Supporting structure soil nailing wall grouting hole plugging structure
Through the combined structure of sealing parts, steel bars and reinforcement bars, the problems of unfull grouting and unstable steel bars in the construction of soil nail walls are solved, and the stable connection of slurry and the centralized and stable setting of steel bars are achieved, which improves the construction quality.
Patent Information
- Application Number
- CN202421989415.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The grouting in the existing soil nail wall is not full, the quality of the orifices is not high, and the steel bars are not fixed firmly, making it difficult to ensure that the steel bars are set in the center.
The combination structure of sealing parts, steel bars and reinforcement bars is adopted. The sealing parts are conical and are equipped with fixing holes and grouting holes. The steel bars penetrate through the fixing holes and are connected to the elastic steel sheets and reinforcement bars. Grouting is carried out through the inclined grouting holes and grouting pipes to ensure the stable connection of the steel bars.
Effectively prevent slurry from flowing out, ensure that the steel bars are centrally and stably set, and improve the stability and connection strength of the steel bars.
Smart Images
Figure CN223048053U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of foundation pit support, in particular to a plugging structure for grouting holes of a soil nailing wall of a support structure. Background Art
[0002] The soil nailing wall is an in-situ soil reinforcement technology, which reinforces the foundation pit slope through soil nails made of steel bars. A steel bar mesh is laid on the slope surface and then a layer of concrete surface layer is sprayed to combine with the earth slope for slope reinforcement support construction method.
[0003] In the existing soil nailing wall construction, generally, mechanical equipment such as drills is used to drill holes in the soil body. After the holes are formed, steel bars are inserted, then cement slurry is injected, and finally measures such as waste woven bags, rubber rings, and cloth bags are used to plug the hole openings to prevent the slurry from flowing out. After the slurry starts to set, the surface of the grouting hole opening is leveled. This method is likely to cause incomplete grouting and poor quality of the surface leveling of the grouting hole opening, and the end steel bars are not firmly fixed, and it cannot ensure that the steel bars are centered. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the problems in the existing technology, and a plugging structure for grouting holes of a soil nailing wall with strong stability, preventing slurry from flowing out, and ensuring the stable and centered setting of steel bars is proposed.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A plugging structure for grouting holes of a soil nailing wall of a support structure, which is used to plug grouting holes, includes:
[0007] A plugging member, the middle of which is provided with a fixing hole and the upper part is provided with a grouting hole;
[0008] A steel bar, the steel bar passes through the fixing hole, and one end of the steel bar located inside the grouting hole is provided with a plurality of fixing grooves;
[0009] And a plurality of reinforcing ribs, one end of each reinforcing rib is embedded inside the plugging member, and the other end is fixedly connected with a steel sheet, and one end of each steel sheet is embedded in a fixing groove.
[0010] Further, the plugging member includes a plugging block and a panel. The plugging block is conical, the panel is arranged on one side of the plugging block, the plugging block is located inside the grouting hole, and the diameter of the panel is larger than the diameter of the grouting hole.
[0011] Further, the plugging member is a precast cement mortar member.
[0012] Further, both ends of the reinforcing rib are provided with hook-shaped parts, and the two hook-shaped parts are respectively located inside the plugging member and inside the grouting hole.
[0013] Furthermore, the fixing grooves are arranged staggeredly along the length direction of the steel bars, and the lengths of the reinforcing ribs are unequal.
[0014] Furthermore, the steel sheet is an elastic steel sheet, and one end side wall of each steel sheet is attached to a fixing groove.
[0015] Furthermore, the grouting holes are inclined.
[0016] Furthermore, a grouting pipe is further included, and one end of the grouting pipe is inserted into the interior of the grouting hole.
[0017] Furthermore, the grouting pipe includes an insertion pipe and a funnel. The bottom end of the insertion pipe is inserted into the grouting hole obliquely, and the top end is communicated with the bottom of the funnel.
[0018] Furthermore, the diameter of the fixing hole on the plugging member is the same as the diameter of the steel bar.
[0019] The beneficial effects of the present utility model are as follows:
[0020] In the present utility model, the plugging structure of the grouting hole of the soil nailing wall of the supporting structure enables the conical plugging block to be embedded into the hole opening of the grouting hole, so that the plugging block plugs the hole opening, and the panel shields the hole opening to avoid slurry leakage;
[0021] One end of the steel bar is inserted into the grouting hole through the fixing hole in the center. After the steel bar is inserted, the elastic steel sheet will be embedded into the corresponding fixing groove, so that the steel bar is connected to the plugging member through the steel sheet and the reinforcing rib, thereby improving the stability of the steel bar. The grouting pipe is inserted into the grouting hole for grouting through the inclined grouting hole, or the concrete slurry is poured into the grouting hole through the funnel and the insertion pipe. After the grouting is completed, one end of the steel bar inserted into the grouting hole, the steel sheet and one end of the reinforcing rib will be embedded into the concrete slurry in the grouting hole, so that the steel bar is firmly connected to the plugging member. Description of the Drawings
[0022] Figure 1 It is a three-dimensional structure schematic diagram of a plugging structure of a grouting hole of a soil nailing wall of a supporting structure proposed by the present utility model;
[0023] Figure 2 It is a cross-sectional structure schematic diagram of a plugging structure of a grouting hole of a soil nailing wall of a supporting structure proposed by the present utility model.
[0024] In the figure: 1 plugging member, 101 plugging block, 102 panel, 103 grouting hole, 2 grouting pipe, 201 insertion pipe, 202 funnel, 3 grouting hole, 4 steel bar, 401 fixing groove, 5 reinforcing rib, 501 hook portion, 6 steel sheet. Detailed Embodiments
[0025] The technical solutions of this patent will be further described in detail below in conjunction with the specific embodiments.
[0026] Embodiments of the present patent will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present patent and should not be construed as a limitation of the present patent.
[0027] In the description of the present patent, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present patent.
[0028] In the description of the present patent, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present patent can be understood according to specific circumstances.
[0029] Referring to Figure 1-2 , a plugging structure for the grouting holes of a soil nailing wall of a support structure, which is applied to plug the grouting holes, in order to avoid the outflow of the slurry, ensure the stable setting of the steel bars in the middle, and at the same time improve the stability.
[0030] The plugging structure for the grouting holes of the soil nailing wall of the support structure includes a plugging member 1, a steel bar 4, and a plurality of reinforcing ribs 5;
[0031] The plugging member 1 is a precast cement mortar member. The plugging member 1 includes a plugging block 101 and a panel 102. The plugging block 101 is conical. The panel 102 is arranged on one side of the plugging block 101. The plugging block 101 is located inside the grouting hole 3. The diameter of the panel 102 is larger than the diameter of the grouting hole 3. During construction, the plugging block 101 can be embedded into the grouting hole 3, and the panel 102 shields the opening of the grouting hole 3, so that the plugging member 1 plugs the opening of the grouting hole 3 to avoid the outflow of the slurry.
[0032] An inclined grouting hole 103 is provided at the upper part of the plugging member 1. The inclined grouting hole 103 avoids the outflow of the slurry when the concrete slurry is poured into the grouting hole 3. One end of the grouting pipe 2 is inserted into the grouting hole 103. The grouting pipe 2 includes an insertion pipe 201 and a funnel 202. The bottom end of the insertion pipe 201 is inclined and inserted into the grouting hole 103, and the top end is communicated with the bottom of the funnel 202. It is convenient to pour the concrete slurry into the grouting hole 3 through the funnel 202 and the insertion pipe 201.
[0033] A fixing hole is provided in the middle of the plugging member 1, and the steel bar 4 passes through the fixing hole. The diameter of the fixing hole is the same as that of the steel bar 4, so as to ensure that the steel bar 4 is centered.
[0034] Hook-shaped parts 501 are provided at both ends of the reinforcing rib 5. The two hook-shaped parts 501 are respectively located inside the plugging member 1 and inside the grouting hole 3. The hook-shaped parts 501 of the reinforcing rib 5 can improve the stability of the connection between the plugging member 1 and the concrete slurry inside the grouting hole 3.
[0035] One end of each reinforcing rib 5 is embedded inside the plugging member 1, and the other end is fixedly connected with a steel sheet 6. The steel sheet 6 is an elastic steel sheet. A plurality of fixing grooves 401 are provided at one end of the steel bar 4 located inside the grouting hole 3. The fixing grooves 401 are staggered from each other along the length direction of the steel bar 4. The lengths of the reinforcing ribs 5 are different, so that one end side wall of each steel sheet 6 can be fitted and embedded into a fixing groove 401. After the steel bar 4 is inserted into the fixing hole, the elastic steel sheet 6 will be embedded into the corresponding fixing groove 401, so that the steel bar 4 is connected with the plugging member 1 through the steel sheet 6 and the reinforcing rib 5, thereby improving the stability of the steel bar 4.
[0036] The working principle of the plugging structure of the grouting hole of the soil nail wall of the support structure: First, drill a hole in the soil through mechanical equipment such as a drill to form a grouting hole 3. Then, embed the conical plugging block 101 of the prefabricated plugging member 1 into the hole of the grouting hole 3, so that the plugging block 101 plugs the hole, and the panel 102 shields the hole to prevent slurry leakage;
[0037] Then insert the steel bar 4 through the fixing hole. One end of the steel bar 4 passes through the plugging member 1 and is inserted into the grouting hole 3. After the steel bar 4 is inserted into the fixing hole, the elastic steel sheet 6 will be embedded into the corresponding fixing groove 401, so that the steel bar 4 is connected with the plugging member 1 through the steel sheet 6 and the reinforcing rib 5, thereby improving the stability of the steel bar 4;
[0038] Finally, insert the grouting pipe through the inclined grouting hole 103 for grouting, or tilt the bottom end of the inserting pipe 201 and insert it into the grouting hole 103. Then pour the concrete slurry into the grouting hole 3 through the funnel 202 and the inserting pipe 201. After the grouting is completed, one end of the steel bar 4 inserted into the grouting hole 3, the steel sheet 6 and one end of the reinforcing rib 5 will be embedded into the concrete slurry in the grouting hole 3, so that the steel bar 4 is firmly connected with the plugging member 1.
[0039] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A grouting hole plugging structure of a soil nail wall of a supporting structure, the plugging structure is used to plug the grouting hole (3), characterized in that: include: A plugging member (1), wherein a fixing hole is provided in the middle portion of the plugging member (1) and a grouting hole (103) is provided in the upper portion; A steel bar (4), wherein the steel bar (4) passes through the fixing hole, and one end of the steel bar (4) located inside the grouting hole (3) is provided with a plurality of fixing grooves (401); and a plurality of reinforcing ribs (5), one end of each reinforcing rib (5) being embedded in the interior of the blocking member (1) and the other end being fixedly connected to a steel sheet (6), and one end of each steel sheet (6) being embedded in one of the fixing grooves (401).
2. The support structure soil nail wall grouting hole blocking structure according to claim 1 is characterized by: The blocking member (1) comprises a blocking block (101) and a panel (102); the blocking block (101) is conical in shape; the panel (102) is arranged on one side of the blocking block (101); the blocking block (101) is located inside the grouting hole (3); and the diameter of the panel (102) is greater than the diameter of the grouting hole (3).
3. The support structure soil nail wall grouting hole blocking structure according to claim 1 is characterized by: The blocking member (1) is a prefabricated cement mortar member.
4. The support structure soil nail wall grouting hole blocking structure according to claim 1 is characterized by: Both ends of the reinforcing rib (5) are provided with hook-shaped portions (501), and the two hook-shaped portions (501) are respectively located inside the blocking member (1) and inside the grouting hole (3).
5. The support structure soil nail wall grouting hole blocking structure according to claim 1 is characterized by: The fixing grooves (401) are staggered with each other along the length direction of the steel bars (4), and the reinforcing ribs (5) are of different lengths.
6. The support structure soil nail wall grouting hole blocking structure according to claim 1, characterized in that: The steel sheets (6) are elastic steel sheets, and a side wall at one end of each of the steel sheets (6) fits into a fixing groove (401).
7. The support structure soil nail wall grouting hole blocking structure according to claim 1 is characterized by: The grouting hole (103) is inclined.
8. The support structure soil nail wall grouting hole blocking structure according to claim 1, characterized in that: It also comprises a grouting pipe (2), one end of which is inserted into the grouting hole (103).
9. The support structure soil nail wall grouting hole blocking structure according to claim 8, characterized in that: The grouting pipe (2) comprises a plug (201) and a funnel (202); the bottom end of the plug (201) is obliquely inserted into the grouting hole (103), and the top end is connected to the bottom of the funnel (202).
10. The support structure soil nail wall grouting hole blocking structure according to claim 1, characterized in that: The diameter of the fixing hole on the blocking member (1) is consistent with the diameter of the steel bar (4).