Rock-embedded construction platform for inclined pile groups and construction method thereof

Abstract

The present invention discloses a rock-embedded construction platform for inclined pile groups, comprising two small platforms and a docking device. Each small platform comprises an anti-sinking plate, a second-layer platform, a third-layer platform and a top-layer platform from bottom to top, and also comprises four corner auxiliary pile sleeves, two middle auxiliary pile sleeves, four anti-lifting mechanisms and four lifting seats; the four corner auxiliary pile sleeves are inserted one-to-one at the four corners of the small platform; the two middle auxiliary pile sleeves are inserted one-to-one at both sides of the middle of the small platform; the four anti-lifting mechanisms are installed one-to-one between the top surface of the sleeve mounting ring at the four corners of the top platform and the top outer surface of the four corner auxiliary piles; the four lifting seats are installed one-to-one at the four corners of the top platform; the docking device is arranged between the splicing surfaces of the two small platforms and comprises a guide mechanism, a limit mechanism and a splicing rod. The present invention can not only reduce the difficulty of production, but also save transportation costs, and can reduce the lifting capacity of the crane ship during installation.

Description

Technical Field

[0001] The present invention relates to a rock-socketed construction platform for a group of batter piles and a method for building the same. Background Art

[0002] In bridge and wharf structures, multiple pile foundations usually work together, and there are both vertical piles and batter piles among the multiple pile foundations. Each pile foundation needs to be inserted into the seabed to a certain depth. Due to the complex marine geology, in order to improve the bearing capacity of pile foundations in sea areas with relatively shallow overburden layers, rock-socketed construction of pile foundations is required. When carrying out rock-socketed construction of pile foundations, a pile driving vessel is usually used. However, in severe sea conditions and when the pile foundation is close to a steel approach bridge, a traditional pile driving vessel cannot be used, and large equipment such as a drilling rig and a crawler crane need to be used. These rock-socketed construction equipment need to work on an auxiliary platform temporarily built at sea. To ensure that the construction platform can bear the load during the rock-socketed construction process and provide sufficient working space, the volume of the construction platform is usually large. Therefore, it not only increases the manufacturing difficulty of the construction platform, but also increases the transportation cost and the lifting capacity of the lifting vessel. Summary of the Invention

[0003] An object of the present invention is to overcome the defects of the prior art and provide a rock-socketed construction platform for a group of batter piles and a method for building the same, which not only reduces the manufacturing difficulty, but also saves transportation costs, and reduces the lifting capacity of the lifting vessel when the platform is installed at sea.

[0004] A technical solution for achieving the object of the present invention is: a rock-socketed construction platform for a group of batter piles, comprising two small platforms and a docking device; wherein,

[0005] Each small platform includes a sinking prevention plate, a second-layer platform, a third-layer platform and a top-layer platform from bottom to top, and further includes four corner auxiliary pile sleeves, four corner auxiliary piles, two middle auxiliary pile sleeves, two middle auxiliary piles, four anti-lifting mechanisms and four lifting seats;

[0006] The sinking prevention plate is in a shape of a Chinese character 'Ri' and is composed of two longitudinal side strips, two transverse side strips and one transverse middle strip; a sleeve installation hole is respectively opened at each of the four corners of the sinking prevention plate and both ends of the transverse middle strip;

[0007] The second-layer platform is a frame in the shape of a Chinese character 'Ri' composed of two main longitudinal rods, two main transverse rods and one middle transverse rod; a sleeve installation ring is respectively provided at each of the four corners of the second-layer platform and both ends of the middle transverse rod;

[0008] The third-layer platform includes a grid-shaped frame composed of a frame in the shape of a Chinese character 'Ri', multiple auxiliary longitudinal rods arranged in the frame in the shape of a Chinese character 'Ri' and multiple auxiliary transverse rods arranged in the frame in the shape of a Chinese character 'Ri'; a sleeve installation ring is also respectively provided at each of the four corners of the third-layer platform and both ends of the middle transverse rod;

[0009] The top platform also includes the grid-shaped frame, steel sections laid on the grid-shaped frame, and patterned steel plates laid on the steel sections. The patterned steel plates are provided with one or more engineering pile introduction holes. The four corners of the top platform and the two ends of the middle crossbar are also provided with sleeve mounting rings.

[0010] The grid-shaped frame of the top platform is connected to the third platform via a plurality of straight braces and a plurality of diagonal braces; the S-shaped frame of the third platform is connected to the second platform via a plurality of pairs of S-shaped diagonal braces; the second platform is connected to the anti-sinking plate via a plurality of X-shaped diagonal braces;

[0011] Four corner auxiliary pile sleeves are inserted into the sleeve mounting rings at the four corners of the top platform, the sleeve mounting rings at the four corners of the third platform, the sleeve mounting rings at the four corners of the second platform, and the sleeve mounting holes at the four corners of the anti-sinking plate in a one-to-one correspondence;

[0012] The four corner auxiliary piles are inserted into the four corner auxiliary pile sleeves one by one;

[0013] The two middle auxiliary pile sleeves are inserted into the sleeve mounting rings at both ends of the middle crossbar of the top platform, the sleeve mounting rings at both ends of the middle crossbar of the third platform, the sleeve mounting rings at both ends of the middle crossbar of the second platform, and the sleeve mounting holes at both ends of the transverse middle slats of the anti-sinking plate in a one-to-one correspondence;

[0014] The two middle auxiliary piles are inserted into the two middle auxiliary pile sleeves in a one-to-one correspondence;

[0015] Four anti-lifting mechanisms are mounted one-to-one between the top surface of the sleeve mounting ring located at the four corners of the top platform and the top outer surfaces of the four corner auxiliary piles; each anti-lifting mechanism includes a plurality of first anti-lifting lug plates evenly distributed around the circumference fixed to the top surface of the sleeve mounting ring, a plurality of second anti-lifting lug plates evenly distributed around the circumference fixed to the top outer surfaces of the corner auxiliary piles and corresponding one-to-one with the plurality of first anti-lifting lug plates, and a plurality of anti-lifting ropes connected one-to-one between the plurality of first anti-lifting lug plates and the plurality of second anti-lifting lug plates;

[0016] Four lifting seats are mounted on the four corners of the top platform in a one-to-one correspondence; each lifting seat comprises a pair of lifting lugs fixed on the top platform and a lifting pin shaft connected between the pair of lifting lugs;

[0017] The docking device is arranged between the joint surfaces of the two small platforms and includes a guide mechanism, a limit mechanism and a joint rod; wherein,

[0018] The guide mechanism includes a guide cylinder and a guide rod; the guide cylinder is fixed to the upper outer surface of the middle auxiliary pile sleeve on the splicing surface of one small platform through a guide cylinder bracket, and the guide pin is fixed to the upper outer surface of the middle auxiliary pile sleeve on the splicing surface side of another small platform through a guide pin bracket opposite to the guide cylinder;

[0019] The limiting mechanism includes two pairs of limiting blocks; one pair of limiting blocks is fixed one-to-one on the outer surface of a corner auxiliary pile sleeve on one side of the splicing surface of the two small platforms, and the other pair of limiting blocks is fixed one-to-one on the outer surface of the other corner auxiliary pile sleeve on the side of the splicing surface of the two small platforms;

[0020] The splicing rods include a plurality of X-shaped splicing rods and a plurality of transverse splicing rods.

[0021] In the rock-embedded construction platform for the above-mentioned inclined pile group, a plurality of water-permeable holes are evenly distributed on the two longitudinal side strips, the two transverse side strips and the one transverse middle strip of the anti-sinking plate.

[0022] The rock-embedded construction platform for the above-mentioned inclined pile group is provided with a safety guardrail on the periphery of the top platform.

[0023] In the above-mentioned rock-embedded construction platform for inclined pile groups, the installation height of the guide mechanism is the same as the height of the third-level platform, and the guide cylinder and the guide pin are each fixed to the middle auxiliary pile sleeve through a connecting bracket.

[0024] The above-mentioned rock-embedded construction platform for inclined pile groups, wherein the guide tube bracket includes the first to fourth layers of annular horizontal ribs fixed on the upper outer surface of the middle auxiliary pile sleeve, a group of upper vertical ribs connected between the fourth layer of annular horizontal ribs and the third layer of annular horizontal ribs, a group of lower vertical ribs connected between the second layer of annular horizontal ribs and the first layer of annular horizontal ribs, a group of upper guide ribs fixed on the top surface of the fourth layer of annular horizontal ribs and a group of lower guide ribs fixed on the bottom surface of the first layer of annular horizontal ribs, the guide tube is fixedly inserted between the first to fourth layers of annular horizontal ribs; the guide pin bracket includes two annular horizontal ribs fixed on the upper outer surface of the middle auxiliary pile sleeve and a vertical rib connected between the two annular horizontal ribs and fixed on the upper outer surface of the middle auxiliary pile sleeve, and the guide pin is fixedly inserted between the two annular horizontal ribs.

[0025] In the rock-embedded construction platform for the above-mentioned inclined pile group, the installation height of the limiting mechanism is the same as the height of the second-layer platform, and each limiting block is in the form of a lying quadrangular platform.

[0026] In the rock-embedded construction platform for the above-mentioned inclined pile group, the connection height of the spliced ​​rods is the same as the height of the third-layer platform.

[0027] Another technical solution for achieving the purpose of the present invention is a method for constructing a rock-embedded construction platform for inclined pile groups, which is used to construct the rock-embedded construction platform for inclined pile groups at sea. The construction method comprises the following steps:

[0028] Step 1: First, insert a corner auxiliary pile into each of the four corner auxiliary pile sleeves on the two small platforms, and temporarily fix the two small platforms to the corresponding four corner auxiliary piles. Insert a middle auxiliary pile into each of the two middle auxiliary pile sleeves on the two small platforms, and temporarily fix the two small platforms to the corresponding two middle auxiliary piles. Then, load the two small platforms onto the transport ship respectively.

[0029] Step 2: First, use the hook of the crane ship to connect with the four lifting seats on the first small platform, and lift the first small platform as a whole from the transport ship to the operating sea area;

[0030] Step 3: First, hoist the first small platform to the designated position on the water surface and then lower it to the seabed. Then, release the temporary fixation between the first small platform and the four corner auxiliary piles and the temporary fixation between the first small platform and the two middle auxiliary piles, allowing the four corner auxiliary piles and the two middle auxiliary piles to sink to the seabed under their own weight.

[0031] Step 4: First, use a vibratory hammer to vibrate and sink one corner auxiliary pile on the first small platform to the set depth on the seabed, and then vibrate and sink the second and third corner auxiliary piles on the first small platform in sequence;

[0032] Step 5: First, use the hook of the crane ship to lift the first small platform to the set height and level it. Then, connect and fix the three corner auxiliary piles that have been vibrated to the set depth to the first small platform through the corresponding anti-lifting mechanism.

[0033] Step 6: First, vibrate and sink the fourth corner auxiliary pile on the first small platform to the set depth on the seabed, and then connect and fix the fourth corner auxiliary pile to the first small platform through the corresponding reverse hanging mechanism;

[0034] Step 7: First, vibrate and sink the two middle auxiliary piles on the first small platform to the set depth on the seabed, and connect and fix each middle auxiliary pile to the first small platform through a number of ribs;

[0035] Step 8: First, use the hook of the crane ship to connect with the four lifting seats on the second small platform, lift the second small platform as a whole from the transport ship to the operating sea area, and then dock the second small platform with the installed first small platform through the guide mechanism and the limit mechanism, while lowering the second small platform to the water surface;

[0036] Step 9: Repeat steps 3 to 7 to install the second small platform;

[0037] Step 10: After the second small platform is installed, weld the connecting rods between the third-layer platforms of the two small platforms to form an integral rock-embedded construction platform.

[0038] The rock-embedded construction platform for inclined pile groups and the construction method thereof of the present invention have the following characteristics:

[0039] 1. When the platform is manufactured, the size and lifting capacity of the gantry crane in the manufacturing plant can be reduced, making it easier to manufacture and lift.

[0040] 2. When transporting the platform, a transport ship with a relatively small main scale can be selected, which solves the problem of difficulty in finding a ship due to the large size of the platform and saves transportation costs.

[0041] 3. When the platform is installed at sea, the lifting capacity of the crane vessel can be reduced; and the use of guide mechanisms and limit mechanisms facilitates the alignment of the two small platforms during installation, solving the problem of difficult alignment during the installation of the two small platforms. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is an elevation view of the rock-embedded construction platform of the inclined pile group of the present invention;

[0043] Figure 2 It is a plan view of the anti-sinking plate in the rock-embedded construction platform of the inclined pile group of the present invention;

[0044] Figure 3 It is a plan view of the second platform in the rock-embedded construction platform of the inclined pile group of the present invention;

[0045] Figure 4 It is a plan view of the third platform in the rock-embedded construction platform of the inclined pile group of the present invention;

[0046] Figure 5 It is a plan view of the top platform in the rock-embedded construction platform of the inclined pile group of the present invention;

[0047] Figure 6 It is an elevation view of the anti-hanging mechanism in the rock-embedded construction platform of the inclined pile group of the present invention;

[0048] Figure 7 It is an elevation view of a lifting seat in a rock-embedded construction platform for an inclined pile group according to the present invention;

[0049] Figure 8a It is a split elevation view of the guide mechanism in the rock-embedded construction platform of the inclined pile group of the present invention;

[0050] Figure 8b yes Figure 8a Top view of . DETAILED DESCRIPTION

[0051] The present invention will be further described below with reference to the accompanying drawings.

[0052] See also Figures 1 to 8b The rock-embedded construction platform of the inclined pile group of the present invention includes two small platforms 100 and a docking device.

[0053] Each small platform 100 includes, from bottom to top, an anti-sinking plate 1, a second-layer platform 2, a third-layer platform 3, and a top-layer platform 4, as well as four corner auxiliary pile sleeves 51, four corner auxiliary piles 5A, two middle auxiliary pile sleeves 52, two middle auxiliary piles 5B, four anti-hanging mechanisms 6, and four lifting seats 7 (see FIG. Figure 1 ).

[0054] The anti-sinking plate 1 is in the shape of a Japanese character and is composed of two longitudinal side strips, two transverse side strips and a transverse middle strip; a plurality of water-permeable holes are evenly distributed on the two longitudinal side strips, the two transverse side strips and the transverse middle strip; a sleeve mounting hole is respectively provided at the four corners of the anti-sinking plate 1 and the two ends of the transverse middle strip (see FIG. Figure 1 and Figure 2 ).

[0055] The second-layer platform 2 is a Japanese-shaped frame consisting of two main longitudinal rods, two main transverse rods and a middle transverse rod; the four corners of the second-layer platform 2 and the two ends of the middle transverse rod are respectively provided with sleeve mounting rings 10 (see FIG. Figure 1 and Figure 3 ).

[0056] The third-layer platform 3 comprises a grid-shaped frame consisting of a spherical frame, a plurality of auxiliary longitudinal rods arranged in the spherical frame, and a plurality of auxiliary transverse rods arranged in the spherical frame. The four corners of the third-layer platform 3 and the two ends of the middle transverse rod are also provided with sleeve mounting rings 10 (see FIG. Figure 1 and Figure 4 ).

[0057] The top platform 4 also includes a grid-shaped frame, a plurality of steel sections laid on the grid-shaped frame in the longitudinal and transverse directions, and a patterned steel plate laid on the steel sections; the four corners of the top platform 4 and the two ends of the middle crossbar are also provided with sleeve mounting rings 10; a plurality of engineering pile introduction holes are opened on the patterned steel plate of the top platform 4; the top platform 4 is also equipped with crawler cranes 200, rotary drilling rigs 300, inclined pile sinking limit frames 40 and containers 500; the outer periphery of the top platform 4 is provided with safety guardrails 40 (see Figure 1 and Figure 5 ).

[0058] The grid-shaped frame of the top platform 4 is connected to the third platform 3 by a plurality of straight braces 41 and a plurality of diagonal braces 42; the sun-shaped frame of the third platform 3 is connected to the second platform 2 by a plurality of pairs of figure-eight diagonal braces 30; the second platform 2 is connected to the anti-sinking plate 1 by a plurality of X-shaped diagonal braces 20 (see FIG. Figure 1 ).

[0059] The four corner auxiliary pile sleeves 51 are inserted into the sleeve mounting rings at the four corners of the top platform 4, the sleeve mounting rings 10 at the four corners of the third platform 3, the sleeve mounting rings 10 at the four corners of the second platform 2 and the sleeve mounting holes at the four corners of the anti-sinking plate 1, one by one.

[0060] The four corner auxiliary piles 5A are inserted into the four corner auxiliary pile sleeves 51 in a one-to-one correspondence.

[0061] The two middle auxiliary pile sleeves 52 are inserted into the sleeve mounting rings 10 at both ends of the middle cross bar of the top platform 4, the sleeve mounting rings 10 at both ends of the middle cross bar of the third platform 3, the sleeve mounting rings 10 at both ends of the middle cross bar of the second platform 2, and the sleeve mounting holes at both ends of the transverse middle slats of the anti-sinking plate 1, one by one.

[0062] The two middle auxiliary piles 5B are inserted into the two middle auxiliary pile sleeves 52 in a one-to-one correspondence.

[0063] The four anti-lifting mechanisms 6 are mounted one-to-one between the top surface of the sleeve mounting ring 10 located at the four corners of the top platform 4 and the top outer surfaces of the four corner auxiliary piles 5A; each anti-lifting mechanism 6 includes four first anti-lifting lug plates 61 fixed on the top surface of the sleeve mounting ring 10 evenly distributed around the circumference, four second anti-lifting lug plates 62 fixed on the top outer surfaces of the corner auxiliary piles 5A evenly distributed around the circumference and corresponding to the four first anti-lifting lug plates 61, and four anti-lifting ropes 63 connected between the four first anti-lifting lug plates 61 and the four second anti-lifting lug plates 62 one-to-one (see FIG. Figure 6 ).

[0064] Four lifting seats 7 are mounted on the four corners of the top platform 4 in a one-to-one correspondence; each lifting seat 7 comprises a pair of lifting lugs 71 fixed on the top platform 4 and a lifting pin 72 connected between the pair of lifting lugs 71; a plurality of ribs 73 (see FIG. 1 ) are fixed between the outer side of each lifting lug 71 and the patterned steel plate of the top platform 4. Figure 7 ).

[0065] The docking device is provided between the joint surfaces of the two small platforms 100 and includes a guide mechanism 8A, a limit mechanism and a joint rod; wherein,

[0066] The installation height of the guide mechanism 8A is the same as that of the third-layer platform 3. The guide mechanism 8A includes a guide cylinder 81 and a guide rod 82. The guide cylinder 81 is a C-shaped cylinder and is fixed to the upper outer surface of the middle auxiliary pile sleeve 52 of the splicing surface of a small platform 100 through a guide cylinder bracket. The guide pin 82 is fixed to the upper outer surface of the middle auxiliary pile sleeve 52 on one side of the splicing surface of another small platform 100 relative to the guide cylinder 81 through a guide pin bracket. The guide cylinder bracket includes the first to fourth layers of annular horizontal ribs 811 to 814 fixed on the upper outer surface of the middle auxiliary pile sleeve 52, a group of upper vertical ribs 815 connected between the fourth layer of annular horizontal ribs 814 and the third layer of annular horizontal ribs 813, and a group of connecting The lower vertical ribs 816 between the second layer of annular horizontal ribs 812 and the first layer of annular horizontal ribs 811, a group of upper guide ribs 817 fixed on the top surface of the fourth layer of annular horizontal ribs 814 and a group of lower guide ribs 818 fixed on the bottom surface of the first layer of annular horizontal ribs 811, the guide cylinder 81 is fixedly inserted between the first to fourth layers of annular horizontal ribs 811 to 814; the guide pin bracket includes two annular horizontal ribs 821 fixed on the upper outer surface of the middle auxiliary pile sleeve 52 and a vertical rib 822 connected between the two annular horizontal ribs 821 and fixed on the upper outer surface of the middle auxiliary pile sleeve 52, the guide pin 82 is fixedly inserted between the two annular horizontal ribs 821 (see Figure 8a and Figure 8b );

[0067] The installation height of the limiting mechanism is the same as the height of the second-layer platform 2. The limiting mechanism includes two pairs of limiting blocks 83; one pair of limiting blocks 83 is fixed one-to-one on the outer surface of a corner auxiliary pile sleeve 51 on one side of the splicing surface of the two small platforms 100, and the other pair of limiting blocks 83 is fixed one-to-one on the outer surface of the other corner auxiliary pile sleeve 51 on one side of the splicing surface of the two small platforms 100. Each limiting block 83 is a lying square pyramid (see Figure 3 );

[0068] The connection height of the splicing rods is the same as the height of the third-layer platform 3; the splicing rods include horizontal X-shaped splicing rods 84 and transverse splicing rods 85 (see Figure 4 ).

[0069] The method for constructing a rock-embedded construction platform for an inclined pile group of the present invention is used to construct the rock-embedded construction platform for an inclined pile group of the present invention at sea and comprises the following steps:

[0070] Step 1: Insert one corner auxiliary pile 5 into each of the four corner auxiliary pile sleeves 51 on the two small platforms 100, and temporarily fix the two small platforms 100 to the corresponding four corner auxiliary piles 5A; insert one middle auxiliary pile 5B into each of the two middle auxiliary pile sleeves 52 on the two small platforms 100, and temporarily fix the two small platforms 100 to the corresponding two middle auxiliary piles 5B, and then load the two small platforms 100 onto the transport ship respectively;

[0071] Step 2: First, use the hook of the crane ship to connect with the four lifting seats 7 on the first small platform 100, and lift the first small platform 100 from the transport ship to the water surface of the operating sea area;

[0072] Step 3: The crane vessel first lifts the first small platform to the designated position on the water surface and then lowers it to the seabed. The temporary fixings between the first small platform 100 and the four corner auxiliary piles 5A and the two middle auxiliary piles 5B are then released, allowing the four corner auxiliary piles 5A and the two middle auxiliary piles 5B to sink to the seabed under their own weight.

[0073] Step 4: First, use a vibratory hammer to vibrate and sink one corner auxiliary pile 5A on the first small platform 100 to the set depth on the seabed. Then, vibrate and sink the second and third corner auxiliary piles 5A on the first small platform 100 to the set depth on the seabed in sequence. The second corner auxiliary pile 5A is preferably arranged diagonally to the first corner auxiliary pile 5A that has been vibrated and sunk to the set depth.

[0074] Step 5: First, use the hook of the crane ship to lift the first small platform 100 to the set height and level it. Then, connect and fix the three corner auxiliary piles 5A that have been vibrated to the set depth on the seabed to the first small platform 100 through the corresponding reverse lifting mechanism 6.

[0075] Step 6: First, vibrate and sink the fourth corner auxiliary pile 5A on the first small platform 100 to the set depth on the seabed, and then connect and fix the fourth corner auxiliary pile 5A to the first small platform 100 through the corresponding reverse hanging mechanism 6;

[0076] Step 7: First, vibrate and sink the two middle auxiliary piles 5B on the first small platform 100 to the set depth on the seabed, and connect and fix each middle auxiliary pile 5B to the first small platform 100 through a plurality of ribs;

[0077] Step 8: First, use the crane hook to connect with the four lifting seats 7 on the second small platform 100, and lift the second small platform 100 from the transport ship to the operating sea area. Then, while docking the second small platform 100 with the installed first small platform 100 through the guide mechanism 8A and the limit mechanism, lower the second small platform 100 to the water surface;

[0078] Step 9, repeat steps 3 to 7 to install the second small platform 100;

[0079] Step 10: After the second small platform 100 is installed, the connecting rods are welded between the third platforms 3 of the two small platforms 100 to form an integral rock-embedded construction platform.

[0080] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those skilled in the art may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention and should be defined by the claims.

Claims

1. An in - rock construction platform for a group of inclined piles, comprising two small platforms and a docking device; characterized in that, Each small platform includes a sinking prevention plate, a second - layer platform, a third - layer platform and a top - layer platform from bottom to top, and also includes four corner auxiliary pile sleeves, four corner auxiliary piles, two middle auxiliary pile sleeves, two middle auxiliary piles, four anti - lifting mechanisms and four lifting seats; The sinking prevention plate is in a "day" shape and is composed of two longitudinal side strips, two transverse side strips and one transverse middle strip; a sleeve installation hole is respectively opened at each of the four corners of the sinking prevention plate and at both ends of the transverse middle strip; The second - layer platform is a "day" - shaped frame composed of two main longitudinal rods, two main transverse rods and one middle transverse rod; a sleeve installation ring is respectively provided at each of the four corners of the second - layer platform and at both ends of the middle transverse rod; The third - layer platform includes a grid - shaped frame composed of a "day" - shaped frame, multiple auxiliary longitudinal rods arranged within the "day" - shaped frame and multiple auxiliary transverse rods arranged within the "day" - shaped frame; a sleeve installation ring is also respectively provided at each of the four corners of the third - layer platform and at both ends of the middle transverse rod; The top - layer platform also includes the grid - shaped frame, profiled steel laid on the grid - shaped frame and checkered steel plates laid on the profiled steel; multiple pile guiding holes are opened on the checkered steel plates; a sleeve installation ring is also respectively provided at each of the four corners of the top - layer platform and at both ends of the middle transverse rod; The grid - shaped frame of the top - layer platform is connected to the third - layer platform through multiple straight struts and multiple inclined struts; the "day" - shaped frame of the third - layer platform is connected to the second - layer platform through several pairs of inverted - V - shaped inclined struts; the second - layer platform is connected to the sinking prevention plate through several X - shaped inclined struts; Four corner auxiliary pile sleeves are inserted one - to - one into the sleeve installation rings at the four corners of the top - layer platform, the sleeve installation rings at the four corners of the third - layer platform, the sleeve installation rings at the four corners of the second - layer platform, and the sleeve installation holes at the four corners of the sinking prevention plate; Four corner auxiliary piles are inserted one - to - one into the four corner auxiliary pile sleeves; Two middle auxiliary pile sleeves are inserted one - to - one into the sleeve installation rings at both ends of the middle transverse rod of the top - layer platform, the sleeve installation rings at both ends of the middle transverse rod of the third - layer platform, the sleeve installation rings at both ends of the middle transverse rod of the second - layer platform, and the sleeve installation holes at both ends of the transverse middle strip of the sinking prevention plate; Two middle auxiliary piles are inserted one - to - one into the two middle auxiliary pile sleeves; Four anti - lifting mechanisms are installed one - to - one between the top surface of the sleeve installation rings at the four corners of the top - layer platform and the outer surfaces of the tops of the four corner auxiliary piles; each anti - lifting mechanism includes several first anti - lifting ear plates fixedly arranged circumferentially on the top surface of the sleeve installation ring, several second anti - lifting ear plates fixedly arranged circumferentially on the outer surface of the top of the corner auxiliary pile and corresponding one - to - one to the several first anti - lifting ear plates, and several anti - lifting cables correspondingly connected between the several first anti - lifting ear plates and the several second anti - lifting ear plates; Four lifting seats are installed one - to - one at the four corners of the top - layer platform; each lifting seat includes a pair of lifting ear plates fixed on the top - layer platform and a lifting shaft connected between the pair of lifting ear plates; The docking device is arranged between the joint surfaces of the two small platforms and includes a guide mechanism, a limit mechanism and a joint rod; wherein, The guide mechanism includes a guide cylinder and a guide pin; the guide cylinder is fixed to the upper outer surface of the middle auxiliary pile sleeve on the splicing surface of one small platform through a guide cylinder bracket, and the guide pin is fixed to the upper outer surface of the middle auxiliary pile sleeve on the splicing surface side of another small platform through a guide pin bracket opposite to the guide cylinder; The limiting mechanism includes two pairs of limiting blocks; one pair of limiting blocks is fixed one-to-one on the outer surface of a corner auxiliary pile sleeve on one side of the splicing surface of the two small platforms, and the other pair of limiting blocks is fixed one-to-one on the outer surface of the other corner auxiliary pile sleeve on the side of the splicing surface of the two small platforms; The splicing rods include a plurality of horizontal X-shaped splicing rods and a plurality of transverse splicing rods.

2. The rock-embedded construction platform for inclined pile groups according to claim 1, characterized in that: A plurality of water-permeable holes are evenly distributed on the two longitudinal side strips, the two transverse side strips and the one transverse middle strip of the anti-sinking plate.

3. The rock-embedded construction platform for inclined pile groups according to claim 1, characterized in that: A safety guardrail is provided on the periphery of the top platform.

4. The rock-embedded construction platform for inclined pile groups according to claim 1, characterized in that: The installation height of the guide mechanism is the same as the height of the third-layer platform, and the guide cylinder and the guide pin are respectively fixed to the middle auxiliary pile sleeve through a connecting bracket.

5. The rock-embedded construction platform for inclined pile groups according to claim 1, characterized in that: The guide cylinder bracket includes the first to fourth layers of annular horizontal ribs fixed on the upper outer surface of the middle auxiliary pile sleeve, a group of upper vertical ribs connected between the fourth layer of annular horizontal ribs and the third layer of annular horizontal ribs, a group of lower vertical ribs connected between the second layer of annular horizontal ribs and the first layer of annular horizontal ribs, a group of upper guide ribs fixed on the top surface of the fourth layer of annular horizontal ribs and a group of lower guide ribs fixed on the bottom surface of the first layer of annular horizontal ribs, and the guide cylinder is fixedly inserted between the first to fourth layers of annular horizontal ribs; The guide pin bracket includes two annular horizontal ribs fixed on the upper outer surface of the middle auxiliary pile sleeve and a vertical rib connected between the two annular horizontal ribs and fixed on the upper outer surface of the middle auxiliary pile sleeve. The guide pin is fixedly inserted between the two annular horizontal ribs.

6. The rock-embedded construction platform for inclined pile groups according to claim 1, characterized in that: The installation height of the limiting mechanism is the same as the height of the second-layer platform, and each limiting block is in the form of a lying quadrangular platform.

7. The rock-embedded construction platform for inclined pile groups according to claim 1, characterized in that: The connection height of the splicing rods is the same as the height of the third-layer platform.

8. A method for constructing a rock-embedded construction platform for inclined pile groups, for constructing the rock-embedded construction platform for inclined pile groups as claimed in claim 1 at sea, the method comprising the following steps: Step 1: First, insert a corner auxiliary pile into each of the four corner auxiliary pile sleeves on the two small platforms, and temporarily fix the two small platforms to the corresponding four corner auxiliary piles. Insert a middle auxiliary pile into each of the two middle auxiliary pile sleeves on the two small platforms, and temporarily fix the two small platforms to the corresponding two middle auxiliary piles. Then, load the two small platforms onto the transport ship respectively. Step 2: First, use the hook of the crane ship to connect with the four lifting seats on the first small platform, and lift the first small platform as a whole from the transport ship to the operating sea area; Step 3: First, hoist the first small platform to the designated position on the water surface and then lower it to the seabed. Then, release the temporary fixation between the first small platform and the four corner auxiliary piles and the temporary fixation between the first small platform and the two middle auxiliary piles, allowing the four corner auxiliary piles and the two middle auxiliary piles to sink to the seabed under their own weight. Step 4: First, use a vibratory hammer to vibrate and sink one corner auxiliary pile on the first small platform to the set depth on the seabed, and then vibrate and sink the second and third corner auxiliary piles on the first small platform in sequence; Step 5: First, use the hook of the crane ship to lift the first small platform to the set height and level it. Then, connect and fix the three corner auxiliary piles that have been vibrated to the set depth to the first small platform through the corresponding anti-lifting mechanism. Step 6: First, vibrate and sink the fourth corner auxiliary pile on the first small platform to the set depth on the seabed, and then connect and fix the fourth corner auxiliary pile to the first small platform through the corresponding reverse hanging mechanism; Step 7: First, vibrate and sink the two middle auxiliary piles on the first small platform to the set depth on the seabed, and connect and fix each middle auxiliary pile to the first small platform through a number of ribs; Step 8: First, use the hook of the crane ship to connect with the four lifting seats on the second small platform, lift the second small platform as a whole from the transport ship to the operating sea area, and then dock the second small platform with the installed first small platform through the guide mechanism and the limit mechanism, while lowering the second small platform to the water surface; Step 9: Repeat steps 3 to 7 to install the second small platform; Step 10: After the second small platform is installed, weld the connecting rods between the third-layer platforms of the two small platforms to form an integral rock-embedded construction platform.

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