CN212222218U - Single-point hoisting pile erecting system - Google Patents

Abstract

The utility model provides a single-point lifts by crane grudging post system belongs to marine wind power pile foundation construction technical field, and the single-point that has realized marine wind power pile lifts by crane the grudging post. The single-point lifting pile erecting system comprises a crane, a guide frame, a pile turning device, a clamping block and a lifting point, wherein the clamping block and the lifting point are arranged on a pile body; the fixture block and the lifting point are respectively arranged close to the two axial ends of the pile body, and the fixture block is positioned on the lower side surface of the pile body when the pile body is horizontally placed; the hoisting cable of the crane is connected with the hoisting point; the guide frame is fixedly supported on the seabed at the position of the pile to be erected, the guide frame is positioned below one end, provided with the clamping block, of the pile body when the pile body is horizontally placed, and one side, away from the lifting point, of the guide frame is provided with a U-shaped opening for turning the pile body in and limiting the upright position of the pile body; the pile turning device is installed on one side, deviating from the U-shaped opening, of the top of the guide frame, the pile turning device turns towards the direction of the U-shaped opening, the pile turning device supports the lower side face of the pile body when the pile body is placed horizontally, and one side, close to the lifting point, of the pile turning device is abutted to one side, deviating from the lifting point, of the fixture block.

Description

Single-point hoisting pile erecting system

Technical Field

The utility model belongs to the technical field of offshore wind power pile foundation construction, especially, relate to a single-point lifts by crane stake system.

Background

The pile weight of the wind power pile is usually 600-1200t, and at present, in the offshore wind power pile foundation construction, the pile is usually erected in a two-point hoisting mode. In some projects, two lifting hooks are arranged on a single crane ship to lift and erect the wind power pile, each lifting hook is required to meet important requirements of the pile, and the pile erecting mode has high requirements on the lifting weight of the single crane ship, high cost of the crane ship and high construction cost. In other projects, the hoisting points on both sides of the wind power pile are hoisted by two crane ships respectively, wherein one crane ship is used as a main crane ship to mainly bear the pile weight, and the other crane ship is used for assisting pile erecting, however, the pile erecting mode needs two crane ships, the construction cost is high, and the occupied sea area is large. In addition to the two-point pile lifting mode, other projects are constructed by matching a full-circle slewing crane with a pile turning device, wherein the full-circle slewing crane mainly bears the weight of a pile, and the pile turning device is used for assisting pile erection. If the pile turning device is not provided with a pushing part, the horizontal force of at least 200 and 300t needs to be overcome to realize single-point pile lifting, and the requirements cannot be met by the conventional ship anchoring system.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the aforesaid that exists when constructing to current wind-powered electricity generation stake is not enough, provides a single-point lifts by crane stake system, has realized that the single-point of offshore wind-powered electricity generation stake lifts by crane the stake, and the construction is convenient, with low costs.

In order to achieve the above object, the utility model discloses a technical scheme be:

the single-point pile lifting and erecting system comprises a crane, a guide frame, a pile turning device, a clamping block and a lifting point, wherein the clamping block and the lifting point are arranged on a pile body; the fixture block and the lifting point are respectively arranged close to the two axial ends of the pile body, and the fixture block is positioned on the lower side surface of the pile body when the pile body is horizontally placed; the hoisting cable of the crane is connected with the hoisting point; the guide frame is fixedly supported on the seabed at the position of a pile to be erected, the guide frame is positioned below one end, provided with the clamping block, of the pile body when the pile body is placed horizontally, a U-shaped opening for the pile body to be turned into and limiting the upright position of the pile body is formed in one side, away from the lifting point, of the guide frame, the U-shaped opening is communicated along the vertical direction, the size of the opening of the U-shaped opening is larger than the diameter of the pile body, and the symmetrical plane of the U-shaped opening and the axis of the pile body are positioned in the same vertical plane; the leading truck top deviates from U type open-ended side-mounting turn over the stake ware, turn over the stake ware and be located U type open-ended edge, just turn over the stake ware orientation U type open-ended direction upset, turn over the stake ware and hold downside when the pile body level is placed, turn over the stake ware and be close to one side of hoisting point with the fixture block deviates from one side of hoisting point offsets.

Preferably, the pile driver comprises a base and a bracket, wherein the base is fixedly connected to the guide frame, and the bracket comprises a hinge part hinged to the base and a supporting plate fixedly connected to the hinge part; articulated portion of bracket and the articulated shaft of base set up along the horizontal direction and with axis when pile body level was placed is mutually perpendicular, downside when layer board and pile body level were placed is laminated mutually in order to hold the pile body, the layer board is close to one side of hoisting point with the fixture block deviates from one side of hoisting point offsets.

Preferably, the thickness of the supporting plate is greater than or equal to that of the fixture block.

Preferably, the guide frame is supported on the seabed at the position of the pile to be erected through a plurality of fixing piles, the fixing piles are uniformly distributed on the periphery of the guide frame, the top end of each fixing pile is fixedly connected with the guide frame, and the bottom end of each fixing pile is inserted into the seabed.

Preferably, the guide frame comprises a guide platform and a support platform which are arranged in parallel from top to bottom, the guide platform and the support platform are fixedly connected through a plurality of inclined struts, the U-shaped opening is formed in one side of the guide platform, the part, below the U-shaped opening, of the support platform is hollowed out, an opening communicated with the hollowed-out part is formed in the edge of one side of the support platform, the opening and the U-shaped opening are located on the same side, and the opening size of the opening is larger than or equal to that of the U-shaped opening.

Preferably, supporting platform's bottom periphery is equipped with many landing legs, many the landing leg equipartition in supporting platform's bottom periphery, every a fixed sleeve is connected to the bottom of landing leg, the spud pile wears to locate in the fixed sleeve, just the top fixed connection of spud pile in the fixed sleeve.

Preferably, a plurality of jacks are arranged at the edge of the U-shaped opening of the guide frame to hold the upright pile body, and the jacks are uniformly distributed at the edge of the U-shaped opening.

Preferably, the single-point hoisting pile erecting system further comprises a ship for horizontally placing the pile body.

Compared with the prior art, the utility model discloses an advantage and beneficial effect lie in:

1. the utility model provides a single-point pile lifting system lifts by crane a hoisting point on the pile body, in the pile body lifting process, the pile turning device that the leading truck top set up overturns along with the pile body in the lump, and the pile turning device withstands the fixture block that sets up on the pile body all the time, and then utilize the fixed holding power of leading truck to overcome the horizontal effort when the pile body single-point lifts by crane, has realized the marine single-point pile lifting, and the construction is convenient, is particularly suitable for marine wind power pile foundation construction;

2. the single-point hoisting pile erecting system provided by the utility model has low hoisting requirement on the crane, can meet the hoisting requirement by adopting a common derrick mast crane, and has low equipment cost and construction cost;

3. the utility model provides an among the single-point lifts by crane pile system, turn over the stake ware and along with the pile body upset, turn over the stake ware and need not to set up the promotion part that is used for promoting the pile body upset, equipment cost is low, and construction cost is low.

Drawings

Fig. 1 is a schematic structural diagram of a single-point hoisting pile erecting system provided in an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a front view of a guide frame provided with a pile driver according to an embodiment of the present invention;

fig. 4 is a top view of the guide frame provided with the pile driver according to the embodiment of the present invention;

fig. 5 is a construction flow chart of a single-point hoisting pile erecting system provided by the embodiment of the present invention;

in the above figures: 1. a pile body; 2. a crane; 3. hoisting points; 4. a guide frame; 41. a guide platform; 42. bracing; 43. a support platform; 44. a support leg; 45. fixing the sleeve; 5. fixing the pile; 6. a vessel; 7. pile turning devices; 71. a base; 72. a bracket; 721. a hinge portion; 722. a support plate; 8. a clamping block; 9. a jack.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "top", "bottom", etc. indicate the positional relationship based on the positional relationship shown in fig. 1, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

As shown in fig. 1-4, an embodiment of the present invention relates to a single-point pile lifting system, which includes a crane 2, a guide frame 4, a pile turning device 7, a fixture block 8 and a lifting point 3, which are arranged on a pile body 1; the fixture block 8 and the hoisting point 3 are respectively arranged close to the two axial ends of the pile body 1, and the fixture block 8 is positioned on the lower side surface of the pile body 1 when the pile body is horizontally placed; the hoisting cable of the crane 2 is connected with the hoisting point 3; the guide frame 4 is fixedly supported on the seabed at the position of a pile to be erected, the guide frame 4 is positioned below one end, provided with a clamping block 8, of the pile body 1 when the pile body 1 is placed horizontally, a U-shaped opening for turning the pile body 1 in and limiting the upright position of the pile body 1 is formed in one side, away from the lifting point 3, of the guide frame 4, the U-shaped opening is communicated along the vertical direction, the opening size of the U-shaped opening is larger than the diameter of the pile body 1, the opening direction of the U-shaped opening faces to one side, away from the lifting point 3, and the symmetrical surface of the U-shaped opening and the axis of the pile body 1 are positioned in the same; pile ware 7 is turned over in the installation of leading truck 4 top deviating from one side of U type open-ended (U type open-ended opening orientation deviates from the direction of turning over pile ware 7 promptly), turns over pile ware 7 and is located U type open-ended edge, and turns over pile ware 7 and overturn towards U type open-ended direction, turns over the downside when pile ware 7 holds pile body 1 level and places, turns over one side that pile ware 7 is close to hoisting point 3 and offsets with one side that fixture block 8 deviates from hoisting point 3.

Above-mentioned single-point lifts by crane found pile system lifts by crane a hoisting point 3 on the pile body 1 through a hoist 2, at pile body 1 lift by crane in-process, the pile ware 7 that turns over that the leading truck 4 top set up overturns along with pile body 1 in the lump, and turns over the fixture block 8 that pile ware 7 withstood setting on the pile body 1 all the time, and then utilize the fixed holding power of leading truck 4 to overcome the horizontal effort when pile body 1 single-point lifts by crane, realized that marine single-point lifts by crane found the stake, it is convenient to be under construction, be particularly suitable for marine wind power pile foundation construction. Moreover, the single-point hoisting pile erecting system has low hoisting requirement on the crane 2, can meet the hoisting requirement by adopting a common derrick mast crane, and has low equipment cost and construction cost. Meanwhile, in the single-point lifting pile erecting system, the pile turning device 7 turns over along with the pile body 1, the pile turning device 7 does not need to be provided with a pushing component for pushing the pile body to turn over, the equipment cost is low, and the construction cost is low.

In the single-point hoisting pile erecting system, the pile turning device 7 is used for assisting the pile body 1 to turn over. As shown in fig. 2 and 3, in the present embodiment, the pile driver 7 includes a base 71 and a bracket 72, the base 71 is fixedly connected to the guide frame 4, the bracket 72 includes a hinged portion 721 hinged to the base 71, and a supporting plate 722 fixedly connected to the hinged portion 721; the hinge portion 721 of the bracket 72 and the hinge shaft of the base 71 are arranged along the horizontal direction and are perpendicular to the central axis of the pile body 1 when horizontally placed, the supporting plate 722 is attached to the lower side surface of the pile body 1 when horizontally placed so as to support the pile body 1, and one side of the supporting plate 722 close to the hanging point 3 is abutted to one side of the fixture block 8 departing from the hanging point 3. The pile turning device 7 adopted in the embodiment has the advantages of simple structure, small volume and low manufacturing cost, and is convenient to install on the guide frame 4.

When the pile turning device 7 is adopted, the supporting plate 722 always supports the clamping block 8 arranged on the pile body 1 in the pile erecting process. In order to prevent the support plate 722 and the fixture block 8 from being separated from each other during the pile erecting process, it is preferable that the thickness of the support plate 722 is greater than or equal to the thickness of the fixture block 8.

In the single-point hoisting pile erecting system, the guide frame 4 is used for guiding the falling direction of the upright pile body 1, and meanwhile, the fixed supporting force of the guide frame 4 is used for offsetting the horizontal acting force of the pile body 1 during single-point hoisting. As shown in fig. 3 and 4, in this embodiment, the guide frame 4 includes a guide platform 41 and a support platform 43 that are arranged in an up-and-down parallel manner, the guide platform 41 and the support platform 43 are fixedly connected through a plurality of inclined struts 42, one side of the guide platform 41 is opened with a U-shaped opening, a part of the support platform 43 that is located below the U-shaped opening is hollowed, a side edge of the support platform 43 is provided with an opening that is communicated with the hollowed-out part, the opening and the U-shaped opening are located on the same side, an opening size of the opening is greater than or equal to an opening size of the U-shaped opening, a plurality of support legs 44 are arranged on the bottom periphery of the support platform 43, and the plurality of support legs 44 are. It will be appreciated that other configurations of the guide frame 4 may be used by those skilled in the art, as long as the guide frame 4 is provided with a U-shaped opening and facilitates the installation of the pile driver 7 at the edge of the U-shaped opening.

In order to ensure that the guide frame 4 can be stably supported on the seabed so as to provide enough supporting force to resist the horizontal acting force generated in the hoisting process of the pile body 1, as shown in fig. 1 and 4, the guide frame 4 is supported on the seabed at the position of the pile to be erected through a plurality of fixing piles 5, the fixing piles 5 are uniformly distributed on the periphery of the guide frame 4, the top end of each fixing pile 5 is fixedly connected with the guide frame 4, and the bottom end of each fixing pile 5 is inserted into the seabed. In this embodiment, the specific connection mode of the guide frame 4 and the fixing pile 5 is as follows: the bottom periphery of leading truck 4 is connected with a plurality of fixing sleeve 45 (specifically, fixing sleeve 45 fixed connection is in the landing leg 44 bottom of leading truck 4, and every landing leg 44 connects a fixing sleeve 45), and spud pile 5 wears to locate in fixing sleeve 45, and the top fixed connection (for example welding etc.) of spud pile 5 in fixing sleeve 45.

In order to better limit the falling direction of the upright pile body 1, as shown in fig. 4, a plurality of jacks 9 are arranged at the edge of the U-shaped opening of the guide frame 4 to hold the upright pile body 1, and the plurality of jacks 9 are uniformly distributed at the edge of the U-shaped opening. In this embodiment, the jack 9 is embedded in the inner wall of the U-shaped opening of the guide platform 41 of the guide frame 4, and the jack 9 is always in a contracted state during the lifting and turning process of the pile body 1, so as to prevent the pile body 1 from being affected by the turning process.

Further, as shown in fig. 1, the single-point hoisting pile erecting system further includes a ship 6 for horizontally placing the pile body 1, and the pile body 1 is carried by the ship 6, so that the pile body 1 is conveniently transported, and the position of the pile body 1 is conveniently adjusted.

As shown in fig. 5, the method for single-point hoisting and pile erecting construction by using the single-point hoisting and pile erecting system includes the following steps:

s1 fixing the guide: the guide frame 4 is fixedly supported on the seabed at the position where the pile is to be erected;

s2, mounting hanging points and fixture blocks: installing a fixture block 8 and a lifting point 3 on the pile body 1, wherein the fixture block 8 and the lifting point 3 are respectively installed close to the two axial ends of the pile body 1;

s3 pile body is horizontally positioned: horizontally placing the pile body 1, and moving the pile body 1 to enable the pile body 1 to be horizontally positioned; when the pile body 1 is horizontally positioned, one end of the pile body 1, which is provided with the fixture block 8, is positioned on the pile turning device 7 at the top of the guide frame 4, the axis of the pile body 1 and the symmetry plane of the U-shaped opening of the guide frame 4 are positioned in the same vertical plane, and one side of the pile turning device 7, which is close to the lifting point 3, is abutted against one side of the fixture block 8, which is far away from the lifting point 3;

s4 hoisting: moving the crane 2 to a construction site, hanging a hoisting cable of the crane 2 on a hoisting point 3 of the pile body 1, hoisting the pile body 1 by using the crane 2, and turning the pile body 1 into a U-shaped opening of a guide frame 4 until the pile body 1 is upright; in the hoisting process of the pile body 1, the pile turning device 7 always supports against a clamping block 8 on the pile body 1 to offset the horizontal acting force in the hoisting process of the pile body 1, and the pile turning device 7 turns along with the pile body 1;

s5 pile dropping: hoisting the pile body 1 upwards by using the crane 2, separating a clamping block 8 on the pile body 1 from the pile turning device 7, removing the clamping block 8, and lowering the pile body 1 by using the crane 2 to vertically drop the pile body 1 to a position to be erected; in the process of lowering the pile body 1, the lowering direction of the pile body 1 is guided through the U-shaped opening of the guide frame 4.

In the construction method of the single-point hoisting vertical pile, the specific steps of fixing the guide frame 4 are as follows: and (3) driving a plurality of fixing piles 5 around the position of the pile to be erected on the seabed, installing the guide frame 4 among the fixing piles 5, and enabling the U-shaped opening of the guide frame 4 to be positioned right above the position of the pile to be erected.

In the single-point hoisting pile erecting construction method, in the pile body horizontal positioning step, the pile body 1 is horizontally placed on the ship 6, one end of the pile body 1, provided with the fixture block 8, is suspended on the ship 6, and the pile body 1 is moved by the ship 6 so that the pile body 1 is horizontally positioned.

In the single-point hoisting pile erecting construction method, before the pile body 1 is lowered by the crane 2 in the pile lowering step, the method further comprises the step of extending a plurality of jacks 9 in the U-shaped opening to hold the pile body 1.

Claims (8)

1. Single-point lifts by crane stake system, its characterized in that: comprises a crane, a guide frame, a pile turning device, a clamping block and a lifting point which are arranged on a pile body; the fixture block and the lifting point are respectively arranged close to the two axial ends of the pile body, and the fixture block is positioned on the lower side surface of the pile body when the pile body is horizontally placed; the hoisting cable of the crane is connected with the hoisting point; the guide frame is fixedly supported on the seabed at the position of a pile to be erected, the guide frame is positioned below one end, provided with the clamping block, of the pile body when the pile body is placed horizontally, a U-shaped opening for the pile body to be turned into and limiting the upright position of the pile body is formed in one side, away from the lifting point, of the guide frame, the U-shaped opening is communicated along the vertical direction, the size of the opening of the U-shaped opening is larger than the diameter of the pile body, and the symmetrical plane of the U-shaped opening and the axis of the pile body are positioned in the same vertical plane; the leading truck top deviates from U type open-ended side-mounting turn over the stake ware, turn over the stake ware and be located U type open-ended edge, just turn over the stake ware orientation U type open-ended direction upset, turn over the stake ware and hold downside when the pile body level is placed, turn over the stake ware and be close to one side of hoisting point with the fixture block deviates from one side of hoisting point offsets.

2. The single point lift pile system of claim 1, wherein: the pile turning device comprises a base and a bracket, wherein the base is fixedly connected to the guide frame, and the bracket comprises a hinged part hinged to the base and a supporting plate fixedly connected to the hinged part; articulated portion of bracket and the articulated shaft of base set up along the horizontal direction and with axis when pile body level was placed is mutually perpendicular, downside when layer board and pile body level were placed is laminated mutually in order to hold the pile body, the layer board is close to one side of hoisting point with the fixture block deviates from one side of hoisting point offsets.

3. The single point lift pile system of claim 2, wherein: the thickness of the supporting plate is larger than or equal to that of the clamping block.

4. The single point lift pile system of claim 1, wherein: the guide frame is supported on the seabed at the position of the pile to be erected through a plurality of fixing piles, the fixing piles are uniformly distributed on the periphery of the guide frame, the top end of each fixing pile is fixedly connected with the guide frame, and the bottom end of each fixing pile is inserted into the seabed.

5. The single point lift pile system of claim 4, wherein: the guide frame comprises a guide platform and a supporting platform which are arranged in parallel from top to bottom, the guide platform and the supporting platform are fixedly connected through a plurality of inclined struts, the U-shaped opening is formed in one side of the guide platform, the part, below the U-shaped opening, of the supporting platform is in a hollow-out arrangement, an opening communicated with the hollow-out part is formed in the edge of one side of the supporting platform, the opening and the U-shaped opening are located on the same side, and the opening size of the opening is larger than or equal to that of the U-shaped opening.

6. The single point lift pile system of claim 5, wherein: supporting platform's bottom periphery is equipped with many landing legs, many the landing leg equipartition in supporting platform's bottom periphery, every a fixed sleeve is connected to the bottom of landing leg, the spud pile wears to locate in the fixed sleeve, just the top fixed connection of spud pile in fixed sleeve.

7. The single point lift pile system of claim 1, wherein: the U-shaped opening edge of the guide frame is provided with a plurality of jacks for holding the upright pile body, and the jacks are uniformly distributed on the U-shaped opening edge.

8. The single point lift pile system of claim 1, wherein: the single-point hoisting pile erecting system further comprises a ship for horizontally placing the pile body.

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