Intelligent grouting reinforcement device for red layer engineering and grouting process monitoring method

Abstract

This invention relates to the field of engineering geological reinforcement technology, specifically disclosing an intelligent grouting reinforcement device and grouting process monitoring method for red bed engineering. The device includes a grouting pump, a porous grouting pipe, a pressure sensor, and an intelligent control module. The porous grouting pipe is made of corrosion-resistant material, with spirally staggered grouting holes on its sidewall. Filters are installed inside / at the holes. One end of the pipe is a closed end with a guide cone, and the other end is a pump connection end. The pressure sensor is embedded in the pipe wall, collecting pressure data in real time and transmitting it wirelessly. After receiving the data, the intelligent control module adjusts the grouting pump parameters through data processing, execution control, and alarm units, triggering an alarm in case of abnormalities. The monitoring method continuously collects data through the pressure sensor, and the intelligent control module determines thresholds and dynamically adjusts the system. This invention achieves full-process intelligent grouting, improving the stability and safety of red bed engineering and providing data reference for subsequent similar projects.

Description

Technical Field

[0001] This invention relates to the field of engineering geological reinforcement technology, and in particular to an intelligent grouting reinforcement device and a grouting process monitoring method for red bed engineering. 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] In the field of engineering geological reinforcement technology, construction activities related to red bed engineering cover multiple important areas such as tunnel excavation, slope protection, and foundation excavation. Red bed rock masses generally have unique material composition and structural characteristics. Their soft rock components are easily weathered and disintegrated by the external environment, and the internal pores of the rock mass are well-developed and highly interconnected, posing a potential impact on the stability of engineering structures. Grouting reinforcement technology, as a key means to improve the mechanical properties of red bed rock masses, works by injecting grout into the strata. The grout fills and cements the pores in the rock mass, thereby improving the overall strength and impermeability of the rock mass. As the field of engineering construction continues to expand into red bed areas with complex geological conditions, the application scenarios of grouting reinforcement technology are continuously expanding. The industry is paying increasing attention to the research and development of efficient grouting technologies that can adapt to the geological characteristics of red beds, and intelligent and precise technologies are gradually becoming important development trends in grouting reinforcement technology.

[0004] Traditional grouting reinforcement devices and methods currently used in red bed engineering have revealed numerous technical limitations that urgently need to be addressed during actual construction. Traditional grouting devices mostly rely on manual control, with adjustments to key parameters such as grouting pressure and grout delivery rate depending entirely on the operator's on-site experience, making precise control of the grouting process difficult. Due to the lack of real-time and effective ground response monitoring methods, construction personnel cannot promptly grasp the diffusion state of the grout in the red bed strata or the stress changes within the strata, easily leading to a mismatch between grouting pressure and the actual bearing capacity of the strata. Simultaneously, the structural design of traditional grouting pipes is inadequate, with a relatively simple distribution of grouting holes, making it difficult to achieve omnidirectional and uniform grout diffusion in the red bed strata. This results in uneven strength in the reinforced rock mass, failing to form a stable overall reinforced structure. Furthermore, the traditional grouting process lacks a systematic parameter recording and feedback mechanism, failing to provide referable technical references for subsequent similar projects, thus limiting the further development and application of grouting reinforcement technology in the field of red bed engineering. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an intelligent grouting reinforcement device and grouting process monitoring method for red bed engineering, which solves problems such as low grouting efficiency, uneven grout distribution, and inability to adjust parameters in real time in existing technologies. This invention achieves intelligent and efficient grouting process, and improves the stability and safety of red bed engineering.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides an intelligent grouting reinforcement device for red-bed engineering.

[0007] A smart grouting reinforcement device for red bed engineering includes a grouting pump, a porous grouting pipe, a pressure sensor, and a smart control module; Includes grouting pump, multi-hole grouting pipe, pressure sensor and intelligent control module; The outlet end of the grouting pump is connected to one end of the porous grouting pipe, which is used to deliver grout to the red strata. The porous grouting pipe includes a pipe body and multiple grouting holes. The pipe body is made of corrosion-resistant material. The multiple grouting holes are opened on the side wall of the pipe body and are distributed in a spiral staggered manner along the axial direction of the pipe body. Each grouting hole is equipped with a filter screen inside or at the opening. The pressure sensor is installed on the porous grouting pipe to collect pressure data in real time during the grouting process; The intelligent control module is communicatively connected to the pressure sensor and electrically connected to the grouting pump. It receives the pressure data output by the pressure sensor and dynamically adjusts the operating parameters of the grouting pump based on the pressure data, so that the grout forms a uniform diffusion network in the red strata through the spirally staggered grouting holes.

[0008] In one implementation of the first aspect of the present invention, the spatial differences in the degree of development of red layer fractures are identified based on the received multi-point pressure data, and the output pressure and flow rate of the grouting pump are dynamically adjusted so that the grout preferentially fills the low-resistivity fracture area. Through the spiral staggered grouting hole structure with decreasing pore size, a gradient diffusion and uniform penetration reinforcement network is formed in the red layer that is prone to mudification when exposed to water, thereby suppressing local over-grouting and pipeline blockage.

[0009] In one implementation of the first aspect of the present invention, the porous grouting pipe includes a pipe body and a plurality of grouting holes. The pipe body is made of a corrosion-resistant material, and the plurality of grouting holes are opened on the side wall of the pipe body and are distributed in a spiral staggered manner along the axial direction of the pipe body. A filter screen is provided in the grouting hole or at the opening.

[0010] As a further limitation of the first aspect of the invention, the pipe body is made of corrosion-resistant material, with an outer diameter ranging from 40 mm to 100 mm and a wall thickness ranging from 3 mm to 8 mm; the diameter of the plurality of grouting holes ranges from 5 mm to 15 mm. The axial spacing between two adjacent rings of grouting holes ranges from 100 mm to 200 mm, and the number of grouting holes in each ring ranges from 4 to 8.

[0011] In one implementation of the first aspect of the present invention, the pressure sensor includes a pressure detection unit and a wireless data transmission unit; The pressure detection unit is embedded in the wall of the porous grouting pipe to detect the pressure inside the pipe; The wireless data transmission unit is electrically connected to the pressure detection unit and is used to wirelessly transmit the pressure data detected by the pressure detection unit to the intelligent control module.

[0012] In one implementation of the first aspect of the present invention, the intelligent control module includes a data processing unit, an execution control unit, and an alarm unit; The data processing unit is communicatively connected to the pressure sensor and is used to receive and parse the pressure data sent by the pressure sensor. The execution control unit is electrically connected to the grouting pump and is used to generate control commands based on the pressure data parsed by the data processing unit, and send the control commands to the grouting pump to adjust its operating parameters; The alarm unit is connected to the data processing unit and is used to issue a warning signal when the data processing unit determines that the pressure data exceeds a preset threshold.

[0013] In one implementation of the first aspect of the present invention, a slurry mixer is further included, wherein the outlet of the slurry mixer is connected to the inlet of the grouting pump for supplying the prepared slurry to the grouting pump.

[0014] In one implementation of the first aspect of the present invention, a positioning bracket is further included, which is sleeved on the outer periphery of the porous grouting pipe and is used to fix the porous grouting pipe at a predetermined depth position in the red layer borehole.

[0015] In one implementation of the first aspect of the present invention, the end of the porous grouting pipe away from the grouting pump is a closed end, and the closed end is provided with a guide cone for guiding the porous grouting pipe to be inserted into the red layer borehole.

[0016] Secondly, the present invention provides a method for monitoring the grouting process in red-bed engineering.

[0017] A method for monitoring the grouting process in red-bed engineering, applied to the intelligent grouting reinforcement device of the first aspect of the present invention, includes the following process: Pressure data during the grouting process is continuously collected by a pressure sensor installed on a porous grouting pipe. The pressure data collected by the pressure sensor is transmitted to the intelligent control module; The intelligent control module determines whether the pressure data exceeds the preset threshold. When the intelligent control module determines that the pressure data exceeds the preset threshold, it triggers the alarm unit to issue a warning signal and sends an adjustment command to the grouting pump to adjust its operating parameters.

[0018] Compared with the prior art, the beneficial effects of the present invention are: Traditional construction relies on manual experience to set parameters, often resulting in unbalanced grouting pressure and uneven grout diffusion due to the inability to perceive dynamic changes in the strata. This solution, however, utilizes a spiral grouting hole design in a multi-hole grouting pipe with an internal filter, along with pressure sensors embedded in the pipe wall, to capture the pressure inside the pipe and the strata response in real time. After receiving the data, the intelligent control module automatically adjusts the operating parameters of the grouting pump, preventing excessive pressure from fracturing the strata or insufficient pressure from causing inadequate reinforcement. At the same time, it ensures that the grout diffuses evenly in the pores of the red bed, effectively solving the problems of uneven reinforcement strength and susceptibility to weathering debris in traditional construction. This transforms grouting reinforcement from "experience-based judgment" to "precise control," significantly improving the overall stability of the red bed rock mass.

[0019] During construction, the data acquisition module continuously acquires information such as pressure and ground response, the control and regulation module analyzes the data and generates optimal parameters through built-in algorithms, the monitoring and feedback module visualizes the grouting effect in real time, and the data storage module records the parameters of the entire process to form a database. This closed-loop management model not only solves the problems of lack of real-time monitoring and delayed parameter adjustment in traditional construction, but also provides a reusable reference for subsequent similar red bed projects. Compared with the traditional construction model of "construction-problem discovery-passive remediation", this solution can predict ground changes in advance, dynamically optimize grouting strategies, reduce material waste and rework costs, and make red bed grouting construction have traceable and optimizable intelligent characteristics.

[0020] Red bed rock masses are prone to weathering, disintegration upon contact with water, and may contain abundant water. In this invention, the porous grouting pipe is made of corrosion-resistant material to resist acid and alkali corrosion in the red bed. The guide cone at the closed end of the pipe facilitates precise positioning in complex red bed boreholes, while the positioning bracket ensures stable grouting depth. Combined with a grout mixer adapted to the characteristics of the red bed and a possible coordinated design of dewatering and grouting (adapted to water-rich red beds), the solution can effectively address the reinforcement needs of red beds under different working conditions. Whether it is tunnel excavation, slope protection, or foundation excavation, the solution can dynamically adjust to adapt to changes in red bed geology, avoiding reinforcement failure caused by poor geological adaptability of traditional devices. This provides reliable technical support for various red bed projects, improving construction safety and engineering durability.

[0021] Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. 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 A schematic diagram of an intelligent grouting reinforcement device for red-layer engineering provided as an exemplary embodiment of the present invention; Figure 2 A schematic diagram of system composition is provided for an exemplary embodiment of the present invention; Figure 3 A flow chart of the grouting process provided for an exemplary embodiment of the present invention; The components include: 1. Pipe body; 2. Grouting hole; 3. Filter screen; 4. Sealing end; 5. Pump connection end; 100. Data acquisition module; 200. Control and adjustment module; 300. Monitoring and feedback module; 400. Data storage module. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] 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.

[0026] This embodiment describes the practical application of an intelligent grouting reinforcement device for red-bed engineering, detailing the device assembly and debugging process, system operation mechanism, technical effects, and construction precautions. It aims to provide directly applicable operational guidance for grouting reinforcement construction in red-bed tunnels, slopes, and foundation excavations. Figure 1 As shown, the intelligent grouting reinforcement device for red layer engineering includes a pipe body 1, grouting hole 2, filter screen 3, sealing end 4, and pump connection end 5.

[0027] In this implementation, the pipe body 1 is typically made of cylindrical seamless steel pipe or high-strength plastic pipe such as PVC / HDPE. Corrosion-resistant materials are preferred, such as stainless steel (304 or 316 grade to resist possible acid or salt corrosion in the red strata), galvanized steel, or chemically resistant engineering plastics, ensuring long-term stability and no failure in the moist, chemically active red strata environment. One end of the pipe body 1 is closed (or equipped with a grout stop valve), and the other end is connected to the grouting pump. The diameter of the multiple grouting holes 2 is typically 5-15mm (commonly 8-12mm) to ensure smooth grout ejection without excessive pressure loss. The holes are evenly distributed, with common arrangements including: one ring every 100-200mm along the pipe axis, with 4-8 holes per ring, staggered to ensure 360° omnidirectional injection. This uniform multi-point design facilitates the formation of uniform "bubbles" or diffusion networks of grout in the red strata, achieving multi-point injection and improving the uniformity and efficiency of reinforcement. Filter screen 3 is installed in each grouting hole (or covers the hole opening). The material is mostly stainless steel wire mesh, nylon mesh or synthetic fiber mesh, with a mesh size of 0.1-1mm (commonly 0.3-0.5mm) to effectively filter fine particles (such as clay particles and weathered debris) in the red layer.

[0028] In this implementation, specifically, the pipe body 1 of the porous grouting pipe is made of corrosion-resistant materials such as 304 grade stainless steel and chemically resistant HDPE. The outer diameter of the pipe body 1 is controlled between 40mm and 100mm, and the wall thickness is between 3mm and 8mm. One end of the pipe body 1 is stamped and sealed to form a sealing end 4. A guide cone is welded to the outside of the sealing end 4. The cone angle of the guide cone is designed to be 60° to guide the porous grouting pipe to be smoothly inserted into the red layer borehole. The other end of the pipe body 1 is processed into a pump connection end 5, with a flange connection interface for seamless connection with the output end of the grouting pump to ensure no leakage during the grout delivery process.

[0029] During the processing of the sidewall of the pipe body 1, a ring of grouting holes 2 is opened every 100mm to 200mm along the axial direction of the pipe body 1, with 4 to 8 grouting holes 2 in each ring. The hole diameter is 5mm to 15mm. All grouting holes 2 are arranged in a spiral staggered pattern to ensure that the grout can be injected into the red strata in all directions (360°) along the pipe body 1. A filter screen 3 is embedded in the inner wall of each grouting hole 2. The filter screen 3 is made of stainless steel wire mesh or nylon mesh with a mesh size of 0.1mm to -1mm. The edge of the filter screen 3 is tightly fitted to the inner wall of the grouting hole 2, covering the entire inner area of ​​the hole opening. It is used to filter out impurities such as clay particles and weathered debris in the red strata, preventing particles from entering the pipe body 1 and causing blockage of the grouting hole 2 or failure of the grouting pump. After the filter screen 3 is installed, the positioning bracket is placed at the preset depth position of the pipe body 1. The positioning bracket adopts a telescopic claw structure, and anti-slip teeth are set on the outside of the claw to fix the multi-hole grouting pipe at the predetermined depth in the red layer borehole and prevent the pipe body 1 from shifting during the grouting process.

[0030] After the porous grouting pipe is assembled, its pump connection end 5 is connected to the outlet of the grouting pump via a flange. Simultaneously, the outlet of the grout mixer is connected to the inlet of the grouting pump, forming a complete grout delivery path. Next, the pressure sensor is installed and debugged. The pressure detection unit is embedded inside the wall of the porous grouting pipe, with the detection end close to the inner wall of the pipe body 1, ensuring accurate acquisition of grout pressure data within the pipe. The wireless data transmission unit is electrically connected to the pressure detection unit and installed in a protective box on the outside of the pipe body 1. Then, a communication connection is established between the wireless data transmission unit and the intelligent control module. The stability and accuracy of the data transmission are repeatedly tested to ensure that the pressure data is received without delay or loss.

[0031] After the equipment is assembled and debugged, the system can be started to carry out grouting construction in the red strata. Before construction, the multi-hole grouting pipe is slowly inserted into the red strata borehole through the guide cone, and its depth is fixed by the claw structure of the positioning bracket to ensure that the length of the grouting section meets the design requirements; the grout mixer is started to prepare cement-based or chemical grout according to the geological characteristics of the red strata to meet the reinforcement needs of different strata.

[0032] like Figure 2 The diagram illustrates the specific grouting process. The process begins with data acquisition, followed by pressure monitoring, parameter adjustment, and then grouting. After grouting, the process enters a feedback phase, where the effectiveness is assessed. If the effectiveness is normal, the process proceeds to data recording, ending the process. If the effectiveness is abnormal, the process moves to parameter adjustment, where pressure is assessed. If pressure is abnormal, an alarm is triggered, ending the process. If pressure is normal, the process returns to the feedback phase to further assess effectiveness and follow subsequent procedures.

[0033] After the system starts, such as Figure 3 As shown, the grouting pump delivers grout to the porous grouting pipe. The data acquisition module 100 then begins operation. Its pressure sensor employs a high-precision pressure detection unit with a measurement range of 0-10 MPa and an accuracy of ±0.5%. It wirelessly acquires real-time pressure data within the pipe and formation response data, sending the data to the data acquisition module. The data acquisition module then synchronously transmits this data to the control and regulation module 200. The data processing unit then calls the real-time formation permeability calculation algorithm, combined with the real-time flow rate of the grouting pump. slurry dynamic viscosity Length of grouting section Grouting affects cross-sectional area and grouting pressure difference Through formula The current formation permeability was calculated. .

[0034] Based on real-time penetration rate The data processing unit calls the dynamic correction algorithm for grouting pressure threshold, combined with the grouting depth. Calculate depth correction factor Then through the formula Dynamically corrected pressure threshold ,in, This is a permeability correction factor; and this threshold is... The data is transmitted to the alarm unit as the basis for determining abnormal pressure. If the collected pressure data exceeds... For example, when the pressure exceeds 5MPa, the alarm unit immediately issues an audible and visual warning, and at the same time triggers the control execution unit to take action.

[0035] After receiving the pressure threshold data, the control execution unit calls the optimal speed calculation algorithm for the grouting pump, combined with the pressure difference. Grouting pump efficiency Through formula Calculate the optimal speed of the grouting pump ,in, Baseline penetration rate ( ), The reference speed (rpm) of the grouting pump is used to adjust its operating parameters. The pump speed can be precisely adjusted within the range of 0-1000 rpm, achieving a precise match between the grout flow rate and the formation's absorption capacity. At this time, the grout enters the pipe body 1 through the pump connection end 5 of the porous grouting pipe. Under pressure, it is ejected through the spirally distributed grouting holes 2. The filter screen 3 effectively blocks impurities from the red bed from entering the pipe body 1, while the spirally distributed grouting holes 2 ensure that the grout forms a uniform diffusion network in the red bed strata, enhancing the reinforcement effect.

[0036] During the grouting process, the data processing unit will also call the real-time prediction algorithm for grout diffusion radius in real time, combined with the grouting time. Porosity of red strata Through formula Calculate the grout diffusion radius of each grouting hole 2. These data are then transmitted to the monitoring and feedback module 300. The monitoring and feedback module 300, based on an LCD display, visualizes the grouting depth and pressure curves, simultaneously presenting the grout diffusion radius data for each grouting hole 2, and supports manual intervention by operators to adjust grouting parameters. If the diffusion radius of a certain grouting hole 2... If the design value is not reached, the system will automatically trigger the optimal speed algorithm of the grouting pump, recalculate and adjust the speed to ensure that the grout diffusion range covers the target reinforcement area.

[0037] Meanwhile, the data processing unit calculates the diffusion radius of each grouting hole 2. Calculate the average value Then through the formula Obtain the grouting uniformity coefficient .like The intelligent control module will automatically adjust the grout distribution ratio of grouting hole 2 or appropriately extend the grouting time to ensure that the grout diffuses evenly in the red strata and forms a stable reinforcement structure.

[0038] As the grouting process nears completion, the data processing unit invokes the grouting termination determination algorithm to monitor the diffusion radius growth rate in real time. Uniformity coefficient And whether the pressure data is at Within the interval, using the formula Determine the grouting termination time When the termination conditions are met, the intelligent control module immediately sends a stop command, the grouting pump stops running, and the data storage module 400 synchronously records all parameters of this grouting operation, including permeability. Pressure threshold diffusion radius The database for grouting in red-layer engineering is established, including parameters such as grouting pump speed, and supports USB export and historical data comparison and analysis, providing a reference for subsequent similar projects.

[0039] This device demonstrates significant technical advantages in practical applications. Compared with traditional manual grouting devices, it significantly improves grouting efficiency and maintains a relatively stable grout distribution uniformity coefficient U. It effectively solves the technical problems of difficulty in real-time adjustment of grouting pressure and uneven grout distribution in red bed soft rock, and significantly improves the stability and safety of red bed projects.

[0040] 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. An intelligent grouting reinforcement device for red-bed engineering, characterized in that, Includes grouting pump, multi-hole grouting pipe, pressure sensor and intelligent control module; The outlet end of the grouting pump is connected to one end of the porous grouting pipe, which is used to deliver grout to the red strata; The porous grouting pipe includes a pipe body and multiple grouting holes. The pipe body is made of corrosion-resistant material. The multiple grouting holes are opened on the side wall of the pipe body and are spirally staggered along the axial direction of the pipe body. Each grouting hole is provided with a filter screen inside or at the opening. The pressure sensor is installed on the porous grouting pipe to collect pressure data in real time during the grouting process. The intelligent control module is communicatively connected to the pressure sensor and electrically connected to the grouting pump. It is used to receive the pressure data output by the pressure sensor and dynamically adjust the operating parameters of the grouting pump based on the pressure data, so that the grout forms a uniform diffusion network in the red strata through the spirally staggered grouting holes.

2. The intelligent grouting reinforcement device for red-bed engineering as described in claim 1, characterized in that, Based on the received multi-point pressure data, the spatial differences in the development degree of red layer fractures are identified, and the output pressure and flow rate of the grouting pump are dynamically adjusted so that the grout preferentially fills the low-resistivity fracture area. Through the spiral staggered grouting hole structure with decreasing pore size, a gradient diffusion and uniform penetration reinforcement network is formed in the red layer that is prone to mudification when exposed to water, thereby suppressing local over-grouting and pipeline blockage.

3. The intelligent grouting reinforcement device for red-bed engineering as described in claim 1, characterized in that, The porous grouting pipe includes a pipe body and multiple grouting holes. The pipe body is made of corrosion-resistant material. The multiple grouting holes are opened on the side wall of the pipe body and are spirally staggered along the axial direction of the pipe body. A filter screen is provided in each grouting hole or at the hole opening.

4. The intelligent grouting reinforcement device for red-bed engineering as described in claim 2, characterized in that, The pipe body is made of corrosion-resistant material, with an outer diameter ranging from 40 mm to 100 mm and a wall thickness ranging from 3 mm to 8 mm; the diameter of the plurality of grouting holes ranges from 5 mm to 15 mm. The axial spacing between two adjacent rings of grouting holes ranges from 100 mm to 200 mm, and the number of grouting holes in each ring ranges from 4 to 8.

5. The intelligent grouting reinforcement device for red-bed engineering as described in claim 1, characterized in that, The pressure sensor includes a pressure detection unit and a wireless data transmission unit; The pressure detection unit is embedded in the wall of the porous grouting pipe and is used to detect the pressure inside the pipe. The wireless data transmission unit is electrically connected to the pressure detection unit and is used to wirelessly transmit the pressure data detected by the pressure detection unit to the intelligent control module.

6. The intelligent grouting reinforcement device for red-bed engineering as described in claim 1, characterized in that, The intelligent control module includes a data processing unit, an execution control unit, and an alarm unit; The data processing unit is communicatively connected to the pressure sensor and is used to receive and parse the pressure data sent by the pressure sensor. The execution control unit is electrically connected to the grouting pump and is used to generate control commands based on the pressure data parsed by the data processing unit, and send the control commands to the grouting pump to adjust its operating parameters. The alarm unit is connected to the data processing unit and is used to issue a warning signal when the data processing unit determines that the pressure data exceeds a preset threshold.

7. The intelligent grouting reinforcement device for red-bed engineering as described in claim 1, characterized in that, It also includes a slurry mixer, the outlet of which is connected to the inlet of the grouting pump for supplying the prepared slurry to the grouting pump.

8. The intelligent grouting reinforcement device for red-bed engineering as described in claim 1, characterized in that, It also includes a positioning bracket, which is sleeved on the outer periphery of the porous grouting pipe and used to fix the porous grouting pipe at a predetermined depth position in the red layer borehole.

9. The intelligent grouting reinforcement device for red-bed engineering as described in claim 1, characterized in that, The end of the porous grouting pipe furthest from the grouting pump is a closed end, and the closed end is equipped with a guide cone to guide the porous grouting pipe into the red layer borehole.

10. A method for monitoring the grouting process in red-bed engineering projects, characterized in that, The application of the intelligent grouting reinforcement device as described in any one of claims 1 to 9 includes the following process: Pressure data during the grouting process is continuously collected by a pressure sensor installed on the porous grouting pipe. The pressure data collected by the pressure sensor is transmitted to the intelligent control module; The intelligent control module determines whether the pressure data exceeds a preset threshold. When the intelligent control module determines that the pressure data exceeds the preset threshold, it triggers the alarm unit to issue a warning signal and sends an adjustment command to the grouting pump to adjust its operating parameters.

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