Large steel open caisson long-distance floating transportation floating assisting device based on matts

Abstract

The utility model provides a large-scale steel open caisson long-distance floating transportation and floating-assisting device based on matts, which belongs to the field of steel open caisson floating transportation devices and comprises a steel open caisson, the steel open caisson is of a cuboid structure, partition walls are arranged to divide the interior of the steel open caisson into matts, floating-assisting plate devices are arranged at the bottoms of the matts, and the floating-assisting plate devices are detachably arranged in a sealed mode. The floating-assisting plate device and the bottom of the open caisson wall plate are horizontally arranged, or the floating-assisting plate device is lower than the bottom of the open caisson wall plate, and the immersion depth of the steel open caisson is reduced. The floating-assisting plate device and the bottom of the open caisson wall plate are horizontally arranged, or the floating-assisting plate device is lower than the bottom of the open caisson wall plate, the immersion depth of the steel open caisson is reduced, and the steel open caisson can be transported out of a dock or a shallow navigation channel point in a floating mode under the condition of a lower water level and smoothly and remotely transported to a preset water area in a floating mode. And an arranged water inlet valve device can carry out automatic water feeding after reaching a designated place, so that the floating-assisting plate device automatically falls off, and the construction is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel sinking well floating device field especially based on the large -scale steel sinking well long -distance floating of square of field helps floating device. BACKGROUND

[0002] With the continuous development of bridge foundation construction technology, bridge engineering construction is increasingly developing in the direction of deep water, large span, and the number of construction of suspension bridges, as a representative of super long span bridges, is increasing. The part of anchor stock of offshore suspension bridge and river-crossing suspension bridge is located in water. The common water anchor stock foundation is sinking well foundation. The sinking well involves the floating and positioning of sinking well steel shell. Therefore, the floating and positioning in such sinking well steel shell construction becomes the focus and difficulty of construction.

[0003] Because most of the sinking well steel shells are heavy, the water depth is deep in the self-floating state, and the requirements for sinking well launching and docking and channel are high. Therefore, in most cases, the sinking well will be assisted to float to offset part of the gravity by buoyancy and maintain the stable floating state of the sinking well steel shell during floating. This prevents the sinking well steel shell from being difficult to float due to excessive self-weight.

[0004] At present, the common sinking well floating structure is to weld a bottom sealing plate at the bottom or top of the well hole, and to realize the water sealing of the well hole by dense welding seam to generate buoyancy during floating. After the sinking well steel shell is floated to the sinking position, the bottom sealing plate welded at the bottom or top of the well hole is usually removed by underwater cutting. The underwater cutting construction of the bottom sealing plate requires special underwater workers, has high requirements for the water quality transparency of the construction water area, and is complex and difficult. Moreover, it is easy to cause damage to the steel sinking well structure and has high construction safety risk. Therefore, it is necessary to design a long-distance floating and floating device for large-scale steel sinking well based on the square of field. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a long-distance floating and floating device for large-scale steel sinking well based on the square of field, which solves the technical problem that the existing steel sinking well structure cannot be transported and cannot pass through the dock and shallow point of the channel.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The long-distance floating and floating device for large-scale steel sinking well based on the square of field comprises a steel sinking well. The steel sinking well is a rectangular structure. A partition wall is arranged to divide the inside of the steel sinking well into a square of field structure. A floating plate device is arranged at the bottom of the square of field structure. The floating plate device is detachably and sealingly arranged. The floating plate device is horizontally arranged at the bottom of the sinking well wall plate, or the floating plate device is lower than the bottom of the sinking well wall plate, so as to reduce the water depth of the steel sinking well and pass through the shallower dock or channel.

[0008] Further, the floating-aid device comprises a main keel and a sealing plate, the main keel is detachably sealed with the inner part of the caisson wall plate, and the sealing plate is sealed with the bottom of the main keel.

[0009] The floating-aid device for long-distance floating of the large steel caisson based on the grid is characterized in that the main keel is connected with the corbel arranged in the inner part of the caisson wall plate through bolts.

[0010] Further, the main keel is arranged as an I-shaped steel, the top of the I-shaped steel is arranged with pressure-bearing rubber and sealing rubber between the I-shaped steel and the corbel, and the pressure-bearing rubber and the sealing rubber are arranged outside the bolts.

[0011] Further, the sealing rubber is arranged outside the pressure-bearing rubber, and the height of the pressure-bearing rubber is higher than that of the sealing rubber.

[0012] Further, the caisson wall plate and the floating-aid device are both arranged with water inlet valve devices, the water inlet valve devices are arranged to communicate the inside of the steel caisson with the outside, the water inlet valve device comprises an external water inlet pipe, a water inlet valve and an internal water inlet pipe, the outside of the external water inlet pipe is arranged horizontally with the outside of the caisson wall plate and the bottom of the floating-aid device, the inner end of the external water inlet pipe is connected with the water inlet valve, the lower end of the internal water inlet pipe is connected with the water inlet valve, and the internal water inlet pipe is arranged as a curved structure.

[0013] Further, the floating-aid device is arranged with a GPS positioning device, the last position of the floating-aid device is determined through the GPS positioning device, and the floating-aid device is convenient to salvage.

[0014] The utility model discloses a floating-aid device for long-distance floating of large steel caisson based on grid, which comprises a caisson wall plate, a floating-aid device and a water inlet valve device.

[0015] The utility model discloses a floating-aid device for long-distance floating of large steel caisson based on grid, which comprises a caisson wall plate, a floating-aid device and a water inlet valve device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the steel caisson well hole arrangement structure schematic diagram of the utility model;

[0017] Fig. 2 It is the internal structure schematic diagram of the floating-aid device of the utility model;

[0018] Fig. 3 It is the main keel arrangement structure schematic diagram of the utility model.

[0019] In the drawings, 1 is caisson wall plate, 2 is corbel, 3 is bolt, 4 is main keel, 5 is sealing plate, 6 is pressure-bearing rubber, 7 is sealing rubber. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of this utility model, and these aspects can be achieved even without these specific details.

[0021] like Figs. 1-3 As shown, a long-distance floating and buoyancy aid device for a large steel caisson based on a grid pattern includes a steel caisson, which is a cuboid structure. A partition wall is installed to divide the interior of the steel caisson into a grid structure. The feature is that a buoyancy aid device is installed at the bottom of the grid structure. The buoyancy aid device is detachably and sealed. The buoyancy aid device is horizontally positioned with the bottom of the caisson wall panel 1, or the buoyancy aid device is lower than the bottom of the caisson wall panel 1, thereby reducing the draft of the steel caisson and allowing it to pass through shallower docks or waterways.

[0022] In this embodiment of the invention, the buoyancy aid device includes a main keel 4 and a sealing plate 5. The main keel 4 is detachably sealed to the interior of the caisson wall panel 1, and the sealing plate 5 is sealed to the bottom of the main keel 4.

[0023] In this embodiment of the invention, the main keel 4 is connected to the bracket 2 inside the caisson wall panel 1 by bolts 3. The main keel 4 is an I-beam, and a pressure-bearing rubber 6 and a sealing rubber 7 are provided between the top of the I-beam and the bracket 2. The pressure-bearing rubber 6 and the sealing rubber 7 are located on the outside of the bolts 3. The sealing rubber 7 is located on the outside of the pressure-bearing rubber 6, and the thickness of the pressure-bearing rubber 6 is thinner than the thickness of the sealing rubber 7.

[0024] In this embodiment of the invention, both the caisson wall panel 1 and the buoyancy aid device are equipped with a water inlet valve device. The water inlet valve device connects the interior and exterior of the steel caisson. The water inlet valve device includes an external water inlet pipe, a water inlet valve, and an internal water inlet pipe. The exterior of the external water inlet pipe is flush with the exterior of the caisson wall panel 1 and the bottom of the buoyancy aid device. The inner end of the external water inlet pipe is connected to the water inlet valve, and the lower end of the internal water inlet pipe is connected to the water inlet valve. The internal water inlet pipe is configured as a curved structure.

[0025] In this embodiment of the invention, a GPS positioning device is provided on the buoyancy aid device to determine the final position of the buoyancy aid device, which facilitates retrieval.

[0026] The main keel is a lattice frame welded by I-shaped steel, and the size is 50mm smaller than the bottom plate of the steel caisson partition wall on each side, mainly to automatically separate from the steel caisson when the steel caisson sinks; the sealing plate is 8mm steel plate, fully welded on the main keel profile steel, and the welding position needs to ensure water tightness; the bracket is fusion welded with the wall plate of the steel caisson partition wall, which plays a supporting and floating plate role, and the main keel flange and bracket bottom plate are provided with bolt holes; after the completion of the floating plate, 10mm thick pressure rubber is pasted on the outermost circle, and 50mm sealing rubber is pasted close to the inner side of the pressure rubber; the pressure rubber has small deformation under pressure and can withstand 20m water pressure; the sealing rubber has good elasticity and can be gradually compressed with the increase of pressure until the thickness is the same as that of the pressure rubber; the inner side of the sealing rubber is welded with a 6mm stop block to prevent the rubber from being extruded under pressure; the water inlet valve is installed on the floating plate sealing plate and can connect the inside and outside of the floating plate; the same diameter steel pipes are arranged on the two sides of the water inlet valve, and the upper side is provided with a bend to control the water flow direction after the valve is opened, preventing the water pressure from being too large to hurt people; after installation, the floating plate and the bracket are fixed by high-strength bolts, and the bolts are tightened to achieve water tightness between the floating plate and the bracket bottom plate; after the floating plate is subjected to buoyancy, the sealing rubber is further compressed, and at this time the high-strength bolt only plays a limiting role; the GPS positioning device is fixed on the floating plate, and the floating plate is salvaged according to the GPS positioning signal after falling off.

[0027] The water injection process: after the installation of the floating plate is completed, a reverse pressure test is performed, that is, water is injected into the floating plate to check the water tightness of the floating plate. After the water tightness is qualified, it is marked as qualified. After the steel caisson is completely assembled, a positive pressure test of the floating plate is performed, that is, water is injected into the dock to a position 500mm below the floating water level of the steel caisson (at this time, the water level is above the floating plate), and the leakage of the floating plate is checked. If there is no water leakage, the test is qualified.

[0028] The floating process: after the steel caisson is floated out of the dock and successfully passes through the shallow point of the channel, the bolts on the floating plate are removed (since the bolt holes are inside the profile flange, the bolt holes will not leak), the water inlet valve on the floating plate is opened, the inside and outside of the floating plate are connected, and the seawater enters the well hole through the water valve. When the water levels inside and outside are consistent, the floating plate automatically falls off and falls into the sea. The coordinates of the floating plate are recorded, and the positioning information fixed on the floating plate is compared, which facilitates the salvage of the floating plate after the sinking of the steel caisson is completed.

[0029] Comparative Example 1

[0030] The Chinese patent with publication number CN 118087577 A discloses a steel caisson floating and transporting system and construction method. The bottom plate of the scheme is higher than the bottom of the caisson wall plate 1, which makes the caisson wall plate 1 easily stuck to the bottom during operation, so that it cannot pass through shallower water areas.

[0031] The remaining matters of the utility model are known technologies.

[0032] The above merely is preferred implementation manner of the present application, it should be pointed out, for ordinary skilled person in the technical field, on the premise of not departing from the principle of the present application, can also make several improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the present application.

Claims

1. A large steel caisson based on a grid of fields, comprising a steel caisson, the steel caisson is a cuboid structure, a partition wall is arranged to separate the steel caisson into a grid of fields, characterized in that: The bottom of the field grid structure is provided with a floating plate device, the floating plate device is detachably and sealingly arranged, the floating plate device is arranged horizontally at the bottom of the caisson wall plate (1), or the floating plate device is lower than the bottom of the caisson wall plate (1), the water depth of the steel caisson is reduced, and a shallower dock or channel can be used.

2. The large-scale steel caisson floating-aid device based on a grid pattern according to claim 1, characterized in that: The floating plate device comprises a main keel (4) and a sealing plate (5), the main keel (4) is detachably and sealingly arranged in the caisson wall plate (1), and the sealing plate (5) is sealingly arranged at the bottom of the main keel (4).

3. The large steel caisson floating-aid device based on the grid according to claim 2, characterized in that: The main keel (4) is connected with the bracket (2) arranged in the caisson wall plate (1) through bolts (3).

4. The large steel caisson floating-aid device based on the grid according to claim 2, characterized in that: The main keel (4) is arranged in the form of an I-shaped steel, pressure rubber (6) and sealing rubber (7) are arranged between the top of the I-shaped steel and the bracket (2), and the pressure rubber (6) and the sealing rubber (7) are arranged outside the bolts (3).

5. The large steel caisson floating-aid device based on the grid according to claim 4, characterized in that: The sealing rubber (7) is arranged outside the pressure rubber (6), and the thickness of the pressure rubber (6) is smaller than that of the sealing rubber (7).

6. The large steel caisson floating-aid device based on a grid according to claim 1, characterized in that: The caisson wall plate (1) and the floating plate device are both provided with water inlet valve devices, the water inlet valve devices communicate the inside of the steel caisson with the outside, the water inlet valve devices comprise an external water inlet pipe, a water inlet valve and an internal water inlet pipe, the outside of the external water inlet pipe is arranged horizontally at the outside of the caisson wall plate (1) and the bottom of the floating plate device, the inner end of the external water inlet pipe is connected with the water inlet valve, the lower end of the internal water inlet pipe is connected with the water inlet valve, and the internal water inlet pipe is arranged in a bent structure.

7. The large steel caisson floating-aid device based on a grid according to claim 1, characterized in that: The floating plate device is provided with a GPS positioning device, the final position of the floating plate device is determined through the GPS positioning device, and salvage is facilitated.

Images