High pressure jet grouting method and apparatus

Abstract

The application relates to the technical field of building construction, in particular to a high-pressure jet grouting method and equipment thereof; the equipment comprises a bottom plate, a storage tank, a feeding pipe, a high-pressure pump, a plurality of moving wheels and a grouting assembly; the grouting assembly comprises a connecting head, a conveying pipe, a U-shaped frame, an electric screw rod, a sleeve, a guide rod, a moving plate and a horizontal moving unit; the bottom plate is provided with a through groove; the horizontal moving unit is arranged above the bottom plate; the U-shaped frame is connected with the horizontal moving unit; the electric screw rod is rotationally arranged in a mounting groove; the guide rod is fixedly arranged in a limiting groove; the sleeve is arranged on the outside of the electric screw rod; 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 connecting head is fixedly connected with the conveying pipe; through the arrangement of the above structure, the position of the grouting pipe can be adjusted conveniently and quickly, and the working efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, and particularly relates to a high-pressure jet grouting method and equipment thereof. BACKGROUND

[0002] The high-pressure jet grouting technology is widely applied in the foundation reinforcement and anti-seepage engineering of buildings, and is a construction process combining high-pressure hydraulic jet cutting technology and grouting technology. With the innovation of technology and improvement of equipment, the high-pressure jet grouting technology has the characteristics of fast progress, high efficiency and strong adaptability.

[0003] At present, the general grouting method in the building is to use a high-pressure jet grouting machine to perform grouting. When the position of the grouting pipe is adjusted, personnel need to move the position of the equipment and manually adjust the position of the grouting pipe.

[0004] However, in the above existing method, the step of manually adjusting the position of the grouting pipe is relatively cumbersome, and a lot of manpower and time are needed, and the work efficiency is low. SUMMARY

[0005] The present application aims to provide a high-pressure jet grouting method and equipment thereof, and aims to solve the technical problem that the step of manually adjusting the position of the grouting pipe is relatively cumbersome, a lot of manpower and time are needed, and the work efficiency is low.

[0006] To achieve the above-mentioned purpose, a high-pressure jet grouting equipment is adopted, which comprises a bottom plate, a storage tank, a feeding pipe, a high-pressure pump, a plurality of moving wheels and a grouting assembly. The plurality of moving wheels are connected with the bottom plate and located below the bottom plate. The storage tank is fixedly arranged above the bottom plate. The feeding pipe is connected with the storage tank. The high-pressure pump is fixedly arranged above the bottom plate. The input end of the high-pressure pump is connected with the storage tank. The grouting assembly is connected with the output end of the high-pressure pump.

[0007] The grouting assembly comprises a connecting head, a conveying pipe, a U-shaped frame, an electric screw rod, a sleeve, a guide rod, a moving plate and a horizontal moving unit. The bottom plate has a through groove. The horizontal moving unit is arranged above the bottom plate. The U-shaped frame is connected with the horizontal moving unit. The U-shaped frame has a mounting groove and a limiting groove. The electric screw rod is rotationally arranged in the mounting groove. The guide rod is fixedly arranged in the limiting groove. The sleeve is sleeved on the outside of the electric screw rod and threadedly cooperates with the electric screw rod. 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 movably penetrates through the U-shaped frame. The connecting head is fixedly connected with the conveying pipe.

[0008] The horizontal moving unit comprises two sliding blocks, two guide rails, a fixed plate, a pull rod, a bearing block and a bearing spring.

[0009] The grouting assembly further comprises a force applying rod, which is fixedly connected with the U-shaped frame and located at the outer side wall of the U-shaped frame.

[0010] The high-pressure jet grouting device further comprises a first motor, a driving rod and a plurality of first stirring rods.

[0011] The high-pressure jet grouting device further comprises a second motor, a rotating shaft, two connecting frames, a plurality of second stirring rods, two scrapers and a connecting ring.

[0012] The high-pressure jet grouting device further comprises a plurality of support assemblies.

[0013] The support assembly comprises a hydraulic cylinder, a support plate and a plurality of fixing pins.

[0014] The application further provides a high-pressure jet grouting method.

[0015] Detailed geological survey is conducted to understand the geological conditions, soil layer distribution and underground water level information of the construction area.

[0016] According to the information, a reasonable high-pressure jet grouting scheme is designed, including grouting pipe type, grouting material, grouting pressure, grouting quantity and other parameters;

[0017] Drilling is carried out in the construction area by using a drilling machine;

[0018] The grouting equipment is moved to the drilling hole, and the grouting pipe is fixed on the connecting head of the conveying pipe;

[0019] The moving plate is driven to move downward by the electric screw rod and the guide rod, and the moving plate sends the grouting pipe into the grouting hole;

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

[0021] After the grouting construction is completed, quality detection is carried out.

[0022] The high-pressure jet grouting method and equipment of the application, the storage tank stores the slurry required for grouting, during grouting operation, the bottom plate is moved by force, the bottom plate is moved to the grouting position, the connecting head is moved by the horizontal moving assembly, the connecting head is located above the grouting hole, then the grouting pipe is fixed on the connecting head, the conveying pipe is communicated with the grouting pipe, then the electric screw rod in the mounting groove is started, the sleeve is driven to move downward by the electric screw rod, then the moving plate drives the connecting head to move downward, the grouting pipe gradually enters the grouting hole, at the same time, the conveying pipe slides on the U-shaped frame until the grouting pipe is sent into the grouting hole, then the high-pressure pump is started, the high-pressure pump extracts the slurry in the storage tank, the slurry is conveyed through the conveying pipe, then enters the grouting pipe below the connecting head, the grouting pipe conveys the slurry into the grouting hole, in the above process, compared with the traditional layout equipment, it is more convenient and fast, and the manpower is greatly saved, by the above method, the manpower and time can be greatly reduced, the position of the grouting pipe is adjusted conveniently and quickly, and the work efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 It is a structural schematic view of the high-pressure jet grouting equipment of the application.

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

[0026] Figure 3 is a structural front view of the storage tank of the present application.

[0027] Figure 4 is a structural front view of the high-pressure jet grouting equipment of the present application. Figure 2 is a structural cross-sectional view of A-A line of the high-pressure jet grouting equipment of the present application.

[0028] Figure 5 is a structural cross-sectional view of B-B line of the high-pressure jet grouting equipment of the present application. Figure 3

[0029] Figure 6 is a partial structural enlarged view of C of the high-pressure jet grouting equipment of the present application. Figure 1

[0030] Figure 7 is a step flow chart of the high-pressure jet grouting method of the present application.

[0031] 101 - base plate, 102 - storage tank, 103 - feeding pipe, 104 - high-pressure pump, 105 - moving wheel, 106 - conveying pipe, 107 - U-shaped frame, 108 - electric screw rod, 109 - sleeve, 110 - guide rod, 111 - moving plate, 112 - through groove, 113 - mounting groove, 114 - limiting groove, 115 - sliding block, 116 - guide rail, 117 - fixed plate, 118 - pull rod, 119 - abutting block, 120 - abutting spring, 121 - fixed hole, 122 - connecting head, 123 - force applying 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 - supporting plate, 135 - fixed pin, 136 - connecting plate, 137 - sliding rod, 138 - cleaning plate, 139 - return spring. DETAILED DESCRIPTION

[0032] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals are used throughout to designate the same or similar elements or elements having the same or similar functions. The embodiments described below through reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0033] Please refer to Figures 1-6 ​​The application provides high-pressure jet grouting equipment, which comprises a bottom plate 101, a storage tank 102, a feeding pipe 103, a high-pressure pump 104, a plurality of moving wheels 105 and a grouting assembly, the moving wheels 105 are connected with the bottom plate 101 and are located below the bottom plate 101, the storage tank 102 is fixedly arranged above the bottom plate 101, the feeding pipe 103 is connected with the storage tank 102, the high-pressure pump 104 is fixedly arranged above the bottom plate 101, an input end of the high-pressure pump 104 is connected with the storage tank 102, and the grouting assembly is connected with an output end of the high-pressure pump 104.

[0034] The grouting assembly comprises a connecting head 122, a conveying pipe 106, a U-shaped frame 107, an electric screw rod 108, a sleeve 109, a guide rod 110, a moving plate 111 and a horizontal moving unit, the bottom plate 101 is provided with a through groove 112, the horizontal moving unit is arranged above the bottom plate 101, the U-shaped frame 107 is connected with the horizontal moving unit, the U-shaped frame 107 is provided with a mounting groove 113 and a limiting groove 114, the electric screw rod 108 is rotationally arranged in the mounting groove 113, the guide rod 110 is fixedly arranged in the limiting groove 114, the sleeve 109 is sleeved on the outer portion of the electric screw rod 108 and is threadedly matched with the electric screw rod 108, one end of the moving plate 111 is fixedly connected with the sleeve 109, the other end of the moving plate 111 is slidably connected with the guide rod 110, one end of the conveying pipe 106 is connected with the output end of the high-pressure pump 104, the other end of the conveying pipe 106 is fixedly connected with the moving plate 111 and movably penetrates through the U-shaped frame 107, and the connecting head 122 is fixedly connected with the conveying pipe 106.

[0035] In the embodiment, the slurry tank 102 stores the slurry required for grouting. When grouting is performed, the bottom plate 101 is moved to the grouting position by pushing. The connector 122 is moved by the horizontal moving assembly so that the connector 122 is above the grouting hole. Then, the grouting pipe is fixed on the connector 122. The delivery pipe 106 communicates with the grouting pipe. The electric screw rod 108 in the mounting groove 113 is started. The sleeve 109 is driven downward by the electric screw rod 108. Then, the moving plate 111 drives the connector 122 to move downward. The grouting pipe gradually enters the grouting hole. At the same time, the delivery pipe 106 slides on the U-shaped frame 107 until the grouting pipe is sent into the grouting hole. Then, the high-pressure pump 104 is started. The high-pressure pump 104 extracts the slurry in the slurry tank 102. The slurry is delivered through the delivery pipe 106 and then enters the grouting pipe below the connector 122. The grouting pipe delivers the slurry to the grouting hole. In the above process, compared with the traditional laying equipment, the process is more convenient and fast, and the manpower is greatly saved. Through the above mode, the manpower and time can be greatly reduced. The position of the grouting pipe is adjusted conveniently and fast, and the work efficiency is greatly improved.

[0036] Further, the horizontal moving unit includes two sliding blocks 115, two guide rails 116, a fixed plate 117, a pull rod 118, an abutting block 119 and an abutting spring 120. The two guide rails 116 are fixedly connected with the bottom plate 101 and are located above the bottom plate 101. The two sliding blocks 115 are fixedly connected with the U-shaped frame 107 and are located in the corresponding guide rails 116. The fixed plate 117 is fixedly connected with the U-shaped frame 107. The pull rod 118 movably penetrates through the fixed plate 117. The abutting block 119 is fixedly connected with the pull rod 118. The abutting spring 120 has two ends fixedly connected with the fixed plate 117 and the pull rod 118 and is sleeved outside the pull rod 118. The bottom plate 101 has a plurality of fixing holes 121.

[0037] In the embodiment, when the position of the grouting pipe is adjusted, the pull rod 118 is pulled on the support plate 134. The pull rod 118 drives the abutting block 119 to move away from the fixing hole 121. The abutting spring 120 is stretched. Then, the U-shaped frame 107 is moved by force. The sliding block 115 below the U-shaped frame 107 slides in the guide rail 116. After moving appropriately, the pull rod 118 is released. The abutting spring 120 drives the abutting block 119 into the corresponding fixing hole 121 by the elastic force. The U-shaped frame 107 is fixed again. The position of the grouting pipe for grouting is adjusted.

[0038] Further, the grouting assembly further comprises a force applying rod 123, which is fixedly connected with the U-shaped frame 107 and located at the outer side wall of the U-shaped frame 107.

[0039] In the embodiment, the force applying rod 123 is arranged at the outer side of the U-shaped frame 107, so that the staff can conveniently move the U-shaped frame 107 by using the force applying rod 123.

[0040] Further, the high-pressure jet grouting equipment further comprises a first motor 124, a driving rod 125 and a plurality of first stirring rods 126, the first motor 124 is fixedly connected with the storage tank 102 and located below the storage tank 102, the driving rod 125 is connected with the output end of the first motor 124, and a plurality of the first stirring rods 126 are fixedly connected with the driving rod 125 and located at the outer side wall of the driving rod 125; the high-pressure jet grouting equipment further comprises 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 with the storage tank 102 and located above the storage tank 102, the rotating shaft 128 is connected with the output end of the second motor 127 and located in the storage tank 102, two connecting frames 129 are fixedly connected with the rotating shaft 128, two scrapers 131 are respectively fixedly connected with the corresponding connecting frames 129, a plurality of second stirring rods 130 are respectively fixedly connected with the corresponding connecting frames 129, and the connecting ring 132 is fixedly connected with the two connecting frames 129.

[0041] In the embodiment, the first motor 124 is used to control the rotation of the driving rod 125, the driving rod 125 drives a plurality of the first stirring rods 126 to rotate, the second motor 127 is started to control the rotation of the rotating shaft 128, the rotating shaft 128 drives the connecting frames 129 to rotate, and the connecting frames simultaneously drive the scrapers 131 and the second stirring rods 130 to rotate, the first stirring rods 126 and the second stirring rods 130 are staggered to stir the slurry, the first stirring rods 126 and the second stirring rods 130 with opposite rotation directions respectively drive the slurry to move upward and downward, so that the slurry in the storage tank 102 is uniformly stirred, and the rotation of the scrapers 131 scrapes the slurry attached to the inner wall of the storage tank 102 to participate in the stirring.

[0042] Further, the high-pressure jet grouting equipment further comprises a plurality of support assemblies, which are connected with the bottom plate 101 and located below the bottom plate 101.

[0043] In the embodiment, by arranging a plurality of support assemblies under the bottom plate 101, the movement of the bottom plate 101 can be limited by the support assemblies, so that the bottom plate 101 is prevented from being easily deviated due to the continuous rolling of the moving wheels 105 on the ground, and the device is prevented from continuously moving.

[0044] Further, the support assembly comprises a hydraulic cylinder 133, a contact plate 136 and a plurality of fixing pins 135, the hydraulic cylinder 133 is fixedly connected with the bottom plate 101 and located below the bottom plate 101, the contact plate 136 is connected with the output end of the hydraulic cylinder 133, and the plurality of fixing pins 135 are all fixedly connected with the contact plate 136 and located below the contact plate 136.

[0045] In the embodiment, after the device is moved to the position, by starting a plurality of hydraulic cylinders 133 under the bottom plate 101, each hydraulic cylinder 133 drives the contact plate 136 to move downward until the plurality of fixing pins 135 below the contact plate 136 are inserted into the ground, at this time, the plurality of moving wheels 105 under the bottom plate 101 are separated from the ground, so that the bottom plate 101 is not easily moved, thereby the device is arranged in place.

[0046] Further, the high-pressure jet grouting device further comprises a plurality of cleaning assemblies, and the plurality of cleaning assemblies are all connected with the bottom plate 101 and located below the bottom plate 101.

[0047] In the embodiment, by arranging a plurality of cleaning assemblies under the bottom plate 101, the surface of the moving wheels 105 can be cleaned by the cleaning assemblies, so that the moving wheels 105 are prevented from having foreign matters, and the stable movement of the bottom plate 101 is ensured.

[0048] Further, the cleaning assembly comprises a support plate 134, a sliding rod 137, a cleaning plate 138 and a return spring 139, the support plate 134 is fixedly connected with the bottom plate 101 and located below the bottom plate 101, the sliding rod 137 is slidingly connected with the support plate 134 and penetrates through the support plate 134, the cleaning plate 138 is fixedly connected with the sliding rod 137 and located outside the moving wheels 105, and the two ends of the return spring 139 are fixedly connected with the support plate 134 and the sliding rod 137 respectively.

[0049] In the embodiment, when the mobile wheel 105 rolls on the ground, the foreign matter on the surface of the mobile wheel 105 is contacted by the cleaning plate 138 and scraped off, and the cleaning plate 138 drives the sliding rod 137 to slide on the supporting plate 134, and the reset spring 139 is stretched and contracted until the foreign matter on the surface of the mobile wheel 105 is scraped off completely. In this way, the stable movement of the bottom plate 101 is ensured.

[0050] The application further provides a high-pressure jet grouting method, comprising the following steps:

[0051] S100: detailed geological survey is performed to understand geological conditions, soil layer distribution and underground water level information of a construction area;

[0052] S200: a reasonable high-pressure jet grouting scheme is designed according to the information, including parameters such as grouting pipe type, grouting material, grouting pressure, grouting amount, etc.

[0053] S300: drilling is performed in the construction area by using a drilling machine;

[0054] S400: the grouting equipment is moved to the drilling hole, and the grouting pipe is fixed on the connecting head 122 of the conveying pipe 106;

[0055] S500: the mobile plate 111 is driven to move downward by using the electric screw rod 108 and the guide rod 110, and the grouting pipe is sent into the grouting hole by the mobile plate 111;

[0056] S600: the high-pressure pump 104 is started to convey the slurry in the storage tank 102 into the grouting pipe, and the slurry is jetted out in the form of high-pressure flow to impact and cut the soil body;

[0057] S700: quality detection is performed after the grouting construction is completed.

[0058] In the embodiment, first, detailed geological survey is performed to understand geological conditions, soil layer distribution and underground water level information of a construction area, then a reasonable high-pressure jet grouting scheme is designed according to the information, including parameters such as grouting pipe type, grouting material, grouting pressure, grouting amount, etc., drilling is performed in the construction area by using a drilling machine, the grouting equipment is moved to the drilling hole, and the grouting pipe is fixed on the connecting head 122 of the conveying pipe 106, the mobile plate 111 is driven to move downward by using the electric screw rod 108 and the guide rod 110, the grouting pipe is sent into the grouting hole by the mobile plate 111, the high-pressure pump 104 is started to convey the slurry in the storage tank 102 into the grouting pipe, and the slurry is jetted out in the form of high-pressure flow to impact and cut the soil body, and quality detection is performed after the grouting construction is completed.

[0059] The above-described embodiments are merely intended to illustrate the present application, but are not intended to limit the scope of the present application. Those skilled in the art can understand that all or part of the above-described embodiments can be implemented, and equivalent changes made to the present application according to the claims, still belong to the scope of the present application.

Claims

1. A high-pressure jet grouting device, characterized in that, The device includes a base plate, a storage tank, a feed pipe, a high-pressure pump, multiple moving wheels, and a grouting assembly. The multiple moving wheels are all connected to the base plate and are all located below the base plate. The storage tank is fixedly installed above the base plate. The feed pipe is connected to the storage tank. The high-pressure pump is fixedly installed above the base plate. The input end of the high-pressure pump is connected to the storage tank. The grouting assembly is connected to the output end of the high-pressure pump. The grouting assembly includes a connector, a delivery pipe, a U-shaped frame, an electric screw, a sleeve, a guide rod, a moving plate, and a transverse unit. The base plate has a through groove, the transverse unit is disposed above the base plate, the U-shaped frame is connected to the transverse unit, the U-shaped frame has an installation groove and a limiting groove, the electric screw is rotatably disposed in the installation groove, the guide rod is fixedly disposed in the limiting groove, the sleeve is sleeved on the outside of the electric screw and threadedly engaged with the electric screw, one end of the moving plate is fixedly connected to the sleeve, the other end of the moving 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, the other end of the delivery pipe is fixedly connected to the moving plate and movably passes through the U-shaped frame, and the connector is fixedly connected to the delivery pipe. The transverse unit includes two sliders, two guide rails, a fixed plate, a pull rod, a stop block, and a stop spring. Both guide rails are fixedly connected to the base plate and are located above the base plate. Both sliders are fixedly connected to the U-shaped frame and are located inside 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 stop block is fixedly connected to the pull rod. The two ends of the stop spring are fixedly connected to the fixed plate and the pull rod, respectively, and are sleeved on the outside of the pull rod. The base plate has multiple fixing holes. The high-pressure jet grouting equipment also includes a first motor, a drive rod, and multiple first stirring rods. The first motor is fixedly connected to the storage tank and is located below the storage tank. The drive rod is connected to the output end of the first motor. The multiple first stirring rods are all fixedly connected to the drive rod and are all located on the outer side wall of the drive rod. The high-pressure jet grouting equipment also includes a second motor, a rotating shaft, two connecting frames, multiple second stirring rods, two scrapers, and connecting rings. The second motor is fixedly connected to the storage tank and located above the storage tank. The rotating shaft is connected to the output end of the second motor and located inside the storage tank. Both connecting frames are fixedly connected to the rotating shaft. The two scrapers are respectively fixedly connected to their corresponding connecting frames. The multiple second stirring rods are respectively fixedly connected to their corresponding connecting frames. The connecting rings are all fixedly connected to the two connecting frames.

2. The high-pressure jet grouting equipment as described in claim 1, characterized in that, The grouting assembly also includes a force-applying rod, which is fixedly connected to the U-shaped frame and located on the outer side wall of the U-shaped frame.

3. The high-pressure jet grouting equipment as described in claim 1, characterized in that, The high-pressure jet grouting equipment also includes multiple sets of support components, all of which are connected to the base plate and are located below the base plate.

4. The high-pressure jet grouting equipment as described in claim 3, characterized in that, The support assembly includes a hydraulic cylinder, a support plate, and multiple fixing pins. The hydraulic cylinder is fixedly connected to the base plate and located below the base plate. The support plate is connected to the output end of the hydraulic cylinder. The multiple fixing pins are all fixedly connected to the support plate and located below the support plate.

5. A high-pressure jet grouting method, applied to the high-pressure jet grouting equipment as described in claim 1, characterized in that, Includes the following steps: Conduct a detailed geological survey to understand the geological conditions, soil layer distribution, and groundwater level information of the construction area; Based on the information, a reasonable high-pressure jet grouting scheme was designed, including the type of grouting pipe, grouting material, grouting pressure, and grouting volume parameters; Drilling operations are carried out in the construction area using a drilling rig; Move the grouting equipment to the drilling site and fix the grouting pipe to the connector of the delivery pipe; The electric lead screw and the guide rod drive the moving plate to move downward, and the moving plate sends the grouting pipe into the grouting hole; The high-pressure pump is started to deliver the slurry in the storage tank into the grouting pipe. The slurry is then ejected in a high-pressure stream to impact and cut the soil. After the grouting work is completed, a quality inspection will be conducted.

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