High-pressure jet grouting method and equipment thereof

Abstract

The invention relates to the technical field of building construction, in particular to a high-pressure jet grouting method and equipment thereof. Comprising a bottom plate, a storage box, a feeding pipe, a high-pressure pump, a plurality of moving wheels and a grouting assembly. The grouting assembly comprises a connector, a conveying pipe, a U-shaped frame, an electric lead screw, a sleeve, a guide rod, a moving plate and a transverse moving unit, the bottom plate is provided with a through groove, the transverse moving unit is arranged above the bottom plate, the U-shaped frame is connected with the transverse moving unit, the electric lead screw is rotationally arranged in the mounting groove, the guide rod is fixedly arranged in the limiting groove, and the sleeve is arranged outside the electric lead screw in a sleeving mode; one end of the moving plate is fixedly connected with the sleeve, the other end of the moving plate is slidably connected with the guide rod, one end of the conveying pipe is connected with the output end of the high-pressure pump, the other end of the conveying pipe is fixedly connected with the moving plate, and the connector is fixedly connected with the conveying pipe. The position of the grouting pipe is convenient and fast to adjust, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a high-pressure jet grouting method and equipment thereof. Background Art

[0002] High-pressure jet grouting technology is widely used in foundation reinforcement and anti-seepage projects of buildings. It is a construction process that combines high-pressure hydraulic jet cutting technology and grouting technology. With the innovation of technology and the improvement of equipment, high-pressure jet grouting technology has shown the characteristics of fast progress, high efficiency and strong adaptability.

[0003] At present, the general method of grouting in construction is to use a high-pressure jet grouting machine for grouting. When adjusting the position of the grouting pipe, personnel are required to move the equipment and manually adjust the position of the grouting pipe.

[0004] However, in the above-mentioned existing method, the steps of manually adjusting the position of the grouting pipe are relatively complicated, requiring much manpower and time, and the work efficiency is low. Summary of the invention

[0005] The purpose of the present invention is to provide a high-pressure jet grouting method and equipment thereof, aiming to solve the technical problems that the existing steps of manually adjusting the position of the grouting pipe are relatively cumbersome, require a lot of manpower and time, and have low work efficiency.

[0006] To achieve the above-mentioned purpose, the present invention adopts a high-pressure jet grouting equipment, including a bottom plate, a material storage box, a feed pipe, a high-pressure pump, a plurality of moving wheels and a grouting assembly, wherein the plurality of moving wheels are connected to the bottom plate and are located below the bottom plate, the material storage box is fixedly arranged above the bottom plate, the feed pipe is connected to the material storage box, the high-pressure pump is fixedly arranged above the bottom plate, the input end of the high-pressure pump is connected to the material storage box, and the grouting assembly is connected to the output end of the high-pressure pump;

[0007] The grouting assembly includes a connecting head, a delivery pipe, a U-shaped frame, an electric screw, a sleeve, a guide rod, a movable plate and a transverse movement unit. The base plate has a through groove, and the transverse movement unit is arranged above the base plate. The U-shaped frame is connected to the transverse movement unit. The U-shaped frame has an installation groove and a limit groove. The electric screw is rotatably arranged in the installation groove, and the guide rod is fixedly arranged in the limit groove. The sleeve is sleeved on the outside of the electric screw and is threadedly matched with the electric screw. One end of the movable plate is fixedly connected to the sleeve, and the other end of the movable plate is slidably connected to the guide rod. One end of the delivery pipe is connected to the output end of the high-pressure pump, and the other end of the delivery pipe is fixedly connected to the movable plate and movably passes through the U-shaped frame. The connecting head is fixedly connected to the delivery pipe.

[0008] Among them, the transverse movement unit includes two sliders, two guide rails, a fixed plate, a pull rod, a supporting block and a supporting spring. The two guide rails are fixedly connected to the base plate and are both located above the base plate. The two sliders are fixedly connected to the U-shaped frame and are respectively located in the corresponding guide rails. The fixed plate is fixedly connected to the U-shaped frame. The pull rod movably passes through the fixed plate. The supporting block is fixedly connected to the pull rod. The two ends of the supporting spring are respectively fixedly connected to the fixed plate and the pull rod, and are sleeved on the outside of the pull rod. The base plate has a plurality of fixing holes.

[0009] Wherein, the grouting assembly also includes a force applying rod, which is fixedly connected to the U-shaped frame and is located on the outer side wall of the U-shaped frame.

[0010] Among them, the high-pressure jet grouting equipment also includes a first motor, a driving rod and a plurality of first stirring rods. The first motor is fixedly connected to the storage box and is located below the storage box. The driving rod is connected to the output end of the first motor. The plurality of first stirring rods are fixedly connected to the driving rod and are located on the outer wall of the driving rod.

[0011] Among them, the high-pressure jet grouting equipment also includes a second motor, a rotating shaft, two connecting frames, a plurality of second stirring rods, two scrapers and a connecting ring. The second motor is fixedly connected to the storage box and is located above the storage box. The rotating shaft is connected to the output end of the second motor and is located in the storage box. The two connecting frames are fixedly connected to the rotating shaft, the two scrapers are respectively fixedly connected to the corresponding connecting frames, the plurality of second stirring rods are respectively fixedly connected to the corresponding connecting frames, and the connecting rings are fixedly connected to the two connecting frames.

[0012] Wherein, the high-pressure jet grouting equipment also includes multiple groups of support components, and the multiple groups of support components are all connected to the base plate and are all located below the base plate.

[0013] Wherein, the support assembly includes a hydraulic cylinder, a support plate and a plurality of fixing pins, the hydraulic cylinder is fixedly connected to the base plate and is located below the base plate, the support plate is connected to the output end of the hydraulic cylinder, and the plurality of fixing pins are fixedly connected to the support plate and are located below the support plate.

[0014] The present invention also provides a high-pressure jet grouting method, comprising the following steps:

[0015] Conduct detailed geological surveys to understand the geological conditions, soil layer distribution and groundwater level information of the construction area;

[0016] Design a reasonable high-pressure jet grouting plan based on the information, including parameters such as grouting pipe type, grouting material, grouting pressure, grouting volume, etc.

[0017] Use drilling rigs to perform drilling operations in the construction area;

[0018] Move the grouting equipment to the drilling hole, and fix the grouting pipe on the connecting head of the conveying pipe;

[0019] The movable plate is driven downward by the electric screw and the guide rod, and the movable plate delivers the grouting pipe into the grouting hole;

[0020] The high-pressure pump is started to transport the slurry in the storage box into the grouting pipe, and the slurry is ejected in the form of high-pressure flow to impact and cut the soil;

[0021] After the grouting construction is completed, quality inspection will be carried out.

[0022] The present invention relates to a high-pressure jet grouting method and equipment thereof, wherein the slurry required for grouting is stored in the storage box. When the grouting operation is performed, force is applied to push the bottom plate to move, and the bottom plate is moved to the grouting position. The lateral movement assembly is used to move the connector so that the connector is located above the grouting hole. Then, the grouting pipe is fixed on the connector, the delivery pipe is connected to the grouting pipe, and then the electric screw in the installation groove is started. The sleeve is driven downward by the electric screw, and then the moving plate drives the connector to move downward, and the grouting pipe is gradually moved downward. Enter the grouting hole, and at the same time, the delivery pipe will slide on the U-shaped frame until the grouting pipe is sent into the grouting hole, and then the high-pressure pump will be started, and the high-pressure pump will extract the slurry in the storage box, and the slurry will be transported through the delivery pipe and then enter the grouting pipe under the connecting head. The grouting pipe transports the slurry to the opened grouting hole. In the above process, it is more convenient and faster than traditional layout equipment, and greatly saves manpower. Through the above method, it is achieved that manpower and time can be greatly reduced, and the position of the grouting pipe can be adjusted conveniently and quickly, which greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of the high-pressure jet grouting equipment of the present invention.

[0025] Figure 2 It is a structural side view of the high-pressure jet grouting equipment of the present invention.

[0026] Figure 3 It is a structural front view of a material storage box of the present invention.

[0027] Figure 4 The present invention Figure 2 AA line structural cross-section view.

[0028] Figure 5 The present invention Figure 3 BB line structural cross-sectional view.

[0029] Figure 6 The present invention Figure 1 Enlarged view of the local structure at location C.

[0030] Figure 7 It is a flow chart of the steps of the high-pressure jet grouting method of the present invention.

[0031] 101-bottom plate, 102-storage box, 103-feeding pipe, 104-high pressure pump, 105-moving wheel, 106-delivery pipe, 107-U-shaped frame, 108-electric screw rod, 109-sleeve, 110-guide rod, 111-moving plate, 112-through groove, 113-installation groove, 114-limiting groove, 115-slider, 116-guide rail, 117-fixed plate, 118-pull rod, 119-holding block, 120-holding spring, 121-fixing hole, 122-connecting head, 123-force rod, 124-first motor, 125-driving rod, 126-first stirring rod, 127-second motor, 128-rotating shaft, 129-connecting frame, 130-second stirring rod, 131-scraper, 132-connecting ring, 133-hydraulic cylinder, 134-support plate, 135-fixing pin, 136-connecting plate, 137-sliding rod, 138-cleaning plate, 139-reset spring. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0033] See also Figure 1 to Figure 6The present invention provides a high-pressure jet grouting equipment, including a bottom plate 101, a material storage box 102, a feed pipe 103, a high-pressure pump 104, a plurality of moving wheels 105 and a grouting assembly, wherein the plurality of moving wheels 105 are connected to the bottom plate 101 and are located below the bottom plate 101, the material storage box 102 is fixedly arranged above the bottom plate 101, the feed pipe 103 is connected to the material storage box 102, the high-pressure pump 104 is fixedly arranged above the bottom plate 101, the input end of the high-pressure pump 104 is connected to the material storage box 102, and the grouting assembly is connected to the output end of the high-pressure pump 104;

[0034] The grouting assembly includes a connector 122, a delivery pipe 106, a U-shaped frame 107, an electric screw 108, a sleeve 109, a guide rod 110, a movable plate 111 and a transverse movement unit. The bottom plate 101 has a through groove 112. The transverse movement unit is arranged above the bottom plate 101. The U-shaped frame 107 is connected to the transverse movement unit. The U-shaped frame 107 has an installation groove 113 and a limiting groove 114. The electric screw 108 is rotatably arranged in the installation groove 113. The guide rod 110 is fixedly arranged in the limiting groove 114. 14, the sleeve 109 is sleeved on the outside of the electric screw 108 and is threadedly matched with the electric screw 108, one end of the movable plate 111 is fixedly connected to the sleeve 109, the other end of the movable plate 111 is slidably connected to the guide rod 110, one end of the delivery pipe 106 is connected to the output end of the high-pressure pump 104, the other end of the delivery pipe 106 is fixedly connected to the movable plate 111 and movably passes through the U-shaped frame 107, and the connecting head 122 is fixedly connected to the delivery pipe 106.

[0035] In this embodiment, the slurry required for grouting is stored in the storage box 102. When performing the grouting operation, the base plate 101 is pushed to move, and the base plate 101 is moved to the grouting position. The connecting head 122 is moved by the transverse movement assembly so that the connecting head 122 is located above the grouting hole, and then the grouting pipe is fixed on the connecting head 122, and the delivery pipe 106 is connected with the grouting pipe. Then, the electric screw 108 in the installation groove 113 is started, and the sleeve 109 is driven downward by the electric screw 108. Then, the moving plate 111 drives the connecting head 122 to move downward, and the grouting is completed. The pipe gradually enters the grouting hole, and at the same time, the delivery pipe 106 will slide on the U-shaped frame 107 until the grouting pipe is delivered to the grouting hole, and then the high-pressure pump 104 is started, and the high-pressure pump 104 extracts the slurry in the storage box 102, and the slurry is transported through the delivery pipe 106 and then enters the grouting pipe under the connector 122. The grouting pipe transports the slurry to the opened grouting hole. In the above process, it is more convenient and faster than traditional layout equipment, and greatly saves manpower. Through the above method, it is achieved that manpower and time can be greatly reduced, and the position of the grouting pipe can be adjusted conveniently and quickly, which greatly improves work efficiency.

[0036] Furthermore, the transverse movement unit includes two sliders 115, two guide rails 116, a fixed plate 117, a pull rod 118, a supporting block 119 and a supporting spring 120. The two guide rails 116 are fixedly connected to the base plate 101 and are both located above the base plate 101. The two sliders 115 are fixedly connected to the U-shaped frame 107 and are respectively located in the corresponding guide rails 116. The fixed plate 117 is fixedly connected to the U-shaped frame 107. The pull rod 118 movably passes through the fixed plate 117. The supporting block 119 is fixedly connected to the pull rod 118. The two ends of the supporting spring 120 are respectively fixedly connected to the fixed plate 117 and the pull rod 118, and are sleeved on the outside of the pull rod 118. The base plate 101 has a plurality of fixing holes 121.

[0037] In this embodiment, when adjusting the grouting position of the grouting pipe, the pull rod 118 is pulled on the support plate 134, and the pull rod 118 drives the abutting block 119 to leave the fixing hole 121, and the abutting spring 120 is stretched, and then the U-shaped frame 107 is pulled to move, and the slider 115 under the U-shaped frame 107 will slide in the guide rail 116. After moving appropriately, the pull rod 118 is released, and the elastic force of the abutting spring 120 is used to send the abutting block 119 into the corresponding fixing hole 121, and the U-shaped frame 107 is fixed again, so that the grouting position of the grouting pipe is adjusted.

[0038] Furthermore, the grouting assembly further includes a force applying rod 123 , which is fixedly connected to the U-shaped frame 107 and is located on an outer side wall of the U-shaped frame 107 .

[0039] In this embodiment, by arranging the force rod 123 on the outer side of the U-shaped frame 107 , a worker can use the force rod 123 to conveniently move the U-shaped frame 107 .

[0040] Furthermore, the high-pressure jet grouting equipment also includes a first motor 124, a driving rod 125 and a plurality of first stirring rods 126, wherein the first motor 124 is fixedly connected to the storage box 102 and is located below the storage box 102, the driving rod 125 is connected to the output end of the first motor 124, and the plurality of first stirring rods 126 are all fixedly connected to the driving rod 125 and are all located on the outer side wall of the driving rod 125; the high-pressure jet grouting equipment also includes a second motor 127, a rotating shaft 128, two connecting frames 129, a plurality of second stirring rods 130, Two scrapers 131 and a connecting ring 132, the second motor 127 is fixedly connected to the storage box 102 and is located above the storage box 102, the rotating shaft 128 is connected to the output end of the second motor 127 and is located in the storage box 102, the two connecting frames 129 are fixedly connected to the rotating shaft 128, the two scrapers 131 are fixedly connected to the corresponding connecting frames 129, the multiple second stirring rods 130 are fixedly connected to the corresponding connecting frames 129, and the connecting rings 132 are fixedly connected to the two connecting frames 129.

[0041] In this embodiment, the driving rod 125 is controlled to rotate by the first motor 124, and the driving rod 125 drives the multiple first stirring rods 126 to rotate. The second motor 127 is started to control the rotation of the rotating shaft 128, and the rotating shaft 128 drives the connecting frame 129 to rotate. The connecting member simultaneously drives the scraper 131 and the second stirring rod 130 to rotate, wherein the first stirring rod 126 and the second stirring rod 130 rotate alternately to stir the slurry. The first stirring rod 126 and the second stirring rod 130 with opposite rotation directions respectively drive the slurry to move upward and downward, so that the slurry in the storage box 102 is evenly stirred. At the same time, the rotation of the scraper 131 will scrape off the slurry attached to the inner wall of the storage box 102 to participate in the stirring.

[0042] Furthermore, the high-pressure jet grouting equipment also includes a plurality of groups of support components, and the plurality of groups of support components are all connected to the base plate 101 and are all located below the base plate 101 .

[0043] In this embodiment, by setting a plurality of groups of the support components under the base plate 101, the base plate 101 can be limited by the support components to prevent the moving wheels 105 from continuing to roll on the ground, causing the base plate 101 to easily deviate and preventing the device from continuing to move.

[0044] Furthermore, the support assembly includes a hydraulic cylinder 133, a contact plate 136 and a plurality of fixing pins 135, the hydraulic cylinder 133 is fixedly connected to the base plate 101 and is located below the base plate 101, the contact plate 136 is connected to the output end of the hydraulic cylinder 133, and the plurality of fixing pins 135 are all fixedly connected to the contact plate 136 and are all located below the contact plate 136.

[0045] In this embodiment, after the equipment is moved into place, the multiple hydraulic cylinders 133 under the base plate 101 are started, and each of the hydraulic cylinders 133 drives the contact plate 136 to move downward until the multiple fixing pins 135 under the contact plate 136 are inserted into the ground. At this time, the multiple moving wheels 105 under the base plate 101 leave the ground, making it difficult for the base plate 101 to move, thereby placing the equipment in place.

[0046] Furthermore, the high-pressure jet grouting equipment also includes a plurality of cleaning components, and the plurality of cleaning components are all connected to the bottom plate 101 and are all located below the bottom plate 101 .

[0047] In this embodiment, by disposing a plurality of cleaning components below the bottom plate 101 , the cleaning components can be used to clean the surface of the moving wheel 105 , thereby preventing the moving wheel 105 from being covered with foreign matter, thereby ensuring stable movement of the bottom plate 101 .

[0048] Furthermore, the cleaning assembly includes a support plate 134, a slide rod 137, a cleaning plate 138 and a reset spring 139. The support plate 134 is fixedly connected to the base plate 101 and is located below the base plate 101. The slide rod 137 is slidably connected to the support plate 134 and passes through the support plate 134. The cleaning plate 138 is fixedly connected to the slide rod 137 and is located on the outside of the moving wheel 105. The two ends of the reset spring 139 are fixedly connected to the support plate 134 and the slide rod 137, respectively.

[0049] In this embodiment, when the moving wheel 105 rolls on the ground and there are foreign objects on the surface of the moving wheel 105, the cleaning plate 138 will contact the foreign objects on the surface of the moving wheel 105 and scrape the surface of the moving wheel 105. At the same time, the cleaning plate 138 will drive the slide bar 137 to slide on the support plate 134, and the return spring 139 will expand and contract until the foreign objects on the surface of the moving wheel 105 are scraped off. The above method can ensure the stable movement of the base plate 101.

[0050] The present invention also provides a high-pressure jet grouting method, comprising the following steps:

[0051] S100: Conduct detailed geological survey to understand the geological conditions, soil layer distribution and groundwater level information of the construction area;

[0052] S200: Design a reasonable high-pressure jet grouting scheme based on the information, including parameters such as grouting pipe type, grouting material, grouting pressure, grouting volume, etc.

[0053] S300: Perform drilling operations in the construction area using a drilling rig;

[0054] S400: moving the grouting equipment to the drilling hole, and fixing the grouting pipe on the connector 122 of the delivery pipe 106;

[0055] S500: Using the electric screw 108 and the guide rod 110 to drive the movable plate 111 to move downward, and the movable plate 111 delivers the grouting pipe into the grouting hole;

[0056] S600: Start the high-pressure pump 104 to transport the slurry in the storage box 102 into the grouting pipe, and the slurry is ejected in the form of high-pressure flow to impact and cut the soil;

[0057] S700: After the grouting construction is completed, quality inspection is carried out.

[0058] In this embodiment, a detailed geological survey is first conducted to understand the geological conditions, soil layer distribution and groundwater level information of the construction area, and then a reasonable high-pressure jet grouting scheme is designed based on the information, including parameters such as grouting pipe type, grouting material, grouting pressure, and grouting volume. A drilling rig is then used to perform drilling operations in the construction area, and then the grouting equipment is moved to the borehole, and the grouting pipe is fixed on the connecting head 122 of the delivery pipe 106. The electric screw 108 and the guide rod 110 are used to drive the movable plate 111 downward, and the movable plate 111 delivers the grouting pipe into the grouting hole, and then the high-pressure pump 104 is started to transport the slurry in the storage box 102 into the grouting pipe, and the slurry is ejected in the form of a high-pressure flow to impact and cut the soil. After the grouting construction is completed, quality inspection is carried out.

[0059] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A high-pressure jet grouting equipment, characterized in that: It includes a bottom plate, a material storage box, a feed pipe, a high-pressure pump, a plurality of moving wheels and a grouting assembly, wherein the plurality of moving wheels are connected to the bottom plate and are located below the bottom plate, the material storage box is fixedly arranged above the bottom plate, the feed pipe is connected to the material storage box, the high-pressure pump is fixedly arranged above the bottom plate, the input end of the high-pressure pump is connected to the material storage box, and the grouting assembly is connected to the output end of the high-pressure pump; The grouting assembly includes a connecting head, a delivery pipe, a U-shaped frame, an electric screw, a sleeve, a guide rod, a movable plate and a transverse movement unit. The base plate has a through groove, and the transverse movement unit is arranged above the base plate. The U-shaped frame is connected to the transverse movement unit. The U-shaped frame has an installation groove and a limit groove. The electric screw is rotatably arranged in the installation groove, and the guide rod is fixedly arranged in the limit groove. The sleeve is sleeved on the outside of the electric screw and is threadedly matched with the electric screw. One end of the movable plate is fixedly connected to the sleeve, and the other end of the movable plate is slidably connected to the guide rod. One end of the delivery pipe is connected to the output end of the high-pressure pump, and the other end of the delivery pipe is fixedly connected to the movable plate and movably passes through the U-shaped frame. The connecting head is fixedly connected to the delivery pipe.

2. The high-pressure jet grouting equipment according to claim 1, characterized in that: The transverse movement unit includes two sliders, two guide rails, a fixed plate, a pull rod, a supporting block and a supporting spring. The two guide rails are fixedly connected to the base plate and are located above the base plate. The two sliders are fixedly connected to the U-shaped frame and are respectively located in the corresponding guide rails. The fixed plate is fixedly connected to the U-shaped frame. The pull rod movably passes through the fixed plate. The supporting block is fixedly connected to the pull rod. The two ends of the supporting spring are respectively fixedly connected to the fixed plate and the pull rod and are sleeved on the outside of the pull rod. The base plate has a plurality of fixing holes.

3. The high pressure jet grouting equipment according to claim 2, characterized in that: The grouting assembly also includes a force applying rod, which is fixedly connected to the U-shaped frame and is located on the outer side wall of the U-shaped frame.

4. The high pressure jet grouting equipment according to claim 1, characterized in that: The high-pressure jet grouting equipment also includes a first motor, a driving rod and a plurality of first stirring rods. The first motor is fixedly connected to the storage box and is located below the storage box. The driving rod is connected to the output end of the first motor. The plurality of first stirring rods are fixedly connected to the driving rod and are located on the outer side wall of the driving rod.

5. The high pressure jet grouting equipment according to claim 4, characterized in that: The high-pressure jet grouting equipment also includes a second motor, a rotating shaft, two connecting frames, a plurality of second stirring rods, two scrapers and a connecting ring. The second motor is fixedly connected to the storage box and is located above the storage box. The rotating shaft is connected to the output end of the second motor and is located in the storage box. The two connecting frames are fixedly connected to the rotating shaft, the two scrapers are respectively fixedly connected to the corresponding connecting frames, the plurality of second stirring rods are respectively fixedly connected to the corresponding connecting frames, and the connecting rings are fixedly connected to the two connecting frames.

6. The high pressure jet grouting equipment according to claim 1, characterized in that: The high-pressure jet grouting equipment also includes a plurality of groups of support components, and the plurality of groups of support components are all connected to the base plate and are all located below the base plate.

7. The high-pressure jet grouting equipment according to claim 6, characterized in that: The support assembly includes a hydraulic cylinder, a support plate and a plurality of fixing pins. The hydraulic cylinder is fixedly connected to the base plate and is located below the base plate. The support plate is connected to the output end of the hydraulic cylinder. The plurality of fixing pins are fixedly connected to the support plate and are located below the support plate.

8. A high-pressure jet grouting method, applied to the high-pressure jet grouting equipment as claimed in claim 1, characterized in that: The steps include: Conduct detailed geological surveys to understand the geological conditions, soil layer distribution and groundwater level information of the construction area; Design a reasonable high-pressure jet grouting plan based on the information, including parameters such as grouting pipe type, grouting material, grouting pressure, grouting volume, etc. Use drilling rigs to perform drilling operations in the construction area; Move the grouting equipment to the drilling hole, and fix the grouting pipe on the connecting head of the conveying pipe; The movable plate is driven downward by the electric screw and the guide rod, and the movable plate delivers the grouting pipe into the grouting hole; The high-pressure pump is started to transport the slurry in the storage box into the grouting pipe, and the slurry is ejected in the form of high-pressure flow to impact and cut the soil; After the grouting construction is completed, quality inspection will be carried out.

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