Construction platform for offshore booster station foundation rock penetrating construction

Abstract

The utility model discloses a construction platform for offshore booster station foundation rock penetrating construction, which comprises an upper platform and a lower platform, and is convenient to install and stable in structure. The guide structures are arranged on the upper platform and the lower platform respectively, and the pushing devices are arranged at the positions of the guide structures, so that a good positioning and guiding effect can be achieved on a foundation pile or a steel casing, the accuracy and perpendicularity of the sinking position of the foundation pile and the steel casing are guaranteed, and the device can be suitable for structures with different diameters such as the steel casing and the foundation pile. The lower platform comprises a bottom layer truss, a middle layer truss and an upper layer truss, the guide cylinder is arranged on the outer side of the middle layer truss, a fence is arranged around the middle layer truss, a stair is arranged between the middle layer truss and the upper layer truss, and constructors firstly go down to the upper layer truss of the lower platform from the upper platform and then go down to the middle layer truss through the stair. Therefore, a constructor can adjust the foundation pile or the steel casing in the guide cylinder on the middle-layer truss and observe the construction condition in real time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to offshore construction technical field, concretely relates to a construction platform for offshore booster station foundation rock drilling construction. BACKGROUND

[0002] With the proposal of the "double carbon" goal, the wind power industry, as one of the important means to achieve this goal, has developed rapidly, with the installed capacity increasing year by year, and offshore wind power has ushered in a new opportunity. However, with the continuous increase of single machine capacity of wind turbine generators and the scale of individual wind farms, the distance from the wind farm to the shore and the water depth are becoming increasingly deeper, and the use of offshore booster stations for transmission efficiency and safety and stability of offshore power transmission is becoming more and more frequent. In most cases, offshore booster stations use post-pile method four-pile jacket foundations, but in the Datang Hainan Danzhou project, the booster station foundation geology contains rock interlayer, and the rock layer is weathered to varying degrees, which cannot be directly used for pile sinking. During construction, drilling and rock drilling are required to ensure construction efficiency and quality. CONTENT OF THE UTILITY MODEL

[0003] The utility model mainly overcomes the shortage of prior art, provides a construction platform for offshore booster station foundation rock drilling construction. Its installation is simple, operation is relatively convenient, and the construction efficiency and quality of the site can be effectively guaranteed.

[0004] The utility model is implemented through the following technical solutions:

[0005] A construction platform for offshore booster station foundation rock drilling construction, comprising an upper platform and a lower platform, the upper platform is installed on the top of the lower platform;

[0006] The upper platform comprises an upper platform body, a plurality of upper guide openings are arranged on the upper platform body, and a plurality of pushing devices are further arranged around each guide opening, which are used for fine adjustment of the position of the pile or steel casing in the guide opening and play the role of adapting to piles and steel casings of different diameters; a plurality of vertical fixing columns are arranged on the upper platform body, the bottom of the vertical fixing column extends out of the upper platform body by a length, and the bottom of the vertical fixing column is used for inserting the lower platform and docking with the lower platform; a hoisting connecting part is arranged at the top of the vertical fixing column;

[0007] The lower platform comprises a lower platform body, a plurality of vertical positioning piles are arranged on the lower platform body, a top of the vertical positioning pile is provided with a butt joint sleeve for butt joint with a vertical fixing column of the upper platform, a bottom of the vertical fixing column is inserted into the butt joint sleeve, and the upper platform is fixedly installed on the lower platform; a plurality of guide cylinders are arranged on the lower platform body, the guide cylinder is located at a position directly below a guide port of the upper platform, and a plurality of jacking devices are also arranged around each guide cylinder, the positions of the foundation piles or the steel casings in the guide cylinders are fine adjusted through the jacking devices, and the foundation piles and the steel casings with different diameters are adapted; in this way, in construction, after the foundation piles or the steel casings are inserted into the guide port of the upper platform, the foundation piles or the steel casings are inserted into the guide cylinder of the lower platform, the guide port plays a positioning and guiding role on an upper section of the foundation piles or the steel casings, and the guide cylinder plays a positioning and guiding role on a lower section of the foundation piles or the steel casings, so that good positioning and guiding effects of the entire foundation piles or the steel casings are achieved, and the positions of the foundation piles and the steel casings sinking are accurate and vertical.

[0008] In the above technical solution, the upper platform body is a rectangular frame structure, the upper platform body is welded by a cross beam, a longitudinal beam and an inclined support rod, and a flat plate is laid on a top surface of the upper platform body to form a construction platform, and construction equipment can be arranged on the upper platform.

[0009] In the above technical solution, the number of the guide ports is 4, and the guide ports are arranged in a rectangular shape and located at four corner positions on the upper platform body; the number of the vertical fixing columns is 4, and the vertical fixing columns are arranged in a rectangular shape; the number of the vertical positioning piles is 4, and the vertical positioning piles are arranged in a rectangular shape; and the number of the guide cylinders is 4, and the guide cylinders are arranged in a rectangular shape.

[0010] In the above technical solution, the jacking device can be a hydraulic push rod or a manually adjusted jacking bolt structure.

[0011] In the above technical solution, a conical guide ring with a diameter gradually expanding from bottom to top is arranged at an upper port of the guide cylinder, so that the foundation piles or the steel casings are conveniently inserted into the guide cylinder.

[0012] In the above technical solution, the lower platform body comprises a bottom layer truss, a middle layer truss and an upper layer truss which are arranged at intervals from bottom to top, the bottom layer truss and the middle layer truss and the middle layer truss and the upper layer truss are connected through inclined struts respectively to form a stable connection structure.

[0013] In the technical scheme, the guide cylinder is located at a lower position outside the middle-layer truss of the lower platform body, a fence is arranged around the middle-layer truss, and a staircase is arranged between the middle-layer truss and the upper-layer truss, so that the construction personnel can first go down from the upper platform to the upper-layer truss of the lower platform, and then go down to the middle-layer truss through the staircase, and the construction personnel can adjust the pile or the steel casing in the guide cylinder on the middle-layer truss and observe the construction condition in real time, and the fence ensures the safety of the construction personnel.

[0014] In the technical scheme, the guide cylinder is fixedly connected with the lower platform body through the connecting frame, and the inner end of the connecting frame is fixedly connected with the vertical positioning pile and the middle-layer truss on the lower platform body, so that the connecting strength of the guide cylinder is ensured.

[0015] The construction platform has the advantages and beneficial effects that:

[0016] The construction platform is assembled by butting the upper platform and the lower platform through the vertical positioning piles, so that the construction platform is convenient to install and stable in structure.

[0017] The construction platform can be used to drill a hole in the seabed, pass through the seabed rock layer, and avoid the collapse of the hole by using the steel casing, and after the hole is drilled, the construction platform can be used to accurately and vertically sink the pile into the hole to the target depth.

[0018] The lower platform comprises a bottom-layer truss, a middle-layer truss and an upper-layer truss which are arranged at intervals from bottom to top, the bottom-layer truss and the middle-layer truss and the middle-layer truss and the upper-layer truss are connected by inclined struts respectively to form stable connection structures, the guide cylinder is arranged at a lower position outside the middle-layer truss, a fence is arranged around the middle-layer truss, and a staircase is arranged between the middle-layer truss and the upper-layer truss, so that the construction personnel can first go down from the upper platform to the upper-layer truss of the lower platform, and then go down to the middle-layer truss through the staircase, and the construction personnel can adjust the pile or the steel casing in the guide cylinder on the middle-layer truss and observe the construction condition in real time, and the fence ensures the safety of the construction personnel. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view of the construction platform for offshore booster station foundation rock-penetrating construction.

[0020] Figure 2The utility model is a construction platform for offshore booster station foundation rock-penetrating construction.

[0021] Figure 3 The utility model is a construction platform for offshore booster station foundation rock-penetrating construction.

[0022] Figure 4 The utility model is a construction platform for offshore booster station foundation rock-penetrating construction.

[0023] Figure 5 The utility model is a construction platform for offshore booster station foundation rock-penetrating construction.

[0024] Figure 6 The utility model is a construction platform for offshore booster station foundation rock-penetrating construction. Figure 1 The utility model is a construction platform for offshore booster station foundation rock-penetrating construction.

[0025] Figure 7 The utility model is a construction platform for offshore booster station foundation rock-penetrating construction.

[0026] For those skilled in the art, other related drawings can be obtained according to the above drawings without creative labor. DETAILED DESCRIPTION

[0027] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme of the utility model will be further explained in combination with specific embodiments below.

[0028] A construction platform for offshore booster station foundation rock-penetrating construction, comprising two parts of an upper platform 100 and a lower platform 200, wherein the upper platform 100 is installed on the top of the lower platform 200.

[0029] The upper platform 100 comprises an upper platform body 1, preferably a rectangular frame structure, which is welded by a cross beam 11, a longitudinal beam 12 and an inclined support rod 13, and a flat plate is laid on the top surface of the upper platform body 1 to form a construction platform, and construction equipment can be arranged on the upper platform; four upper guide openings 14 are arranged on the upper platform body 1, which are arranged in a rectangular shape and located at the four top corners of the upper platform body 1; further, the guide openings 14 are round, and during construction, a foundation pile (the foundation pile is a steel pipe pile) or a steel casing (the steel casing is used for rock-penetrating construction, and the construction process will be described later) is inserted into the guide openings 14 to play a positioning and guiding role.

[0030] Further, four vertical fixing columns 15 are arranged on the upper platform body 1, preferably, the four vertical fixing columns are arranged in a rectangular shape and are located at the inner side of the four guide openings 14 on the upper platform body 1; the bottom of the vertical fixing column 15 extends out of the upper platform body 1 by a length, and the bottom of the vertical fixing column 15 is used for inserting the lower platform 200 and is connected with the lower platform 200; the top of the vertical fixing column 15 is provided with a lifting connection part, preferably, the lifting connection part adopts a lifting hole structure 16 and is used for connecting with the lifting hook of the crane, so that the upper platform 100 is moved by the crane, and the installation and disassembly between the upper platform 100 and the lower platform 200 are realized. Further, referring to the drawings Figure 5 The vertical fixing column 15 is welded with the cross beam and the longitudinal beam of the upper platform body 1 through a plurality of connecting rods 151, so as to form a stable connection structure.

[0031] Further, a plurality of pushing devices 17 are arranged around the guide opening 14 on the upper platform body 1, the number of the pushing devices is preferably 3-9, the pushing devices are uniformly arranged along the circumference of the guide opening 14, the front end of the pushing device is used for acting on the outer wall of the pile or the steel casing in the guide opening 14 by adjusting the extension length of the pushing device, so as to realize the fine adjustment of the position of the pile or the steel casing in the guide opening 14 and adapt to piles and steel casings with different diameters. Preferably, the pushing device can adopt a hydraulic push rod or a manually adjusted pushing bolt structure.

[0032] The lower platform 200 comprises a lower platform body 2, four vertical positioning piles 21 are arranged on the lower platform body 2, the four vertical positioning piles 21 are arranged in a rectangular shape and are used as the main support of the entire lower platform 200; the top of each of the four vertical positioning piles 21 is provided with a butt joint sleeve 211 which is used for butt joint with the vertical fixing column 15 of the upper platform 100, the bottom of the vertical fixing column 15 is inserted into the butt joint sleeve 211 and is locked and fixed, so as to realize the stable fixed installation of the upper platform 100 on the lower platform 200; further, preferably, the lower platform body 2 comprises a bottom layer truss 22, a middle layer truss 23 and an upper layer truss 24 which are arranged in a spaced manner from bottom to top, the bottom layer truss 22 and the middle layer truss 23 and the middle layer truss 23 and the upper layer truss 24 are connected through inclined struts 27 respectively, so as to form a stable connection structure.

[0033] Four guide cylinders 25 are arranged on the lower platform body 2, the four guide cylinders 25 are arranged in a rectangular shape and are located directly below the guide opening 14 of the upper platform, and a plurality of pushing devices 251 are arranged around each of the guide cylinders 25, referring to the drawings Figure 7Preferably, 3-6 pushing devices 251 are arranged on the wall of each guide cylinder 25 and evenly distributed along the circumference of the guide cylinder, which can fine-tune the position of the pile or steel casing in the guide cylinder 25 and adapt to piles and steel casings of different diameters; in this way, when the pile or steel casing is inserted into the guide opening 14 of the upper platform, the guide opening 14 can position and guide the upper section of the pile or steel casing, and the guide cylinder 25 can position and guide the lower section of the pile or steel casing, so that the pile and steel casing can be well positioned and guided, ensuring the accuracy of the position and the verticality of the pile and steel casing.

[0034] Further, the upper opening of the guide cylinder 25 is provided with a conical guide ring 252 with a gradually expanding diameter from bottom to top (see FIG. 6), so that the pile or steel casing can be easily inserted into the guide cylinder 25. Figure 1

[0035] Further, the guide cylinder 25 is located at the lower position outside the middle truss 23 of the lower platform body 2, and a fence 231 is arranged around the middle truss 23, and a staircase 232 is arranged between the middle truss 23 and the upper truss 24, so that the construction personnel can first go down from the upper platform to the upper truss 24 of the lower platform, and then go down to the middle truss 23 through the staircase 232, so that the construction personnel can adjust the pile or steel casing in the guide cylinder 25 and observe the construction situation in real time on the middle truss 23, and the fence 231 ensures the safety of the construction personnel.

[0036] Further, the guide cylinder 25 is fixedly connected with the lower platform body 2 through the connecting frame 26, and preferably, the connecting frame 26 is composed of multiple connecting rods, the inner ends of which are fixedly connected with the vertical positioning pile 21 and the middle truss 23 on the lower platform body 2, so as to ensure the connection strength of the guide cylinder 25.

[0037] The method for offshore booster station foundation rock-penetrating construction by using the above construction platform comprises the following steps:

[0038] Step 1: hoist and transport the lower platform to the target position on the sea, and support the bottom of the lower platform on the seabed.

[0039] Step 2: hoist the upper platform, insert the bottom of the vertical fixed column of the upper platform into the butt joint sleeve at the top of the vertical positioning pile of the lower platform, and lock and fix, so as to realize the stable fixed installation of the upper platform on the lower platform.

[0040] Step 3: arrange rock drilling related equipment on the upper platform.

[0041] ​Step 4: After the steel casing is inserted into the guide port 14 of the upper platform and the guide cylinder 25 of the lower platform in turn, the steel casing is adjusted to be vertical by adjusting the pushing device around the guide port 14 and the pushing device around the guide cylinder 25, and the bottom of the steel casing is inserted into the seabed mud surface; then the drill bit is placed in the steel casing, the drill bit is started, and drilling is performed downward, so that the steel casing and the drill bit move downward synchronously, pass through the rock layer, and reach the set depth.

[0042] Step 5: The steel casing and the drill bit are taken out upward, and then the foundation pile is inserted into the guide port 14 of the upper platform and the guide cylinder 25 of the lower platform, the foundation pile is adjusted to be vertical and reach the target position by adjusting the pushing device around the guide port 14 and the pushing device around the guide cylinder 25, and the foundation pile is aligned with the drill hole; then the foundation pile is driven downward into the drill hole to reach the set depth.

[0043] For ease of description, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to describe one element or feature's relationship to another element or feature as illustrated in the drawings. It should be understood that the spatial terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, an element described as being "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or located in any other orientation) and the spatially relative terms used herein interpreted accordingly.

[0044] Moreover, relative terms such as "first" and "second" are used merely to distinguish one component from another, rather than to denote any inherent preference or order.

[0045] The above has made an exemplary description of the present application, and it should be explained that, without departing from the core of the present application, any simple modification, change or other equivalent replacement which can not cost creative labor by those skilled in the art falls within the protection scope of the present application.

Claims

1. A construction platform for offshore substation foundation rock penetration construction, characterized by: The upper platform and the lower platform are two parts, and the upper platform is installed on the top of the lower platform; The upper platform includes an upper platform body, a plurality of upper guide ports are arranged on the upper platform body, and a plurality of pushing devices are arranged around each guide port; a plurality of vertical fixing columns are arranged on the upper platform body, the bottom of the vertical fixing column extends out of the upper platform body by a length, and the bottom of the vertical fixing column is used for inserting the lower platform and docking with the lower platform; the top of the vertical fixing column is provided with a hoisting connecting part; The lower platform includes a lower platform body, a plurality of vertical positioning piles are arranged on the lower platform body, the top of the vertical positioning pile is provided with a docking sleeve for docking with the vertical fixing column of the upper platform, and the bottom of the vertical fixing column is inserted into the docking sleeve; a plurality of guide cylinders are arranged on the lower platform body, the guide cylinder is located directly below the guide port of the upper platform, and a plurality of pushing devices are also arranged around each guide cylinder.

2. The construction platform for offshore booster station foundation through- rock construction according to claim 1, characterized in that: The upper platform body is a rectangular frame structure, and a flat plate is laid on the top surface of the upper platform body.

3. The construction platform for offshore booster station foundation through- rock construction according to claim 1, characterized in that: The number of guide ports is 4, which are arranged in a rectangular shape and located at the four corners of the upper platform body; the number of vertical fixing columns is 4, which are arranged in a rectangular shape.

4. The construction platform for offshore booster station foundation through- rock construction according to claim 3, characterized in that: The number of vertical positioning piles is 4, which are arranged in a rectangular shape; the number of guide cylinders is 4, which are arranged in a rectangular shape.

5. The construction platform for offshore booster station foundation through- rock construction according to claim 1, characterized in that: The pushing device adopts a hydraulic push rod or a manually adjustable pushing bolt structure.

6. The construction platform for offshore booster station foundation through- rock construction of claim 1, characterized in that: The upper opening of the guide cylinder is provided with a conical guide ring which gradually expands from bottom to top.

7. The construction platform for offshore booster station foundation through- rock construction of claim 1, characterized in that: The lower platform body includes a bottom truss, a middle truss and an upper truss which are arranged at intervals from bottom to top, and the bottom truss and the middle truss and the middle truss and the upper truss are connected by inclined struts respectively.

8. A construction platform for offshore booster station foundation pile driving according to claim 7, characterised in that: The guide cylinder is located on the outer side of the middle truss of the lower platform body and is arranged at a lower position, and a fence is arranged around the middle truss, and a staircase is arranged between the middle truss and the upper truss.

9. The construction platform for offshore booster station foundation through- rock construction according to claim 7, characterized in that: The guide cylinder is fixedly connected with the lower platform body through a connecting frame.

10. A construction platform for offshore booster station foundation pile driving according to claim 9, characterized in that: The inner end of the connecting frame is fixedly connected with the vertical positioning pile and the middle truss on the lower platform body.

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