CN216689260U - Assembly type directional pier-collision preventing structure capable of reducing stress of foundation bed - Google Patents
Assembly type directional pier-collision preventing structure capable of reducing stress of foundation bed Download PDFInfo
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- CN216689260U CN216689260U CN202220222649.8U CN202220222649U CN216689260U CN 216689260 U CN216689260 U CN 216689260U CN 202220222649 U CN202220222649 U CN 202220222649U CN 216689260 U CN216689260 U CN 216689260U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The utility model provides an assembled directional ship-collision-preventing pier structure for reducing foundation bed stress, which comprises a stepped caisson and a breast wall, wherein the stepped caisson is arranged in the caisson; the stepped caisson comprises a plurality of caisson bin lattices surrounded by an outer wall, a middle partition wall and a bottom plate, the height of the caisson bin lattices is changed in a stepped manner along the horizontal direction and comprises a high bin lattice and a low bin lattice, the breast wall is arranged at the top end of the high bin lattice, the low bin lattice is arranged on two adjacent side surfaces of the high bin lattice, and all the low bin lattices are surrounded by the high bin lattice in half; and pull rings are arranged on two adjacent side surfaces of the breast wall and correspond to the low bin grids. The design of the stepped caisson cabin grids reduces the stress required by the foundation bed and the foundation, and simultaneously improves the ship collision direction and the anti-overturning moment in the normal direction of the stay cable; the stress area in a splash zone is reduced, the wave force is reduced, the breast wall is installed in a land prefabricated field assembly mode, the types of overwater operation construction machinery are reduced, and the protection purpose of economy, high efficiency and environmental protection is achieved.
Description
Technical Field
The utility model belongs to the technical field of offshore engineering construction, and particularly relates to an assembled directional pier collision preventing structure for reducing foundation bed stress.
Background
Large offshore infrastructures, either coastal or offshore, are often exposed to the risk of collision from a vessel on the sea surface. For areas with lower foundation bearing capacity, the traditional upright pier structure generally has large plane size and increased self weight in order to meet the requirements on self stability and foundation bearing capacity, so that the structure has large wave-facing area, large wave force acting on a caisson, small anti-overturning capacity and unsuitability for severe conditions of water depth, large waves and large upper process use load; meanwhile, the upper breast wall is of a cast-in-place concrete structure, and the requirements on the type and the lifting capacity of offshore operation machinery are high.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems, the utility model provides an assembled directional ship-collision-preventing pier structure for reducing foundation bed stress, which is simple in structure, convenient to use and capable of adapting to severe conditions such as water depth and large waves, and through the design of the step-type caisson for preventing the ship-collision pier, the dead weight of a pier body reaching the same anti-collision effect is reduced, the stress required by a foundation bed and a foundation is reduced, and the anti-inclination moment of the caisson with the same weight is greatly improved; meanwhile, the stress area in a splash zone is reduced, the wave force borne by the splash zone is reduced, and the ship collision prevention capability is greatly improved.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the assembled directional ship-collision-preventing pier structure for reducing the stress of the foundation bed comprises a stepped caisson and a breast wall; the stepped caisson comprises a plurality of caisson cabin grids formed by surrounding an outer wall, a middle partition wall and a bottom plate, the height of the caisson cabin grids is changed in a stepped manner along the horizontal direction, the caisson cabin grids comprise a high cabin grid and a low cabin grid, the breast wall is installed at the top end of the high cabin grid, the low cabin grid is arranged on two adjacent side surfaces of the high cabin grid, and all the low cabin grids are surrounded by the high cabin grid in a half-surrounding manner; and pull rings are arranged on two adjacent side surfaces of the breast wall and correspond to the low bin grids.
According to the technical scheme, the anti-tilting moment of the caisson with the same weight is greatly improved through the stepped arrangement of the caisson bin grids, the wave force borne by the structure for preventing the ship from colliding the pier is reduced, the requirements on the foundation bed stress and the foundation bearing capacity are lower than those of the common pier structure, and the purpose of economically and efficiently preventing the ship from colliding is achieved; meanwhile, the stepped caisson and the breast wall in the technical scheme are both prefabricated on land and installed in an on-water assembly mode, and the types and the load lifting requirements of the on-water construction machinery are reduced.
In other embodiments of the present application, the height of the intermediate partition wall of the high bay is lower than the height of the outer wall of the high bay, and the height of the top of the low bay is not higher than the extreme low water level of the sea area where the pier structure is located; the structure ensures that the breast wall is not influenced by the intermediate partition wall when being arranged at the top end of the high-bay grid, thereby being convenient for the installation of the breast wall.
In other embodiments of the present application, the height difference between the intermediate partition wall of the high bay and the outer wall thereof is h, and the bottom of the breast wall is inwardly contracted around the section within the range of h; the structure enables the assembly of the breast wall and the stepped caisson to be more convenient.
In other embodiments of the present application, h is 1-2 m, and the size of the unilateral inward contraction of the bottom of the breast wall is m + n, wherein m is the wall thickness of the outer wall of the high bay, and n is 10-20 mm.
In other embodiments of the present application, the pull ring is provided with an intercepting cord, and the other end of the intercepting cord is connected to another pull ring or other fixing structure of the pier structure.
In the technical scheme, a protected area is formed between the two pull rings, the intercepting cable is connected with the pull ring of the other pier structure or other fixed structures through the pull rings to form an integral ship collision prevention system, and when a water ship collides with the intercepting cable or the ship collision prevention pier structure, the intercepting cable generates horizontal tension along the direction of the intercepting cable on the ship collision prevention pier structure.
In other embodiments of this application, the top of breast wall is provided with the rings that are used for lifting by crane the installation to hoist the breast wall.
In other embodiments of the present application, the planar shapes of the pull ring and the hanging ring are rectangular-like or circular.
In other embodiments of the present application, the caisson compartment is filled with pressurized material.
In other embodiments of the present application, the stepped caisson is placed in the sea at a corner of a protected area, and the bottom plate is disposed on a foundation bed.
In other embodiments of the present application, a warning light stake is installed at the center of the top of the breast wall to warn the ship on the sea.
In other embodiments of the present application, the stepped caisson is made of a reinforced concrete material.
Compared with the prior art, the utility model has the advantages and positive effects that:
1. the assembled directional anti-ship-collision pier structure for reducing the foundation bed stress provided by the utility model adopts the stepped caisson bin lattice arrangement, so that the anti-tilting moment of the caisson with the same weight is greatly improved, the wave force borne by the anti-ship-collision pier structure is reduced, the requirements on the foundation bed stress and the foundation bearing capacity are lower than those of a common pier structure, and the purpose of economically and efficiently preventing ship collision is achieved;
2. the assembled directional ship-collision-preventing pier structure for reducing the stress of the foundation bed provided by the utility model adopts an overwater assembled installation construction mode, the pier structures taking the stepped caisson and the breast wall as main structures are all prefabricated on land, concrete pouring on water is not needed, the equipment types installed on water are reduced, the minimum hoisting weight of a hoisting machine installed on water is reduced, and the purposes of economy and environmental protection are achieved.
Other features and advantages of the present invention will become more apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a pier structure for preventing a ship from colliding according to an embodiment of the utility model;
FIG. 2 is a top view of the anti-collision pier structure of the embodiment of the utility model;
fig. 3 is an exploded view of the structure of the anti-collision pier of the embodiment of the utility model.
In the above figures: a pier structure 100 for preventing a ship from colliding; a stepped caisson 1; an outer wall 11; an intermediate partition wall 12; a bottom plate 13; a high bay 14; a low bin 15; a breast wall 2; a tab 21; a hanging ring 22; pressing and loading the material 3; an interception rope 4; a warning light beacon 5; a foundation bed 6; the sea surface 7; an impact area 8; protected area 9.
Detailed Description
The utility model is described in detail 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", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.
For better understanding of the above technical solutions, the following detailed descriptions are provided with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, in an exemplary embodiment of an assembled directional anti-collision pier structure 100 for reducing foundation stress according to the present invention, the anti-collision pier structure 100 is an underwater structure protection device applied to an underwater foundation bearing layer with shallow burial depth or a foundation bearing layer with low bearing capacity and having a large collision force against a ship on a sea surface 7, and includes a stepped caisson 1 and a breast wall 2.
Specifically, referring to fig. 1 and 2, the stepped caisson 1 includes a plurality of caisson cabin cells surrounded by an outer wall 11, an intermediate partition wall 12 and a bottom plate 13, the height of the caisson cabin cells changes in a stepped manner along the horizontal direction and the caisson cabin cells are internally filled with a pressure-loaded material 3, the caisson cabin cells include a high cabin cell 14 and a low cabin cell 15, a breast wall 2 is installed at the top end of the high cabin cell 14, the low cabin cells 15 are arranged on two adjacent side surfaces of the high cabin cell 14, and all the low cabin cells 15 are half surrounded by the high cabin cell 14; the two adjacent side surfaces of the breast wall 2 are provided with pull rings 21, and the pull rings 21 are arranged corresponding to the low bin grids 15.
In this embodiment, the pull ring 21 is provided with an intercepting cable 4, and the other end of the intercepting cable 4 is connected to one pull ring 21 of another ship crash preventing pier structure 100 or other fixed structures. Further, a hanging ring 22 for hoisting and installing is arranged at the top of the breast wall 2, and a warning light pile 5 is arranged at the center of the top of the breast wall 2 and plays a warning role on the ship on the sea surface 7. Preferably, the stepped caisson 1 is placed in the sea at the corner of the protected area, with its bottom plate 13 set on the foundation bed 6; four hoisting rings 22 are preferably arranged, and the hoisting rings 22 meet the requirement of safely hoisting the breast wall 2; the planar shapes of the tab 21 and the loop 22 are preferably rectangular-like or circular.
More specifically, in the above embodiment, the stepped caisson 1 is made of reinforced concrete material, and is prefabricated, flowed down, floated to the site in a caisson prefabrication site, and then sunk onto the foundation bed 6 after being filled with water, and the ballast 3 is backfilled on water in each caisson compartment in the stepped caisson 1, and the height of the backfilled ballast 3 can be determined according to specific calculation.
The breast wall 2 on high storehouse check 14 top is precast concrete breast wall, and it is prefabricated at the prefabrication field, and the top of breast wall 2 sets up rings 22 of hoist and mount usefulness, refutes to the mounted position through the side and installs on the top of high storehouse check 14 by the ship crane assembled. Two adjacent side surfaces of the breast wall 2 are provided with pull rings 21 in the direction of the protected area 9, the pull rings 22 and the pull rings 21 are both manufactured with the breast wall 2 at the same time in a prefabrication yard, and the rest area around the ship collision preventing pier structure 100 except the protected area 9 is a collision area 8.
After the breast wall 2 is installed, a warning light pile 5 is installed above the breast wall, an intercepting cable 4 is installed on a pull ring 21 on the side, and the intercepting cable 4 is connected with pull rings 21 of other fixed structures or other ship collision prevention pier structures 100 to form an integral collision prevention system. When the water vessel collides with the intercepting cables 4 or the ship-collision preventing pier structure 100, the intercepting cables 4 generate a horizontal pulling force in the direction of the intercepting cables 4 to the ship-collision preventing pier structure 100. The entire anti-boat pier structure 100 provides a stable weight by the deadweight of the stepped caisson 1, the backfilled ballast 3, and the breast wall 2.
The structure 100 for preventing the ship from colliding with the pier is characterized in that the ladder-type caisson bin grids are arranged, so that the anti-tilting moment of the caisson with the same weight is greatly improved, the integral stability of the caisson is ensured, the wave force borne by the upper part of the structure 100 for preventing the ship from colliding with the pier is reduced, the weight of the caisson is reduced, the limit of construction energy is met, the requirements on the stress of a foundation bed 6 and the bearing capacity of the foundation are lower than those of a common upright pier structure, and the purpose of preventing the ship from colliding with the foundation economically and efficiently is achieved; simultaneously in this embodiment, cascaded caisson 1 and breastwork 2 are the prefabricated and assembled installation on water on land, have reduced the kind and the load lifting requirement of the machinery of construction on water, reduce the construction degree of difficulty and cost.
Further, the ship collision prevention pier structure 100 with the stepped caisson 1 as a main structure reduces the dead weight of the caisson structure by reducing the area of the upper part of the caisson, and solves the problem that the construction capacity conflicts with the stability requirement of the caisson.
With continued reference to fig. 3, to complete the above-water assembly installation of the breast wall 2, in this embodiment, the height of the intermediate partition walls 12 of the high bay 14 is lower than the height of the outer walls 11 of the high bay 14, and the height difference is h, the bottom of the breast wall 2 is contracted inward around the section within the range of h, and the top height of the low bay 15 is not higher than the extreme low water level of the sea area where the pier structure is located. The assembly of the breast wall 2 and the stepped caisson 1 under the structure is more convenient, and the breast wall 2 is not influenced by the intermediate partition wall 12 of the high-bay 14 during the assembly installation, so that the construction difficulty is reduced. In the embodiment, h is preferably 1-2 m, the size of the inward contraction of the single side of the bottom of the breast wall 2 is m + n, wherein m is the wall thickness of the outer wall 11 of the high bay 14, and n is preferably 10-20 mm.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (10)
1. An assembled directional ship-collision-prevention pier structure for reducing foundation bed stress is characterized by comprising a stepped caisson and a breast wall; the stepped caisson comprises a plurality of caisson cabin grids formed by surrounding an outer wall, a middle partition wall and a bottom plate, the height of the caisson cabin grids is changed in a stepped manner along the horizontal direction, the caisson cabin grids comprise a high cabin grid and a low cabin grid, the breast wall is installed at the top end of the high cabin grid, the low cabin grid is arranged on two adjacent side surfaces of the high cabin grid, and all the low cabin grids are surrounded by the high cabin grid in a half-surrounding manner; and pull rings are arranged on two adjacent side surfaces of the breast wall and correspond to the low bin grids.
2. The fabricated directional ship-strike prevention pier structure for reducing foundation bed stress according to claim 1, wherein the height of the intermediate partition walls of the high-bay is lower than the height of the outer walls of the high-bay, and the height of the top of the low-bay is not higher than the extremely low water level of the sea area in which the pier structure is located.
3. The fabricated directional ship crash prevention pier structure for reducing foundation bed stress according to claim 2, wherein the height difference between the intermediate partition walls of the high bay and the outer wall thereof is h, and the bottom of the breast wall is inwardly contracted around the section within the range of h.
4. The prefabricated directional ship-crash-preventing pier structure for reducing the foundation bed stress as claimed in claim 3, wherein h is 1-2 m, and the size of the inward contraction of the single side of the bottom of the breast wall is m + n, wherein m is the wall thickness of the outer wall of a high bay, and n is 10-20 mm.
5. The fabricated directional pier structure for reducing foundation bed stress according to claim 1, wherein the pull ring is provided with an intercepting cable, and the other end of the intercepting cable is connected to a pull ring or other fixed structure of another pier structure.
6. The prefabricated directional ship-crash-preventing pier structure for reducing the stress of the foundation bed according to claim 1, wherein the breast wall is a precast concrete structure, and a lifting ring for lifting installation is arranged at the top of the breast wall.
7. The fabricated directional pier structure for reducing foundation bed stress of claim 6, wherein the planar shape of the pull ring and the lifting ring is rectangular-like or circular.
8. The fabricated directional ship crash prevention pier structure for reducing foundation bed stress according to claim 1, wherein a ballast material is backfilled in the caisson cabin grid.
9. The fabricated directional ship crash pier structure for reducing foundation bed stress of claim 1, wherein the stepped caisson is placed in the sea at a corner of a protected area, and the bottom plate is disposed on the foundation bed.
10. The fabricated directional ship crash prevention pier structure for reducing foundation bed stress according to claim 1, wherein a warning light pile is installed at the center of the top of the breast wall; and/or the stepped caisson is made of reinforced concrete material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220222649.8U CN216689260U (en) | 2022-01-27 | 2022-01-27 | Assembly type directional pier-collision preventing structure capable of reducing stress of foundation bed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220222649.8U CN216689260U (en) | 2022-01-27 | 2022-01-27 | Assembly type directional pier-collision preventing structure capable of reducing stress of foundation bed |
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| CN216689260U true CN216689260U (en) | 2022-06-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012394A (en) * | 2022-06-15 | 2022-09-06 | 福州市规划设计研究院集团有限公司 | Prestressed steel plate concrete underground continuous wall and design and construction method thereof |
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2022
- 2022-01-27 CN CN202220222649.8U patent/CN216689260U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012394A (en) * | 2022-06-15 | 2022-09-06 | 福州市规划设计研究院集团有限公司 | Prestressed steel plate concrete underground continuous wall and design and construction method thereof |
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