Offshore and shallow water area bare rock and shallow covering layer offshore steel platform structure

Abstract

The utility model discloses an offshore steel platform structure for bare rocks and shallow covering layers in offshore and shallow water areas. The offshore steel platform structure comprises a steel platform and a plurality of supporting piles. The steel platform is mounted on the supporting piles; the supporting piles are installed in a bare rock layer used in cooperation with the steel platform structure, large-diameter expansion bolts are installed in the supporting piles, and the downward ends of the large-diameter expansion bolts penetrate out of the supporting piles and are installed in the bare rock layer. A fixing assembly used for fixing the large-diameter expansion bolt in the supporting pile is installed in the supporting pile. The method has the effects of simplifying the steel platform construction procedure and improving the construction efficiency.

Description

Technical Field

[0001] The invention relates to the field of water construction, and in particular to an offshore steel platform structure with bare rock and shallow covering layer in offshore and shallow water areas. Background Art

[0002] In modern water transport projects, offshore and shallow water offshore steel platforms often use the full-cover technology of driven steel pipe piles and Bailey beam system. When building a steel platform, it is necessary to pour concrete strip foundation underwater or use the hole-drawing technology to complete the driving of supporting piles. The construction process includes formwork support and dismantling, concrete pouring, concrete structure dismantling, underwater cutting of supporting piles, landform restoration, etc.

[0003] With regard to the above-mentioned related technologies, the existing offshore and shallow water area steel platform construction process is cumbersome and the construction time is long; at the same time, when the steel platform is constructed on the bare rock terrain near the aquaculture area, the concrete breaking after the construction is completed is likely to cause seawater pollution, which has a great impact on the surrounding aquaculture areas and is not conducive to green and environmentally friendly construction. Summary of the invention

[0004] In order to simplify the construction process and improve the construction efficiency, the present application provides an offshore steel platform structure for bare rock and shallow overburden in offshore and shallow water areas.

[0005] The present application provides an offshore steel platform structure for bare rock and shallow overburden in offshore and shallow water areas, which adopts the following technical solutions:

[0006] An offshore steel platform structure for bare rock and shallow overburden in offshore and shallow water areas, comprising a steel platform and a plurality of supporting piles; the steel platform is installed on the supporting piles; each of the supporting piles is installed in a bare rock layer for use with the steel platform structure, and large-diameter expansion bolts are installed in the supporting piles, and the large-diameter expansion bolts pass through the supporting piles toward the lower end and are installed in the bare rock layer; a fixing assembly for fixing the large-diameter expansion bolts in the supporting piles is installed in the supporting piles.

[0007] By adopting the above technical scheme, after the support piles are lowered to the surface of the bare rock layer, installation holes for large-diameter expansion bolts are drilled on the bare rock layer, the large-diameter expansion bolts are tightened to fix the large-diameter expansion bolts in the bare rock layer, and then the large-diameter expansion bolts are fixed to the support piles using fixing components, so that the support piles are anchored to the bare rock layer through the large-diameter expansion bolts anchored in the bare rock layer; the construction process, first, abandons the traditional process of underwater casting of concrete strip foundations on bare rock terrain, reduces the processes of formwork support and dismantling, concrete pouring, and landform restoration, greatly improves construction efficiency, and significantly shortens the construction period; second, the underwater concrete pouring near the aquaculture area and the concrete breaking after the completion of the temporary project are easily caused by seawater pollution. The impact on the surrounding aquaculture areas is completely eliminated, providing a better external environment for engineering construction.

[0008] Preferably, inverted cone steel plates are provided at both ends of the support pile along its length direction, and a guide hole for the large-diameter expansion bolt to pass through is opened at the bottom of each inverted cone steel plate.

[0009] By adopting the above technical solution, the conical surface of the inverted cone steel plate can form a guide surface, which can accurately guide the large-diameter expansion bolts passing through the guide holes into the bare rock layer and install them vertically in the bare rock layer, thereby improving the pull-out strength of the large-diameter expansion bolts in the vertical direction, thereby improving the structural strength of the support piles installed in the bare rock layer, and ultimately improving the overall stability of the steel platform after installation.

[0010] Preferably, the steel platform is slidably mounted on the support piles in a vertical direction, and a lifting component for driving the steel platform to slide on the support piles is installed on the support piles.

[0011] By adopting the above technical solution, the lifting assembly is started to drive the steel platform to slide on the supporting piles, which makes it convenient for workers to adjust the elevation of the steel platform. Adjusting the elevation of the steel platform on the fixed supporting piles can reduce the use of large lifting equipment such as cranes and improve economic benefits.

[0012] Preferably, the lifting assembly includes a plurality of guide casings, each of which is mounted on the steel platform, and one of the guide casings is slidably mounted on one of the support piles. The lifting assembly also includes a driving member for driving each of the guide casings to slide on each of the support piles.

[0013] By adopting the above technical solution, the steel platform can be supported at multiple points using the guide casing, thereby improving the stability of the steel platform during lifting and lowering.

[0014] Preferably, the driving member includes a driving motor and a driving gear, a toothed steel bar is provided on the guide casing, and the toothed steel bar is extended in the vertical direction; the driving gear is rotatably installed on the supporting pile; the driving motor is installed on the supporting pile, and the driving gear is sleeved on the output end of the driving motor; the driving gear is meshed with the toothed steel bar.

[0015] By adopting the above technical solution, a combination of a driving gear and a toothed steel bar is used to drive the guide casing to drive the steel platform to slide on the supporting piles, thereby improving the accuracy and automation of the sliding of the steel platform.

[0016] Preferably, each of the support piles is provided with a plurality of first fixing holes along the vertical direction, and each of the guide casings is provided with a plurality of second fixing holes along the vertical direction; each of the support piles is provided with a plurality of fixing rods, one end of a fixing rod is passed through one of the first fixing holes and is inserted into the support pile, and the other end is passed through one of the second fixing holes and is inserted into the guide casing.

[0017] By adopting the above technical solution, when the steel platform needs to be fixed on the supporting piles, the workers only need to directly insert the fixing rod into the guide casing and the guide casing at the same time, and then the steel platform fixedly connected to the guide casing can be fixed on the supporting piles.

[0018] Preferably, a plurality of the guide casings are circumferentially arranged on the steel platform, and connecting steels are arranged between the guide casings, and two ends of each connecting steel are respectively connected to two adjacent guide casings.

[0019] By adopting the above technical solution, connecting steel is used to stably connect each guide casing, thereby improving the stability of each guide casing on the steel platform. At the same time, each guide casing is synchronized so that each guide casing slides synchronously on the supporting piles, thereby improving the sliding stability of the steel platform.

[0020] Preferably, the fixing assembly includes a fixing block, which abuts against the inverted cone steel plate at the bottom of the supporting pile; the large diameter expansion bolt is passed through and fixedly installed on the fixing block, and the large diameter expansion bolt passes through one end of the fixing block and is installed on the bare rock layer.

[0021] By adopting the above technical solution, after the large-diameter expansion bolt with the fixed block is passed through the inverted conical steel plate above the supporting pile, another inverted conical steel plate is put on the large-diameter expansion bolt and welded to the supporting pile, and then the large-diameter expansion bolt is installed until the fixed block is pressed against the inverted conical steel plate below.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The traditional process of pouring concrete strip foundation underwater on bare rock terrain has been abandoned, which reduces the processes of formwork support and dismantling, concrete pouring, and landform restoration, greatly improves the construction efficiency, and significantly shortens the construction period;

[0024] 2. The pouring of underwater concrete near the aquaculture area and the breaking of concrete after the completion of the temporary project will completely eliminate the impact of seawater pollution on the surrounding aquaculture areas, providing a better external environment for the construction project. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view of the steel platform structure of an embodiment of the present application.

[0026] Figure 2 It is a cross-sectional view of a support pile according to an embodiment of the present application.

[0027] Figure 3 It is a top view of the steel platform structure of an embodiment of the present application.

[0028] Figure 4It is a side view of the steel platform structure of an embodiment of the present application.

[0029] Description of reference numerals:

[0030] 1. Steel platform; 2. Support piles; 21. Large diameter expansion bolts; 22. Inverted cone steel plate; 221. Guide hole; 23. Fixed block; 3. Lifting assembly; 31. Guide casing; 32. Driving gear; 33. Toothed steel bar; 4. Fixed rod; 5. Bare rock layer. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The embodiment of the present application discloses an offshore steel platform structure for bare rock and shallow overburden in offshore and shallow water areas.

[0033] Reference Figure 1 and Figure 2 The offshore steel platform 1 structure of bare rock and shallow overburden in offshore and shallow water areas includes a steel platform 1 and a plurality of supporting piles 2; the steel platform 1 is installed on the supporting piles 2; each supporting pile 2 is installed in a bare rock layer 5 used in conjunction with the steel platform 1 structure, and a large-diameter expansion bolt 21 is installed in the supporting pile 2, and the large-diameter expansion bolt passes through the supporting pile 2 toward the lower end and is installed in the bare rock layer 5; inverted conical steel plates 22 are arranged at both ends of the supporting pile 2 along its own length direction, and a guide hole 221 for the large-diameter expansion bolt to pass through is opened at the bottom of each inverted conical steel plate 22.

[0034] Reference Figure 2 A fixing assembly for fixing the large diameter expansion bolt 21 in the supporting pile 2 is installed in the supporting pile 2; the fixing assembly includes a fixing block 23, and the fixing block 23 abuts against the inverted cone-shaped steel plate 22 at the bottom of the supporting pile 2; the large diameter expansion bolt 21 is passed through and fixedly installed in the fixing block 23, and the large diameter expansion bolt 21 passes through one end of the fixing block 23 and is installed in the bare rock layer 5. When the installation of the large diameter expansion bolt 21 is completed, the worker welds the fixing block 23 in the supporting pile 2 to further strengthen the connection strength between the large diameter expansion bolt 21 and the supporting pile 2.

[0035] Reference Figure 1 , Figure 3 and Figure 4The steel platform 1 is slidably mounted on the supporting pile 2 in the vertical direction, and a lifting assembly 3 for driving the steel platform 1 to slide on the supporting pile 2 is installed on the supporting pile 2; the lifting assembly 3 includes a plurality of guide casings 31, each of which is mounted on the steel platform 1, and a guide casing 31 is slidably mounted on a supporting pile 2, and the lifting assembly 3 also includes a driving member for driving each guide casing 31 to slide on each supporting pile 2; the driving member includes a driving motor and a driving gear 32, and a toothed steel bar 33 is provided on the guide casing 31, and the toothed steel bar 33 is extended in the vertical direction; the driving gear 32 is rotatably mounted on the supporting pile 2; the driving motor is mounted on the supporting pile 2, and the driving gear 32 is sleeved on the output end of the driving motor; the driving gear 32 is meshed with the toothed steel bar 33; after the driving motor is started, the driving gear 32 is driven to rotate, thereby driving the guide casing 31 to move on the supporting pile 2 through the toothed steel bar 33 meshed with the driving gear 32, thereby driving the steel platform 1 to move on the supporting pile 2.

[0036] Each supporting pile 2 is provided with a plurality of first fixing holes along the vertical direction, and each guiding casing 31 is provided with a plurality of second fixing holes along the vertical direction; each supporting pile 2 is provided with a plurality of fixing rods 4, one end of a fixing rod 4 is passed through one of the first fixing holes and is arranged in the supporting pile 2, and the other end is passed through a second fixing hole and is arranged in the guiding casing 31.

[0037] A plurality of guide casings 31 are circumferentially arranged on the steel platform 1, and connecting steels are arranged between the guide casings 31. The two ends of each connecting steel are respectively connected to two adjacent guide casings 31. The guide casings 31 are connected by connecting steels to improve the connection stability between the guide casings 31, thereby providing a good foundation for the stable lifting and lowering of the steel platform 1.

[0038] The implementation principle of the offshore steel platform 1 structure of bare rock and shallow overburden in offshore and shallow water areas in the embodiment of the present application is as follows: when constructing the steel platform 1, the support piles 2 are first installed on the bare rock layer 5, and then the large diameter expansion bolts 21 are driven into the bare rock layer 5, and the large diameter expansion bolts 21 are screwed to anchor the large diameter expansion bolts 21 in the bare rock layer 5, and then the support piles 2 are anchored as a whole in the bare rock layer 5. At this time, the steel platform 1 equipped with the guide casing 31 is hoisted onto the support pile 2 until the toothed steel bar 33 on the guide casing 31 is meshed with the driving gear 32 on the support pile 2, and the driving motor is started to drive the driving gear 32 to rotate, thereby driving the toothed steel bar 33 to drive the guide casing 31 to slide in the vertical direction relative to the support pile 2, and the elevation of the steel platform 1 is adjusted. When the elevation of the steel platform 1 reaches a predetermined height, the fixing rod 4 is used to insert the relative support pile 2 and the guide casing 31, so that the steel platform 1 is fixed on the support pile 2.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An offshore steel platform structure for bare rock and shallow overburden in offshore and shallow water areas, characterized in that: The invention comprises a steel platform (1) and a plurality of supporting piles (2); the steel platform (1) is installed on the supporting piles (2); each of the supporting piles (2) is installed in a bare rock layer (5) for use with the structure of the steel platform (1); a large-diameter expansion bolt (21) is installed in the supporting pile (2); the large-diameter expansion bolt passes through the supporting pile (2) toward the lower end and is installed in the bare rock layer (5); a fixing component for fixing the large-diameter expansion bolt (21) in the supporting pile (2) is installed in the supporting pile (2).

2. The offshore steel platform structure for bare rock and shallow overburden in offshore and shallow water areas according to claim 1, characterized in that: The supporting pile (2) is provided with inverted cone-shaped steel plates (22) at both ends along its length direction, and the bottom of each inverted cone-shaped steel plate (22) is provided with a guide hole (221) for the large-diameter expansion bolt to pass through.

3. The offshore steel platform structure for bare rock and shallow overburden in offshore and shallow water areas according to claim 1, characterized in that: The steel platform (1) is slidably mounted on the support pile (2) in a vertical direction, and a lifting component (3) is mounted on the support pile (2) for driving the steel platform (1) to slide on the support pile (2).

4. The offshore steel platform structure for bare rock and shallow overburden in offshore and shallow water areas according to claim 3, characterized in that: The lifting assembly (3) comprises a plurality of guide casings (31), each of the guide casings (31) being mounted on the steel platform (1), and one of the guide casings (31) being slidably mounted on one of the support piles (2). The lifting assembly (3) further comprises a driving member for driving each of the guide casings (31) to slide on each of the support piles (2).

5. The offshore steel platform structure for bare rock and shallow overburden in offshore and shallow water areas according to claim 4, characterized in that: The driving member comprises a driving motor and a driving gear (32); a toothed steel bar (33) is provided on the guide casing (31), and the toothed steel bar (33) is extended in the vertical direction; the driving gear (32) is rotatably mounted on the supporting pile (2); the driving motor is mounted on the supporting pile (2), and the driving gear (32) is sleeved on the output end of the driving motor; the driving gear (32) is meshed with the toothed steel bar (33).

6. The offshore steel platform structure for bare rock and shallow overburden in offshore and shallow water areas according to claim 4, characterized in that: Each of the support piles (2) is provided with a plurality of first fixing holes in the vertical direction, and each of the guide casings (31) is provided with a plurality of second fixing holes in the vertical direction; each of the support piles (2) is provided with a plurality of fixing rods (4), one end of a fixing rod (4) is passed through one of the first fixing holes and is arranged in the support pile (2), and the other end is passed through one of the second fixing holes and is arranged in the guide casing (31).

7. The offshore steel platform structure for bare rock and shallow overburden in offshore and shallow water areas according to claim 6, characterized in that: A plurality of guide casings (31) are arranged on the steel platform (1) along the circumferential direction, and connecting steels are arranged between the guide casings (31), and two ends of each connecting steel are respectively connected to two adjacent guide casings (31).

8. The offshore steel platform structure for bare rock and shallow overburden in offshore and shallow water areas according to claim 2, characterized in that: The fixing assembly comprises a fixing block (23), wherein the fixing block (23) abuts against the inverted cone-shaped steel plate (22) located at the bottom of the supporting pile (2); the large-diameter expansion bolt (21) is passed through and fixedly installed on the fixing block (23), and the large-diameter expansion bolt (21) passes through one end of the fixing block (23) and is installed on the bare rock layer (5).

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