Ground deviation rectifying device

Abstract

The invention discloses a ground deviation rectifying device, and relates to the technical field of ground deviation rectifying, the ground deviation rectifying device comprises a main cylinder body, the main cylinder body is provided with a hollow piston rod through a hydraulic assembly, the top end of the hollow piston rod is provided with a grouting pipe through a limiting assembly, the bottom end of the main cylinder body is connected with an auxiliary cylinder through a screw thread, and the auxiliary cylinder extends into a ground main body through a hole; the hole is formed in the ground body, a positioning assembly matched with the auxiliary cylinder is further arranged in the hole, the grouting pipe sequentially penetrates through the hollow piston rod and the auxiliary cylinder and extends into the ground body, and a fixing assembly is arranged between the auxiliary cylinder and the grouting pipe. According to the deviation rectifying device, the main cylinder body can be conveniently detached for deviation rectifying of a foundation, meanwhile, the fixed grouting pipe can be conveniently subjected to grouting operation, after grouting is completed, the auxiliary cylinder and the like can be conveniently detached, the original shape can be restored and deviation rectifying operation can be completed when grouting plugging is conducted on a hole, meanwhile, the deviation rectifying device can be repeatedly used, and operation is relatively simple and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of ground deviation correction, in particular to a ground deviation correction device. Background Art

[0002] Ground settlement correction refers to the process of taking measures to adjust and repair uneven settlement or tilt of the ground pavement, equipment foundation, or building foundation. This phenomenon is usually caused by uneven deformation of the foundation settlement due to insufficient bearing capacity of the foundation, which may affect the safety and use function of the structure.

[0003] When dealing with ground subsidence problems, a variety of correction technologies can be used. For example, pile pressing and soil excavation correction method is a commonly used method, and jacking correction technology is also an effective solution. This method gradually corrects the inclination and settlement of the building or the ground by excavating near the foundation of the building and performing a controlled local compaction process.

[0004] However, the above-mentioned methods such as pile driving and soil excavation correction are relatively costly and difficult in actual construction, while jacking correction requires excavation near the settled ground and compaction operations, which also have relatively high construction costs and difficulties. It may also be necessary to leave holes on the foundation or pre-embed anchor rods. Therefore, a ground correction device is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a ground deviation correction device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ground correction device, comprising a main cylinder body, the main cylinder body is provided with a hollow piston rod through a hydraulic component, the top of the hollow piston rod is provided with a grouting pipe through a limiting component, the bottom end of the main cylinder body is connected with a sub-cylinder through a thread, the sub-cylinder extends into the interior of the ground body through a hole, the hole is opened on the ground body, a positioning component matching the sub-cylinder is also provided in the hole, the grouting pipe passes through the hollow piston rod and the sub-cylinder in sequence and extends to the interior of the ground body, and a fixing component is provided between the sub-cylinder and the grouting pipe.

[0007] Preferably, in order to facilitate the up and down movement of the hollow piston rod and thus the downward movement of the grouting pipe, the hydraulic assembly includes a piston arranged outside the hollow piston rod, the piston is interference fit with the inner wall of the main cylinder body, and the side wall of the main cylinder body is provided with an oil inlet and an oil return port in sequence.

[0008] Preferably, in order to limit and fix the hollow piston rod with the grouting pipe when it moves downward, it can move downward together with the grouting pipe, and the hollow piston rod can be reset alone when it moves upward, so as to facilitate the correction operation. The limit assembly includes a connecting sleeve connected to the top of the hollow piston rod by a thread, a wedge-shaped groove is opened inside the connecting sleeve, and a wedge-shaped piece matching the wedge-shaped groove is symmetrically provided on the top of the hollow piston rod.

[0009] Preferably, in order to position and fix the auxiliary cylinder and disperse the stress to ensure overall stability, the positioning assembly includes a positioning sleeve arranged in the hole, the outer sleeve of the auxiliary cylinder is provided with a limit piece, the limit piece matches the hole, and positioning blocks matching the limit piece are symmetrically provided on the side wall of the auxiliary cylinder.

[0010] Preferably, in order to position and fix the grouting pipe after deviation correction, the fixing assembly includes a tightening screw threadedly engaged on the two side walls of the auxiliary cylinder, the tightening screw is located inside the auxiliary cylinder and is provided with an arc-shaped clamping plate, which matches the grouting pipe.

[0011] Preferably, in order to ensure the fixing effect, friction pieces are equidistantly arranged on the inner arc surface of the arc-shaped clamping plate, and the friction pieces match the grouting pipe.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: through the positioning component provided and the auxiliary cylinder, it can be conveniently connected and fixed with the ground, and at the same time, in conjunction with the hydraulic component and the limit component, the grouting pipe can be conveniently moved downward, and then pressed into the settled ground, and the grouting pipe goes deeper into the soil, and the bearing capacity of the grouting pipe continues to increase. After a certain length, the bearing capacity of the grouting pipe is greater than the upward lifting force of the ground, and the ground begins to move upward, and then the correction operation is completed by grouting, and the fixing component can conveniently fix the grouting pipe and the auxiliary cylinder, and can facilitate the disassembly of the main cylinder body, and at the same time, it is also convenient to carry out grouting operation on the fixed grouting pipe. After the grouting is completed, it is also convenient to remove the auxiliary cylinder, etc., and the hole can be restored to its original state after grouting and sealing, and the correction operation is completed. At the same time, the correction device can be used repeatedly, and the operation is relatively simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of a ground deviation correction device proposed by the present invention;

[0014] Figure 2 A schematic diagram of the internal structure of a main cylinder in a ground deviation correction device proposed by the present invention;

[0015] Figure 3 This is a schematic structural diagram of a limit assembly in a ground deviation correction device proposed by the present invention;

[0016] Figure 4 This is a schematic diagram of the structure of a fixed component in a ground deviation correction device proposed by the present invention;

[0017] Figure 5 A partial structural schematic diagram of a fixed component in a ground deviation correction device proposed by the present invention;

[0018] Figure 6 The present invention is a schematic structural diagram of a positioning component in a ground deviation correction device proposed by the present invention.

[0020] In the figure: 1. Ground body; 2. Main cylinder body; 3. Hollow piston rod; 4. Grouting pipe; 5. Oil inlet; 6. Oil return port; 7. Auxiliary cylinder; 8. Piston; 9. Connecting sleeve; 10. Wedge groove; 11. Wedge piece; 12. Arc clamp; 13. Tightening screw; 14. Friction piece; 15. Positioning sleeve; 16. Limiting piece; 17. Hole; 18. Positioning block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0022] See also Figure 1-Figure 6 , an embodiment of the present invention is: a ground correction device, comprising a main cylinder body 2, a hollow piston rod 3 is connected to the inside of the main cylinder body 2 through the piston 8 of the hydraulic component, an oil inlet 5 and an oil return port 6 are arranged on the side wall of the main cylinder body 2 in sequence, and the telescopic movement of the hydraulic cylinder can be adjusted by controlling the oil inlet and oil return, which is a relatively mature technology and will not be described in detail here, and the bottom end of the main cylinder body 2 is connected to the auxiliary cylinder 7 through a thread, and a hole 17 is opened on the ground body 1 (the settled ground is partially shown in the figure) (a water drill can be used to open holes in the settlement area according to the hole 17 spacing determined by calculation to ensure that the depth and diameter of the hole 17 meet the construction requirements, which is a relatively mature technology and will not be described in detail here), the inside of the main cylinder body 2 is connected and positioned with the auxiliary cylinder 7 through a positioning component, and a grouting pipe 4 is arranged on the top of the hollow piston rod 3 through a limiting component, and the grouting pipe 4 passes through the hollow piston rod 3 and the auxiliary cylinder 7 in sequence and extends to the inside of the ground body 1, and a fixing component is arranged between the auxiliary cylinder 7 and the grouting pipe 4.

[0023] See also Figure 1-Figure 6In order to prevent the grouting pipe 4 from moving with the hollow piston rod 3 when it moves upward and to lock it when it moves downward, the grouting pipe 4 can move downward. The top of the hollow piston rod 3 is connected to the connecting sleeve 9 of the limiting assembly by a threaded connection, and a wedge-shaped groove 10 is provided at the top of the inner part, and two groups of wedge-shaped pieces 11 are symmetrically welded at the top of the hollow piston rod 3 (composed of two semicircular shapes, which can facilitate the connection and locking of the connecting sleeve 9 and the hollow piston rod 3, and the grouting pipe 4 can be fixed by the wedge-shaped pieces 11). The two constitute a lock assembly, which is a tooth surface arc wedge-shaped clamp. In order to ensure the stability of the auxiliary cylinder 7, a supporting structure that can be firmly fixed inside the concrete is provided, a positioning sleeve 15 is movably inserted inside the hole 17, and the auxiliary cylinder 7 is located inside the hole 17 and is provided with a limiting piece 16 (such as Figure 6 As shown in the figure, positioning blocks 18 are symmetrically welded on the two side walls of the auxiliary cylinder 7. The limiting member 16 cooperates with the positioning block 18 and the bottom end of the hole 17 to complete the positioning and fixing of the auxiliary cylinder 7. The limiting member 16 uses its own gravity to achieve automatic reset. The horizontal state after reset further enhances its limiting and fixing capabilities. The limiting member 16 can provide additional support and stability by cooperating with the positioning block 18 to ensure that the auxiliary cylinder 7 will not be accidentally displaced during operation. During the correction process, the limiter 16 can provide additional support force to ensure the stability of the auxiliary cylinder 7 and related components. This support can prevent structural deflection caused by uneven foundation or unbalanced force, thereby facilitating the correction operation of the overall structure. During the correction process, since the foundation in different parts may be subjected to uneven force, the limiter 16 can play a certain role in dispersing stress. By limiting the movement of the auxiliary cylinder 7, it can help transfer and disperse local prestress during correction, and avoid local damage to the foundation caused by excessive concentrated stress. After the correction is completed, there may be a certain risk of stress release in the foundation or structure. The fixing effect of the limiter 16 can prevent the auxiliary cylinder and the entire system from undergoing secondary displacement, thereby ensuring the ultimate correction effect. After the deviation correction is completed, the grouting pipe 4 can be injected with cement slurry under high pressure to reinforce the foundation. In order to position and fix the grouting pipe 4 after it is installed, the two side walls of the auxiliary cylinder 7 are engaged with tightening screws 13 of the fixing assembly, which penetrate the auxiliary cylinder 7 and extend to the inside to rotate (similar to the principle of bearings) and are connected with an arc-shaped clamping plate 12. The inner arc surface of the arc-shaped clamping plate 12 is equidistantly welded with friction parts 14 to ensure the fixing effect. The inner arc surface can also be an arc-shaped tooth surface to ensure the contact friction. For the grouting pipe 4, each section of the grouting pipe 4 is connected by a threaded connection. The pipe that is first pressed into the soil is drilled with a slurry outlet hole, and the last section or two sections pressed in cannot have a slurry outlet hole. Because if a slurry outlet hole is left in a section of the grouting pipe 4 on the upper part of the soil, the slurry will directly flow out from the upper slurry outlet hole during grouting and will not play a role in reinforcing the soil.

[0024] Working principle: When the present invention is used, ensure the safety of the construction area, prepare the materials and equipment required for the construction, clean the construction area, ensure that there are no obstacles, prepare grouting materials, devices and other equipment, find out the settlement area that needs to be corrected, use measuring tools to determine the specific location of the settlement area, mark the settlement ground body 1, and measure the current elevation as a construction benchmark, use a water drill to drill holes in the settlement area according to the calculated hole 17 spacing, ensure that the depth and diameter of the hole 17 meet the construction requirements, which is a relatively mature technology and will not be described in detail here, and then insert the positioning sleeve 15, set the limiter 16 on the outside of the auxiliary cylinder 7 and on the positioning block 18, and rotate The limiting member 16 is tilted, and then the auxiliary cylinder 7 is extended into the hole 17. After the insertion, the limiting member 16 passes through the hole 17 and enters the bottom, and then the limiting member 16 rotates and resets under the action of its own gravity, tends to be horizontal, and lifts the auxiliary cylinder 7 upward to cooperate with the positioning block 18 to position and fix and disperse the stress. The main cylinder body 2 is connected by thread, and then the grouting pipe 4 is inserted into the hollow piston rod 3. Then, the connecting sleeve 9 is tightened to cooperate with the wedge groove 10 and the wedge member 11 to clamp and fix the grouting pipe 4 and the hollow piston rod 3. After that, the main cylinder body 2 works, and the piston 8, the oil return port 6 and the oil inlet port 5 cooperate with each other, and the hollow piston rod 3 can be brought. After the main body 1 is lifted to the desired elevation, the two arc clamping plates 12 are brought closer to each other by tightening the jacking screw 13, and the friction member 14 can be used to clamp and fix the grouting pipe 4, and the main cylinder 2 can be moved from the main body 1 to the desired elevation. The auxiliary cylinder 7 can be removed and can be used for the operation of the next hole 17. At the same time, space is made for grouting operations. The compacted grouting material is injected into the hole 17 through the grouting pipe 4 to ensure uniform grouting without gaps. The grouting material is waited for initial setting, usually about 3 hours. During this period, the setting of the grouting material is monitored, and then the auxiliary cylinder 7 can be removed. When the auxiliary cylinder 7 is removed again, it can be rotated with the positioning block 18 at this time. It rotates to the through hole of the limit piece 16, and then loses the limit. It can be easily taken out, the construction equipment is removed, and the hole 17 is filled with quick-setting grouting material to ensure that the ground is flat, complete the deviation correction operation, and restore the original appearance of the construction area.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

Claims

1. A ground deviation correction device, comprising a main cylinder (2), characterized in that: The main cylinder body (2) is provided with a hollow piston rod (3) through a hydraulic component, and a grouting pipe (4) is provided at the top end of the hollow piston rod (3) through a limit component. The bottom end of the main cylinder body (2) is connected to a sub-cylinder (7) through a thread, and the sub-cylinder (7) extends into the interior of the ground body (1) through a hole (17). The hole (17) is provided on the ground body (1), and a positioning component matching the sub-cylinder (7) is also provided in the hole (17). The grouting pipe (4) passes through the hollow piston rod (3) and the sub-cylinder (7) in sequence and extends into the interior of the ground body (1). A fixing component is provided between the sub-cylinder (7) and the grouting pipe (4).

2. A ground deviation correction device according to claim 1, characterized in that: The hydraulic assembly comprises a piston (8) arranged outside a hollow piston rod (3), the piston (8) being interference fit with the inner wall of the main cylinder body (2), and an oil inlet (5) and an oil return port (6) being provided on the side wall of the main cylinder body (2).

3. A ground deviation correction device according to claim 2, characterized in that: The limit assembly comprises a connecting sleeve (9) connected to the top end of a hollow piston rod (3) via a thread, a wedge-shaped groove (10) is provided inside the connecting sleeve (9), and a wedge-shaped piece (11) matching the wedge-shaped groove (10) is symmetrically provided at the top end of the hollow piston rod (3).

4. A ground deviation correction device according to claim 3, characterized in that: The positioning assembly comprises a positioning sleeve (15) arranged in a hole (17); a limiting member (16) is provided on the outside of the auxiliary cylinder (7); the limiting member (16) matches the hole (17); and a positioning block (18) matching the limiting member (16) is symmetrically provided on a side wall of the auxiliary cylinder (7).

5. A ground deviation correction device according to claim 4, characterized in that: The fixing assembly comprises a tightening screw (13) threadably engaged with the two side walls of the auxiliary cylinder (7); the tightening screw (13) is located inside the auxiliary cylinder (7) and is provided with an arc-shaped clamping plate (12); the arc-shaped clamping plate (12) matches the grouting pipe (4).

6. A ground deviation correction device according to claim 5, characterized in that: Friction pieces (14) are equidistantly arranged on the inner arc surface of the arc-shaped clamping plate (12), and the friction pieces (14) match the grouting pipe (4).

Images