Multi-high pressure grouting and jetting device for building construction

Abstract

The application discloses a multiple high-pressure grouting and jetting device for building construction, which comprises a jetting column head, a variable-diameter jetting nozzle assembly, a variable-direction grouting assembly and a jet flow pump box fixedly installed on one side of the variable-direction grouting assembly, the variable-diameter jetting nozzle assembly is fixedly installed on the end of the jet flow pump box, the number of the variable-direction grouting assembly and the jet flow pump box is two groups and they are arranged on the two sides of the variable-direction grouting assembly in a point symmetry mode about the central axis origin of the jetting column head, and the variable-direction grouting assembly comprises a fixed guide base, a swing ring base and a driving core shaft. In the application, the variable-phase jet flow assembly is arranged, the swing ring base on the two sides of the fixed guide base is swung under the control of the driving core shaft to drive the variable-diameter jetting nozzle assembly and the jet flow pump box to perform a deflection movement, the high-pressure jet flow is used to break the soil layer structure and form a jet flow type diffusion space in the soil body, the space is in a central scattering mode, the slurry is solidified in the scattering space, the jointing effect of the surrounding body and the soil layer is improved, and then the surrounding body is prevented from sinking.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a multi-stage high-pressure grouting jetting device for building construction. Background Technology

[0002] Multi-tube high-pressure jet grouting technology involves drilling a hole in the ground, inserting a multi-tube system into the hole, and then injecting high-pressure water to disrupt the physical properties and particle aggregation of the soil, creating a slurry flow inside. This slurry is then immediately extracted from the multi-tube system using a vacuum pump. Through repeated high-pressure water injection and extraction, a large space is created within the soil. Ultrasonic sensors near the nozzles measure the shape and diameter of this space. Then, according to project requirements, suitable materials are selected to fill the empty space, forming a columnar structure filled with the filling material within the soil.

[0003] Existing multi-tube high-pressure grouting jetting devices mainly utilize multiple jetting holes on the column head surface to deliver circumferential jetting. The multiple jetting holes result in dispersed grouting pressure, a smaller grouting area, and a smaller volume and shorter lateral span of the resulting perimeter. Furthermore, the high-pressure directional output only jets radially along the column head, and the shape of the perimeter is directly related to the arrangement of the soil matrix. This high pressure can easily create cavities around the jetting holes, such as… Figure 10 As shown in (a) and (b), this type of perimeter structure has a large consolidation area but a small lateral extension range, making it prone to settlement. In addition, the perimeter structure requires a large amount of material, which increases the construction cost and has certain defects.

[0004] In view of this, this paper studies and improves upon the existing problems, and provides a multi-stage high-pressure grouting jetting device for building construction to solve the current problems. The aim is to solve the problems and improve the practical value through this technology. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] To this end, the technical scheme adopted by the present application is as follows: a multiple high-pressure grouting and jetting device for building construction, comprising: a grouting column head, a variable-diameter nozzle assembly, a variable-direction grouting assembly, and a jet flow pump box fixedly installed on one side of the variable-direction grouting assembly, the variable-diameter nozzle assembly is fixedly installed on the end of the jet flow pump box, the number of the variable-direction grouting assembly and the jet flow pump box is two groups and they are arranged on both sides of the variable-direction grouting assembly about the origin of the central axis of the grouting column head, the variable-direction grouting assembly comprises a fixed guide seat, a rotating ring seat and a driving mandrel, the inside of the fixed guide seat is rotatably installed with an axle seat, the inside of the rotating ring seat is fixedly connected with both sides of the axle seat and rotatably sleeved on the surface of the fixed guide seat, the surface of the fixed guide seat is provided with a rotating sleeve rod, the driving mandrel is rotatably sleeved on the inside of the rotating sleeve rod and the fixed guide seat and one end thereof is fixedly installed with a fixed traction rod, one end of the fixed traction rod is movably connected with a linkage rod, the other end of the linkage rod is movably connected with the surface of the rotating ring seat.

[0007] The jet flow pump box is fixedly installed on one side of the rotating ring seat and one end thereof is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a jet flow rotating paddle rotatably installed inside the jet flow pump box, the variable-diameter nozzle assembly comprises a guide ring seat, a movable sliding ring and a plurality of beam plates rotatably installed on one end of the guide ring seat, the surface of the guide ring seat is fixedly installed with a driving rod, the output end of the driving rod is fixedly connected with the movable sliding ring which is slidably sleeved on the guide ring seat, one side of the movable sliding ring is movably installed with a plurality of linkage frames, the surface of the beam plate is fixedly installed with a yawing seat, one end of the linkage frame is movably connected with the surface of the yawing seat.

[0008] In a preferred example, the surface of the grouting column head is provided with an oscillation groove for the deflection movement of the variable-diameter nozzle assembly and the jet flow pump box, the surface of the oscillation groove is provided with a sealing rubber film which is sleeved on the port of the variable-diameter nozzle assembly, and the sealing rubber film is a silica gel film structure.

[0009] In a preferred example, the top end of the driving mandrel penetrates through the top surface of the grouting column head and extends outward, and the driving mandrel is rotatably sleeved on the inside of the grouting column head and the rotating sleeve rod.

[0010] In a preferred example, the centers of the rotating ring seat and the axle seat are located on the same horizontal line, and the two ends of the linkage rod are respectively connected with the surface of the rotating ring seat and the end ball of the fixed traction rod.

[0011] In a preferred example, the jet flow rotating paddle is located on the central axis of the jet flow pump box and the driving motor, and the jet flow rotating paddle has a conical structure.

[0012] The jet flow pump box is further provided with a liquid inlet guide hole on the surface, and the inside of the jet flow column head is provided with a guide pipe connected with the end of the liquid inlet guide hole, and the other end of the guide pipe is led out from the top end of the jet flow column head for connecting the jet water flow and the slurry.

[0013] The number of the beam flow plates, the deflection seats and the linkage frames is several and is arranged one by one in correspondence, the beam flow plates are uniformly distributed in the circumferential direction, the inner side of the beam flow plates is provided with an annular sleeve, and the annular sleeve is a flexible hose structure and is connected with the end of the variable-diameter nozzle assembly.

[0014] The present application has the following beneficial effects:

[0015] 1. In the present application, the variable-phase jet flow assembly is arranged, the swing ring seat on the two sides of the fixed guide seat drives the variable-diameter nozzle assembly and the jet flow pump box to perform deflection movement under the control of the drive shaft, the high-pressure jet flow is used to break the soil layer structure, a jet flow type diffusion space is formed in the soil body, the space is in a central scattering shape, the slurry is solidified in the scattering space, the jointing effect of the surrounding body and the soil layer is improved, and the surrounding body is prevented from sinking.

[0016] 2. In the present application, the variable-diameter nozzle assembly structure is arranged, the drive rod and the movable slip ring are used to drive the beam flow plate to perform deflection movement to enlarge or reduce the jet diameter, the jet flow of the slurry is beam flow, the impact pressure is increased to obtain a larger erosion radius, and the transverse radius of the surrounding body is improved, and the sinking of the surrounding body is further avoided.

[0017] 3. In the present application, the multi-directional jet grouting structure is arranged, the multi-directional scattering is formed in the outer periphery of the jet flow column head, the surrounding body in the shape of a thorn ball is made, the surrounding body is fully embedded in the soil layer, the contact area is large, the contact effect of the surrounding body and the soil layer is improved, and the amount of slurry is reduced, and the construction cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of one embodiment of the present application;

[0019] Figure 2 It is an inside structure schematic view of the jet flow column head of one embodiment of the present application;

[0020] Figure 3 It is a variable-direction jet grouting assembly structure schematic view of one embodiment of the present application;

[0021] Figure 4 It is a variable-diameter nozzle assembly and jet flow pump box installation structure schematic view of one embodiment of the present application;

[0022] Figure 5 It is a swing ring seat and drive shaft linkage structure schematic view of one embodiment of the present application;

[0023] Figure 6 Structure diagram of variable direction grouting assembly for one embodiment of the present application;

[0024] Figure 7 Structure diagram of variable direction grouting assembly for one embodiment of the present application Figure 5 Structure diagram of A of variable direction grouting assembly for one embodiment of the present application;

[0025] Figure 8 Structure diagram of jet pump box cross section for one embodiment of the present application;

[0026] Figure 9 Structure diagram of jet flow turning propeller for one embodiment of the present application;

[0027] Figure 10 Working effect comparison diagram of the present application and traditional multiple high pressure grouting injection device; wherein, figure (a), figure (b) are working process and surrounding body forming effect display diagram of traditional multiple high pressure grouting injection device; wherein figure (c), figure (d) are working process and surrounding body forming effect display diagram of the present application multiple high pressure grouting injection device respectively.

[0028] Reference signs:

[0029] 100, grouting column head; 110, swing groove; 111, sealing glue film

[0030] 200, variable diameter nozzle assembly; 210, guide ring seat; 220, movable sliding ring; 230, beam plate; 240, driving rod; 221, linkage frame; 231, deflection seat;

[0031] 300, variable direction grouting assembly; 310, fixed guide seat; 320, rotating ring seat; 330, driving core shaft; 340, shaft seat; 311, rotating sleeve rod; 331, fixed traction rod; 332, linkage rod;

[0032] 400, jet pump box; 410, driving motor; 420, liquid inlet guide; 430, jet flow turning propeller. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present application more clear and obvious, the present application is further described in detail below in combination with specific embodiments and with reference to the drawings. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0034] Some embodiments of the present application provide a multiple high pressure grouting injection device for building construction, which are described below in combination with the drawings.

[0035] In combination with Figures 1-10As shown, the application provides a multiple high-pressure grouting injection device for building construction, which comprises a grouting column head 100, a variable-diameter nozzle assembly 200, a variable-direction grouting assembly 300, and a jet flow pump box 400 fixedly installed on one side of the variable-direction grouting assembly 300, the variable-diameter nozzle assembly 200 is fixedly installed on the end of the jet flow pump box 400, the variable-direction grouting assembly 300 and the jet flow pump box 400 are two groups and are symmetrically arranged on both sides of the variable-direction grouting assembly 300 about the origin of the central axis of the grouting column head 100, the variable-direction grouting assembly 300 comprises a fixed guide base 310, a rotating ring base 320, and a driving core shaft 330, the inside of the fixed guide base 310 is rotatably installed with a shaft seat 340, the inside of the rotating ring base 320 is fixedly connected with both sides of the shaft seat 340 and rotatably sleeved on the surface of the fixed guide base 310, the surface of the fixed guide base 310 is provided with a rotating sleeve rod 311, the driving core shaft 330 is rotatably sleeved on the inside of the rotating sleeve rod 311 and the fixed guide base 310 and one end thereof is fixedly installed with a fixed traction rod 331, one end of the fixed traction rod 331 is movably connected with a linkage rod 332, the other end of the linkage rod 332 is movably connected with the surface of the rotating ring base 320.

[0036] The jet flow pump box 400 is fixedly installed on one side of the rotating ring base 320 and one end thereof is fixedly connected with a driving motor 410, the output end of the driving motor 410 is fixedly connected with a jet flow rotating paddle 430 rotatably installed inside the jet flow pump box 400, the variable-diameter nozzle assembly 200 comprises a guide ring base 210, a movable sliding ring 220, and a plurality of beam plates 230 rotatably installed on one end of the guide ring base 210, the surface of the guide ring base 210 is fixedly installed with a driving rod 240, the output end of the driving rod 240 is fixedly connected with the movable sliding ring 220 slidably sleeved on the guide ring base 210, one side of the movable sliding ring 220 is movably installed with a plurality of linkage frames 221, the surface of the beam plate 230 is fixedly installed with a deflection base 231, one end of the linkage frame 221 is movably connected with the surface of the deflection base 231.

[0037] In this embodiment, the surface of the grouting column head 100 is provided with a swing groove 110 for the deflection movement of the variable-diameter nozzle assembly 200 and the jet flow pump box 400, the surface of the swing groove 110 is provided with a sealing rubber film 111 sleeved on the port of the variable-diameter nozzle assembly 200, and the sealing rubber film 111 is a silica gel film structure.

[0038] Specifically, the sealing rubber film 111 realizes the sealing of the swing groove 110 and can be elastically pulled along the movement of the variable-diameter nozzle assembly 200, and self-adapts to deformation to maintain the sealing effect.

[0039] In this embodiment, the top end of the driving core shaft 330 penetrates to the top surface of the grouting column head 100 and extends outward, and the driving core shaft 330 is rotatably sleeved on the inside of the grouting column head 100 and the rotating sleeve rod 311.

[0040] Specifically, the rotation of the driving mandrel 330 at the top end of the jetting column head 100 can drive the driving mandrel 330, the fixed traction rod 331, the traction shaft seat 340 and the rotating ring seat 320 to rotate on the surface of the fixed guide seat 310, so as to adjust the opposite direction of the variable-diameter nozzle assembly 200 and the jet pump box 400.

[0041] In this embodiment, the centers of the rotating ring seat 320 and the shaft seat 340 are located on the same horizontal line, and the two ends of the linkage rod 332 are connected with the surface of the rotating ring seat 320 and the end ball head of the fixed traction rod 331, respectively.

[0042] Specifically, taking the rotation of the shaft seat 340 inside the fixed guide seat 310 as the center of the deflection motion of the rotating ring seat 320, the rotating ring seat 320 is driven to rotate by the ball head connection of the linkage rod 332 following the lateral rotation of the driving mandrel 330.

[0043] In this embodiment, the jet flow paddle 430 is located on the center axis of the jet pump box 400 and the driving motor 410, and the jet flow paddle 430 has a conical structure.

[0044] Specifically, the rotation of the jet flow paddle 430 is used to guide the water flow or slurry, and the kinetic energy loss of the water flow and slurry in the jetting column head 100 and the jet pump box 400 is compensated by mechanical rotation, so as to improve the jet pressure.

[0045] In this embodiment, the surface of the jet pump box 400 is provided with a liquid inlet guide 420, the inside of the jetting column head 100 is provided with a guide pipe connected with the end of the liquid inlet guide 420, and the other end of the guide pipe is led out from the top end of the jetting column head 100 for connecting the injection of water flow and slurry.

[0046] In this embodiment, the number of the beam flow plates 230, the deflection seats 231 and the linkage frames 221 is several and is arranged one by one, the beam flow plates 230 are uniformly distributed in the circumferential direction, the inner side of the beam flow plate 230 is provided with an annular sleeve, and the annular sleeve has a flexible hose structure and is connected with the end of the variable-diameter nozzle assembly 200.

[0047] Specifically, the annular sleeve is used as the inner lining layer of the beam flow plate 230 to avoid the overflow of the slurry and water flow in the gap between the beam flow plates 230, and the flexible structure of the annular sleeve can deform following the deflection of the beam flow plate 230.

[0048] The working principle and use process of the present application are as follows:

[0049] In the construction of the pile hole, the jet grouting column head 100 is inserted and connected to the slurry pressurized delivery structure, the slurry delivery pressure is adjusted to 20-25 MPa, the slurry is delivered through the internal conduit of the jet grouting column head 100 and the liquid inlet guide 420, the slurry is further supplemented with kinetic energy by the rotation of the jet flow rotary impeller 430 driven by the driving motor 410 inside the jet flow pump box 400, and the jet flow is injected inside the jet flow pump box 400 and the variable-diameter nozzle assembly 200, the high-pressure water flow is first started to inject, the physical properties and particle aggregates of the soil are destroyed, the destruction surface extends radially outward along the jet grouting column head 100, and the mud flow is immediately pumped out by the vacuum pump after the internal mud flow is formed, after the high-pressure water flow injection and pumping out, the operation is repeated, and in the repeated operation, the jet grouting column head 100 can be rotated to perform the overall horizontal deflection movement of the variable-diameter nozzle assembly 200 and the jet flow pump box 400, the jet flow is formed on multiple sides of the outer periphery of the jet grouting column head 100 to form multiple jet flow spaces in the same horizontal plane; the driving core shaft 330 can be rotated to drive the core shaft 330, the fixed traction rod 331 and the linkage rod 332 to pull the shaft seat 340 and the rotating ring seat 320 to perform the deflection movement on the surface of the fixed guide seat 310, thereby driving the variable-diameter nozzle assembly 200 and the jet flow pump box 400 to adjust the angle, adjust the port of the variable-diameter nozzle assembly 200 to face each other, and perform the high-pressure water flow injection and pumping out again to form a multi-directional scattering space with the jet grouting column head 100 and the variable-diameter nozzle assembly 200 as the center; after the space is formed, the grouting operation is performed, the slurry is solidified in the space, and the ball-shaped surrounding body is formed in the soil layer, as shown in Figure 10 The ball-shaped surrounding body effectively increases the contact area with the soil layer and reduces the material usage.

[0050] During the water jet flow process, the driving rod 240 and the movable slip ring 220 can be used to drive the beam flow plate 230 to perform the deflection movement to expand or reduce the injection caliber, the beam flow of the slurry injection is formed, the impact pressure is increased to obtain a larger erosion radius, thereby improving the transverse radius of the surrounding body, further improving the extension span of the surrounding body, and improving the embedding effect of the surrounding body and the soil layer.

[0051] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A multiple high pressure grouting and jetting device for construction work, characterized in that, The jet column head (100), the variable-diameter nozzle assembly (200), the variable-direction grouting assembly (300), and the jet pump box (400) fixedly installed on one side of the variable-direction grouting assembly (300), the variable-diameter nozzle assembly (200) is fixedly installed on the end of the jet pump box (400), the number of the variable-direction grouting assembly (300) and the jet pump box (400) is two groups and is arranged on both sides of the variable-direction grouting assembly (300) about the origin of the central axis of the jet column head (100), the variable-direction grouting assembly (300) comprises a fixed guide base (310), a rotating ring base (320) and a driving core shaft (330), the inner side of the fixed guide base (310) is rotatably installed with a shaft seat (340), the inner side of the rotating ring base (320) is fixedly connected with both sides of the shaft seat (340) and is rotatably sleeved on the surface of the fixed guide base (310), the surface of the fixed guide base (310) is provided with a rotating sleeve rod (311), the driving core shaft (330) is rotatably sleeved on the inner side of the rotating sleeve rod (311) and the fixed guide base (310) and one end thereof is fixedly installed with a fixed traction rod (331), one end of the fixed traction rod (331) is movably connected with a linkage rod (332), the other end of the linkage rod (332) is movably connected with the surface of the rotating ring base (320). The jet pump box (400) is fixedly installed on one side of the rotating ring base (320) and one end thereof is fixedly connected with a driving motor (410), the output end of the driving motor (410) is fixedly connected with a jet rotating paddle (430) rotatably installed in the jet pump box (400), the variable-diameter nozzle assembly (200) comprises a guide ring base (210), a movable sliding ring (220) and a plurality of beam plates (230) rotatably installed on one end of the guide ring base (210), the surface of the guide ring base (210) is fixedly installed with a driving rod (240), the output end of the driving rod (240) is fixedly connected with the movable sliding ring (220) slidably sleeved on the guide ring base (210), one side of the movable sliding ring (220) is movably installed with a plurality of linkage frames (221), the surface of the beam plate (230) is fixedly installed with a deflection base (231), one end of the linkage frame (221) is movably connected with the surface of the deflection base (231); the surface of the jet column head (100) is provided with a swing groove (110) for the deflection movement of the variable-diameter nozzle assembly (200) and the jet pump box (400), the surface of the swing groove (110) is provided with a sealing rubber film (111) wrapped around the port of the variable-diameter nozzle assembly (200). The sealing rubber film (111) is a silica gel film structure.

2. The multiple high-pressure jet grouting device for building construction according to claim 1, characterized in that, The top end of the driving core shaft (330) penetrates to the top surface of the jet column head (100) and extends outward, and the driving core shaft (330) is rotatably sleeved on the inner side of the jet column head (100) and the rotating sleeve rod (311).

3. The multiple high-pressure jet grouting device for building construction according to claim 1, characterized in that, The centers of the rotating ring base (320) and the shaft seat (340) are located on the same horizontal line, and the two ends of the linkage rod (332) are respectively connected with the surface of the rotating ring base (320) and the end ball of the fixed traction rod (331).

4. The multiple high-pressure jet grouting device for building construction according to claim 1, characterized in that, ​ 5. The multiple high pressure jet grouting device for building construction according to claim 1, wherein The jet flow turning paddle (430) is located on the center axis of the jet flow pump box (400) and the driving motor (410), and the jet flow turning paddle (430) is in a conical structure.

6. The multiple high pressure jet grouting device for building construction according to claim 1, wherein The surface of the jet flow pump box (400) is provided with a liquid inlet guide (420), the inside of the jet flow column head (100) is provided with a guide pipe in communication with the end of the liquid inlet guide (420), and the other end of the guide pipe is led out from the top end of the jet flow column head (100) for connecting the injection water flow and the slurry.

7. The multiple high pressure jet grouting device for building construction according to claim 1, wherein The number of the beam flow plates (230), the deflection seats (231) and the linkage frames (221) is several and is arranged one by one, the beam flow plates (230) are uniformly distributed in the circumferential direction, the inner side of the beam flow plate (230) is provided with an annular sleeve, and the annular sleeve is in an elastic hose structure and is connected with the end of the variable-diameter jet nozzle assembly (200) at one end.

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