Waterproof roll fixing embedded part for anchoring and shotcreting underground structure side wall
By using embedded parts of thin steel plates and strong magnets in the sidewalls of underground structures, the problem of perforation damage during the laying of waterproof membrane was solved, achieving the effects of damage-free fixing and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, leakage problems occur when laying waterproof membrane on the side walls of underground structures due to temporary nail holes, and traditional fixing methods damage the membrane.
The system uses embedded parts consisting of thin steel plates and strong magnets, which are fixed by welding steel bars and steel mesh. The strong magnets are used to attract the waterproof membrane, avoiding damage to nail holes and achieving temporary fixation.
This avoids damage to the waterproof membrane by perforation, ensuring waterproofing effect and service life, while reducing construction costs and material consumption.
Smart Images

Figure CN224048234U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of building construction, especially relate to a kind of for anchor spray underground structure side wall waterproofing membrane fixed embedded part. BACKGROUND
[0002] Waterproofing membrane generally adopts asphalt type waterproofing membrane or polymer type waterproofing membrane for large underground structure laying, is restricted by space limitation, and cement nail is generally used to press strip method when waterproofing membrane of underground structure side wall is laid Temporary nail on the concrete enclosure structure of anchor spray, so that it causes the perforation of waterproofing membrane, and leakage problem is easily caused in later period. SUMMARY
[0003] The present application overcomes the deficiencies of the background art and provides a kind of for anchor spray underground structure side wall waterproofing membrane fixed embedded part.
[0004] The present application is realized by the following technical solutions:
[0005] A kind of for anchor spray underground structure side wall waterproofing membrane fixed embedded part, including thin steel sheet, the thin steel sheet is vertically welded with several reinforcing bars, reinforcing bar end is welded on reinforcing mesh, and reinforcing bar length is equal to the thickness of anchor spray;It also includes strong magnet, and strong magnet is equipped with grab ring.
[0006] Preferably, the reinforcing bar is 10-15cm long.
[0007] Preferably, the thin steel sheet is 2mm thick.
[0008] Preferably, the thin steel sheet is square steel sheet, and the side length of thin steel sheet is 5cm.
[0009] Preferably, the strong magnet is cylindrical strong magnet, and the diameter of strong magnet is 5cm.
[0010] The embedded part of the application avoids the problem of temporary fixing by nailing perforation when waterproofing membrane is laid, does not cause damage to waterproofing membrane, solves the leakage problem caused by perforation;The embedded part of the application can also control the thickness of anchor spray, which ensures the flatness of waterproofing surface to some extent;The strong magnet of the application can be reused, with low cost, reduces construction consumables and cost. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is the whole structure schematic view of the embodiment;
[0012] Figure 2 It is the thin steel sheet structure schematic view of the embodiment;
[0013] Figure 3 It is the strong magnet structure schematic view of the embodiment.
[0014] In the figure, 1 is a thin steel plate, 2 is a reinforcing bar, 3 is a strong magnet, and 4 is a grab ring. DETAILED DESCRIPTION
[0015] To make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application.
[0016] In the embodiment, a thin steel plate 1 with a thickness of 2 mm is used, and the thin steel plate 1 is a square steel plate with a side length of 5 cm. Four reinforcing bars 2 are vertically welded on the thin steel plate 1, and the end heads of the other ends of the reinforcing bars 2 are welded on the reinforcing mesh hung on the maintenance structure. The reinforcing bars 2 used are screw steel, and the length of the reinforcing bars 2 is equal to the shotcrete thickness. The shotcrete thickness can be controlled by the length of the reinforcing bars 2, and the shotcrete surface of the concrete can be shot to be flush with the thin steel plate 1. Generally, the shotcrete thickness is between 10-15 cm, so the length of the reinforcing bars 2 used in the embodiment is 10-15 cm.
[0017] The present application also includes a strong magnet 3 that can be adsorbed to the thin steel plate 1. In the embodiment, a cylindrical strong magnet with a diameter of 5 cm is used, and a grab ring 4 is arranged on the strong magnet 3 to facilitate workers to move the strong magnet 3.
[0018] During construction, when the surrounding structure such as a pile foundation is suspended with a reinforcing mesh, a pre-embedded part is welded, the end head of the reinforcing bar 2 of the pre-embedded part is welded on the reinforcing mesh, and a pre-embedded part of the present application is welded at a certain distance in the up-down direction and left-right direction of the reinforcing mesh. Then, the concrete is shot, and when the shotcrete covers the reinforcing bar 2 and is flush with the thin steel plate 1, the shotcrete is completed, and then the waterproofing membrane is laid, and the waterproofing membrane is laid on the shotcrete and the thin steel plate 1. Then, the strong magnet 3 is used to adsorb the thin steel plate 1 through the waterproofing membrane, and the waterproofing membrane is temporarily fixed. At this time, the structure outside the waterproofing membrane is constructed, and after the waterproofing membrane in the area is laid and the structure outside the waterproofing membrane is constructed, the strong magnet 3 is removed, and the waterproofing membrane in the next area is laid and the structure outside the waterproofing membrane is constructed in the same way. The strong magnet 3 temporarily fixes the waterproofing membrane during the construction of the waterproofing membrane, avoids the traditional temporary fixing method of perforating and setting cement nails and pressing strips, does not damage the waterproofing membrane, and ensures the waterproofing effect and service life in the later period.
[0019] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not to limit them; those skilled in the art should understand that: the technical solutions recorded in the above embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. An embedded part for fixing waterproof membrane on the sidewall of an anchor-sprayed underground structure, characterized in that: The utility model relates to a kind of steel bar and thin steel plate combination, including thin steel plate (1), several steel bars (2) are vertically welded on the thin steel plate (1), steel bar (2) end is welded on steel bar net, and the length of steel bar (2) is equal to the thickness of shotcrete;Strong magnet (3) is further included, and there is a grab ring (4) on strong magnet (3).
2. The pre-embedded anchor for anchoring the waterproofing membrane of the side wall of the underground structure according to claim 1, characterized in that: The steel bar (2) is 10-15 cm long.
3. The pre-embedded anchor for anchoring waterproofing membrane to the side wall of an underground structure according to claim 1, wherein: The thin steel plate (1) is 2 mm thick.
4. The pre-embedded anchor for anchoring waterproofing membrane to the side wall of an underground structure according to claim 1, wherein: The thin steel plate (1) is a square steel plate, and the side length of the thin steel plate (1) is 5 cm.
5. The pre-embedded anchor for anchoring waterproofing membrane to the side wall of an underground structure according to claim 4, wherein: The strong magnet (3) is a cylindrical strong magnet, and the diameter of the strong magnet (3) is 5 cm.