Building foundation reinforcing device
By combining grouting anchor rods and depth adjustment pipes in the building foundation reinforcement device, the problem of poor grouting effect caused by different slurry pressure when penetrated into the soil layer is solved, and the controllability and effectiveness of grouting are achieved, ensuring the foundation stability and bearing capacity.
Patent Information
- Application Number
- CN202323598632.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-28
AI Technical Summary
In foundations with poor conditions and environment, when the existing grouting reinforcement technology has a large depth, the different slurry pressure leads to poor grouting effect. Especially when penetrated deep into the soil layer, the worse the effect, making it difficult to ensure the stability and bearing capacity of the foundation.
A building foundation reinforcement device was designed, using grouting anchor rods and grouting depth adjustment tubes to realize grouting liquid by setting depth scales, hollow tip cones, solid reinforced cone heads, outer convex rings and pressure gauge connection ports. The controlled pumping and effective range are expanded to ensure that grouting at depths in all places achieves the design effect.
The controllability and effectiveness of grouting are achieved, the range of grouting reinforcement is expanded, the strength of the connection point is enhanced, and the adjustment and maintenance are facilitated, ensuring the stability and bearing capacity of foundation reinforcement.
Smart Images
Figure CN222206288U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building engineering, in particular to a building foundation reinforcement device. Background Art
[0002] In foundations with poor environmental conditions, there are hazards such as collapse and deformation, which have a great impact on the safety of the building. At this time, the building foundation needs to be reinforced to improve its stability and bearing capacity. The need for foundation reinforcement can be met by grouting deep into the foundation. The current construction is: press the grouting pipe into the soil layer, and connect the pipeline for pumping grouting. Due to the large depth, the slurry pressure formed in the soil layers of different depths is different; the deeper it goes into the soil layer, the worse the grouting effect. Therefore, the applicant has made improvements based on years of construction experience. Utility Model Content
[0003] The utility model aims to solve some problems existing in the prior art when grouting reinforcement is performed on the foundation, and proposes a building foundation reinforcement device.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A building foundation reinforcement device comprises a grouting anchor rod, wherein a grouting depth regulating tube for sealing a grouting hole is inserted inside the grouting anchor rod;
[0006] A connecting pipe opening is arranged on the outer side of the tail end of the grouting depth adjustment pipe;
[0007] The outside of the grouting depth adjustment tube is provided with a depth scale.
[0008] In some embodiments, the head end of the grouting anchor is provided with a hollow pointed cone;
[0009] The hollow pointed cone is penetrated by a plurality of strip-shaped holes.
[0010] In some embodiments, a solid reinforced cone head is provided at the end of the pointed cone structure.
[0011] In some embodiments, a spiral cutter is disposed on the outer surface of the pointed cone structure.
[0012] In some embodiments, an outer convex ring is provided at the connection position between the pointed cone structure and the grouting anchor rod.
[0013] In some embodiments, the outer convex ring is welded using metal round bars.
[0014] In some embodiments, a detachable inspection cover is provided at the tail end of the grouting depth adjustment tube.
[0015] In some embodiments, the tail end of the grouting anchor rod is provided with a first outer ring flange, and the grouting depth adjustment tube is provided with a second outer ring flange near the tail end;
[0016] An adjusting pull piece is arranged between the first outer ring flange and the second outer ring flange.
[0017] In some embodiments, the adjusting puller is a screw rod, and adjusting nuts are respectively provided at both ends of the screw rod.
[0018] In some embodiments, a pressure gauge connection port is provided on the outer side of the tail end of the grouting depth adjustment tube.
[0019] Compared with the prior art, the utility model provides a building foundation reinforcement device, which has the following beneficial effects.
[0020] 1. The utility model has controllable grouting, which ensures that grouting at all depths can achieve the designed effect and fully ensure the reinforcement effect; a depth scale is provided, so that the current depth status can be intuitively seen, which is convenient for adjustment and control.
[0021] 2. The utility model has a strip hole on the hollow pointed cone, and slurry is pumped out from the tip to expand the effective range of grouting reinforcement; a solid reinforced cone head is provided to increase the strength without affecting the grouting, and the grouting operation is smoother and more powerful; an outer convex ring is provided to strengthen the strength of the connection point.
[0022] 3. The utility model is provided with an inspection cover to facilitate cleaning and maintenance of the grouting depth adjustment pipe; a pressure gauge connection port is provided to measure the grouting pressure in real time.
[0023] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural schematic diagram of the utility model.
[0025] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.
[0026] Figure 3 It is a schematic cross-sectional structural diagram of the lower part of the utility model.
[0027] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point B in the middle.
[0028] Figure 5Schematic diagram of the upward adjustment state of the grouting depth adjustment tube.
[0029] Figure 6 It is a partial cross-sectional schematic diagram of the grouting depth adjustment tube in the upward adjustment state.
[0030] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at point C in the middle.
[0031] Figure 8 Schematic diagram of the structure of the grouting anchor.
[0032] Fig. 9 Schematic diagram of the structure of the upper and lower ends of the grouting anchor.
[0033] Fig.10 It is a schematic diagram of the structure of the upper and lower ends of the grouting depth adjustment pipe.
[0034] Fig.11 Schematic diagram of the lower structure of the hollow pointed cone.
[0035] Fig.12 Schematic diagram of the upper structure of the hollow pointed cone.
[0036] Fig.13 It is a schematic diagram of the front view structure of a hollow pointed cone.
[0037] In the figure:
[0038] 1. Grouting anchor;
[0039] 11. Grouting hole; 12. Hollow pointed cone; 13. Strip hole; 14. Solid reinforced cone head; 15. Spiral cutter; 16. External convex ring;
[0040] 2. Grouting depth adjustment pipe; 3. Connecting pipe port; 4. Inspection cover; 5. First outer ring flange; 6. Second outer ring flange; 7. Adjusting pull piece; 8. Pressure gauge connection port. DETAILED DESCRIPTION
[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below 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, rather than all of the embodiments.
[0042] Reference Figure 1-13 A building foundation reinforcement device comprises a grouting anchor rod 1, wherein a grouting depth regulating tube 2 for sealing a grouting hole 11 is inserted inside the grouting anchor rod 1.
[0043] It is understandable that a plurality of grouting holes 11 are provided around the grouting hole 11, and the grouting holes 11 between adjacent layers are arranged in a staggered manner.
[0044] The outer diameter of the grouting depth adjustment tube 2 is in conformity with the inner diameter of the grouting anchor rod 1 ; the grouting hole 11 is blocked or opened by the grouting depth adjustment tube 2 .
[0045] Specifically, the grouting depth adjustment tube 2 is slidably adjusted in the grouting anchor rod 1; the grouting holes 11 separated from the grouting depth adjustment tube 2 form an externally connected state.
[0046] It should be noted that the lower end of the grouting depth adjustment tube 2 is open and communicated with the inside of the grouting anchor rod 1 to form a grouting channel.
[0047] When the utility model is used, the grouting anchor rod 1 is arranged within the scope of the foundation according to the design plan; then, the grouting depth adjustment tube 2 is inserted; the grouting depth adjustment tube 2 is initially at the lowest end (all grouting holes 11 are closed, or the grouting holes 11 of the lowest layer are exposed), and slurry is pumped inwardly; after the pressure reaches the design range, the grouting depth adjustment tube 2 is adjusted upward, and a layer of grouting holes 11 is staggered upward, and grouting is performed again; after the pressure reaches the design range, the grouting depth adjustment tube 2 is adjusted upward again; this cycle is repeated to ensure that grouting at various depths can achieve the designed effect and fully ensure the reinforcement effect.
[0048] It should be noted that the distance of a single upward adjustment of the grouting depth adjustment tube 2 is designed and selected according to actual conditions, such as the diameter of the grouting anchor rod 1, soil layer, geological conditions, etc.
[0049] In some embodiments, a connecting pipe opening 3 is provided on the outer side of the tail end of the grouting depth regulating pipe 2 to facilitate connection to a slurry pumping system.
[0050] In some embodiments, a depth scale is provided on the outside of the grouting depth adjustment tube 2; the current depth status can be intuitively seen, making adjustment and control more convenient.
[0051] In some embodiments, a hollow pointed cone 12 is provided at the head end of the grouting anchor rod 1 to facilitate penetration into the soil.
[0052] Furthermore, a plurality of strip-shaped holes 13 are formed through the hollow pointed cone 12 so as to pump out slurry from the tip to expand the effective range of grouting reinforcement.
[0053] In some embodiments, a solid reinforcing cone head 14 is disposed at the end of the hollow pointed cone 12 .
[0054] It is understandable that:
[0055] When processing the strip hole 13 on the hollow pointed cone 12, its tip is penetrated at the same time for the convenience of operation; at this time, the strength of the tip of the hollow pointed cone 12 is significantly reduced, and if it encounters obstacles such as stones during the process of entering the soil, the front end is easy to diverge, making it more difficult to enter the soil.
[0056] To solve this problem, a solid reinforcing cone head 14 is welded at the front end to increase its strength without affecting grouting; the burial operation is smoother and more powerful.
[0057] In some embodiments, a spiral cutter 15 is disposed on the outer surface of the hollow cone 12 .
[0058] In some embodiments, an outer convex ring 16 is provided at the connection position between the hollow pointed cone 12 and the grouting anchor rod 1 .
[0059] The outer protruding ring 16 can increase the strength of the connection point.
[0060] Preferably, the outer convex ring 16 is made of a metal round bar and is fully welded.
[0061] In some embodiments, a detachable inspection cover 4 is provided at the tail end of the grouting depth adjustment tube 2 to facilitate cleaning and maintenance of the grouting depth adjustment tube 2 .
[0062] The inspection cover 4 is in the form of a threaded connection.
[0063] In some embodiments, a first outer ring flange 5 is disposed at the tail end of the grouting anchor rod 1 , and a second outer ring flange 6 is disposed near the tail end of the grouting depth adjustment tube 2 .
[0064] Correspondingly, an adjusting pull piece 7 is provided between the first outer ring flange 5 and the second outer ring flange 6 to temporarily limit the insertion depth of the grouting depth adjusting pipe 2 .
[0065] Preferably, the adjusting puller 7 is a screw rod, and adjusting nuts are respectively provided at both ends of the screw rod.
[0066] It can be understood that the two adjusting nuts are respectively located at the lower end of the first outer ring flange 5 and the upper end of the second outer ring flange 6 .
[0067] The additional explanation is:
[0068] The adjusting pull piece 7 is not limited to a screw rod; it may be in the form of a retractable steel wire rope, an adjustable connector, etc.
[0069] In some embodiments, after the grouting is completed, the flange cover is sealed at the tail end of the grouting anchor rod 1.
[0070] In some embodiments, a pressure gauge connection port 8 is provided on the outer side of the tail end of the grouting depth regulating tube 2 to measure the grouting pressure in real time.
[0071] When the utility model is used, the grouting position is designed according to the specific conditions of the foundation, the required scope of reinforcement, and the reinforcement requirements; and according to the design, the grouting anchor rod 1 is inserted into the foundation; then, according to the design parameters, the grouting speed, pressure, the insertion depth of the grouting depth adjustment tube 2, etc. are adjusted to carry out continuous grouting until the design requirements are met and the reinforcement of the foundation is completed.
[0072] In the utility model, grouting is controllable, ensuring that grouting at all depths can achieve the designed effect and fully ensure the reinforcement effect; a depth scale is provided, so that the current depth status can be intuitively seen, which is convenient for adjustment and control; a strip hole 13 is provided on the hollow pointed cone 12, and slurry is pumped out from the tip to expand the effective range of grouting reinforcement; a solid reinforced cone head 14 is provided to increase the strength without affecting the grouting, and the grouting operation is smoother and more powerful; an outer convex ring 16 is provided to strengthen the strength of the connection point; an inspection cover 4 is provided to facilitate cleaning and maintenance of the grouting depth adjustment tube 2; a pressure gauge connection port 8 is provided to measure the grouting pressure in real time.
[0073] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0075] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A building foundation reinforcement device, comprising a grouting anchor rod (1), characterized in that: A grouting depth adjustment tube (2) for sealing the grouting hole (11) is inserted into the interior of the grouting anchor rod (1); A connecting pipe opening (3) is arranged on the outer side of the rear end of the grouting depth adjustment pipe (2); The outside of the grouting depth adjustment tube (2) is provided with a depth scale.
2. The building foundation reinforcement device according to claim 1, characterized in that: The head end of the grouting anchor rod (1) is provided with a hollow pointed cone (12); The hollow pointed cone (12) is provided with a plurality of strip-shaped holes (13) extending therethrough.
3. The building foundation reinforcement device according to claim 2, characterized in that: A solid reinforced cone head (14) is provided at the end of the hollow pointed cone (12).
4. The building foundation reinforcement device according to claim 2, characterized in that: The outer surface of the hollow pointed cone (12) is provided with a spiral cutter (15).
5. The building foundation reinforcement device according to claim 2, characterized in that: An outer convex ring (16) is provided at the connection position between the hollow pointed cone (12) and the grouting anchor rod (1).
6. The building foundation reinforcement device according to claim 5, characterized in that: The outer convex ring (16) is welded with metal round bars.
7. The building foundation reinforcement device according to claim 1, characterized in that: The tail end of the grouting depth adjustment tube (2) is detachably provided with an inspection cover (4).
8. The building foundation reinforcement device according to claim 1, characterized in that: The tail end of the grouting anchor rod (1) is provided with a first outer ring flange (5), and the grouting depth adjustment tube (2) is provided with a second outer ring flange (6) near the tail end; An adjusting pull piece (7) is provided between the first outer ring flange (5) and the second outer ring flange (6).
9. The building foundation reinforcement device according to claim 8, characterized in that: The adjusting puller (7) adopts a screw rod, and both ends of the screw rod are respectively provided with adjusting nuts.
10. The building foundation reinforcement device according to claim 1, characterized in that: A pressure gauge connection port (8) is provided on the outer side of the tail end of the grouting depth adjustment tube (2).