A directional drilling and injection integrated system suitable for tunnel geological disaster disposal

Abstract

The present application relates to a kind of directional drilling injection integrated system suitable for tunnel geological disaster disposal, including drilling injection equipment, including the drill bit connected with drill rod, drill rod is hollow structure and is equipped with the grouting hole being communicated with grouting pump, drill rod is equipped with stratum perception sensor and slurry sensor, respectively obtain rock mass parameter and grouting pressure parameter, send to control end for controlling the drilling operation and grouting operation of drilling injection equipment;Control end is configured as: according to the rock mass parameter obtained by stratum perception sensor, and the rock mass model and drill bit model constructed in advance, obtain matching drilling parameter to control drilling injection equipment.On drilling injection equipment, sensor is arranged to obtain rock mass parameter, by the model constructed in advance and the rock mass parameter obtained, obtain the drilling parameter matched with current rock mass, and drilling injection equipment is controlled with this drilling parameter, so that drilling injection equipment can quickly adapt to the rock mass of geological disaster influence area, it is favorable to the improvement of disaster disposal efficiency.

Description

Technical Field

[0001] This invention relates to the field of underground construction technology, specifically to an integrated directional drilling and injection system suitable for handling geological disasters in tunnels. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Underground space construction is susceptible to geological hazards, such as sudden water and mud inrushes, surface subsidence, and reservoir leakage. These hazards can bury construction equipment within the underground space. The inherent concealment of these hazards, coupled with limited space for post-disaster repairs and equipment shortages due to underground constraints, often leads to secondary casualties, repeated equipment burials, and project abandonment or rerouting. To address this issue, current technology utilizes drilling tools to penetrate the buried area, grouting to seal the points of water and mud inrushes, thus preventing the source of the geological disaster before continuing excavation to restore the construction work surface.

[0004] The inventors discovered that mud and water from geological disasters can affect the rock strata characteristics of underground spaces, resulting in a lack of safe and limited construction conditions for underground treatment. Furthermore, the drilling tools used for disaster relief are difficult to adapt to rock strata parameters quickly, leading to low drilling efficiency and affecting the progress of post-disaster relief. Summary of the Invention

[0005] To address the technical problems mentioned above, this invention provides an integrated directional drilling and injection system suitable for handling geological disasters in tunnels. Sensors are deployed on the drilling and injection equipment to acquire rock strata parameters. Through a pre-constructed drill bit model, a rock strata model, and the acquired rock strata parameters, drilling parameters matching the current rock strata are obtained. These drilling parameters are then used to control the drilling and injection equipment, enabling it to quickly adapt to the rock strata in the area affected by geological disasters, accelerating drilling efficiency, and improving disaster response efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The first aspect of the present invention provides an integrated directional drilling and injection system suitable for tunnel geological disaster management, comprising:

[0008] The drilling and grouting equipment includes a drill bit connected to a drill rod. The drill rod is a hollow structure and has a grouting hole connected to a grouting pump. The drill rod is equipped with a formation sensing sensor and a grout sensor to acquire rock formation parameters and grouting pressure parameters, respectively, and send them to the control terminal to control the drilling and grouting operations of the drilling and grouting equipment.

[0009] The control unit is configured to obtain matching drilling parameters based on the rock formation parameters acquired by the formation sensing sensor, as well as the pre-built rock formation model and drill bit model, in order to control the drilling equipment.

[0010] The drill pipe is equipped with a packer, which includes a base connected to the outer surface of the drill pipe and a cavity connected to the base; the drill pipe has a spring seat inside, which is elastically connected to the inner wall of the drill pipe by a spring, the spring is arranged along the axial direction of the drill pipe, and the spring seat is provided with a first channel; the base is provided with a second channel, and the cavity is connected to one end of the second channel.

[0011] When the spring is in a stretched state, the first channel and the second channel are separated; when the spring is in a compressed state, the axes of the first channel and the second channel coincide, so that the other end of the second channel is connected to the first channel. The grouting material can enter the cavity from the inside of the drill rod through the first channel and the second channel in sequence, causing it to expand and seal the borehole.

[0012] The drill pipe includes an intermediate casing and an inner casing that are fitted together with the outer drill pipe. From the outside to the inside, the drill pipe consists of an outer drill pipe, an intermediate casing, and an inner casing. The outer drill pipe is used for drilling operations, while the intermediate and inner casings serve as slurry channels.

[0013] The formation sensing sensor includes a transmitting antenna and a receiving antenna evenly arranged along the outer circumference of the drill pipe, with the transmitting antenna and the receiving antenna spaced at a predetermined distance along the axial direction of the drill pipe.

[0014] The grout sensor includes at least two sets, which are respectively installed at the connection between the drill bit and the drill pipe and on the outer wall of the drill pipe, and are used to obtain the grouting pressure and instantaneous grout flow rate.

[0015] The rock strata model is constructed based on information obtained from geological survey data, including rock strata density, elastic modulus, Poisson's ratio, cohesion, tensile strength, internal friction angle, dilatation angle, lithology, alternation of soft and hard rocks, and fault fracturing.

[0016] The rock strata model can assign values ​​to parameters such as density, elastic modulus, Poisson's ratio, cohesion, tensile strength, internal friction angle, and dilatation angle.

[0017] The drill bit model is constructed based on simulation software and is subjected to drilling pressure, rotational torque, axial impact dynamic load and torsional impact dynamic load respectively.

[0018] The drill bit model is a composite impact rock breaking model.

[0019] While keeping the formation parameters in the rock formation model constant, the drilling parameters are changed to output the rock breaking volume and the torque value of the drill bit under different drilling parameters. Based on the rock breaking efficiency and life of the drill bit, the optimal drilling parameters under different formation parameters are obtained.

[0020] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0021] Sensors are deployed on the drilling equipment to obtain rock strata parameters. By using a pre-built drill bit model, a rock strata model, and the acquired rock strata parameters, drilling parameters that match the current rock strata are obtained. These drilling parameters are then used to control the drilling equipment, enabling it to quickly adapt to the rock strata in areas affected by geological disasters, thus accelerating drilling efficiency and improving disaster response efficiency. Attached Figure Description

[0022] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0023] Figure 1 This is a schematic diagram of a directional drilling system for geological disaster management provided by one or more embodiments of the present invention;

[0024] Figure 2 This is a schematic diagram of the drilling and injection equipment structure provided in one or more embodiments of the present invention;

[0025] Figure 3 This is a schematic diagram of a rock-breaking drilling parameter optimization system provided in one or more embodiments of the present invention;

[0026] Figure 4(a) is a schematic diagram of the packer in the uninflated state of the bladder cavity provided by one or more embodiments of the present invention;

[0027] Figure 4(b) is a schematic diagram of the packer cavity under inflated state provided by one or more embodiments of the present invention;

[0028] Figure 5 This is a schematic diagram of the drill pipe cross-sectional structure provided in one or more embodiments of the present invention;

[0029] Figures 6(a)-6(b) These are all schematic diagrams of the formation sensing sensor provided in one or more embodiments of the present invention;

[0030] Figure 7 This is a schematic diagram of the slurry sensor structure provided in one or more embodiments of the present invention;

[0031] Figure 2 In the middle: 1. Drill bit; 2. Grouting pump; 3. Formation sensing sensor; 4. Grout sensor; 5. Drill rod; 6. Control terminal;

[0032] In Figure 4: 11 First channel; 12 Second channel; 13 Cyst cavity; 14 Spring;

[0033] Figure 5In the middle: 101 outer drill pipe; 102 intermediate casing; 103 inner casing;

[0034] In Figure 6: 31 is the transmitting antenna; 32 is the receiving antenna;

[0035] Figure 7 In the middle: 41 First slurry sensor; 42 Second slurry sensor 。 Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] As described in the background section, the mud and water that surge in from geological disasters can affect the rock strata characteristics of underground spaces, making it difficult for drilling tools used for disaster response to quickly adapt to the rock strata parameters. This results in low drilling efficiency and affects the progress of post-disaster response.

[0040] Therefore, the following embodiments present an integrated directional drilling and grouting system suitable for tunnel geological disaster management. This system combines advanced geological forecasting, rapid drilling, surface grouting, comprehensive evaluation, and directional drilling technology. By drilling directional boreholes on the surface and using three-pipe grouting technology to pump different grouting materials over long distances, it achieves proactive disaster management and prevention. In terms of disaster management, compared to in-tunnel grouting, it offers safer construction conditions. Furthermore, in terms of disaster prevention, the pre-grouting reinforcement technology facilitates adjustment of the grout setting time at the tunnel face, offering advantages such as easier disaster management and less delay in construction.

[0041] Example 1:

[0042] like Figure 1 As shown, a directional drilling and grouting integrated system suitable for tunnel geological disaster management includes a rapid and stable drilling system for complex strata, an ultra-long-distance drilling and grouting integrated system, an ultra-long-distance directional drilling and grouting sensing and prediction system, and a grouting effect detection system.

[0043] The rapid and stable drilling system for complex formations includes drilling equipment (in this embodiment, a screw motor drill bit is selected), a kilometer-level high-precision directional drilling and dynamic trajectory correction system, and an intelligent optimization system for drilling parameters.

[0044] In this embodiment, the structure of the drilling and injection equipment is as follows: Figure 2 As shown, 1 is the drill bit of the drilling rig; 2 is the grouting pump; 3 is the formation sensing sensor; 4 is the grout sensor; 5 is the drill rod; and 6 is the control terminal. The drill bit is a dual-purpose drill bit for both grouting and drilling. The drill bit is driven by the drill rod to achieve drilling. The grouting pump is connected to the grouting hole on the drill rod to pump in grout. The drill rod is equipped with a formation sensing sensor and a grout sensor, which respectively acquire formation information and grouting pressure information to control parameters such as drilling direction, force, and grouting pressure.

[0045] This screw motor drill bit possesses combined impact drilling capabilities during drilling, meaning it simultaneously performs axial impact and torsional impact functions. Axial impact allows for higher axial rock-breaking energy with lower drill pressure, while torsional impact eliminates the stick-slip effect of the drill pipe, enabling the drill bit to break rock directly without accumulating energy. The combination of these two features allows the drill bit to achieve excellent rock-breaking performance.

[0046] The kilometer-level high-precision directional drilling and trajectory dynamic correction system consists of a strong directional drilling rod suitable for complex strata and soil, and a real-time dynamic measurement instrument for trajectory parameters. The system can dynamically measure borehole trajectory data, and further through dynamic correction and composite directional trajectory control while drilling, it can complete large-angle directional drilling from horizontal to vertical, realizing path planning and optimization control of borehole trajectory.

[0047] The intelligent drilling parameter optimization system can match drilling parameters (drilling pressure, drill bit speed, torque, axial impact force, torsional impact force, impact frequency) with rock strata parameters (rock strength, lithology, alternation of soft and hard rocks, fault fracture zones, etc.), enabling different drilling parameters to be matched to different strata, thereby achieving rapid drilling under complex rock and soil conditions. Figure 3 As shown, the implementation process is as follows:

[0048] (1) Model parameter acquisition: Parameters such as density, elastic modulus, Poisson's ratio, cohesion, tensile strength, internal friction angle, dilatation angle, lithology, alternation of soft and hard rocks, and fault fracture zones are obtained from geological survey data.

[0049] (2) Constructing a composite impact drill bit-rock stratum model: Using GDEM software and based on the continuous-discontinuous analysis method, a composite impact rock breaking model is constructed. This model consists of two main parts: the drill bit model and the rock stratum model. The drill bit model is subjected to drilling pressure, rotational torque, axial impact dynamic load, and torsional impact dynamic load, and its parameters can be dynamically adjusted. The rock stratum model allows for the assignment of parameters such as density, elastic modulus, Poisson's ratio, cohesion, tensile strength, internal friction angle, and dilatation angle.

[0050] (3) Model results output and intelligent optimization ensure that the formation parameters remain unchanged. The drilling parameters (drilling pressure, drill bit speed, torque, axial impact force, torsional impact force, impact frequency) are changed accordingly. The rock breaking volume and the torque value of the drill bit under different drilling parameters are output accordingly. Combined with the rock breaking efficiency and life of the drill bit, the optimal drilling parameters under different formation parameters are obtained.

[0051] In this embodiment, the rock-breaking efficiency can be determined by the rock-breaking volume; the larger the rock-breaking volume, the higher the rock-breaking efficiency. The service life of the drill bit can be analyzed by the drill bit torque value; if the drill bit is under high torque for a long time, it will definitely have an adverse effect on its working life.

[0052] In this embodiment, the drilling parameters are determined based on the torque output curve of the drill bit. The parameters with relatively small torque and relatively large rock breaking volume are selected from the curve. This is more beneficial for improving drilling efficiency and extending the service life of the drill bit.

[0053] The ultra-long-distance drilling and grouting integrated system includes a packer connected to the drill pipe and a grouting pump 2, such as... Figures 4(a)-4(b) As shown, the packer includes a base connected to the outer surface of the drill pipe and a cavity 13 connected to the base. The drill pipe is a hollow structure with a spring seat inside. The spring seat is elastically connected to the inner wall of the drill pipe through a spring 14, which is arranged along the axial direction of the drill pipe. The spring seat 14 has a first channel 11. The base has a second channel 12, and the cavity 13 is connected to one end of the second channel 12. When the spring 14 is in a stretched state, the first channel 11 and the second channel 12 are separated. When the spring 14 is in a compressed state, the axes of the first channel 11 and the second channel 12 coincide, so that the other end of the second channel 12 is connected to the first channel 11. The grouting material can enter the cavity 13 from the inside of the drill pipe through the first channel 11 and the second channel 12, causing it to expand and seal the borehole, creating conditions for subsequent grouting. The grouting pump 2 can pump the grouting material to the disaster source where the drill bit and drill pipe are located, realizing the control of the sudden water inrush disaster.

[0054] Before grouting, due to the low pressure inside the pipe cavity, spring 14 is in a stretched state, and the first channel 11 and the second channel 12 are separated. When preparing for grouting, the grouting pump is turned on, further increasing the pressure inside the pipe cavity. Spring 14 is compressed, and at the same time, it moves the spring seat towards the drill bit 1, causing the first channel 11 and the second channel 12 to overlap. At this time, the liquid inside the pipe cavity enters the bladder 13 through the overlapped first channel 11 and second channel 12. The bladder 13 further expands to seal the borehole, further realizing the injection of grout material.

[0055] like Figure 5 As shown, the drill rod 5 is a three-tube sleeve grouting structure, namely, from the outside to the inside, it consists of an outer drill rod 101, a middle sleeve 102, and an inner sleeve 103. The outer drill rod 101 is used for drilling operations, while the middle sleeve 102 and the inner sleeve 103 are grout channels. Different grout materials can be injected through the middle sleeve 102 and the inner sleeve 103 respectively. This structure can realize the synchronous injection of different grouting materials.

[0056] Ultra-long-distance directional drilling and injection sensing and prediction system, such as Figures 6(a)-6(b) As shown, it consists of a transmitting antenna 31 and a receiving antenna 32 fixed near the drill bit 1. The transmitting antenna is three dipole antennas arranged at 120° intervals. The distance between the receiving antenna 32 and the transmitting antenna 31 is a fixed value. The transmitting antenna 31 can transmit electromagnetic waves around the drill bit 1.

[0057] In this embodiment, the transmitting antenna 31 is located on the drill rod and close to the drill bit 1, while the receiving antenna 32 is on the drill rod and far away from the drill bit 1. The transmitting antenna 31 transmits electromagnetic waves to the surrounding rock layers. The electromagnetic waves pass through the rock layers near the drill bit 1 and are received by the receiving antenna 32. The electromagnetic waves carry rock parameter information as they pass through the rock.

[0058] This embodiment is equipped with three sets of transmitting antennas 31 and receiving antennas 32, which can acquire geological information at all angles of the drill bit 1 when the drill rod 5 rotates.

[0059] The grouting effect detection system includes sensors installed at the grouting end of drill bit 1, such as... Figure 7 As shown, in this embodiment, a first grout sensor 41 is installed at the root of the drill bit 1, and a second grout sensor 42 is installed on the outer wall of the drill rod 5. The two sensors are arranged near the grouting hole and can provide grouting data such as grouting pressure and instantaneous grout flow rate. By monitoring the grouting data, it can be determined whether the grouting effect meets the specified composite requirements.

[0060] The system works as follows:

[0061] (1) As follows Figure 2 The drilling equipment shown was moved to a safe and stable location, and the equipment was tested in advance.

[0062] (2) Determine the drilling direction based on the location of the disaster source and the current position of the drilling equipment, start the drilling equipment, and begin drilling into the soil and rock layer. The drill bit has both axial impact and torsional impact functions, which can achieve multi-dimensional rapid rock breaking.

[0063] (3) During drilling, the drilling formation parameters are obtained in advance through geological survey and design data. The formation parameters are matched with the drilling parameters through the intelligent optimization system for drilling parameters. The drilling parameters are further optimized for different geological conditions to improve drilling efficiency and extend the life of the drill bit.

[0064] (4) During the continuous drilling process, the directional drilling rod has a certain curvature. When the drill bit rotates but the directional drilling rod does not rotate, the drilling trajectory is in a non-directional stable drilling state; when both the drill bit and the directional drilling rod rotate, the drilling trajectory is in a directional drilling state. The trajectory can be accurately measured by a dynamic measuring instrument for trajectory parameters, ensuring that the drilling trajectory does not deviate from the design trajectory.

[0065] Figure 2 In the drilling equipment shown, drill rod 5 is a conventional drill rod, and drill bit 1 is at the front of drill rod 5. It is equipped with a screw motor drill rod and a non-magnetic positioning drill rod to form a drill rod with directional drilling function.

[0066] (5) Once the drill bit reaches the pre-designed target point, the packer at the end of the screw motor can be controlled to operate, creating conditions for grouting. Before grouting, due to the low pressure inside the pipe, spring 14 is in a stretched state, and the first channel 11 and the second channel 12 are separated. When preparing for grouting, the grouting pump is turned on, the pressure inside the pipe increases further, spring 14 is compressed, and at the same time, pipe 1 moves towards the drill bit, until the first channel 11 and the second channel 12 overlap. The liquid inside the pipe enters the bladder 13 through the overlapping first channel 11 and second channel 12. The bladder 13 further expands to seal the borehole, further realizing the injection of grout material. Different grout materials can be injected through... Figure 5 The structure shown is used for injection drilling.

[0067] In this embodiment, the grouting hole on the drill rod is opened at the root of the drill bit 1, that is, at the connection point between the drill bit 1 and the drill rod 5. The bladder 13 is located at a distance from the connection point. After the bladder 13 expands and seals the borehole, the borehole will form a closed chamber, and the grouting material enters the chamber from the grouting hole on the drill rod.

[0068] After the bladder cavity 13 expands, it seals the borehole, preventing grout from flowing back out during grouting. Once grouting is complete, the pressure is reduced, and the bladder cavity 13 returns to its original state, allowing the drill rod and drill bit to be easily extracted from the borehole. The expansion of the bladder cavity prepares for grouting; once grouting is complete, the disaster response is considered finished. Currently, most disasters such as sudden water inrushes are addressed through grouting reinforcement.

[0069] (6) Throughout the drilling and grouting process, the ultra-long-distance drilling and grouting data real-time interaction and intelligent decision-making system will continuously transmit drilling data and grouting data.

[0070] (7) During the drilling process, the real-time drilling process monitoring system monitors the drilling speed, torque, vibration, noise and other parameters of the drill bit. The ground-penetrating radar transmitting antenna emits electromagnetic waves during the rotation around the drill bit axis, and the receiving antenna collects the reflected information.

[0071] (8) Since the drill bit drills in different rock strata and different geological structures, the drilling parameters are different. Before the ultra-long distance directional drilling equipment is put into operation, in-situ tests can be carried out to establish a database of matching relationship between the actual geological conditions of the project and the drilling parameters. Based on the drilling parameters of the drill bit in different rock types and strata, various rock mechanical parameters (rock uniaxial compressive strength, triaxial compressive strength, tensile strength, pore pressure, cohesion, friction angle, etc.) and rock mass structure (fractures, cavities, rock layer interfaces, etc.) can be predicted to achieve intelligent identification of geological conditions near the drill bit.

[0072] (9) During the drilling process, geological information can be predicted within a certain range by interpreting and analyzing the geological information detected by the radar array.

[0073] (10) In terms of grouting effect detection, the grouting channel resistance sensor can monitor the resistivity difference rate inside and outside the grouting channel in real time. After grouting, the resistivity value of the rock layer composed of concrete and filling material in the soil is significantly higher than that of the original filling material before grouting. By deploying the grouting channel resistance sensor based on the resistivity difference of the rock, the power supply distance is adjusted sequentially at the observation point to gradually increase the test depth. The grouting effect is evaluated based on the resistivity change from shallow to deep along the vertical direction at the observation point.

[0074] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A directional drilling and injection integrated system suitable for tunnel geological disaster management, characterized in that, include: The drilling and grouting equipment includes a drill bit connected to a drill rod. The drill rod is hollow and has a grouting hole communicating with a grouting pump. The drill rod is equipped with a formation sensing sensor and a grout sensor to acquire rock formation parameters and grouting pressure parameters, respectively, and send them to a control terminal to control the drilling and grouting operations of the drilling and grouting equipment. The formation sensing sensor includes a transmitting antenna and a receiving antenna evenly arranged along the outer circumference of the drill rod, with the transmitting and receiving antennas spaced at a predetermined distance along the axial direction of the drill rod. The grout sensor includes at least two sets, respectively installed at the connection between the drill bit and the drill rod and on the outer wall of the drill rod, for acquiring grouting pressure and instantaneous grout flow rate. The control end is configured to obtain matching drilling parameters based on the rock strata parameters acquired by the strata sensing sensors, as well as the pre-built rock strata model and drill bit model, in order to control the drilling equipment. While keeping the formation parameters in the rock formation model constant, the drilling parameters are changed respectively, and the rock breaking volume and the torque value of the drill bit under different drilling parameters are output accordingly. Based on the rock breaking efficiency and life of the drill bit, the optimal drilling parameters under different formation parameters are obtained. The drill pipe is equipped with a packer, which includes a base connected to the outer surface of the drill pipe and a cavity connected to the base; the drill pipe has a spring seat inside, which is elastically connected to the inner wall of the drill pipe by a spring, the spring is arranged along the axial direction of the drill pipe, and the spring seat is provided with a first channel; the base is provided with a second channel, and the cavity is connected to one end of the second channel; When the spring is in a stretched state, the first channel and the second channel are separated; when the spring is in a compressed state, the axes of the first channel and the second channel coincide, so that the other end of the second channel is connected to the first channel, and the grouting material can enter the cavity from the inside of the drill rod through the first channel and the second channel in sequence to expand and seal the borehole. The drill rod includes an intermediate casing and an inner casing that are sleeved with the outer drill rod. From the outside to the inside, the drill rod consists of an outer drill rod, an intermediate casing, and an inner casing. The outer drill rod is used for drilling operations, while the intermediate and inner casings serve as grout channels. The intermediate and inner casings are used to transport different grouting materials, which are kept separate within the drill rod and transported independently to the target grouting location.

2. The directional drilling and injection integrated system for tunnel geological disaster management as described in claim 1, characterized in that, The rock strata model is constructed based on information obtained from geological survey data, including rock strata density, elastic modulus, Poisson's ratio, cohesion, tensile strength, internal friction angle, dilatation angle, lithology, alternation of soft and hard rocks, and fault fracturing.

3. The directional drilling and injection integrated system for tunnel geological disaster management as described in claim 2, characterized in that, The rock strata model can assign values ​​to parameters such as density, elastic modulus, Poisson's ratio, cohesion, tensile strength, internal friction angle, and dilatation angle.

4. The directional drilling and injection integrated system for tunnel geological disaster management as described in claim 1, characterized in that, The drill bit model is constructed based on simulation software and is subjected to drilling pressure, rotational torque, axial impact dynamic load and torsional impact dynamic load respectively.

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