Underwater retaining wall integral type pouring formwork and positioning frame
The design of the integrated underwater retaining wall casting template and positioning frame solves the problems of traditional cofferdam construction in complex hydrological and special geographical environments, realizing efficient and environmentally friendly underwater concrete construction and reducing construction costs and time.
Patent Information
- Application Number
- CN202423185303.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Traditional cofferdam construction is difficult to implement effectively under complex and variable hydrological conditions and special geographical environments, resulting in long construction cycles and harm to the ecological environment. Furthermore, steel sheet pile cofferdams are difficult to implement due to geological limitations.
The underwater retaining wall adopts an integral casting formwork and positioning frame. The cavity is formed by the water-facing plate, the back plate and the side upright plate. The formwork is locked by tie rods and locking nuts to enhance rigidity and stability. After being pre-assembled on the shore by the positioning frame, the whole structure is launched into the water for concrete pouring, avoiding the need for cofferdam construction.
It improves the rigidity and stability of the formwork, prevents deformation, ensures the quality of pouring, reduces environmental pollution from construction, saves manpower, materials and time, reduces construction costs, and shortens the construction cycle.
Smart Images
Figure CN223562076U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of hydraulic engineering, and particularly relates to an underwater retaining wall integral pouring formwork and positioning frame. BACKGROUND
[0002] The underwater concrete structure construction of the front retaining wall of the inland gravity wharf, the slope wharf and the frame wharf has been a challenging task. With the continuous improvement of environmental protection requirements, the urgency of the construction period, the complex and changeable hydrological conditions and the special geographical environment, the traditional cofferdam construction method faces many difficulties in practical application, for example, in the complex environment such as turbulent water flow, the cofferdam construction period is often too long; the earth-rock cofferdam construction may cause damage to the ecological environment; the construction of the steel sheet pile cofferdam is limited by the geological conditions, which often makes the traditional cofferdam construction difficult to effectively implement. SUMMARY
[0003] The utility model aims at providing an underwater retaining wall integral pouring formwork and positioning frame, which solves the problem that the traditional cofferdam construction is often difficult to effectively implement due to environmental protection requirements, complex and changeable hydrological conditions and special geographical environment.
[0004] The utility model discloses the following technical scheme: an underwater retaining wall integral pouring formwork, including the water board, the back water board and the side stand plate that sets up in the water board and the back water board both sides, the side stand plate both ends are bolted with the water board and the back water board respectively, and the cavity for pouring concrete is formed by surrounding, the water board and the back water board are equipped with the locking nut of the opposite pull screw that is equipped with between the threaded connection, the back rib that is used for abutting the locking nut is arranged on the outer wall of the water board and the back water board.
[0005] Further, the back rib is composed of two channel steels arranged back to the notch, and a gap for passing the opposite pull screw is left between the two channel steels.
[0006] Further, the cavity is a trapezoidal space with small upper and large lower.
[0007] Further, the outer wall of the water board and the back water board is provided with a plurality of horizontal ribs at intervals, and the back rib is vertically crossed and welded on the plurality of horizontal ribs.
[0008] Further, the outer wall of the side stand plate is provided with a plurality of vertical ribs at intervals, and a plurality of horizontal ribs are vertically crossed and welded on the vertical ribs.
[0009] Further, the water board, the back water board and the side stand plate are all provided with lifting rings.
[0010] A positioning frame comprises a plurality of frames connected side by side by a cross beam, and the frame comprises a bottom beam for supporting the water board and the back water board, and an inclined support beam for the water board and the back water board to lean against and position the side stand plate.
[0011] The utility model has at least the following advantages and beneficial effects: the cavity for pouring concrete is formed by the water-facing plate, the backwater plate and the two side plates, and the locking nut is connected with the pull screw through thread cooperation, and abuts on the back rib, so that the water-facing plate and the backwater plate are pulled and locked, the formwork has good rigidity and stability, the ability of the formwork to resist the lateral pressure of concrete during pouring is enhanced, the formwork is prevented from deforming, and the pouring quality is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 The utility model provides a kind of connection schematic diagram of underwater retaining wall integrated formwork and positioning frame.
[0013] Figure 2 The utility model provides a kind of structure schematic view of underwater retaining wall integrated formwork.
[0014] Figure 3 The utility model provides a kind of front view of underwater retaining wall integrated formwork.
[0015] Figure 4 The utility model Figure 3 Sectional view of A-A direction.
[0016] Figure 5 The utility model provides a kind of structure schematic view of positioning frame.
[0017] Reference signs: 1-water-facing plate, 10-through hole, 11-back rib, 110-gap, 12-cross rib, 2-backwater plate, 3-side plate, 31-vertical rib, 32-horizontal rib, 4-cavity, 5-pull screw, 6-locking nut, 7-lifting ring, 8-cross beam, 9-frame, 91-bottom beam, 92-inclined strut beam. DETAILED DESCRIPTION
[0018] The specific embodiment is described below in conjunction with the drawings.
[0019] Embodiment
[0020] As Figures 1-4As shown, in the embodiment, a kind of underwater retaining wall integral pouring formwork is mainly disclosed, applicable to retaining wall underwater concrete construction, especially applicable to gravity wharf, slope wharf etc. the underwater concrete construction of front retaining wall of water depth ≤5m, its main structure includes water board 1, backwater board 2 and the side stand 3 of being set in water board 1 and backwater board 2 two sides, side stand 3 two ends are bolted with water board 1 and backwater board 2 respectively, and it is enclosed to form the cavity 4 for pouring concrete, water board 1 and backwater board 2 are connected with the gap of the pull screw 5, the pull screw 5 is connected with the locking nut 6, and the back rib 11 for abutting the locking nut 6 is arranged on the outer wall of water board 1 and backwater board 2. Specifically, the pouring formwork is enclosed by water board 1, backwater board 2 and two side stands 3. Water board 1 and backwater board 2 are the same structure, and are oppositely arranged;Two side stands 3 are oppositely arranged. Water board 1, backwater board 2 and side stand 3 are all made of 6mm steel plate into base panel, use flat steel as upper and lower edge frame, use angle steel as left and right edge frame, a plurality of bolt holes are formed on the angle steel, and the pouring formwork is detachably assembled by bolting. It should be noted that when the formwork is assembled, the bolt must be tightened to ensure that the formwork is tightly fitted to prevent slurry leakage. If a gap is found between the formwork, it can be sealed with cotton or other materials to ensure the air tightness of the formwork connection. In addition, to improve the rigidity and stability of the formwork, the pull screw 5 and the locking nut 6 are arranged on the back rib 11. The pull screw 5 is made of M25 precision rolled thread steel, which effectively enhances the ability of the formwork to resist the lateral pressure of concrete during pouring, prevents the formwork from deforming, and ensures the pouring quality. After overall assembly onshore, the whole is launched for concrete pouring, solving the problem of underwater retaining wall concrete construction under complex hydrological conditions and special geographical environment.
[0021] Further, in specific implementation, the above-mentioned back rib 11 provided in the embodiment of the utility model is composed of two channel steels arranged back to back, and a gap 110 for passing the pull screw 5 is left between the two channel steels. Specifically, through holes 10 for the pull screw 5 to pass through are correspondingly formed on water board 1 and backwater board 2, the through holes 10 are located between the gap 110 of the two channel steels, the pull screw 5 is threadedly connected with the locking nut 6, and abuts on the two channel steels, so as to realize the pull locking of water board 1 and backwater board 2.
[0022] Further, in specific implementation, the above-mentioned cavity 4 provided in the embodiment of the utility model is a trapezoidal space with small upper part and large lower part. It can provide a larger supporting surface, which helps to resist the impact of water flow on the formwork and reduce the displacement risk of the formwork during pouring.
[0023] Further, in the specific implementation, the outer wall of the above-mentioned side plate 3 is provided with a plurality of vertical ribs 31 at intervals, and a plurality of horizontal ribs 32 are vertically and crossly arranged and welded on the vertical ribs 31. The pressure bearing capacity of the side plate 3 is improved, so that deformation is not easy to occur under stress, thereby ensuring the use safety of the formwork.
[0024] Further, in the specific implementation, the outer wall of the above-mentioned side plate 3 is provided with a plurality of vertical ribs 31 at intervals, and a plurality of horizontal ribs 32 are vertically and crossly arranged and welded on the vertical ribs 31. The pressure bearing capacity of the side plate 3 is improved, so that deformation is not easy to occur under stress, thereby ensuring the use safety of the formwork.
[0025] Further, in the specific implementation, the above-mentioned water-facing plate 1, backwater plate 2 and side plate 3 are provided with lifting rings 7. The lifting during installation and disassembly is facilitated, the convenience and safety of construction are improved, and the work efficiency and safety are improved.
[0026] As shown in Figure 1 , Figure 5 In the embodiment, a positioning frame is also disclosed, which comprises a plurality of frames 9 connected side by side by a cross beam 8, and the frame 9 comprises a bottom beam 91 for supporting the water-facing plate 1 and the backwater plate 2 and an inclined support beam 92 for the water-facing plate 1 and the backwater plate 2 to lean against and position the side plate 3. Specifically, the positioning frame is placed on a flat ground, and the formwork is pre-assembled on the shore through the positioning frame, effectively supporting the water-facing plate 1 and the backwater plate 2, providing a stable platform for positioning of the side plate 3, and ensuring the accuracy of construction. Then, the whole is hoisted and placed in the designed position by means of a crane, and then the sleeve method is used for underwater concrete pouring, without cofferdam throughout, effectively avoiding pollution of water quality during construction, meeting the environmental protection requirements, and being conducive to protection of the water ecological environment. Compared with traditional construction, the cofferdam construction and water pumping and draining processes are omitted, thereby saving labor, materials, equipment and time, etc. in many aspects. Not only the labor input is reduced, but also the material consumption is reduced, the equipment use is simplified and the construction period is shortened, and the construction cost is reduced in multiple dimensions, thereby bringing significant economic benefits to engineering construction.
Claims
1. A monolithic casting formwork for underwater retaining walls, characterized in that, It includes a water-facing plate (1), a water-returning plate (2), and side upright plates (3) set on both sides of the water-facing plate (1) and the water-returning plate (2). The two ends of the side upright plates (3) are bolted to the water-facing plate (1) and the water-returning plate (2) respectively, and together they form a cavity (4) for pouring concrete. A tie rod (5) is passed through and connected between the water-facing plate (1) and the water-returning plate (2). The tie rod (5) is connected with a locking nut (6). The outer walls of the water-facing plate (1) and the water-returning plate (2) are provided with back ribs (11) for abutting against the locking nut (6).
2. The integral casting formwork for an underwater retaining wall according to claim 1, characterized in that, The back rib (11) is composed of two channel steels with their slots facing each other, and a gap (110) is left between the two channel steels for the pull rod (5) to pass through.
3. The integral casting formwork for an underwater retaining wall according to claim 1, characterized in that, The cavity (4) is a trapezoidal space that is smaller at the top and larger at the bottom.
4. The integral casting formwork for an underwater retaining wall according to claim 1, characterized in that, The outer walls of the water-facing plate (1) and the back water-facing plate (2) are provided with several transverse ribs (12) at intervals, and the back ribs (11) are vertically intersected and welded to the several transverse ribs (12).
5. The integral casting formwork for an underwater retaining wall according to claim 1, characterized in that, The outer wall of the side plate (3) is provided with several vertical ribs (31) at intervals, and several horizontal ribs (32) are vertically intersected and welded on the vertical ribs (31).
6. The integral casting formwork for an underwater retaining wall according to claim 1, characterized in that, Lifting rings (7) are provided on the water-facing plate (1), the back water plate (2), and the side upright plate (3).
7. A positioning frame for an integral casting formwork for an underwater retaining wall as described in any one of claims 1-6, characterized in that, It includes several frames (9) connected side by side by crossbeams (8), the frames (9) including bottom beams (91) for supporting the water-facing plate (1) and the back water-facing plate (2) and diagonal bracing beams (92) for the water-facing plate (1) and the back water-facing plate (2) to lean against and position the side upright plate (3) for installation.