A soft soil foundation grouting reinforcement equipment

Abstract

The utility model discloses a kind of soft soil foundation grouting reinforcement equipment, it is related to borehole grouting equipment technical field.Soft soil foundation grouting reinforcement equipment includes grouting mechanism: grouting mechanism includes agitator barrel, agitator barrel is provided with pump, pump is connected with grouting pipe, grouting pipe is connected with transmission pipe, drilling mechanism includes base and top plate, connecting rod is provided between base and top plate, top plate is provided with driving mechanism, driving mechanism is connected with worm, transmission pipe is sleeved with worm wheel, base is provided with lifting mechanism, lifting mechanism is connected with drill pipe, drill pipe is provided with the through-hole of concrete discharge.The utility model's grouting reinforcement method uses soft soil foundation grouting reinforcement equipment to grout and reinforce soft soil foundation.The utility model is combined by drilling mechanism and grouting mechanism, realizes the integrated continuous operation of drilling and grouting, and effective stirring measure is adopted in concrete conveying process, prevent concrete solidification, to significantly improve construction efficiency and grouting quality, reduce construction cost.

Description

Technical Field

[0001] This utility model relates to the technical field of drilling and grouting equipment, specifically to a grouting reinforcement device for soft soil foundations. Background Technology

[0002] Grouting is a method of injecting certain solidifiable grouts into cracks or pores in rock and soil foundations to improve their physical and mechanical properties. The purpose of grouting is that after the grout hardens, it acts as a cementing and sealing agent, stabilizing the strata and isolating water sources to ensure foundation reinforcement. Foundation grouting mechanisms include: filling grouting, permeation grouting, compaction grouting, and fracturing grouting. Grouting materials include granular grouts and chemical grouts. Granular grouts are mainly cement grouts, while chemical grouts include silicate (water glass) grouts and polymer grouts.

[0003] Existing technologies typically employ drilling pipes to deliver concrete grout to the foundation; however, these technologies have the following drawbacks: (1) The drilling and grouting processes are independent of each other, the operation process is complicated, and the construction efficiency is low; (2) During the concrete transportation process, due to the lack of effective mixing measures, the concrete is prone to solidification, which leads to blockage of the transmission pipeline, affecting the grouting effect and construction progress.

[0004] Therefore, existing technologies need to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a grouting reinforcement device and method for soft soil foundations, aiming to solve the problems of cumbersome drilling and grouting processes, low construction efficiency, and easy solidification and blockage of pipelines by concrete during transportation, which affect the grouting effect and construction progress in existing technologies. By cleverly combining the drilling mechanism and the grouting mechanism, integrated continuous operation of drilling and grouting is achieved. Effective mixing measures are taken during concrete transportation to prevent concrete solidification, thereby significantly improving construction efficiency and grouting quality, and reducing construction costs.

[0006] This utility model is achieved through the following technical solution: This utility model provides a grouting reinforcement device for soft soil foundations, which includes: Grouting mechanism: The grouting mechanism includes a mixing tank, a pump is installed in the mixing tank, the pump is connected to a grouting pipe, and the grouting pipe is connected to a transmission pipe. Drilling mechanism: The drilling mechanism includes a base and a top plate, a connecting rod is provided between the base and the top plate, a driving mechanism is provided on the top plate, the driving mechanism is driven by a worm gear, and a worm wheel meshing with the worm gear is sleeved on the transmission tube. The base is equipped with a lifting mechanism, which is connected to a drill pipe. The drill pipe is connected to and communicates with the connecting rod. The drill pipe has a through hole for discharging concrete. The drive mechanism, in conjunction with the lifting mechanism, drives the drill pipe to drill holes, and the pump delivers the concrete from the mixing tank into the drill pipe and injects it into the foundation.

[0007] Furthermore, in this utility model, the outer wall of the drill pipe is provided with a limiting block, and the inner wall of the transmission pipe is provided with a guide groove for the limiting block to be embedded. After the drill pipe is inserted into the transmission pipe, the limiting block slides along the guide groove.

[0008] Furthermore, in this utility model, the lifting mechanism described above is connected to an adjusting seat, and the adjusting seat is connected to the drill pipe.

[0009] Furthermore, in this invention, the plurality of limiting blocks are evenly distributed around the drill pipe, and the plurality of guide grooves are evenly distributed around the transmission pipe.

[0010] Furthermore, in this utility model, a support is provided inside the aforementioned mixing tank, a mixing motor is provided on the support, a mixing rod is connected to the mixing motor, a mixing blade is provided on the mixing rod, and the mixing motor drives the mixing blade to mix the concrete to prevent it from solidifying.

[0011] Furthermore, in this invention, the stirring rod is connected to a reinforcing rod, and the end of the stirring blade is connected to the reinforcing rod.

[0012] Furthermore, in this utility model, the top end of the aforementioned transmission pipe is provided with a rotary joint that connects to the grouting pipe.

[0013] Furthermore, in this utility model, the top plate is provided with a bearing, and the transmission pipe is connected to the bearing.

[0014] Furthermore, in this invention, the lifting mechanism described above is configured as a hydraulic cylinder.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects: Improved construction efficiency: This invention integrates the drilling and grouting mechanisms into a single device, enabling continuous, integrated drilling and grouting operations. Compared to existing technologies where drilling and grouting are performed independently, this reduces time spent on equipment transfer and process coordination, significantly improving construction efficiency and effectively shortening the project construction cycle.

[0016] Ensuring grouting effectiveness: By installing a mixing motor, mixing rod, and mixing blades inside the mixing tank, the concrete is continuously mixed, preventing it from solidifying within the tank. This ensures smooth concrete delivery, avoids pipe blockage, and thus guarantees effective grouting and improves the quality of foundation reinforcement. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of a soft soil foundation grouting reinforcement device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the drilling mechanism according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the grouting mechanism according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the limiting block according to an embodiment of the present utility model.

[0018] The attached diagram shows the following components and their corresponding names: 1-mixing tank, 2-pump, 3-grouting pipe, 4-transmission pipe, 5-base, 6-top plate, 7-connecting rod, 8-worm gear, 9-worm wheel, 10-lifting mechanism, 11-drill pipe, 12-limiting block, 13-adjusting seat, 14-support, 15-mixing motor, 16-mixing rod, 17-mixing blade, 18-reinforcing rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only for explaining the present utility model and are not intended to limit the present utility model. The following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the present utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0020] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Example 1 Combination Figures 1 to 4 As shown, this is a soft soil foundation grouting reinforcement device provided in Embodiment 1 of this utility model, and its specific structure is described below.

[0022] In this embodiment, combined with Figure 1 As shown, the soft soil foundation grouting reinforcement equipment in this embodiment 1 mainly includes two parts: a grouting mechanism and a drilling mechanism. The grouting mechanism uses a mixing tank 1 with a capacity of 3-5 cubic meters. The mixing tank 1 is made of metal, possessing good corrosion resistance and wear resistance. A grouting pipe 3 is connected to the bottom outer side of the mixing tank 1, and the grouting pipe 3 is connected to a pump 2. The pump 2 is connected to a transmission pipe 4 through the grouting pipe 3 with a diameter of 100mm. The grouting pipe 3 is a high-pressure rubber hose, possessing good flexibility and pressure resistance, resulting in good conveying performance.

[0023] It should be noted that a rotary joint 18 is installed at the top of the transmission pipe 4. The grouting pipe 3 is connected to the transmission pipe 4 through the rotary joint. The rotary joint can withstand high pressure and high speed, ensuring the sealing and stability during the concrete conveying process. The function of the rotary joint 18 is to allow the grouting pipe 3 to remain relatively fixed while the transmission pipe 4 rotates, preventing it from rotating with the transmission pipe 4. This ensures the stability and sealing of the pipeline connection during concrete conveying, avoiding leakage or blockage caused by pipe twisting.

[0024] Furthermore, in combination Figure 1 and Figure 2 As shown, the base 5 is made of a 20mm thick U-shaped steel plate with dimensions of 2m × 2m to ensure the stability of the soft soil foundation grouting reinforcement equipment during operation. The top plate 6 and the base 5 are connected by four 50mm diameter connecting rods 7. The connecting rods 7 are made of steel pipes, and both ends of the steel pipes are welded to the bottom surface of the top plate 6 and the top surface of the base 5, respectively.

[0025] Combination Figure 1As shown, a servo motor is installed on the top plate 6 as the drive mechanism. The rated power of this motor is required to be greater than 10kW and the rated speed is greater than 800r / min. The two ends of the worm gear 8 are supported by bearing seats to facilitate the rotation of the worm gear 8. The drive motor is connected to the worm gear 8 through a coupling.

[0026] Combination Figure 1 and Figure 2 As shown, the transmission tube 4 has an outer diameter of 150mm, an inner diameter of 120mm, and a length of 3m. A worm gear 9 is fitted around the transmission tube 4. The module of the worm gear 9 is the same as that of the worm 8. Through the meshing transmission between the worm 8 and the worm gear 9, the transmission tube 4 can achieve stable rotation.

[0027] It should be noted that a through-hole is made in the center of the top plate 6, and a bearing (such as a deep groove ball bearing) is installed in the hole. The transmission tube 4 passes through and connects to the bearing. The bearing provides stable support for the rotation of the transmission tube 4, reducing frictional resistance. The bearing configuration provides stable support for the rotation of the transmission tube 4, reduces frictional resistance during rotation, allows the transmission tube 4 to rotate more smoothly, and also improves the stability and reliability of the equipment operation.

[0028] In this embodiment, combined with Figure 1 As shown, the lifting mechanism 10 uses two hydraulic cylinders, each with a maximum stroke of 2m and a maximum thrust of 500kN. The bottoms of the two cylinders are connected to the base 5, and the piston rods of the cylinders are fixedly connected to the adjusting seat 13. The adjusting seat 13 has a hole for the connecting rod 7 to pass through, allowing it to move up and down along the connecting rod 7 under the drive of the hydraulic cylinders. The drill pipe 11 passes through the adjusting seat 13 and is then connected to it. The adjusting seat 13 is made of cast iron and has sufficient strength and rigidity. The adjusting seat 13 drives the drill pipe 11 to move up and down axially.

[0029] The hydraulic cylinder has advantages such as compact structure, large output force and smooth movement. It can provide sufficient power for the lifting and lowering of the drill pipe 11. Furthermore, by precisely controlling the oil pressure in the hydraulic cylinder, it can achieve precise control of the lifting speed and position of the drill pipe 11, thus meeting the drilling depth and speed requirements under different construction conditions.

[0030] Combination Figure 2 and Figure 4As shown, the drill pipe 11 has an outer diameter of 100mm, an inner diameter of 80mm, and a length of 4m. The drill pipe 11 is made of high-strength seamless steel pipe. Concrete injection through-holes with a diameter of 10mm are evenly distributed on the pipe wall of the drill pipe 11, with a spacing of 100mm between adjacent through-holes. Six elongated limiting blocks 12 are evenly welded to the outer wall of the drill pipe 11. The limiting blocks 12 have a rectangular structure with dimensions of 50mm × 20mm × 8mm. Six guide grooves are correspondingly provided on the inner wall of the transmission pipe 4. The dimensions of the guide grooves match those of the limiting blocks 12, ensuring smooth sliding of the limiting blocks 12 within the guide grooves. This even distribution of the six elongated limiting blocks 12 and the six guide grooves allows for a more balanced limiting effect on the drill pipe 11 in all directions, avoiding wear or jamming caused by uneven local force.

[0031] It should be noted that the drill pipe 11 is a hollow metal pipe, with its top end inserted into the transmission pipe 4. Multiple through holes for discharging concrete are opened on the side wall, and it is connected to the internal channel of the connecting rod 7 to realize the transportation of concrete slurry.

[0032] In this embodiment, combined with Figure 1 and Figure 3 As shown, the mixing structure inside the mixing tank 1 is as follows: Inside the mixing tank 1, a Y-shaped support 14 is fixed by welding. The support 14 is made of square steel. A mixing motor 15 is installed on the support 14. The output shaft of the mixing motor 15 is connected to the mixing rod 16 below via a coupling. Three sets of mixing blades 17 are evenly welded onto the mixing rod 16. Each set of mixing blades 17 consists of four mixing blades 17 with a length of 500mm. The mixing blades 17 are made of metal tubes and can thoroughly mix the concrete.

[0033] After the mixing motor 15 starts, it drives the mixing rod 16 and the mixing blade 17 to rotate, continuously mixing the concrete in the mixing tank 1. This effectively prevents the concrete from solidifying when it is left to stand in the mixing tank 1, ensuring that the concrete delivered to the drill pipe 11 always maintains good fluidity and injectability.

[0034] Furthermore, in combination Figure 3 As shown, to enhance the strength of the mixing blade 17, three reinforcing rods 18 are welded at intervals on the mixing rod 16, and the reinforcing rods 18 are welded to the ends of the mixing blade 17. The reinforcing rods 18 can share part of the force borne by the mixing blade 17 when mixing concrete, reduce the risk of deformation or damage to the mixing blade 17 due to excessive force, extend the service life of the mixing blade 17, and ensure the durability of the mixing effect.

[0035] Example 2 This embodiment provides a grouting reinforcement method, which uses the soft soil foundation grouting reinforcement equipment in Embodiment 1 to grout and reinforce the soft soil foundation.

[0036] The soft soil foundation grouting reinforcement equipment achieves continuous "drilling-grouting" operation through mechanical linkage. The specific process is as follows: 1. Drilling stage The drive mechanism starts, driving the worm wheel 9 to rotate via the worm 8. The worm wheel 9 drives the transmission tube 4 to rotate synchronously. Since the guide groove on the inner wall of the transmission tube 4 is engaged with the limiting block 12 of the drill pipe 11, the drill pipe 11 rotates together with the transmission tube 4, and the drill bit outside the drill pipe 11 begins to cut the soft soil foundation.

[0037] Simultaneously, the hydraulic cylinder of the lifting mechanism 10 shortens, driving the drill pipe 11 to move axially downwards via the adjusting seat 13, and combining with the rotational motion to achieve the drilling action. During the drilling process, the connecting rod 7 and the adjusting seat 13 cooperate to provide support for the drill pipe 11, and also ensure the verticality of the drill pipe 11 during drilling.

[0038] 2. Grouting stage Before and after the drilling reaches the preset depth, the mixing motor 15 in the mixing tank 1 continues to work, and the mixing blades 17 mix the concrete slurry to prevent solidification.

[0039] After the borehole reaches the preset depth, the pump 2 is started, and the mixed slurry is sent into the transmission pipe 4 through the grouting pipe 3 and the rotary joint, and then transported to the vicinity of the drill bit through the internal channel of the drill pipe 11.

[0040] The concrete grout is finally injected into the foundation borehole through the through hole on the side wall of the drill pipe 11, and the high pressure is used to penetrate the grout into the cracks or pores of the soft soil foundation. At this time, the lifting mechanism 10 can slowly raise or lower the drill pipe 11 according to the grouting needs to ensure that the grout evenly fills the entire borehole area.

[0041] In this embodiment, the transmission tube 4 and the drill tube 11 are linked by "rotation + axial movement": the rotational power is transmitted through the worm gear 9 and the worm 8, and the axial feed is achieved through the hydraulic cylinder. The two work together to complete the drilling. Synchronization of grouting and drilling: Grouting can be performed simultaneously during drilling or immediately after drilling is completed to avoid interruption of the process; Anti-clogging design: The mixing tank 1 continuously mixes and delivers under high pressure. Combined with the reasonable distribution of through holes in the drill pipe 11, the risk of slurry solidification and clogging in the pipeline is reduced.

[0042] Through the above structure and principle, the grouting reinforcement method realizes the integrated operation of "drilling-grouting", which greatly improves construction efficiency and ensures the stability of grouting effect.

[0043] The working principle of this embodiment is as follows: In summary, the embodiments of this utility model provide a soft soil foundation grouting reinforcement device, which includes a grouting mechanism: the grouting mechanism includes a mixing tank 1, the mixing tank 1 is equipped with a pump 2, the pump 2 is connected to a grouting pipe 3, the grouting pipe 3 is connected to a transmission pipe 4, and a drilling mechanism: the drilling mechanism includes a base 5 and a top plate 6, a connecting rod 7 is provided between the base 5 and the top plate 6, the top plate 6 is equipped with a driving mechanism, the driving mechanism is driven by a worm gear 8, the transmission pipe 4 is sleeved with a worm wheel 9 that meshes with the worm gear 8, the base 5 is equipped with a lifting mechanism 10, the lifting mechanism 10 is connected to a drill pipe 11, the drill pipe 11 is connected to the connecting rod 7 and the drill pipe 11 communicates with the connecting rod 7, the drill pipe 11 is provided with a through hole for discharging concrete, the driving mechanism cooperates with the lifting mechanism 10 to drive the drill pipe 11 to drill holes, and the pump 2 delivers the concrete in the mixing tank 1 into the drill pipe 11 and injects it into the foundation. The outer wall of the drill pipe 11 is provided with a limiting block 12, and the inner wall of the transmission pipe 4 is provided with a guide groove for the limiting block 12 to be embedded. After the drill pipe 11 is inserted into the transmission pipe 4, the limiting block 12 slides along the guide groove. The lifting mechanism 10 is connected to an adjusting seat 13, which is connected to the drill pipe 11. Multiple limiting blocks 12 are evenly distributed around the drill pipe 11, and multiple guide grooves are evenly distributed around the transmission pipe 4. A support 14 is provided inside the mixing tank 1, and a mixing motor 15 is provided on the support 14. The mixing motor 15 is connected to a mixing rod 16, and the mixing rod 16 is provided with a mixing blade 17. The mixing motor 15 drives the mixing blade 17 to mix the concrete and prevent it from solidifying. A reinforcing rod 18 is connected to the mixing rod 16, and the end of the mixing blade 17 is connected to the reinforcing rod 18. A rotary joint 18 connected to the grouting pipe 3 is provided at the top end of the transmission pipe 4. A bearing is provided on the top plate 6, and the transmission pipe 4 is connected to the bearing. The lifting mechanism 10 is configured as a hydraulic cylinder.

[0044] This utility model also provides a grouting reinforcement method, which uses soft soil foundation grouting reinforcement equipment to grout and reinforce the soft soil foundation.

[0045] Therefore, the soft soil foundation grouting reinforcement equipment and method of this utility model, by cleverly combining the drilling mechanism and the grouting mechanism, realizes the integrated continuous operation of drilling and grouting, and takes effective mixing measures during the concrete transportation process to prevent the concrete from solidifying, thereby significantly improving construction efficiency and grouting quality and reducing construction costs.

[0046] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A grouting reinforcement device for soft soil foundations, characterized in that, include Grouting mechanism: The grouting mechanism includes a mixing tank (1), the mixing tank (1) is equipped with a pump (2), the pump (2) is connected to a grouting pipe (3), and the grouting pipe (3) is connected to a transmission pipe (4). Drilling mechanism: The drilling mechanism includes a base (5) and a top plate (6). A connecting rod (7) is provided between the base (5) and the top plate (6). A driving mechanism is provided on the top plate (6). The driving mechanism is connected to a worm gear (8). A worm wheel (9) that meshes with the worm gear (8) is sleeved on the transmission tube (4). The base (5) is provided with a lifting mechanism (10), the lifting mechanism (10) is connected to a drill pipe (11), the drill pipe (11) is connected to the connecting rod (7) and the drill pipe (11) communicates with the connecting rod (7), and the drill pipe (11) is provided with a through hole for discharging concrete. The drive mechanism, in conjunction with the lifting mechanism (10), drives the drill pipe (11) to drill holes, and the pump (2) delivers the concrete in the mixing tank (1) into the drill pipe (11) and injects it into the foundation.

2. The soft soil foundation grouting reinforcement equipment according to claim 1, characterized in that, The outer wall of the drill pipe (11) is provided with a limiting block (12), and the inner wall of the transmission pipe (4) is provided with a guide groove for the limiting block (12) to be embedded. After the drill pipe (11) is inserted into the transmission pipe (4), the limiting block (12) slides along the guide groove.

3. The soft soil foundation grouting reinforcement equipment according to claim 2, characterized in that, The lifting mechanism (10) is connected to an adjusting seat (13), which is connected to the drill pipe (11).

4. The soft soil foundation grouting reinforcement equipment according to claim 2, characterized in that, Multiple limiting blocks (12) are evenly distributed around the drill pipe (11), and multiple guide grooves are evenly distributed around the transmission pipe (4).

5. The soft soil foundation grouting reinforcement equipment according to claim 1, characterized in that, The mixing tank (1) is equipped with a support (14), the support (14) is equipped with a mixing motor (15), the mixing motor (15) is connected to a mixing rod (16), the mixing rod (16) is equipped with a mixing blade (17), and the mixing motor (15) drives the mixing blade (17) to mix the concrete to prevent it from solidifying.

6. The soft soil foundation grouting reinforcement equipment according to claim 5, characterized in that, The stirring rod (16) is connected to a reinforcing rod (18), and the end of the stirring blade (17) is connected to the reinforcing rod (18).

7. The soft soil foundation grouting reinforcement equipment according to claim 1, characterized in that, The top end of the transmission pipe (4) is provided with a rotary joint that is connected to the grouting pipe (3).

8. The soft soil foundation grouting reinforcement equipment according to claim 1, characterized in that, The top plate (6) is provided with a bearing, and the transmission pipe (4) is connected to the bearing.

9. The soft soil foundation grouting reinforcement equipment according to claim 1, characterized in that, The lifting mechanism (10) is configured as a hydraulic cylinder.

Images