented.

[0102] In addition, an embodiment of the present application also provides a processor, which is used to run a computer program. When the program is running, it executes the tunnel diameter expansion construction method introduced in any implementation method of the aforementioned method embodiment.

[0103] It should be noted that each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The device embodiment described above is merely schematic, in which the unit described as a separate component may or may not be physically separated, and the component prompted as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative work.

[0104] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A tunnel diameter expansion construction method, characterized in that: The method comprises: Dig the target tunnel according to the preset path to obtain the tunnel section; Based on the tunnel section, drilling holes according to preset positions to obtain multiple hole positions; Explosives are loaded into the multiple hole positions, and blasting is performed in a preset sequence to obtain an expanded target tunnel.

2. The method according to claim 1, characterized in that After the target tunnel is excavated according to the preset path and the tunnel section is obtained, the following steps are also included: The tunnel section is reinforced with steel mesh and shotcrete, and steel arc supports are installed.

3. The method according to claim 1, characterized in that After the explosives are loaded into the plurality of holes and blasted in a preset order to obtain the expanded target tunnel, the method further includes: The expanded target tunnel is reinforced with concrete lining and reinforced with steel mesh and prestressed steel strands.

4. The method according to claim 1, characterized in that: The method comprises: loading explosives into the plurality of hole positions, and blasting the holes in a preset order to obtain an expanded target tunnel, including: The multiple holes are loaded with explosives, blasted in a preset order, crushed stone and fine dust after blasting are screened, and the screened crushed stone and fine dust are separated and transported to obtain an expanded target tunnel.

5. The method according to claim 1, characterized in that Before the target tunnel is excavated according to the preset path and the tunnel section is obtained, the following steps are also included: Acquiring geological data of the target tunnel; the geological data includes stratum structure, rock type or groundwater condition; Based on the geological data of the target tunnel, a preset path is determined.

6. A tunnel diameter expansion construction device, characterized in that: include: The tunnel excavation module is used to excavate the target tunnel according to the preset path to obtain the tunnel section; A tunnel drilling module, used for drilling holes according to preset positions based on the tunnel section to obtain multiple hole positions; The tunnel blasting module is used to load explosives into the multiple hole positions and perform blasting in a preset sequence to obtain an expanded target tunnel.

7. The device according to claim 6, characterized in that The device further comprises: a first reinforcement module; The first reinforcement module is used to reinforce the tunnel section by using a steel mesh and shotcrete method, and to install steel arc supports.

8. The device according to claim 6, characterized in that The device further comprises: a second reinforcement module; The second reinforcement module is used to reinforce the expanded target tunnel with concrete lining and arrange steel mesh and prestressed steel strands.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the program is executed by the processor, the tunnel diameter expansion construction method according to any one of claims 1 to 5 is implemented.

10. A processor, characterized in that: Used to run a computer program, which, when running, executes the tunnel diameter expansion construction method as described in any one of claims 1 to 5.

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