A temporary underwater support construction device suitable for inland rivers

Abstract

This invention discloses a temporary underwater support construction device suitable for inland rivers, comprising a construction platform on the water, on which a detachable floating crane or a detachable pile driver can be installed. The floating crane includes a rotatable support frame, a rear anchor reaction frame, a first winch, and a second winch mounted on the construction platform. The wire rope of the first winch is configured with a first pulley group set at the top of the rotatable support frame and a second pulley group connected to the rear anchor reaction frame. The wire rope of the second winch is configured with a third pulley group set at the top of the rotatable support frame. The detachable pile driver includes a column mounted on the construction platform, a landing gear mounted on the column, a pile hammer that can slide up and down mounted on the landing gear, a power drive device matching the pile hammer, and diagonal braces for supporting the column. The device of this invention is used when navigation is impossible and large water equipment cannot enter the site, in order to carry out the construction of temporary jacking supports in the water. It can simultaneously meet the needs of two working conditions: driving steel pipe piles in the water and hoisting temporary support components. This saves the cost of construction equipment entering and leaving the site, as well as the material cost and labor cost of temporary tools.

Description

Technical Field

[0001] This invention relates to the field of bridge construction, and more particularly to a temporary underwater support construction device suitable for inland rivers. Background Technology

[0002] With the accelerating pace of urbanization, there is a growing need to build bridges across inland rivers. However, the lack of navigable inland waterways prevents large-scale waterborne equipment from accessing the sites, necessitating the construction of temporary underwater scaffolding. Traditional construction equipment for these temporary underwater scaffolding supports requires both pile drivers and cranes. When floating cranes and underwater pile drivers are unavailable, a construction access road extending from the land is typically erected, with a construction platform built at the construction site. The crane and pile driver then use this access road to reach the platform for the underwater temporary scaffolding support construction. Due to the locational relationship between the temporary construction platform and the construction area, it is difficult for construction machinery to achieve optimal positioning, resulting in deviations in the temporary scaffolding support's location and affecting construction quality. Furthermore, this construction method consumes a significant amount of temporary materials and manpower. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a temporary support construction device suitable for inland waterways that can meet the requirements of driving steel pipe piles and hoisting temporary support components in inland waterways, in order to overcome the shortcomings of the prior art.

[0004] The technical solution adopted in this invention is as follows: a temporary underwater support construction device suitable for inland rivers, characterized in that: it includes a construction platform on the water, on which a detachable floating crane or a detachable pile driver can be installed. The floating crane includes a rotatable support frame, a rear anchor reaction frame, a first winch, and a second winch installed on the construction platform. The wire rope of the first winch is configured with a first pulley group set at the top of the rotatable support frame and a second pulley group connected to the rear anchor reaction frame. The wire rope of the second winch is configured with a third pulley group set at the top of the rotatable support frame. The detachable pile driver includes a column installed on the construction platform on the water, a landing gear mounted on the column, a pile hammer that can slide up and down mounted on the landing gear, a power drive device matching the pile hammer, and diagonal bracing for supporting the column.

[0005] According to the above technical solution, a detachable front anchor frame is installed on the water construction platform. The support frame and the anchor frame are hinged together to form a rotatable support frame.

[0006] According to the above technical solution, the support frame includes two symmetrically arranged derricks and a base plate connected to the bottom of the derricks. The two derricks and the base plate form an isosceles triangle structure. The bottom of the two derricks are respectively hinged to a detachable front anchoring frame. A top anchoring device is provided at the top of the two derricks. A first pulley group and a third pulley group are respectively arranged on the top anchoring device.

[0007] According to the above technical solution, multiple sets of support and reinforcement structures are set between the two derricks.

[0008] According to the above technical solution, by controlling the wire ropes of the first and second winches, the support frame is set at an angle of 50 to 70 degrees with the water construction platform.

[0009] According to the above technical solution, the waterborne construction platform includes a floating raft, a pontoon mounted on the floating raft, and a counterweight. The pontoon is connected to the floating raft via a connector, and the support frame or column is mounted on the pontoon.

[0010] According to the above technical solution, the float includes multiple circular tubes connected in sequence, and the circular tubes are connected to each other by reinforcing ribs.

[0011] According to the above technical solution, the floating box includes a bottom plate, a cover plate, a surrounding plate, and supporting reinforcing ribs.

[0012] The beneficial effects achieved by this invention are as follows:

[0013] 1. The device of the present invention is used when navigation is not possible and large water equipment cannot enter the site. In order to carry out the construction of temporary jacking supports in the water, it can simultaneously meet the needs of two working conditions: driving steel pipe piles in the water and hoisting temporary support components. This saves the cost of construction equipment entering and leaving the site, as well as the material cost and labor cost of temporary tools.

[0014] 2. The floating crane and pile driver components of the present invention can be connected by reserving connection interfaces and support system and anchoring system connection interfaces on the construction foundation platform and then bolting them together. This allows the present invention to achieve modular assembly, rapid transportation, disassembly and functional conversion, and further improves construction efficiency. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present invention when used as a floating crane.

[0016] Figure 2 for Figure 1 The left view.

[0017] Figure 3 This is a structural diagram of the present invention when used as a pile driver.

[0018] Figure 4 for Figure 3 The left view. Detailed Implementation

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] like Figure 1 , 2 As shown, this embodiment provides a temporary underwater support construction device suitable for inland rivers, including a waterborne construction platform. A detachable floating crane or a detachable pile driver is installed on the waterborne construction platform. By changing the upper structure of the waterborne construction platform, the present invention can quickly realize the functional conversion between the floating crane and the pile driver.

[0021] The floating construction platform includes a floating raft 5, pontoons mounted on the raft 5, and counterweights. The pontoons are connected to the raft via connectors 7. The raft 5, pontoons, and connectors 7 act as a hull similar to a floating crane, serving as the base foundation. The raft 5 is placed on the water surface, using its own buoyancy to support the entire floating crane. The pontoons 6 are placed on the raft 5 and reinforced by a connection structure between the raft and the pontoons. The floating crane system is placed on the pontoons 6, serving as the base foundation for the floating crane. Specifically, the entire raft 5 consists of 6 pontoons. Each pontoon is 20m long, 1.5m in diameter, and 8mm thick, with 1cm steel plates sealing both ends. Connecting steel sections connect the pontoons. The pontoons include a bottom plate, a cover plate, a surrounding plate, and supporting reinforcing channel steel. The bottom plate, cover plate, surrounding plate, and supporting reinforcing channel steel form a box structure, and the pontoons serve as the support base for the floating crane.

[0022] In this embodiment, the floating crane includes a rotatable support frame 1, a rear anchor reaction frame 4, a first winch 8, a second winch 23, a generator 10, and a distribution box 11, all mounted on a construction platform on the water. The wire rope 9 of the first winch 8 is connected to a second pulley group 15 on the rear anchor reaction frame via a first pulley group 17 located at the top of the rotatable support frame 1. The wire rope 14 of the second winch 23 is connected to a third pulley group 13 located at the top of the rotatable support frame. The construction platform on the water serves as the foundation of the floating crane, the floating crane itself is the executing component, the first winch 8, the second winch 23, the generator 10, and the distribution box 11 constitute the power system of the floating crane, and the rear anchor reaction frame 4 and the pulley groups constitute the force transmission system for the floating crane. The force exerted by the floating crane when lifting heavy objects is transmitted through the wire rope support system, via the top of the rotatable support frame 1, to the detachable front anchor frame 3, and then through the pulley groups to the rear anchor reaction frame 4.

[0023] Specifically, a detachable front anchoring frame 3 is installed on the water construction platform. The detachable front anchoring frame 3 is fixed to the water construction platform with bolts, forming a detachable structure. The support frame 1 is hinged to the anchoring frame, forming a rotatable support frame. Specifically, the support frame includes two symmetrically arranged derricks (102, 103) and a base plate 105 connected to the bottom of the derricks. The two derricks and the base plate 105 form an isosceles triangle structure. The bottom of the two derricks is hinged to the detachable front anchoring frame 3, and a top anchoring device 101 is provided at the top of the two derricks. A first pulley block 17 and a third pulley block 13 are respectively arranged on the top anchoring device 101. Specifically, the wire rope is wound as follows: the wire rope 9 of the first winch 8 passes through the first pulley block 17, then through the second pulley block 15, and finally is fixed to the first pulley block 17.

[0024] The rotatable support frame and the wire rope system form a variable amplitude structure. During installation, in order to quickly determine the distance D between the rear anchor reaction frame and the rotatable support frame, if the wire rope and winch are disregarded, and the effects of wind load and waves are not considered, the following method for quick determination is designed:

[0025] D=((G0+G3)*L*COSφ+G2*L / 2*COSφ)*k / (G1+G4)

[0026] Where: L—length of the rotatable support frame; D—distance between the rear anchor reaction frame and the rotatable support frame; φ—deflection angle; used to meet the force requirements; G0—weight of the suspended object; G1—counterweight; G2—weight of the rotatable support frame; G3—weight of the front anchor; G4—weight of the rear anchor; K is 1.5.

[0027] After quickly determining the distance D between the rear anchor reaction frame and the rotatable support frame, the wire ropes of the first winch 8 and the second winch 23 are controlled to ensure that the support frame is set at a variable angle of 50° to 70° with the water construction platform during operation. This structural design not only meets the requirement of a rated lifting capacity of 8t, but also features a simple structure, few components, and convenient and quick assembly.

[0028] To further improve the stability of the floating crane, multiple sets of support and reinforcement structures 104 are installed between the two booms. The reinforcement structures can be designed differently according to the width between the two booms. The structure can be as shown in the figure or designed into other structural forms.

[0029] In this embodiment, the detachable pile driver includes a column 18 installed on a water construction platform, a landing gear 21 installed on the column, a pile hammer 22 that can slide up and down installed on the landing gear, a power driving device matching the pile hammer, inclined braces 19, 20 for supporting the column, a generator 10, and a distribution box 11. The inclined braces 19, 20 are manufactured in segments, and the two are combined into a support rod for supporting the column, and the column serves as the carrier of the pile hammer of the pile driver. The landing gear 21 and its supporting driving device.

[0030] It can lift the pile hammer and the lifting piston and provide kinetic energy for the pile hammer, and carry out pile foundation construction by driving the pile hammer. The bottom of the column 18 is fixed to the floating box by bolts, and the bottom of the inclined brace 20 is connected to the floating box.

[0031] The device of the present invention is used in situations where navigation is impossible and large water equipment cannot enter the site. In order to construct a temporary jacking support in water, it can simultaneously meet the requirements of driving steel pipe piles in water and hoisting temporary support components, thus saving the costs of construction equipment entering and leaving the site, the material costs of temporary work tools, and the labor costs.

[0032] By reserving connection interfaces, a support system, and an anchoring system connection interface on the construction foundation platform, and then connecting them by bolting, the floating crane and pile driver assembly of the present invention can also achieve modular assembly, quickly carry out transportation transfer, installation and disassembly, and function conversion, further improving the construction efficiency.

Claims

1. A temporary underwater support construction device suitable for inland rivers, characterized in that: It includes a water construction platform, on which a detachable floating crane or a detachable pile driver is installed. The floating crane includes a rotatable support frame installed on the water construction platform, a rear anchor reaction frame, a first winch, and a second winch. The steel wire rope of the first winch is configured with a second pulley block connected to the rear anchor reaction frame through a first pulley block arranged at the top of the rotatable support frame. The steel wire rope of the second winch is configured with a third pulley block arranged at the top of the rotatable support frame. The detachable pile driver includes a column installed on the water construction platform, a landing gear installed on the column, a pile hammer that can slide up and down installed on the landing gear, a power drive device matching the pile hammer, and a diagonal brace for supporting the column. A detachable front anchor frame is installed on the water construction platform. The support frame and the anchor frame are hinged to form a rotatable support frame. The support frame includes two symmetrically arranged derricks and a bottom plate connected to the bottom of the derricks. The two derricks and the bottom plate enclose an isosceles triangle structure. The bottoms of the two derricks are respectively hinged to the detachable front anchor frame. A top anchor device is provided at the tops of the two derricks. A first pulley block and a third pulley block are respectively configured on the top anchor device. The detachable front anchor frame is fixed on the water construction platform by bolts to form a detachable structure. The bottom of the column is fixed on a floating box by bolts. The bottom of the diagonal brace is connected to the floating box.

2. The temporary underwater support construction device for inland rivers according to claim 1, characterized in that: Multiple groups of support and strengthening structures are provided between the two derricks.

3. The temporary underwater support construction device for inland rivers according to claim 1, characterized in that: By controlling the steel wire ropes of the first winch and the second winch, the support frame is set at an angle of 50 - 70° with the water construction platform.

4. The temporary underwater support construction device for inland rivers according to claim 1, characterized in that: The water construction platform includes a floating raft, floating boxes installed on the floating raft, and counterweights. The floating boxes and the floating raft are connected by connectors. The support frame or the column is installed on the floating box.

5. The temporary underwater support construction device for inland rivers according to claim 4, characterized in that: The floating raft includes multiple sequentially connected round tubes, and the round tubes are connected by reinforcing ribs.

6. The temporary underwater support construction device for inland rivers according to claim 4, characterized in that: The floating box includes a bottom plate, a cover plate, a surrounding plate, and support reinforcing ribs.

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