Hoop type drilling platform for offshore steel pipe composite pile

Abstract

The utility model discloses an offshore steel pipe composite pile hoop type drilling platform which is composed of a hoop structure, a distribution beam, a bailey beam, a profile steel panel and a limiting plate, the hoop structure is composed of two hoop bodies, and each hoop body is composed of a semicircular hoop panel, a flange plate, a stiffening plate and a split bolt. The two hoop bodies are fixed to the side wall of the steel pipe composite pile through split bolts, and the dead weight of a drilling platform and the drilling construction load are borne through static friction force between the two semicircular hoop panels and the steel pipe composite pile. Investment and construction of the steel pipe piles and connecting systems are reduced, turnover efficiency of the drilling platform is improved, the drilling platform has the advantages of shortening construction period of the drilling piles in a guarantee project, reducing construction cost, being safe and reliable, convenient to assemble, disassemble and construct and the like, and solves the problems that the steel pipe piles with complex marine geology and large seabed covering layer change are difficult to insert, drive and pull out. The device can be used under the conditions of complex marine geology and large seabed covering layer change.

Description

Technical Field

[0001] The utility model relates to a bridge construction facility, in particular to an offshore steel pipe composite pile hoop type drilling platform. Background Art

[0002] With the rapid economic and social development of my country, bridge construction is changing with each passing day. More and more bridges are being built in areas with harsh natural conditions and complex geological conditions, such as oceans and rivers. In the design of offshore bridges, steel pipe composite pile foundations are widely used.

[0003] As a temporary facility for the construction of steel pipe composite pile foundations, the drilling platform's main function is to be a temporary working platform set up at the pile position to eliminate the influence of water flow, tides, waves and scouring when constructing steel pipe composite pile foundations in deep water.

[0004] Typically, drilling platforms utilize a steel pipe driven pile foundation + Bailey beam main beam + bridge deck structure. Drilling platform construction requires driving steel pipe piles offshore, which is affected by the complex and changeable climatic and geological conditions at sea. Consequently, the construction period and cost are long, and work efficiency is low. Summary of the Invention

[0005] The purpose of the utility model is to provide an offshore steel pipe composite pile clamp type drilling platform with a simple structure, safety, reliability and convenient construction under complex marine geology and large changes in seabed cover. It is supported on the main steel pipe composite pile by a clamp structure, which reduces the investment and construction of steel pipe piles and connection systems, has high platform turnover efficiency, saves construction costs and shortens construction period.

[0006] The purpose of this utility model is achieved in this way:

[0007] An offshore steel pipe composite pile clamp-type drilling platform is characterized in that it consists of a clamp structure, a distribution beam, a Bailey beam, a steel panel, and a limit plate, wherein: a clamp structure is fixed to the upper outer wall of each composite steel pipe pile, and the static friction between the clamp structure and the steel pipe composite pile is used to bear the upper load; two distribution beams are symmetrically installed on the top of each clamp structure through bolt connection, and the Bailey beam is installed on the distribution beam on the adjacent steel pipe composite pile, and the steel panel is laid on the top of the Bailey beam; a limit plate for supporting the clamp structure is fixed on the upper outer wall of each composite steel pipe pile and at the bottom of the clamp structure, and the limit plate provides a reference elevation for the clamp structure.

[0008] Furthermore, the hoop structure consists of two hoop bodies, each of which consists of a semicircular hoop panel, a flange plate, a stiffening plate and tension bolts. A stiffening plate is provided at each end of each semicircular hoop panel, a flange plate is provided on the outward side wall of each stiffening plate, and two side-by-side tension bolt holes for tension bolts to pass through are provided on each flange plate. The two hoop bodies are closed from both sides of the steel pipe composite pile to the middle, and the tension bolts pass through the tension bolt holes on the flange plates of the two hoop bodies, closing the two semicircular hoop panels and tightly fixing them on the side walls of the steel pipe composite pile, and bearing the upper load by the static friction between the two semicircular hoop panels and the steel pipe composite pile; a distribution beam is installed on the two stiffening plates on one side of the steel pipe composite pile by bolt connection.

[0009] Furthermore, the limiting plate is made of 200mm×150mm steel plate and welded to the steel pipe composite pile.

[0010] The utility model is composed of a hoop structure, a distribution beam, a Bailey beam, a steel panel, and a limit plate, wherein the hoop structure is composed of two hoop bodies, each of which is composed of a semicircular hoop panel, a flange plate, a stiffening plate and tension bolts. The two hoop bodies in the hoop structure are fixed to the side walls of the steel pipe composite pile by the tension bolts, and the static friction between the two semicircular hoop panels and the steel pipe composite pile is used to bear the deadweight of the drilling platform and the drilling construction load.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model is supported on the side wall of the steel pipe composite pile by a hoop structure, which reduces the investment and construction of the steel pipe pile and the connection system, improves the turnover efficiency of the drilling platform, and has the advantages of shortening the construction period of the bored pile of the guarantee project, reducing the construction cost, simple structure, safety and reliability, reasonable force, and convenient installation and construction. It solves the problems of difficulty in inserting and removing steel pipe piles in complex marine geology and large changes in seabed cover, and can be used in conditions of complex marine geology and large changes in seabed cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the elevation layout of the utility model;

[0014] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0015] Figure 3 for Figure 1 Schematic diagram of the connection between the central distribution beam and the hoop structure;

[0016] Figure 4 for Figure 1 A three-dimensional diagram of the middle hoop structure;

[0017] Figure 5 for Figure 1 A top view of the middle hoop structure;

[0018] Figure 6 for Figure 1 Schematic diagram of the flange plate of the middle hoop structure;

[0019] In the figure: 1-steel pipe composite pile; 2-hoop structure; 3-distribution beam; 4-Bailey beam; 5-steel panel; 6-semicircular hoop panel; 7-flange plate; 8-stiffening plate; 9-tension bolt; 10-limiting plate; 11-tension bolt hole. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] An offshore steel pipe composite pile hoop-type drilling platform consists of a hoop structure 2, a distribution beam 3, a Bailey beam 4, a steel panel 5, and a limit plate 10, wherein: a hoop structure 2 is fixed on the upper outer wall of each composite steel pipe pile 1, and the static friction between the hoop structure 2 and the steel pipe composite pile 1 is used to bear the upper load; two distribution beams 3 are symmetrically installed on the top of each hoop structure 2 through bolt connection, and a Bailey beam 4 is installed on the distribution beam 3 on the adjacent steel pipe composite pile 1, and a steel panel 5 is laid on the top of the Bailey beam 4; a limit plate 10 is fixed on the upper outer wall of each composite steel pipe pile 1 and at the bottom of the hoop structure 2 to support the hoop structure 2, and the limit plate 10 provides a reference elevation for the hoop structure 2.

[0022] The hoop structure 2 consists of two hoop bodies, each of which consists of a semicircular hoop panel 6, a flange plate 7, a stiffening plate 8 and a tension bolt 9. A stiffening plate 8 is provided at each end of each semicircular hoop panel 6, and a flange plate 7 is provided on the outward side wall of each stiffening plate 8. Each flange plate 7 is provided with two side-by-side tension bolt holes 11 for the tension bolts 9 to pass through. The two hoop bodies are closed from both sides of the steel pipe composite pile 1 to the middle, and the tension bolts 9 pass through the tension bolt holes 11 on the flange plates 7 of the two hoop bodies, closing the two semicircular hoop panels 6 and tightly fixing them on the side walls of the steel pipe composite pile 1, and bearing the upper load through the static friction between the two semicircular hoop panels 6 and the steel pipe composite pile 1; a distribution beam 3 is installed on the two stiffening plates 8 on one side of the steel pipe composite pile 1 by bolt connection.

[0023] The limiting plate 10 is made of 200mm×150mm steel plate and is welded to the steel pipe composite pile 1.

[0024] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. An offshore steel pipe composite pile hoop type drilling platform, characterized by: It consists of a hoop structure, a distribution beam, a Bailey beam, a steel panel, and a limit plate, wherein: a hoop structure is fixed on the upper outer wall of each composite steel pipe pile, and the static friction between the hoop structure and the steel pipe composite pile is used to bear the upper load; two distribution beams are symmetrically installed on the top of each hoop structure through bolt connection, and a Bailey beam is installed on the distribution beam on the adjacent steel pipe composite pile, and a steel panel is laid on the top of the Bailey beam; a limit plate supporting the hoop structure is fixed on the upper outer wall of each composite steel pipe pile and at the bottom of the hoop structure, and the limit plate provides a reference elevation for the hoop structure.

2. The offshore steel pipe composite pile hoop drilling platform according to claim 1, characterized in that: The hoop structure consists of two hoop bodies, each semicircular hoop body consists of a semicircular hoop panel, a flange plate, a stiffening plate and tension bolts. A stiffening plate is provided at each end of each semicircular hoop panel, a flange plate is provided on the outward side wall of each stiffening plate, and two side-by-side tension bolt holes for tension bolts to pass through are provided on each flange plate. The two hoop bodies are closed from both sides of the steel pipe composite pile to the middle, and the tension bolts pass through the tension bolt holes on the flange plates of the two hoop bodies, closing the two semicircular hoop panels and tightly fixing them on the side walls of the steel pipe composite pile; a distribution beam is installed on the two stiffening plates on one side of the steel pipe composite pile through bolt connection.

3. The offshore steel pipe composite pile hoop drilling platform according to claim 1 is characterized in that: The limiting plate is made of 200mm×150mm steel plate and welded to the steel pipe composite pile.

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