Gravity retaining wall formwork anti-floating structure
By setting horizontal bars between the retaining wall formwork and the inclined formwork and using the abutments on the insert bars to abut against the through holes for fixation, the problem of gravity retaining wall formwork floating during concrete pouring was solved, thus improving the stability and anti-buoyancy of the formwork.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAIBEI CHENYUAN ENGINEERING DESIGN CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-31
AI Technical Summary
In water conservancy projects, gravity retaining wall formwork is prone to floating during concrete pouring due to buoyancy, which can damage the formwork and prevent normal pouring.
A horizontal bar is installed between the retaining wall formwork and the inclined formwork, and through holes of different diameters are made on the horizontal bar. The formwork is fixed by the abutment on the insert bar against the through holes, thereby enhancing the anti-buoyancy ability of the formwork.
It improves the overall anti-buoyancy capacity of the template, ensures the structural stability of the gravity retaining wall template, prevents floating damage, and ensures the smooth progress of concrete pouring.
Smart Images
Figure CN224578759U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of water conservancy engineering, and in particular to a gravity retaining wall formwork anti-buoyancy structure. Background Technology
[0002] Gravity retaining walls maintain their stability under lateral pressure by their own weight. Although it may seem like a simple pouring operation, in water conservancy projects, there are high requirements for the foundation embedment depth, masonry and pouring materials, construction of the retaining wall, and the impact of different construction environments on the selection of construction methods, stability, safety and other precautions.
[0003] In hydraulic engineering, gravity retaining walls are commonly used. Construction requires first establishing a fixed retaining wall formwork, i.e., a model of the gravity retaining wall, and then pouring concrete into the formwork. However, gravity retaining walls are often designed with inclined formwork. During concrete pouring, the inclined formwork is subjected to buoyancy forces from the concrete. When these buoyancy forces exceed the force required to fix the formwork, it will float upwards, potentially causing it to float or become damaged, preventing concrete pouring. Therefore, to address this problem, this application provides an anti-buoyancy structure for gravity retaining wall formwork. Utility Model Content
[0004] To address the aforementioned issues, this application provides a gravity-type retaining wall formwork anti-buoyancy structure.
[0005] This application provides a gravity-type retaining wall template anti-buoyancy structure, including a retaining wall template and an inclined template. A horizontal bar is fixed between the retaining wall template and the inclined template from top to bottom. A circular through hole is coaxially opened on the horizontal bar, and the diameter of the circular through hole gradually increases from top to bottom. An insert rod is inserted into the coaxial circular through hole of the horizontal bar group. The insert rod is provided with a stop block that is larger than the diameter of the next-level through hole but smaller than the diameter of the previous-level through hole.
[0006] By setting horizontal bars between the retaining wall formwork and the inclined formwork, and opening through holes of different diameters on the horizontal bars, inserting rods into the through holes, and using the abutments of different diameters on the inserts to abut against the through holes of different diameters, the position of the inserts is fixed to the horizontal bars, thereby improving the overall anti-buoyancy of the formwork.
[0007] Preferably, the crossbar includes a bottom crossbar, a middle crossbar, and a top crossbar, and the bottom crossbar, the middle crossbar, and the top crossbar are arranged to overlap in plan view.
[0008] Preferably, the top crossbar has a through hole one, the middle crossbar has a through hole two, and the top crossbar has a through hole three, with the diameters of the through holes one, two, and three increasing sequentially.
[0009] Preferably, a lower abutment block and a middle abutment block are fixed on the insertion rod, and the top end of the insertion rod is vertically fixed to the top plate.
[0010] Preferably, the diameter of the lower abutment block is larger than that of through hole one and smaller than that of through hole two.
[0011] Preferably, the diameter of the middle block is larger than that of through hole two and smaller than that of through hole three.
[0012] Preferably, the diameter of the top plate is larger than that of the through hole.
[0013] Preferably, the bottom ends of both the retaining wall template and the inclined template are welded with horizontally arranged side plates, and pins are inserted into the side plates for connection with the underlying base.
[0014] In summary, this application includes the following beneficial technical effects:
[0015] By setting horizontal bars between the retaining wall formwork and the inclined formwork, and opening through holes of different diameters on the horizontal bars, inserting rods into the through holes, and using the abutments of different diameters on the inserts to abut against the through holes of different diameters, the position of the inserts is fixed to the horizontal bars, thereby improving the overall anti-buoyancy of the formwork. Attached Figure Description
[0016] Figure 1 It is the isometric drawing in Embodiment 1 of this application;
[0017] Figure 2 This is the rear view isometric drawing from Embodiment 1 of this application;
[0018] Figure 3 This is a longitudinal sectional view of Embodiment 1 of this application;
[0019] Figure 4 This is a diagram of the insert structure in Embodiment 1 of this application.
[0020] Explanation of reference numerals in the attached drawings: 1. Retaining wall formwork; 2. Sloping formwork; 3. Side plate; 4. Pin; 5. Bottom horizontal bar; 51. Through hole one; 6. Middle horizontal bar; 61. Through hole two; 7. Top horizontal bar; 71. Through hole three; 8. Insert rod; 81. Lower abutment block; 82. Middle abutment block; 83. Top plate. Detailed Implementation
[0021] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.
[0022] Example 1:
[0023] A gravity retaining wall formwork anti-buoyancy structure, referring to Figure 1 - Figure 4A horizontal bar is fixed between the retaining wall template 1 and the inclined template 2 from top to bottom. A circular through hole is opened coaxially on the horizontal bar, and the diameter of the circular through hole gradually increases from top to bottom. An insert rod 8 is inserted into the coaxial circular through hole of the horizontal bar group. A stop block is provided on the insert rod 8, which is larger than the diameter of the next level through hole but smaller than the diameter of the previous level through hole.
[0024] By setting a horizontal bar between the retaining wall template 1 and the inclined template 2, and opening through holes of different diameters on the horizontal bar, inserting a rod 8 into the through holes, and using the abutments of different diameters on the rod 8 and the through holes of different diameters to make contact, the rod 8 fixes the position of the horizontal bar, thereby improving the overall anti-buoyancy of the template.
[0025] The crossbars include a bottom crossbar 5, a middle crossbar 6, and a top crossbar 7, which are arranged to overlap in the top view.
[0026] A through hole 51 is made on the top crossbar 7, a through hole 61 is made on the middle crossbar 6, and a through hole 71 is made on the top crossbar 7. The diameters of the through holes 51, 61, and 71 increase sequentially.
[0027] The lower stop block 81 and the middle stop block 82 are fixed on the insert rod 8, and the top end of the insert rod 8 is vertically fixed to the top plate 83.
[0028] The diameter of the lower abutment block 81 is larger than that of through hole 51 and smaller than that of through hole 61. The diameter of the middle abutment block 82 is larger than that of through hole 61 and smaller than that of through hole 71. The diameter of the top plate 83 is larger than that of through hole 71. This arrangement allows the insert rod 8 to pass through the top crossbar 7, the middle crossbar 6 and the bottom crossbar 5 in sequence, while also providing downward pressure on all crossbars under the action of the lower abutment block 81, the middle abutment block 82 and the top plate 83.
[0029] Both the retaining wall template 1 and the inclined template 2 have horizontally arranged side pieces 3 welded to their bottom ends, and pins 4 are inserted into the side pieces 3 for connection with the base below.
[0030] Template and side plate connection: At the bottom of the retaining wall template 1 and the inclined template 2, the side plate 3 is welded and fixed. The side plate 3 is kept horizontal and will be used to connect to the base below through the pin 4.
[0031] Horizontal bar installation: Fix the bottom horizontal bar 5, middle horizontal bar 6, and top horizontal bar 7 sequentially from bottom to top between the retaining wall template 1 and the inclined template 2, ensuring that the top view of the bottom horizontal bar 5, middle horizontal bar 6, and top horizontal bar 7 coincides, and that the coaxial through holes of the three (through hole 51 of the bottom horizontal bar 5, through hole 61 of the middle horizontal bar 6, and through hole 71 of the top horizontal bar 7, with the diameter increasing sequentially) are on the same vertical line.
[0032] Insertion of the insert rod: Insert the insert rod 8 into the coaxial through hole. The insert rod 8 passes through the through hole 3 71 of the top crossbar 7, the through hole 2 61 of the middle crossbar 6, and the through hole 1 51 of the bottom crossbar 5 in sequence. During the process, the lower abutment block 81 abuts against the lower surface of the top crossbar 7 (because the diameter of the lower abutment block 81 is larger than the through hole 3 71), the middle abutment block 82 abuts against the lower surface of the middle crossbar 6 (because the diameter of the middle abutment block 82 is larger than the through hole 2 61), and the top plate 83 abuts against the upper surface of the top crossbar 7 (because the diameter of the top plate 83 is larger than the through hole 3 71). By using the abutment blocks to abut against through holes of different diameters, the position of the insert rod 8 is fixed, so that the insert rod 8 applies downward pressure to the crossbar.
[0033] Base connection: Insert pins 4 into the bottom side plates 3 of the retaining wall template 1 and the inclined template 2 to connect the entire structure to the base below, thereby enhancing stability.
[0034] III. Working Principle and Effects
[0035] When the retaining wall formwork is subjected to buoyancy, the horizontal bars tend to move upward due to the formwork's pull. The insert rod 8, through the lower abutment block 81, the middle abutment block 82, and the top plate 83, contacts the through holes of different horizontal bars, restricting the upward displacement of the horizontal bars and transferring the buoyancy to the insert rod 8. Then, by utilizing the connection between the insert rod 8 and the base, etc. (the insert rod 8 itself can be partially inserted into the base or constrained by the structure's own weight, etc.), the effect of buoyancy is offset, improving the overall anti-buoyancy capacity of the formwork and ensuring the structural stability during the construction of the gravity retaining wall formwork.
[0036] The foregoing description, with reference to preferred embodiments, illustrates an exemplary implementation of a gravity retaining wall template anti-buoyancy structure provided by this disclosure. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, the protection scope of which is determined by the appended claims.
Claims
1. A gravity retaining wall form (1) anti-floating structure, comprising a retaining wall form (1) and an inclined plane form (2), characterized in that: A horizontal bar is fixed between the retaining wall template (1) and the inclined template (2) from top to bottom. A circular through hole is opened coaxially on the horizontal bar, and the diameter of the circular through hole gradually increases from top to bottom. A plug (8) is inserted into the coaxial circular through hole of the horizontal bar group. A stop block larger than the next level through hole but smaller than the diameter of the previous level through hole is provided on the plug (8).
2. The gravity retaining wall form anti-float structure according to claim 1, wherein: The crossbars include a bottom crossbar (5), a middle crossbar (6), and a top crossbar (7), which are arranged to overlap in a top view.
3. The gravity retaining wall formwork anti-buoyancy structure according to claim 2, characterized in that: The top crossbar (7) has a through hole 1 (51), the middle crossbar (6) has a through hole 2 (61), and the top crossbar (7) has a through hole 3 (71). The diameters of the through holes 1 (51), 2 (61), and 3 (71) increase sequentially.
4. The gravity retaining wall form anti-float structure according to claim 3, wherein: The lower abutment block (81) and the middle abutment block (82) are fixed on the insert rod (8), and the top plate (83) is fixed vertically at the top of the insert rod (8).
5. The gravity retaining wall form anti-float structure according to claim 4, wherein: The diameter of the lower abutment block (81) is larger than that of through hole one (51) and smaller than that of through hole two (61).
6. The gravity retaining wall form anti-float structure according to claim 5, wherein: The diameter of the middle block (82) is larger than that of the second through hole (61) and smaller than that of the third through hole (71).
7. The gravity retaining wall form anti-float structure according to claim 6, wherein: The diameter of the top plate (83) is larger than that of the through hole three (71).
8. The gravity retaining wall form anti-float structure according to claim 1, wherein: The bottom ends of the retaining wall template (1) and the inclined template (2) are welded with horizontally arranged side pieces (3), and pins (4) are inserted on the side pieces (3) for connection with the base below.