Grouting system and method for cover-weight-free consolidation grouting construction

Abstract

The invention discloses a grouting system and method for cover-weight-free consolidation grouting construction, and belongs to the technical field of cover-weight-free consolidation grouting construction.The grouting system comprises a slurry making machine and an air compressor used for conveying slurry, a discharging opening of the slurry making machine is connected with a grouting pipe, and the end of the grouting pipe is fixedly connected with a grouting plug; a liquid injection pipe is mounted at the upper end of the pulping machine; a flow meter for monitoring slurry flow is mounted on the grouting pipe, a stock bin is fixedly supported and mounted on the outer side of the upper end of the slurry making machine through a supporting frame, a discharging part is integrally arranged at the lower end of the stock bin, and a quantitative feeding mechanism is arranged on the inner side of the discharging part. According to the grouting system and method for cover-weight-free consolidation grouting construction, the slurry flow can be monitored in real time in the grouting process, the water-cement ratio of slurry can be adjusted in real time according to the grouting requirement in the slurry making process, and the grouting efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of uncovered weight consolidation grouting construction, and specifically to a grouting system and method for uncovered weight consolidation grouting construction. Background Technology

[0002] Conventional consolidation grouting requires pouring 3m to 6m thick concrete first, and then carry out consolidation grouting construction after its strength reaches more than 50% of the design strength. Since there is enough concrete cover weight during grouting, the grouting pressure can be increased, and the surface rock mass can be compressed, thereby blocking the cracks in the leaking rock mass. However, this type of grouting will occupy the concrete pouring construction site. Uncovered consolidation grouting is to directly grout on the foundation rock surface without concrete pouring. It is mainly suitable for situations where the grouting pressure is small and the construction period is tight or the rock is good. The proposal and large-scale implementation of uncovered consolidation grouting will significantly reduce the interference contradiction between foundation treatment and concrete pouring. Grouting construction can be carried out after the foundation surface is excavated and cleared. When the grouting construction of a certain dam section is completed and approved by inspection, the concrete pouring construction can be carried out continuously in this dam section, and the situation of too long interval between concrete layers will not occur.

[0003] The prior art (application number: 202321052941.0, Chinese patent with application date of 2023-05-05) discloses a grouting device, including a frame car and a mixing cylinder on the frame car for making slurry, the mixing cylinder is provided with an operating box which is interconnected with the inside and is integrally formed, the operating box is provided with a metering cylinder for placing raw materials, and a material guiding mechanism for controlling the quantitative discharge of raw materials is provided in the operating box; the material guiding mechanism includes a disc driven by an external driving device, and a metering seat movable in the metering cylinder. Through the material guiding mechanism and metering cylinder, the space inside the cylinder is divided by the metering cylinder, so that different raw materials can be stored separately. At the same time, the metering seat can be synchronously driven to perform reciprocating lifting and lowering operations through the operation of the material guiding mechanism. Due to the inconsistency of the inclined surface of the metering seat, it is ensured that during the discharge, the metering seat will discharge different raw materials in inconsistent amounts, thereby achieving the purpose of precise proportioning;

[0004] Prior art (application number: 202123191861.7, Chinese patent with application date of 2021-12-19) discloses a mixing device for quantitatively adding admixtures for concrete batching research and development, including a mixing box and a support column arranged at the bottom of the mixing box, the top of the mixing box is provided with a placement plate supported and fixed by a plurality of L-shaped support frames, the top of the placement plate is provided with a plurality of feed tanks, the top of the feed tank is provided with a feed port, the inside of the feed tank is provided with an inner tank matching the size of the feed port opening, the inside of the inner tank is provided with a moving component, the outside of the feed tank is provided with a connector, and the inside of the connector is provided with a quantitative control mechanism driven by a servo motor arranged on its side. The operation of the internal parts of the quantitative control mechanism can be controlled by the servo motor, and the flow rate of the additives in the feed tank can be freely controlled, thereby improving the research and development efficiency of concrete batching;

[0005] Although the existing grouting system can achieve quantitative feeding during the working process, it cannot automatically adjust the slurry water-cement ratio according to the grouting effect, and the set quantitative feeding structure often reduces the smoothness of material feeding, which easily leads to blockage of the material port, thus affecting the continuous and accurate feeding of subsequent materials, and there are certain usage defects. SUMMARY OF THE INVENTION

[0006] The purpose of the present invention is to provide a grouting system and method for uncapped heavy consolidation grouting construction, so as to solve the problem that the grouting system in the current market can achieve quantitative feeding during the working process, but the set quantitative feeding structure often reduces the smoothness of material feeding, which easily leads to blockage of the material port, thereby affecting the continuous and accurate feeding of subsequent materials.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A grouting system for uncovered heavy consolidation grouting construction, comprising a grouting machine and an air compressor for conveying grout, wherein a grouting pipe is connected to a discharge port of the grouting machine, and a grouting plug is fixedly connected to the end of the grouting pipe, and a liquid injection pipe is installed at the upper end of the grouting machine;

[0009] The grouting pipe is equipped with a flow meter for monitoring the slurry flow rate. A silo is fixedly supported and installed on the outer side of the upper end of the pulping machine through a support frame, and a feeding part is integrally provided at the lower end of the silo, and a quantitative feeding mechanism is provided on the inner side of the feeding part. A servo motor is also fixedly installed on the support frame, and a driving component is connected between the servo motor and the quantitative feeding mechanism. The outer side of the silo is symmetrically provided with a material sparse component to avoid material blockage. A mounting frame is fixedly installed at the lower end of the feeding part, and a feeding piece for scattering materials is rotatably installed on the outer side of the mounting frame. During the operation of the quantitative feeding mechanism, the feeding piece is driven to rotate back and forth by the transmission component to achieve uniform feeding.

[0010] Preferably, the quantitative feeding mechanism includes a rotating shaft that is rotatably installed on the unloading part, and a partition is evenly fixedly installed on the outer side of the rotating shaft, and the middle position of the unloading part is arranged in a circular structure, and the end of the partition away from the rotating shaft is slidably attached to the inner wall of the middle position of the unloading part, and the rotating shaft drives the partition to rotate to realize the quantitative feeding of materials.

[0011] Preferably, the driving assembly includes an incomplete gear fixedly mounted on the output end of the servo motor and a transmission gear fixedly mounted on the end of the rotating shaft, and the incomplete gear and the transmission gear are meshed and connected, and the rotating shaft rotates intermittently under the drive of the transmission gear.

[0012] Preferably, the material dispersing assembly includes an adjustment disk fixedly mounted on both ends of the rotating shaft, and the adjustment disk is a polygonal structure, and the outer side of the adjustment disk is evenly fixedly embedded with a first magnetic block, and the outer side of the silo is symmetrically fixedly mounted with a fixing frame, and the fixing frame is penetrated by a material dispersing piece, and the lower end of the material dispersing piece is fixedly mounted with a second magnetic block, and the magnetic poles of the opposite surfaces of the first magnetic block and the second magnetic block are opposite.

[0013] Preferably, the upper end of the material dispersing member is attached to the side wall of the silo, and the second magnetic block at the lower end of the material dispersing member is located at the lower end of the fixed frame, and a first spring is fixedly connected between the fixed frame and the second magnetic block, and the material dispersing member is elastically raised and lowered under the magnetic force of the first magnetic block and the second magnetic block, and the material dispersing member knocks the lower part of the silo during the elastic reset process to promote material discharge through vibration.

[0014] Preferably, the transmission assembly includes a lifting rod arranged in the silo, and the upper end of the lifting rod is arranged in a conical structure, and a slide groove is provided through the lifting rod, and a guide rod is slidably provided through the slide groove, and the guide rod is fixedly installed on the inner wall of the unloading part to guide the lifting rod.

[0015] Preferably, a fixing cylinder is sleeved on the outer side of the lower end of the lifting rod, and the fixing cylinder is fixedly installed on the inner wall of the feeding piece, and a second spring is arranged between the lifting rod and the inner wall of the lower end of the fixing cylinder, and the lifting rod is pushed downward during the rotation of the partition.

[0016] Preferably, a spiral guide groove is provided at the lower end of the lifting rod, and a ball is embedded in the upper inner wall of the fixed cylinder, and the ball slides along the guide groove during the lifting of the lifting rod to drive the feeding piece to rotate, and the feeding piece is arranged in a hemispherical structure, and a material spreading hole structure is evenly provided on the feeding piece.

[0017] A grouting method for uncapped weight consolidation grouting construction comprises the following steps:

[0018] S1. Pre-transport concrete materials to the silo for storage, inject water into the pulping machine through the injection pipe, and start the servo motor to drive the shaft to drive the partition to rotate, so as to achieve quantitative feeding of materials and ensure that the water-cement ratio is maintained at 3:1. At the same time, start the mixing mechanism of the pulping machine to achieve material mixing and pulping;

[0019] S2. Grouting: Grout each row of holes in two sequences. Insert the grouting plug into the grouting hole with interference fit. Start the air compressor at the same time, so that the material in the grouting machine enters the grouting plug through the grouting pipe, thereby injecting slurry into the grouting hole;

[0020] S3. The circulating grouting method controls the grouting pressure by adjusting the return grouting flow rate. When the grouting volume is small, the "one-time pressure increase method" can be used to reach the specified grouting pressure as soon as possible. When the grouting volume is large, the "staged pressure increase method" can be used to slowly increase the pressure to the specified grouting pressure. During the circulating grouting, the distance between the grouting pipe outlet and the bottom of the hole is less than or equal to 50cm;

[0021] S4. Principle of grout concentration change: Consolidation grouting uses 42.5-grade ordinary silica cement grout, and the grout changes from thin to thick step by step. The grout water-cement ratio adopts five levels: 3:1, 2:1, 1:1, 0.7:1, and 0.5:1. The water-cement ratio for initial grouting is generally 3:1. The flow meter is used to monitor the grout injection volume in real time.

[0022] Compared with the prior art, the beneficial effects of the present invention are: the grouting system and method for uncapped heavy consolidation grouting construction can monitor the slurry flow in real time during the grouting process, and can adjust the slurry water-cement ratio in real time according to the grouting requirements during the grouting process, thereby effectively improving the grouting efficiency. The specific contents are as follows;

[0023] 1. A flow meter is provided, through which the grouting volume can be monitored in real time, so as to adjust the water-cement ratio of the slurry according to the grouting requirements in the future, so as to improve the grouting construction efficiency;

[0024] 2. A servo motor and a partition are provided. By starting the servo motor, the servo motor drives the incomplete gear to rotate, so that the incomplete gear drives the shaft to rotate intermittently through meshing. By controlling the number of rotations of the shaft, the partition outside the shaft can quantitatively feed the material.

[0025] Furthermore, a material dispersing member is provided, which can drive the adjusting disk to rotate synchronously with the rotation of the rotating shaft, so that the first magnetic block on the outer side of the adjusting disk passes under the second magnetic block intermittently, so that the material dispersing member can be elastically raised and lowered under the action of magnetic force, thereby achieving the knocking of the lower end of the silo, promoting the stable discharge of the material, and avoiding the blockage of the material in the silo and affecting the quantitative delivery accuracy of the material.

[0026] 3. A feeding piece, a fixed cylinder and a lifting rod are provided. As the shaft rotates, the partition will push the lifting rod to adjust the lifting during the feeding process, so that the ball slides along the guide groove, thereby driving the feeding piece to reciprocate. At this time, the feeding piece can evenly scatter the received materials through the centrifugal force to avoid the accumulation of materials in one place after falling and reduce the mixing efficiency. Brief Description of the Figures

[0027] Figure 1 is a schematic diagram of the main structure of the present invention;

[0028] Figure 2 is a schematic diagram of the connection structure between the silo and the feeding piece of the present invention;

[0029] Figure 3 is a schematic diagram of the connection structure between the transmission gear and the rotating shaft of the present invention;

[0030] Figure 4 It is a schematic diagram of the installation structure of the adjustment disk and the material separation member of the present invention;

[0031] Figure 5 It is a schematic diagram of the cross-sectional structure of the silo and the feeding part of the present invention;

[0032] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0033] Figure 7 is a schematic diagram of the installation structure of the lifting rod and the guide rod of the present invention;

[0034] Figure 8 is a schematic diagram of the connection structure between the feeding piece and the fixed cylinder of the present invention;

[0035] Figure 9 This is a schematic diagram of the cross-sectional structure of the feeding piece and the fixing tube of the present invention.

[0036] In the figure: 1, pulping machine; 2, air compressor; 3, grouting pipe; 4, grouting plug; 5, flow meter; 6, support frame; 7, silo; 701, unloading part; 8, servo motor; 9, incomplete gear; 10, rotating shaft; 11, partition; 12, transmission gear; 13, adjustment plate; 14, first magnetic block; 15, fixed frame; 16, material dispersing part; 17, second magnetic block; 18, first spring; 19, mounting frame; 20, feeding part; 21, fixed cylinder; 22, lifting rod; 23, slide groove; 24, guide rod; 25, ball; 26, guide groove; 27, second spring. Specific implementation method

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figure 1-Figure 3 , the present invention provides the following technical solutions: a grouting system for uncovered heavy consolidation grouting construction, comprising a pulping machine 1 and an air compressor 2 for conveying slurry, and the discharge port of the pulping machine 1 is connected to a grouting pipe 3, and the end of the grouting pipe 3 is fixedly connected to a grouting plug 4, and at the same time, a liquid injection pipe is installed on the upper end of the pulping machine 1, and a flow meter 5 for monitoring the flow of slurry is installed on the grouting pipe 3, and a silo 7 is fixedly supported and installed on the outer side of the upper end of the pulping machine 1 through a support frame 6, and a discharge part 701 is integrally provided at the lower end of the silo 7, and a quantitative feeding mechanism is provided on the inner side of the discharge part 701, and a servo motor 8 is also fixedly installed on the support frame 6, and the servo motor 8 and the quantitative feeding mechanism are connected. There is a driving assembly, and the quantitative feeding mechanism includes a rotating shaft 10 that is installed on the unloading part 701 for rotation, and a partition 11 is evenly fixedly installed on the outer side of the rotating shaft 10, and the middle position of the unloading part 701 is arranged in a circular structure, and at the same time, the end of the partition 11 away from the rotating shaft 10 is in contact with the inner wall of the middle position of the unloading part 701 for sliding, and the rotating shaft 10 drives the partition 11 to rotate to realize the quantitative feeding of materials. The driving assembly includes an incomplete gear 9 fixedly installed on the output end of the servo motor 8 and a transmission gear 12 fixedly installed on the end of the rotating shaft 10, and the incomplete gear 9 and the transmission gear 12 are meshed and connected, and the rotating shaft 10 is driven by the transmission gear 12 to rotate intermittently.

[0039] Concrete materials are transported to the silo 7 for storage in advance, water is injected into the pulping machine 1 through the injection pipe, and the servo motor 8 is started at the same time. The servo motor 8 drives the rotating shaft 10 to drive the partition 11 to rotate through the meshing transmission of the incomplete gear 9 and the transmission gear 12 to achieve quantitative feeding of materials and ensure that the water-cement ratio is maintained at 3:1. At the same time, the stirring mechanism of the pulping machine 1 is started to achieve material mixing and slurrying. The stirring mechanism speed should be greater than 1200r / min, and the stirring time should not be less than 30s. The slurry must be stirred evenly, and the parameters such as the slurry density and viscosity are measured and recorded. The grouting plug 4 is inserted into the grouting hole through the interference fit, and the air compressor 2 is started at the same time, so that the material in the pulping machine 1 enters the grouting plug 4 through the grouting pipe 3, thereby injecting slurry into the grouting hole. Each row of holes is grouted in two sequences, and the grouting operation is carried out on the drilling platform. The construction sequence of consolidation grouting follows the principle of gradual densification. First, the first sequence hole is drilled and grouted, and then the second sequence hole is drilled and grouted, and so on. In this way, the grouting effect can be checked in time with the construction of each sequence hole. The grouting pressure of the consolidation grouting hole is tentatively set as: 0.2MPa~0.4MPa for sequence I hole; 0.3MPa~0.5MPa for sequence II hole. The specific grouting pressure should be determined according to the productive grouting test of different bedrock geological conditions. The grouting hole should be grouted in a single hole. When the grouting is mutually connected, the group holes are grouted in parallel, but the number of parallel holes is not more than 3, and the grouting pressure is controlled. During the grouting process, the flow meter 5 can monitor the grouting amount in real time. The circulating grouting method controls the grouting pressure by adjusting the return grouting flow rate. When the grouting volume is small, the "one-time pressure increase method" can be used to reach the specified grouting pressure as soon as possible. When the grouting volume is large, the "staged pressure increase method" can be used to slowly increase to the specified grouting pressure. During the circulating grouting, the distance between the grouting pipe outlet and the bottom of the hole is less than or equal to 50cm.

[0040] Principle of slurry concentration change: Consolidation grouting adopts 42.5 grade general silica cement slurry, and the slurry changes step by step from thin to thick. The slurry water-cement ratio adopts five grades: 3:1, 2:1, 1:1, 0.7:1, and 0.5:1. The water-cement ratio for initial grouting is generally 3:1. When the injection volume of a certain ratio of slurry has reached more than 300L, or the grouting time has reached 30min, and the grouting pressure and injection rate have not changed significantly, the grouting should be replaced with a slurry of one grade of concentration; when the grouting pressure remains unchanged and the injection rate continues to decrease, or when the injection rate remains unchanged and the pressure continues to increase, the water-cement ratio shall not be changed; when the injection rate is greater than 30L / min, it can be thickened by leaps and bounds according to the specific situation. Grouting end standard: Under the maximum design pressure, when the injection rate is less than or equal to 1.0L / min, continue to grout for 30min, and the grouting can be ended.

[0041] Example 2: The technical content disclosed in this embodiment is a further improvement made on the basis of the above-mentioned embodiment 1, and also discloses a material spreading component and a material spreading structure, such as Figure 4-Figure 9As shown, its specific structure is as follows: the outer side of the silo 7 is symmetrically provided with a material dispersing component to avoid material blockage, the lower end of the unloading part 701 is fixedly installed with a mounting frame 19, and the outer side of the mounting frame 19 is rotatably installed with a feeding piece 20 for scattering materials, and during the operation of the quantitative feeding mechanism, the feeding piece 20 is driven by the transmission component to reciprocate to achieve uniform feeding, and the material dispersing component includes an adjusting disk 13 fixedly installed at both ends of the rotating shaft 10, and the adjusting disk 13 is a polygonal structure, and the outer side of the adjusting disk 13 is uniformly fixedly embedded with a first magnetic Block 14, a fixing frame 15 is symmetrically fixedly installed on the outer side of the silo 7, and a material-dispersing piece 16 is penetrated on the fixing frame 15, and a second magnetic block 17 is fixedly installed at the lower end of the material-dispersing piece 16, and the magnetic poles of the first magnetic block 14 and the second magnetic block 17 on the opposite sides are opposite, the upper end of the material-dispersing piece 16 is attached to the side wall of the silo 7, and the second magnetic block 17 at the lower end of the material-dispersing piece 16 is located at the lower end of the fixing frame 15, and a first spring 18 is fixedly connected between the fixing frame 15 and the second magnetic block 17, and the material-dispersing piece 16 is fixedly connected to the first magnetic block 14 and the second magnetic block 17 are elastically lifted and lowered under the action of magnetic force, and the material discharging member 16 knocks the lower part of the silo 7 during the elastic reset process to promote material discharge through vibration. The transmission assembly includes a lifting rod 22 arranged in the silo 7, and the upper end of the lifting rod 22 is arranged in a conical structure, and a slide groove 23 is penetrated on the lifting rod 22, and a guide rod 24 is slidably arranged in the slide groove 23, and the guide rod 24 is fixedly installed on the inner wall of the unloading part 701 to guide the lifting rod 22, and a fixed cylinder 21 is sleeved on the outer side of the lower end of the lifting rod 22, and the fixed cylinder 21 It is fixedly installed on the inner wall of the feeding piece 20, and a second spring 27 is arranged between the lifting rod 22 and the inner wall of the lower end of the fixed cylinder 21. At the same time, the lifting rod 22 is pushed downward during the rotation of the partition 11. A guide groove 26 with a spiral structure is opened at the lower end of the lifting rod 22, and a ball 25 is embedded and installed on the upper inner wall of the fixed cylinder 21. During the lifting and lowering process of the lifting rod 22, the ball 25 slides along the guide groove 26 to drive the feeding piece 20 to rotate. At the same time, the feeding piece 20 is arranged in a hemispherical structure, and the feeding piece 20 is evenly provided with a spreading hole structure.

[0042] As the rotating shaft 10 rotates, it can drive the adjusting disk 13 connected to the shaft to rotate synchronously. At this time, the first magnetic block 14 on the outer side of the adjusting disk 13 will intermittently approach the second magnetic block 17, so that the material dispersing member 16 performs elastic lifting and lowering movement under the magnetic force of the first magnetic block 14 and the second magnetic block 17, thereby knocking the lower part of the silo 7, so that the silo 7 promotes the stable discharge of materials through vibration, avoids blockage and affects the quantitative delivery of materials, and at the same time, as the partition 11 rotates, it will contact and push the lifting rod 22 to move downward elastically, and the guide rod 24 will slide along the slide groove 23 on the lifting rod 22 to limit the lifting rod 22. At the same time, when the lower end of the lifting rod 22 is lifted and lowered in the fixed cylinder 21, the ball 25 will slide along the spiral guide groove 26, thereby driving the fixed cylinder 21 and the feeding member 20 to rotate, so that the feeding member 20 can centrifugally scatter the received materials, thereby improving the uniformity of the falling of the materials, so as to improve the subsequent stirring and pulping efficiency.

[0043] Contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A grouting system for uncovered heavy consolidation grouting construction, comprising a grouting machine (1) and an air compressor (2) for conveying grout, a grouting pipe (3) connected to a discharge port of the grouting machine (1), a grouting plug (4) fixedly connected to the end of the grouting pipe (3), and a liquid injection pipe installed at the upper end of the grouting machine (1), characterized in that: A flow meter (5) for monitoring the slurry flow rate is installed on the grouting pipe (3); a silo (7) is fixedly supported and installed on the outer side of the upper end of the pulping machine (1) via a support frame (6); a discharge portion (701) is integrally provided at the lower end of the silo (7); and a quantitative feeding mechanism is provided on the inner side of the discharge portion (701); a servo motor (8) is also fixedly installed on the support frame (6); and a driving component is connected between the servo motor (8) and the quantitative feeding mechanism; a material dispersing component for avoiding material blockage is symmetrically provided on the outer side of the silo (7); a mounting frame (19) is fixedly installed at the lower end of the discharge portion (701); and a feeding piece (20) for scattering materials is rotatably installed on the outer side of the mounting frame (19); and during the operation of the quantitative feeding mechanism, the feeding piece (20) is driven by the transmission component to rotate back and forth to achieve uniform feeding.

2. A grouting system for uncapped weight consolidation grouting construction according to claim 1, characterized in that: The quantitative feeding mechanism comprises a rotating shaft (10) which is rotatably installed on the material discharge portion (701), and a partition plate (11) is evenly fixedly installed on the outer side of the rotating shaft (10), and the middle position of the material discharge portion (701) is arranged in a circular structure, and at the same time, one end of the partition plate (11) away from the rotating shaft (10) is slidably attached to the inner wall of the middle position of the material discharge portion (701), and the rotating shaft (10) drives the partition plate (11) to rotate to realize the quantitative feeding of materials.

3. A grouting system for uncapped weight consolidation grouting construction according to claim 1, characterized in that: The driving assembly comprises an incomplete gear (9) fixedly mounted on the output end of the servo motor (8) and a transmission gear (12) fixedly mounted on the end of the rotating shaft (10), the incomplete gear (9) and the transmission gear (12) being meshed and connected, and the rotating shaft (10) is driven by the transmission gear (12) to intermittently rotate.

4. A grouting system for uncapped weight consolidation grouting construction according to claim 1, characterized in that: The material dispersing assembly comprises an adjusting disk (13) fixedly mounted on both ends of the rotating shaft (10), and the adjusting disk (13) is of a polygonal structure, and a first magnetic block (14) is evenly and fixedly embedded on the outer side of the adjusting disk (13), and a fixing frame (15) is symmetrically fixedly mounted on the outer side of the silo (7), and a material dispersing piece (16) is provided through the fixing frame (15), and a second magnetic block (17) is fixedly mounted on the lower end of the material dispersing piece (16), and the magnetic poles of the opposing surfaces of the first magnetic block (14) and the second magnetic block (17) are opposite.

5. A grouting system for uncapped weight consolidation grouting construction according to claim 4, characterized in that: The upper end of the material dispersing member (16) is attached to the side wall of the silo (7), and the second magnetic block (17) at the lower end of the material dispersing member (16) is located at the lower end of the fixed frame (15), and a first spring (18) is fixedly connected between the fixed frame (15) and the second magnetic block (17). At the same time, the material dispersing member (16) is elastically raised and lowered under the magnetic force of both the first magnetic block (14) and the second magnetic block (17), and the material dispersing member (16) knocks the lower part of the silo (7) during the elastic resetting process to promote material discharge through vibration.

6. The grouting system for uncapped weight consolidation grouting construction according to claim 1, characterized in that: The transmission assembly comprises a lifting rod (22) arranged in the silo (7), wherein the upper end of the lifting rod (22) is arranged in a conical structure, and a slide groove (23) is provided through the lifting rod (22), and a guide rod (24) is slidably provided through the slide groove (23), and the guide rod (24) is fixedly mounted on the inner wall of the unloading portion (701) to guide the lifting rod (22).

7. A grouting system for uncapped weight consolidation grouting construction according to claim 6, characterized in that: A fixing cylinder (21) is sleeved on the outer side of the lower end of the lifting rod (22), and the fixing cylinder (21) is fixedly mounted on the inner wall of the feeding member (20). A second spring (27) is provided between the lifting rod (22) and the inner wall of the lower end of the fixing cylinder (21), and the lifting rod (22) is pushed downward during the rotation of the partition plate (11).

8. A grouting system for uncapped weight consolidation grouting construction according to claim 7, characterized in that: A guide groove (26) with a spiral structure is provided at the lower end of the lifting rod (22), and a ball (25) is embedded and installed on the upper inner wall of the fixed cylinder (21). During the lifting and lowering process of the lifting rod (22), the ball (25) slides along the guide groove (26) to drive the feeding piece (20) to rotate. At the same time, the feeding piece (20) is arranged in a hemispherical structure, and a material spreading hole structure is evenly provided on the feeding piece (20).

9. A grouting method for uncapped weight consolidation grouting construction, characterized in that: The following steps are involved: S1, transporting concrete materials to a silo (7) for storage in advance, injecting water into the pulping machine (1) through a liquid injection pipe, and simultaneously starting a servo motor (8) to drive a rotating shaft (10) to drive a partition (11) to rotate, thereby achieving quantitative feeding of materials and ensuring that a water-cement ratio is maintained at 3:1, and simultaneously starting a stirring mechanism of the pulping machine (1) to achieve mixing and pulping of materials; S2, grouting each row of holes in two sequences, inserting the grouting plug (4) into the grouting hole with interference fit, and starting the air compressor (2) at the same time, so that the material in the grouting machine (1) enters the grouting plug (4) through the grouting pipe (3), thereby injecting grout into the grouting hole; S3. The circulating grouting method controls the grouting pressure by adjusting the return grouting flow rate. When the grouting volume is small, the "one-time pressure increase method" can be used to reach the specified grouting pressure as soon as possible. When the grouting volume is large, the "staged pressure increase method" can be used to slowly increase the pressure to the specified grouting pressure. During the circulating grouting, the distance between the grouting pipe outlet and the bottom of the hole is less than or equal to 50 cm. S4. Principle of slurry concentration change: Consolidation grouting uses 42.5 grade ordinary silica cement slurry, and the slurry changes step by step from thin to thick. The slurry water-cement ratio adopts five levels: 3:1, 2:1, 1:1, 0.7:1, and 0.5:

1. The water-cement ratio for initial grouting is generally 3:

1. The flow meter (5) is used to monitor the slurry injection volume in real time.

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