Bionic grouting device for slope protection based on microbial mineralization technology

Abstract

The application discloses a kind of based on slope protection with biomimetic grouting device of microbial mineralization technology, it is related to slope protection technical field, including grouting pipe, further include, bionic center column, it is fixedly installed at the central position of grouting pipe with hexagonal shape, and evenly provided with six vertical downward groove channel;The top of the grouting pipe is arranged in concave shape, and bottom is conical;The groove channel of the bionic center column is fixedly installed with transmission pipe, the transmission pipe is distributed in staggered shape between upper and lower, the bottom of the transmission pipe is fixedly installed on the communication plate, the output end of the communication plate is inserted with bionic belt hole hose, the top of the bionic center column protrudes the lowest point part of the concave of grouting pipe top, by six groove channels and staggered distribution transmission pipe, can let microbial mineralization reaction liquid pass through grouting pipe and enter the waiting time between bionic belt hole hose, and can be transported to four directions, improve transmission angle range, speed up work efficiency.

Description

Technical Field

[0001] This invention relates to the field of slope protection technology, and in particular to a biomimetic grouting device for slope protection based on microbial mineralization technology. Background Technology

[0002] Due to natural conditions or engineering reasons, soil slopes are widely distributed in most areas. Under natural conditions, continuous rainfall causes rainwater to seep into the slope soil, leading to increased soil saturation and decreased matric suction of unsaturated soil. This results in a significant reduction in the shear strength of the slope soil, greatly increasing the likelihood of landslides. Therefore, engineering measures are often needed to protect and reinforce soil slopes. Grouting technology is widely used in slope protection and reinforcement due to its adaptability, short construction time, and ability to quickly reinforce the soil.

[0003] The most common slope protection measure is cement grouting reinforcement, which involves pumping a certain degree of fluidity of cement grout into the soil layer of the slope to be protected under high pressure. The cement hydration reaction fills the soil pores and binds the soil particles. However, cement grout has high viscosity and poor fluidity, often requiring high pumping pressure, which can cause the original slope soil to split and break. Furthermore, traditional cement grouting uses a single flow rate or pressure control for injection, which can easily lead to over-grouting and poor results, resulting in low economic efficiency. Therefore, developing more economical and effective ecological slope reinforcement technologies is an urgent need in the field of slope protection.

[0004] In recent years, microbial mineralization technology, represented by microbially induced carbonate precipitation (MICP), has shown significant engineering application value in improving the stability of soil slopes and has attracted widespread attention from engineering professionals. By injecting bacterial suspension and cementing solution (urea and CaCl2 solution) into the slope soil, the urease secreted by the bacteria hydrolyzes urea into ammonium and carbonate ions. These ions combine with calcium ions in the soil pore solution to form calcium carbonate, which has a cementing effect, thereby reinforcing the soil, improving its strength and stiffness, and reducing permeability and porosity. MICP technology is widely used in the field of ecological slope reinforcement due to its advantages such as no disturbance to the strata, high permeability, controllable reaction rate and cementing strength, and low environmental pollution.

[0005] In existing technologies, when solidifying and protecting soil slopes based on microbial mineralization, the microbial mineralization reaction solution needs to be injected into the soil layer of the slope and allowed to penetrate and diffuse over a large space. However, traditional grouting equipment requires the main grouting pipe to act as a transfer point to inject the solution into the grouting hose. This results in a long injection waiting time, causing the microbial mineralization reaction solution to remain in the grouting equipment for an extended period, which can affect the subsequent solidification reaction. Consequently, the efficiency of slope solidification and protection work is generally low. Therefore, it is necessary to seek a convenient and efficient grouting equipment to effectively improve the efficiency of microbial mineralization grouting protection for soil slopes. Summary of the Invention

[0006] The purpose of this invention is to provide a biomimetic grouting device for slope protection based on microbial mineralization technology, so as to solve the above-mentioned problems.

[0007] This invention is achieved through the following technical solution:

[0008] A biomimetic grouting device for slope protection based on microbial mineralization technology includes a grouting pipe and further includes:

[0009] The biomimetic central column is hexagonal and fixedly installed at the center of the grouting pipe, and has six vertically downward grooved channels evenly distributed.

[0010] The top of the grouting pipe is concave, and the bottom is conical.

[0011] A transmission pipe is fixedly installed on the grooved channel of the biomimetic central column. The transmission pipes are distributed in an alternating pattern. The bottom of the transmission pipe is fixedly installed on the connecting plate. A biomimetic perforated hose is inserted into the output end of the connecting plate. Through the six grooved channels and the alternating transmission pipes, the waiting time between the microbial mineralization reaction liquid entering the biomimetic perforated hose through the grouting pipe is relatively short.

[0012] Preferably, the top of the bionic central column extends out of the lowest concave part of the top of the grouting pipe, and the groove channel of the bionic central column and the concave entrance at the top of the grouting pipe form six small entrances. The connecting plate is provided with a cylinder for the bionic perforated hose to be rolled up.

[0013] Preferably, the grouting pipe is further provided with a sealing mechanism, which includes an opening. The opening is located on the same horizontal plane as the output end of the bionic perforated flexible tube. A sliding column is slidably installed inside the grouting pipe, and the bottom of the sliding column is rotatably installed on the top of the baffle plate.

[0014] Preferably, the baffle is arranged in a right-angled T shape and is slidably arranged to fit the opening. The top of the sliding column extends out of the grouting pipe. The top of the sliding column has two limiting holes, which are distributed vertically. A locking rod is inserted into the limiting hole. The locking rod is located outside the grouting pipe. The baffle closes the opening to make the grouting pipe in a closed state.

[0015] Preferably, the connecting plate is further provided with a disengagement mechanism, which includes a fixing ring. The fixing ring is embedded in the output end of the connecting plate, and an insert ring is inserted into the inner side wall of the fixing ring. The insert ring is fixedly installed in the input end of the bionic perforated flexible tube. The top of the fixing ring and the insert ring are both provided with insertion holes of the same diameter. When the insert ring is fully inserted into the fixing ring, the insertion holes at the top of the fixing ring and the insert ring will overlap to form a through hole.

[0016] Preferably, a limiting block is embedded in the side wall of the connecting plate, and a release rod is slidably installed on the limiting block. The diameter of the release rod is the same as the diameter of the insertion hole. The top of the release rod is fixedly installed on the bottom of the extrusion plate. An elastic element is provided between the bottom of the extrusion plate and the side wall of the connecting plate. The extrusion plate is T-shaped. A swing rod is fixedly installed on the sliding column. The automatic separation operation between the grouting pipe and the bionic perforated hose avoids manual separation operation and simplifies the grouting operation.

[0017] Preferably, the extrusion plate is further provided with a flow-promoting mechanism, which includes an arc-shaped rod slidably installed on the top of the extrusion plate. Both ends of the arc-shaped rod are spherical. A semi-circular rubber sheet is provided on the inclined surface of the extrusion plate. A top rod is fixedly installed on the inner side of the semi-circular rubber sheet. The top rod is arc-shaped. An elastic element is provided between the bottom of the arc-shaped rod and the inner wall of the extrusion plate to promote the vibration treatment of residual dust and other impurities attached to the connecting plate, thereby loosening them.

[0018] Preferably, an arc-shaped protrusion is fixedly installed on the top of the transmission pipe near the connecting plate, and a curved pressure rod is fixedly installed on the top of the arc-shaped rod. The outermost end of the curved pressure rod is rectangular, and the bottom is semi-circular. The outermost end of the curved pressure rod is located near the outside of the arc-shaped protrusion. A cleaning rod is also provided on the top of the curved pressure rod. One end of the cleaning rod is square and slidably sleeved on the outside of the curved pressure rod, and the other end is circular and slidably sleeved on the outside of the arc-shaped rod. After the attached residual dust and other impurities are loosened by vibration, they can be carried away by the subsequent injection of pressurized gas and discharged through the holes of the bionic perforated hose.

[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] 1. This invention, by establishing a biomimetic central column with grooved channels, transmission pipes, and connecting plates, is equivalent to directly connecting the biomimetic perforated hose to the injection inlet of the grouting pipe. This prevents the microbial mineralization reaction liquid from flowing to other parts of the grouting pipe, reducing the waste of the microbial mineralization reaction liquid. The microbial mineralization reaction liquid can then flow into the soil layer through the holes of the biomimetic perforated hose for solidification. Through six grooved channels and staggered transmission pipes, the waiting time between the microbial mineralization reaction liquid entering the biomimetic perforated hose through the grouting pipe is shortened, and it can be transported in all directions, improving the transmission angle range and accelerating work efficiency.

[0021] 2. This invention, by setting a sealing mechanism, closes the opening when the grouting pipe is not in use or during insertion into the soil layer, keeping the grouting pipe in a closed state. When the clamp is pulled out to release the restriction, pressing the sliding column will move the sealing plate downward, and the sealing plate will open the opening to facilitate the bionic perforated hose to enter the soil layer. Ultimately, the sliding column and the sealing plate control the closing state of the opening, which can effectively protect the internal and external environment of the grouting pipe and prevent the external environment from damaging the inside of the grouting pipe and affecting the soil solidification operation.

[0022] 3. This invention, by providing a release mechanism, allows the release rod to be fixed and released from the insertion hole through the compression between the compression plate and the swing rod. When the release rod separates from the insertion hole, the bionic perforated hose can pull the insertion ring out of the fixing ring through the pulling force of the soil layer, thus separating the fixing ring from the insertion ring. This achieves automatic separation between the grouting pipe and the bionic perforated hose, avoiding manual separation, simplifying the grouting operation, and eliminating the need to bring the bionic perforated hose out together with the grouting pipe, thereby protecting the soil layer.

[0023] 4. This invention, by setting a flow-promoting mechanism, causes vibration at the connection between the connecting plate and the transmission pipe through the sliding operation of the arc-shaped rod. This vibration loosens the attached residual dust and other impurities, which can then be carried away by the subsequent injection of pressurized gas through the holes of the biomimetic perforated hose. This prevents blockage during the subsequent injection of the microbial mineralization reaction solution and prevents impurities from reacting with the microbial mineralization reaction solution and affecting the solidification operation. It can achieve smooth flow of the channels in the transmission pipe and the connecting plate, promote the smooth flow of the microbial mineralization reaction solution and normal solidification efficiency.

[0024] 5. In this invention, by providing a cleaning rod, during the movement of the arc-shaped rod and the curved pressure rod, the cleaning rod will cause the square and round ends at both ends to slide repeatedly due to the action of inertial force, so that the cleaning rod can perform cleaning operations on the outside of the curved pressure rod and the arc-shaped rod, thereby improving the smoothness of the arc-shaped rod's sliding and preventing dust adhesion from affecting work efficiency. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 This is a schematic diagram of the overall external structure of the present invention;

[0027] Figure 2 This is a schematic diagram of a partial internal structure of the grouting pipe;

[0028] Figure 3 This is a schematic diagram of a partial external structure of the biomimetic central column;

[0029] Figure 4 This is a schematic diagram of a partial external structure of the shield;

[0030] Figure 5 This is a schematic diagram of a partial external structure of the connecting plate;

[0031] Figure 6 This is a schematic diagram of a partial external structure of the fixed ring;

[0032] Figure 7 This is a schematic diagram of a partial external structure of the extrusion plate;

[0033] Figure 8 This is a schematic diagram of a partial internal structure of the extrusion plate.

[0034] The reference numerals in the attached drawings represent: 1-grouting pipe, 2-bionic central column, 3-transfer pipe, 4-connecting plate, 5-bionic perforated hose, 6-opening, 7-sliding column, 8-shielding plate, 9-limiting hole, 10-clamping rod, 11-fixing ring, 12-insertion ring, 13-insertion hole, 14-release rod, 15-squeezing plate, 16-limiting block, 17-swinging rod, 18-semi-circular rubber sheet, 19-top rod, 20-arc rod, 21-bent pressure rod, 22-arc protrusion, 23-cleaning rod. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments and accompanying drawings. The illustrative embodiments and descriptions of this invention are for illustrative purposes only and are not intended to limit the invention. It should be noted that this invention is already in the actual research and development stage.

[0036] like Figures 1 to 8 As shown, this embodiment includes a grouting pipe 1, and also includes:

[0037] The biomimetic central column 2 is hexagonally fixed at the center of the grouting pipe 1 and is evenly provided with six vertically downward groove channels.

[0038] The top of the grouting pipe 1 is concave and the bottom is conical. The top of the bionic central column 2 extends out of the lowest point of the concave part of the top of the grouting pipe 1, so that the groove channel of the bionic central column 2 and the concave entrance of the top of the grouting pipe 1 form six small entrances.

[0039] A transmission tube 3 is fixedly installed on the groove channel of the bionic central column 2. The transmission tubes 3 are distributed in an alternating manner, so that the transmission of the transmission tubes 3 does not affect each other and there are more directions of transmission. The bottom of the transmission tube 3 is fixedly installed on the connecting plate 4. A bionic perforated flexible tube 5 is inserted into the output end of the connecting plate 4. The connecting plate 4 is provided with a cylinder for the bionic perforated flexible tube 5 to be rolled.

[0040] In the above technical solution, the biomimetic central column 2 and the transmission pipe 3 form a biomimetic structure similar to a tree trunk, while the connecting plate 4 and the biomimetic perforated hose 5 can form a biomimetic structure similar to tree roots. This allows the biomimetic perforated hose 5 to penetrate deep into the soil layer like tree roots. During the solidification of the slope soil, the grouting pipe 1 is first inserted into the slope soil layer by drilling. Then, pressurized gas is injected into the grouting pipe 1 to push the coiled biomimetic perforated hose 5 deeper into the soil. Subsequently, microbial mineralization reaction liquid is injected into the grouting pipe 1. During injection, the microbial mineralization reaction liquid flows downward through the concave inclined surface at the top of the grouting pipe 1, and then through the biomimetic central column 2 and the transmission pipe 3. The six small inlets formed by the top of the core column 2 and the grouting pipe 1 enter the six grooved channels on the biomimetic core column 2. The microbial mineralization reaction liquid continues to flow downwards through the grooved channels, and then enters its respective transmission pipe 3. Subsequently, the microbial mineralization reaction liquid enters the connecting plate 4 through the transmission pipe 3, and then immediately enters the biomimetic perforated hose 5. By establishing the grooved channels, transmission pipe 3, and connecting plate 4 of the biomimetic core column 2, it is equivalent to directly connecting the biomimetic perforated hose 5 to the injection inlet of the grouting pipe 1, preventing the microbial mineralization reaction liquid from flowing to other parts of the grouting pipe 1, reducing the waste of the microbial mineralization reaction liquid, and allowing the microbial mineralization reaction liquid to pass through the holes of the biomimetic perforated hose 5. The solidification process is carried out in the soil layer. Through six grooved channels and staggered transmission pipes 3, the waiting time between the microbial mineralization reaction liquid entering the biomimetic perforated hose 5 via the grouting pipe 1 is short, and it can be transported in all directions, increasing the transmission angle range and accelerating work efficiency. The working process of the aforementioned biomimetic central column 2 mimics the transmission between a tree trunk and roots. The biomimetic central column 2 imitates the tree trunk, while the transmission pipes 3, connecting plates 4, and biomimetic perforated hose 5 imitate the roots. Pressurized gas and microbial mineralization reaction liquid are transmitted from the tree trunk of the biomimetic central column 2 to the root system of the transmission pipes 3, connecting plates 4, and biomimetic perforated hose 5, causing multiple biomimetic perforated hoses to... The tube 5 can extend over a wide area, similar to a root system. Utilizing this extensive root system, a microbial mineralization reaction solution is injected into the soil. This reaction produces calcium carbonate crystals with a gelling effect, solidifying the multiple biomimetic perforated tubes 5 that penetrate the soil, forming a rigid tube. This creates a skeletal-like structure, achieving soil solidification. Furthermore, the biomimetic perforated tubes used in this invention are all biodegradable, allowing them to gradually degrade after solidification, reducing harm to the soil. Ultimately, this biomimetic application effectively improves the efficiency of soil solidification.

[0041] like Figure 1 , Figure 2 and Figure 4 As shown, the grouting pipe 1 is also equipped with a sealing mechanism, which includes an opening 6. The opening 6 is opened on the grouting pipe 1 and is located on the same horizontal plane as the output end of the bionic perforated hose 5. A sliding column 7 is slidably installed inside the grouting pipe 1. The bottom of the sliding column 7 is rotatably installed on the top of the baffle plate 8, so that the sliding column 7 can rotate on the top of the baffle plate 8 and can also drive the baffle plate 8 to move up and down. The baffle plate 8 is set in a right-angled T shape and is slidably set to fit the opening 6. The top of the sliding column 7 extends out of the grouting pipe 1. Two limiting holes 9 are opened on the top of the sliding column 7. The two limiting holes 9 are distributed in an up-down position. A locking rod 10 is inserted into the limiting hole 9 and is located outside the grouting pipe 1.

[0042] In the above technical solution, when the grouting pipe 1 is not in use or during the insertion into the soil layer, the baffle plate 8 closes the opening 6, keeping the grouting pipe 1 in a closed state. At this time, the clamping rod 10 is located inside the lower limiting hole 9. Since the clamping rod 10 is located outside the grouting pipe 1, it can fix the position of the sliding column 7, preventing it from sliding downwards due to gravity. When the grouting pipe 1 is inserted into the soil layer and pressurized gas or microbial mineralization reaction liquid is injected, the opening 6 needs to be opened. At this time, simply pull out the clamping rod 10, then press the sliding column 7 downwards until the upper limiting hole 9 of the sliding column 7 moves to the initial position of the lower limiting hole 9, and then clamp the clamping rod 10 back into place. During this process, the sliding column 7 will drive the baffle plate 8 to move downwards, and the baffle plate 8 will open the opening 6 to facilitate the entry of the bionic perforated hose 5 into the soil layer. When it is necessary to close the grouting pipe 1 again, simply pull out the clamping rod 10 and pull the sliding column 7 upwards so that both the upper and lower limiting holes 9 return to their initial positions. Then, clamp the sliding column 7 back to the position of the lower limiting hole 9. During this process, the sliding column 7 will drive the baffle plate 8 to close the opening 6 again, thereby re-sealing the grouting pipe 1. By controlling the closing state of the opening 6 through the sliding column 7 and the baffle plate 8, the internal and external environment of the grouting pipe 1 can be effectively protected, preventing the external environment from damaging the inside of the grouting pipe 1 and affecting the soil solidification operation.

[0043] like Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, the connecting plate 4 is also equipped with a disengagement mechanism, which includes a fixing ring 11. The fixing ring 11 is fixedly installed at the output end of the connecting plate 4. An insert ring 12 is inserted into the inner wall of the fixing ring 11. The insert ring 12 is fixedly installed at the input end of the bionic perforated flexible tube 5. The tops of the fixing ring 11 and the insert ring 12 are both provided with insertion holes 13 of the same diameter. When the insert ring 12 is fully inserted into the fixing ring 11, the insertion holes 13 at the tops of the fixing ring 11 and the insert ring 12 will overlap to form a through hole. A limiting block 16 is fixedly installed on the side wall of the connecting plate 4. A disengagement rod 14 is slidably installed on the limiting block 16. The limiting block 16 can limit the disengagement rod 14 to ensure that the disengagement rod 14 is always in the same position as the insertion hole 13. In the vertical plane, the diameter of the release rod 14 is the same as the diameter of the insertion hole 13, so that the release rod 14 can be inserted into the insertion hole 13, thereby fixing the fixing ring 11 and the insertion ring 12. The top of the release rod 14 is fixedly installed on the bottom of the extrusion plate 15. An elastic element is provided between the bottom of the extrusion plate 15 and the side wall of the connecting plate 4. The elastic element here is a spring sheet, so that the movement of the extrusion plate 15 has an elastic restoring force. The extrusion plate 15 is T-shaped. A swing rod 17 is fixedly installed on the sliding column 7. The initial position of the swing rod 17 is above the inclined surface of the extrusion plate 15. The initial state of the extrusion plate 15 is to drive the release rod 14 to be above the insertion hole 13, while the insertion ring 12 is initially fully inserted into the fixing ring 11.

[0044] In the above technical solution, when it is necessary to open the opening 6 for work, the sliding column 7 will be pressed downward to drive the baffle plate 8 to open the opening 6. After opening the opening 6, the sliding column 7 will simultaneously drive the swing rod 17 to be located on the inclined surface of the extrusion plate 15. Then, the sliding column 7 can be rotated clockwise. The clockwise rotation of the sliding column 7 will drive the swing rod 17 to rotate clockwise. The clockwise rotation of the swing rod 17 will push the extrusion plate 15 downward through the inclined surface of the extrusion plate 15. The extrusion plate 15 will then drive the release rod 14 to move downward, so that the release rod 14 will be inserted downward into the insertion hole 13, thereby fixing the position of the fixing ring 11 and the insertion ring 12, and thus fixing the tail of the bionic perforated hose 5, preventing the bionic perforated hose 5 from detaching from the connecting plate 4 during the injection work. Then the injection work can proceed smoothly. When it is necessary to remove the grouting pipe 1, since it is not necessary to take out the bionic perforated hose 5, the sliding column 7 is rotated counterclockwise. Column 7 can drive the swing rod 17 to rotate counterclockwise away from the top of the extrusion plate 15 and return to the initial position. The extrusion plate 15 will move upward and return to the initial position due to the elastic force of the elastic element. At this time, the extrusion plate 15 can drive the release rod 14 to move upward. The release rod 14 can move upward and disengage from the insertion hole 13. At this time, the fixing ring 11 and the insertion ring 12 are in an unfixed state, and the grouting pipe 1 can be directly taken out. Since the bionic perforated hose 5 has penetrated into the soil layer, the removal of the grouting pipe 1 will drive the connecting plate 4 and the fixing ring 11 to be taken out as well. The bionic perforated hose 5 can pull the insertion ring 12 out of the fixing ring 11 through the pulling force of the soil layer, so that the fixing ring 11 and the insertion ring 12 are separated, thereby achieving the automatic separation operation between the grouting pipe 1 and the bionic perforated hose 5, avoiding manual separation operation, simplifying the grouting operation, and eliminating the need to bring out the bionic perforated hose 5 together with the grouting pipe 1, thus protecting the soil layer.

[0045] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, the extrusion plate 15 is also equipped with a flow-promoting mechanism, which includes an arc-shaped rod 20. The arc-shaped rod 20 is slidably installed on the top of the extrusion plate 15. Both ends of the arc-shaped rod 20 are spherical. Half of the arc-shaped rod 20 is located outside the extrusion plate 15 and close to the outside of the connecting plate 4, and the other half is located inside the extrusion plate 15. A semi-circular rubber sheet 18 is provided on the inclined surface of the extrusion plate 15. The semi-circular rubber sheet 18 has its own elastic restoring force. A top rod 19 is fixedly installed on the inner side of the semi-circular rubber sheet 18. The top rod 19 is arc-shaped to facilitate the extrusion of the bottom of the arc-shaped rod 20. An elastic element is provided between the extrusion plate 15 and the inner wall, so that the arc-shaped rod 20 has elastic restoring force in its arc-shaped sliding. An arc-shaped protrusion 22 is fixedly installed on the top of the transmission pipe 3 near the connecting plate 4. A curved pressure rod 21 is fixedly installed on the top of the arc-shaped rod 20. The outermost end of the curved pressure rod 21 is long and rectangular, and the bottom is semi-circular. The outermost end of the curved pressure rod 21 is located near the outside of the arc-shaped protrusion 22. A cleaning rod 23 is also provided on the top of the curved pressure rod 21. One end of the cleaning rod 21 is square and slidably sleeved on the outside of the curved pressure rod 21, and the other end is circular and slidably sleeved on the outside of the arc-shaped rod 20.

[0046] In the above technical solution, when the sliding column 7 rotates clockwise and drives the swing rod 17 to slide on the inclined surface of the extrusion plate 15, the swing rod 17 will squeeze the semi-circular rubber sheet 18 on the inclined surface of the extrusion plate 15. The semi-circular rubber sheet 18 being squeezed can push the top rod 19 to slide in an arc. The top rod 19 can then push the arc rod 20 upward in an arc from the bottom of the arc rod 20, so that the arc rod 20 can move upward in an arc to knock on the outside of the connecting plate 4, thereby promoting the vibration treatment of residual dust and other impurities attached to the connecting plate 4 and loosening them. At the same time, the arc rod 20 will also drive the outermost end of the curved pressure rod 21 to impact the outside of the arc protrusion 22 on the transmission pipe 3. The curved pressure rod 21 can then rub and impact the arc protrusion 22 through the semi-circular protrusion at the bottom of the long rectangular shape of the outermost end, so that the connection between the transmission pipe 3 and the connecting plate 4 is... It also generates vibration, which loosens the attached residual dust and other impurities. After the attached residual dust and other impurities are loosened by vibration, they can be carried away by the subsequent injection of pressurized gas and discharged through the holes of the biomimetic perforated hose 5. This prevents blockage during the subsequent injection of microbial mineralization reaction liquid and prevents impurities from reacting with the microbial mineralization reaction liquid and affecting the curing operation. It can achieve smooth flow of the channels in the transmission pipe 3 and the connecting plate 4, promote the smooth flow of the microbial mineralization reaction liquid and normal curing efficiency. During the movement of the arc rod 20 and the curved pressure rod 21, the cleaning rod 23 will drive the square and round ends at both ends to slide repeatedly due to the inertial force. This allows the cleaning rod 23 to clean the outside of the curved pressure rod 21 and the arc rod 20, thereby improving the smoothness of the arc rod 20's sliding and preventing the adhesion of dust from affecting work efficiency.

[0047] In summary, the six grooved channels and staggered transmission pipes 3 allow for a shorter waiting time between the microbial mineralization reaction solution entering the biomimetic perforated hose 5 through the grouting pipe 1, and enable it to be transported in all directions, increasing the transmission angle range and accelerating work efficiency. By setting a sealing mechanism and a detachment mechanism, the grouting pipe 1 can be in a controllable sealed state, and the biomimetic perforated hose 5 can automatically detach from the grouting pipe 1. By setting a flow-promoting mechanism, the channel between the transmission pipe 3 and the connecting plate 4 is kept smooth, stabilizing the curing efficiency.

[0048] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. 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 biomimetic grouting device for slope protection based on microbial mineralization technology, comprising a grouting pipe (1), characterized in that, Also includes: The biomimetic central column (2) is hexagonally fixed at the center of the grouting pipe (1) and is evenly provided with six vertically downward groove channels; The top of the grouting pipe (1) is concave, and the bottom is conical. A transmission tube (3) is fixedly installed on the groove channel of the bionic central column (2). The transmission tubes (3) are arranged in an alternating pattern. The bottom of the transmission tubes (3) is fixedly installed on the connecting plate (4). A bionic perforated flexible tube (5) is inserted into the output end of the connecting plate (4). The top of the bionic central column (2) extends out of the lowest point of the concave part of the top of the grouting pipe (1). The groove channel of the bionic central column (2) and the concave entrance of the top of the grouting pipe (1) form six small entrances. The connecting plate (4) is provided with a circle for the bionic perforated hose (5) to be rolled. The grouting pipe (1) is also provided with a sealing mechanism, which includes an opening (6). The opening (6) is opened on the grouting pipe (1). The opening (6) is located on the same horizontal plane as the output end of the bionic perforated hose (5). A sliding column (7) is slidably installed inside the grouting pipe (1). The bottom of the sliding column (7) is rotatably installed on the top of the baffle plate (8). The shield (8) is set in a right-angled T shape and slides to fit the opening (6). The top of the sliding column (7) extends out of the grouting pipe (1). The top of the sliding column (7) has two limiting holes (9) and the two limiting holes (9) are distributed vertically. A locking rod (10) is inserted into the limiting hole (9) and the locking rod (10) is located outside the grouting pipe (1). The connecting plate (4) is also provided with a disengagement mechanism, which includes a fixing ring (11). The fixing ring (11) is fixedly installed at the output end of the connecting plate (4). A plug ring (12) is inserted into the inner side wall of the fixing ring (11). The plug ring (12) is fixedly installed at the input end of the bionic perforated flexible tube (5). The top of the fixing ring (11) and the plug ring (12) are both provided with plug holes (13) of the same diameter. A limiting block (16) is fixedly installed on the side wall of the connecting plate (4). A release rod (14) is slidably installed on the limiting block (16). The diameter of the release rod (14) is the same as the diameter of the insertion hole (13). The top of the release rod (14) is fixedly installed on the bottom of the extrusion plate (15). An elastic element is provided between the bottom of the extrusion plate (15) and the side wall of the connecting plate (4). The extrusion plate (15) is T-shaped. A swing rod (17) is fixedly installed on the sliding column (7).

2. The biomimetic grouting device for slope protection based on microbial mineralization technology according to claim 1, characterized in that: The extrusion plate (15) is also provided with a flow-promoting mechanism, which includes an arc-shaped rod (20). The arc-shaped rod (20) is slidably installed on the top of the extrusion plate (15). Both ends of the arc-shaped rod (20) are spherical. A semi-circular rubber sheet (18) is provided on the inclined surface of the extrusion plate (15). A top rod (19) is fixedly installed on the inner side of the semi-circular rubber sheet (18). The top rod (19) is arc-shaped. An elastic element is provided between the bottom of the arc-shaped rod (20) and the inner wall of the extrusion plate (15).

3. The biomimetic grouting device for slope protection based on microbial mineralization technology according to claim 2, characterized in that: The transmission pipe (3) is fixedly installed with an arc-shaped protrusion (22) near the top of the connecting plate (4). The top of the arc-shaped rod (20) is fixedly installed with a curved pressure rod (21). The outermost end of the curved pressure rod (21) is set as a long rectangle and the bottom is set as a semi-circular protrusion. The outermost end of the curved pressure rod (21) is set near the outside of the arc-shaped protrusion (22). The top of the curved pressure rod (21) is also provided with a cleaning rod (23). One end of the cleaning rod (23) is square and slidably sleeved on the outside of the curved pressure rod (21), and the other end is circular and slidably sleeved on the outside of the arc-shaped rod (20).

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