Underwater concrete pouring construction platform

Abstract

The utility model provides an underwater concrete pouring construction platform. The underwater concrete pouring construction platform comprises a platform body, a support, a collecting hopper, an inclined chute and a guide pipe assembly. The platform is a water floating platform and is used as a basic platform for construction operation; the support is erected on a platform top, the erecting height of the support is larger than or equal to 6 m, and the space between a suspended area of the support and the platform serves as a personnel construction operation space. The collecting hopper is installed in the center of the support, the guide pipe assemblies are distributed on the periphery of the platform, and the collecting hopper is communicated with the guide pipe assemblies through a plurality of inclined chutes. The underwater concrete pouring construction platform has the convenience of construction operation and concrete feeding.

Description

Technical Field

[0001] The utility model relates to the field of underwater concrete pouring in hydropower stations and navigation-power junctions. Specifically, it relates to an underwater concrete pouring construction platform. Background Art

[0002] During the existing repair of the tail sill of hydropower stations and the treatment of the waterway of navigation-power junctions, due to the differences in underwater concrete pouring terrain, water quality, water depth, pouring parts, and pouring quantities, the operation difficulty of underwater concrete pouring is relatively large.

[0003] Among them, the stability of the construction platform and the convenience of feeding concrete materials are one of the difficulties in underwater concrete pouring.

[0004] However, the existing construction platforms mainly consider the problem of how to transfer concrete. The operation space of technicians is restricted, and there is interference between the required workpieces, resulting in the inability to take both into account.

[0005] In addition, the convenience of underwater concrete pouring is also one of the main problems that need to be emphasized. The current construction platforms have deficiencies in convenience design.

[0006] Therefore, the existing construction platforms cannot combine the functions of construction operation and concrete feeding. It is particularly important to design a construction platform that can facilitate concrete feeding and construction operation. Summary of the Utility Model

[0007] The purpose of the utility model is to overcome the deficiencies of the prior art, and thus provide an underwater concrete pouring construction platform that combines construction operation and the convenience of concrete feeding.

[0008] To achieve the above purpose, the technical solution adopted by the utility model is: an underwater concrete pouring construction platform, including a platform, a bracket, an aggregate hopper, an inclined chute, and a conduit assembly;

[0009] The platform is a floating platform on the water, used as a basic platform for construction operations;

[0010] The bracket is erected on the platform surface. The erection height of the bracket ≥ 6m. The space between the suspended area of the bracket and the platform is used as the operation space for personnel.

[0011] The aggregate hopper is installed at the center of the bracket, and the conduit assemblies are distributed on the periphery of the platform. The aggregate hopper is communicated with each conduit assembly through a plurality of inclined chutes.

[0012] Preferably, the bracket is a steel bracket, including a plurality of legs and a top suspension. A highest point extends upward from the center of the top suspension, and the aggregate hopper is installed at the highest point of the top suspension.

[0013] Preferably, the volume of the aggregate hopper ≥ 2.5 m 3 .

[0014] Preferably, the number of rows of the conduit assemblies arranged along the water flow direction is greater than the number of rows arranged perpendicular to the water flow direction.

[0015] Preferably, the spacing between the conduit assemblies arranged along the water flow direction ≥ 6 m.

[0016] Preferably, the spacing between the conduit assemblies arranged perpendicular to the water flow direction ≥ 9 m.

[0017] Preferably, the conduit assembly includes a loading hopper, a conduit and a water-proof ball. The loading hopper is located at the top of the conduit and is used to connect to the inclined chute. The water-proof ball is installed at the outlet of the conduit and is controlled by a lifting wire for water-proofing.

[0018] Preferably, a chain block mechanism is provided on the bracket, and the chain block mechanism is used to lift the height of the conduit.

[0019] Preferably, the platform is a barge with a load capacity of at least 300 T.

[0020] Preferably, the conduit assemblies are installed on both sides of the barge, and three sets of conduit assemblies are installed on each side.

[0021] The utility model has substantial features and progress compared with the prior art. Specifically, the utility model suspends and moves up the concrete guiding mechanisms such as the aggregate hopper, the chute, and the conduit assembly through the bracket, leaving an operating space for the staff at the bottom, and taking into account the common convenience of concrete guiding and operator construction.

[0022] Furthermore, the guiding of the material adopts the method of placing the aggregate hopper in the middle, placing the conduit assembly beside, and connecting them through an inclined chute to ensure the convenience of concrete pouring. Description of the Drawings

[0023] Figure 1 is the elevation view of the underwater concrete pouring construction platform in the utility model.

[0024] Figure 2 is the plan view of the underwater concrete pouring construction platform in the utility model.

[0025] In the figure: 1. Platform; 2. Bracket; 3. Aggregate hopper; 4. Inclined chute; 5. Conduit assembly; 6. Chain block mechanism; 51. Loading hopper; 52. Conduit. Detailed Embodiments

[0026] The following further describes the technical solutions of the utility model in detail through specific embodiments.

[0027] Such as Figure 1 and Figure 2As shown in the figure, an underwater concrete pouring construction platform includes a platform 1, a support 2, an aggregate hopper 3, an inclined chute 4, and a conduit assembly 5.

[0028] The platform 1 is a floating platform on the water and is used as the basic platform for construction operations. In this embodiment, a barge with a load capacity of at least 300T is used.

[0029] The support 2 is erected on the surface of the platform 1. The erection height of the support 2 is ≥6m. The space between the suspended area of the support 2 and the platform is used as the construction operation space for personnel. In this embodiment, the support is a steel support, including several legs and a top suspension. A highest point extends upward from the center of the top suspension. The aggregate hopper 3 is installed at the highest point of the top suspension. In this embodiment, the volume of the aggregate hopper 3 is ≥2.5m 3 , so as to be able to hold enough concrete slurry and conduct feeding to different conduits synchronously. The materials in the aggregate hopper 3 are pumped by a side-placed concrete pump.

[0030] The conduit assemblies 5 are distributed on the outer periphery of the platform 1. The aggregate hopper 3 is connected to each conduit assembly 5 through several inclined chutes 4. In this embodiment, the number of columns of the conduit assemblies 5 arranged along the water flow direction is greater than the number of columns arranged perpendicular to the water flow direction. The spacing between the conduit assemblies arranged along the water flow direction is ≥6m, and the spacing between the conduit assemblies arranged perpendicular to the water flow direction is ≥9m. Taking this embodiment as an example, the conduit assemblies are installed on both sides of the barge, and three conduit assemblies are installed on each side.

[0031] The conduit assembly 5 includes a loading hopper 51, a conduit 52, and a water-stop ball (not shown). The loading hopper 51 is located at the top of the conduit 52 and is used to connect to the inclined chute 3. The water-stop ball is installed at the outlet of the conduit 52 and is controlled by a lifting wire for water isolation.

[0032] A chain block mechanism 6 is arranged on the support 2. The chain block mechanism 6 is used to lift the height of the conduit 52. In this embodiment, the chain block mechanism uses a manual hoist.

[0033] Description of the working principle of construction operations:

[0034] Drive the barge above the water surface to be poured, send the concrete into the pouring bin through the conduit 52, place the conduit opening as close as possible to the pouring bottom surface, and try to place it in the low-lying area of the foundation.

[0035] For the layout of the underwater concrete conduits on the plane, weld three conduit supports at the ship's edge to fix three conduits. The spacing perpendicular to the water flow direction is 6.5m, and the spacing along the water flow direction is 9m. The conduits are positioned as the ship moves, and the pouring is carried out layer by layer and block by block from downstream to upstream.

[0036] During the specific construction, the first-poured concrete is separated from water by a water-stop ball. The first-poured concrete immediately buries the outlet of the conduit, forming an isolation layer. The new concrete enters through the outlet of the conduit to the bottom of the first-poured concrete (serving as a water-isolation layer). The newly poured concrete supports the first-poured concrete to rise and expand to the surrounding areas, thus avoiding the contact between the newly poured concrete and water.

[0037] The technical principle of underwater concrete placement is to achieve water isolation through the cooperation of a water-stop ball and the previously poured concrete, which belongs to the scope of existing technologies and will not be analyzed in more depth.

[0038] This solution was experimentally verified during the underwater concrete placement construction of the Dam Risk Elimination Project of Dadingshan Navigation-Power Junction. When used in combination with underwater permeable formwork, it has good convenience.

[0039] Finally, it should be noted that: the above has described in detail the preferred embodiments of this patent. However, this patent is not limited to the above embodiments. Within the knowledge scope of ordinary technicians in the art, various changes can be made without departing from the gist of this patent.

Claims

1. An underwater concrete pouring construction platform, characterized in that: Includes platform, bracket, aggregate hopper, chute and conduit assembly; The platform is a floating platform on water, used as a basic platform for construction operations; The bracket is installed on the platform surface, the installation height of the bracket is ≥6m, and the space between the suspended area of ​​the bracket and the platform is used as a construction work space for personnel; The collecting hopper is installed at the center of the bracket, the conduit components are distributed on the periphery of the platform, and the collecting hopper is connected with each conduit component through a plurality of inclined chutes.

2. The underwater concrete pouring construction platform according to claim 1 is characterized in that: The support is a steel support, comprising a plurality of legs and a top suspension, the center of the top suspension extending upward to form a highest point, and the collecting hopper is installed at the highest point of the top suspension.

3. The underwater concrete pouring construction platform according to claim 2 is characterized in that: The volume of the aggregate hopper is ≥2.5m 3 .

4. The underwater concrete pouring construction platform according to claim 3 is characterized by: The number of rows of the conduit components arranged along the water flow direction is greater than the number of rows arranged perpendicular to the water flow direction.

5. The underwater concrete pouring construction platform according to claim 4 is characterized in that: The spacing between the conduit components arranged along the water flow direction is ≥6m.

6. The underwater concrete pouring construction platform according to claim 5, characterized in that: The spacing between conduit assemblies arranged perpendicular to the water flow direction is ≥9m.

7. The underwater concrete pouring construction platform according to claim 6, characterized in that: The conduit assembly includes a charging hopper, a conduit and a water-blocking ball. The charging hopper is located at the top of the conduit and is used for docking with the inclined chute. The water-blocking ball is installed at the outlet of the conduit and is controlled by a lifting wire for water blocking.

8. The underwater concrete pouring construction platform according to claim 1, characterized in that: A chain fall mechanism is arranged on the bracket, and the chain fall mechanism is used to increase the height of the catheter.

9. The underwater concrete pouring construction platform according to claim 1, characterized in that: The platform is a barge with a load capacity of at least 300 tons.

10. The underwater concrete pouring construction platform according to claim 9, characterized in that: The duct assemblies are installed on both sides of the barge, with three sets of duct assemblies installed on each side.

Images