CN112482387A - Underwater positioning device for steel casing group and construction method - Google Patents
Underwater positioning device for steel casing group and construction method Download PDFInfo
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- CN112482387A CN112482387A CN202011295234.5A CN202011295234A CN112482387A CN 112482387 A CN112482387 A CN 112482387A CN 202011295234 A CN202011295234 A CN 202011295234A CN 112482387 A CN112482387 A CN 112482387A
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- casing
- steel casing
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/04—Guide devices; Guide frames
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Earth Drilling (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to an underwater positioning device for a steel casing group and a construction method, wherein the underwater positioning device comprises a supporting rod, a sleeve and a steel wire rope, the supporting rod is erected at the top end of the steel casing, the sleeve is sleeved outside the steel casing, and two ends of the steel wire rope are respectively connected with the supporting rod and the sleeve so as to enable the sleeve to be hung on the steel casing; the invention has the advantages that underwater limit is formed, double-layer stable limit can be formed together with the traditional limit below the water surface, and the steel pile casing is prevented from generating large shaking.
Description
Technical Field
The invention relates to the technical field of bridge foundation construction, in particular to an underwater positioning device for a steel pile casing group and a construction method.
Background
In the bridge foundation construction, a bored concrete pile needs to be formed by drilling in the steel casing. For a bridge in an ocean environment, for example, a highway-railway bridge with a quan and strait at three tuyeres in the world, after the steel pile casing is inserted and beaten, the action force of waves is large, and in order to avoid the swinging of a steel truss girder under the condition of a free cantilever, the steel pile casing is irregularly sunk or collapsed in the pore-forming process, a limiting position is required to be arranged on a drilling platform truss at the upper end of the steel pile casing to clamp and fix the pile casing.
In the limit measure of taking to the steel protects a section of thick bamboo at present, no matter what kind of limit structure is taken, all only set up the part that exceeds the surface of water at the steel protects a section of thick bamboo. Because the steel protects a section of thick bamboo from great, long length, even set up two-layer spacing on the surface of water, two-layer spacing protects a section of thick bamboo length direction at the steel and also is almost only equal to a hinge, when the construction sea area storm surge is great, still can produce and rock, influences the pile foundation construction.
Therefore, in order to overcome the defects, the underwater positioning device for the steel casing group and the construction method are needed to be provided.
Disclosure of Invention
Technical problem to be solved
The invention aims to solve the technical problem that a steel pile casing can shake when being greatly surged by wind in a construction sea area.
(II) technical scheme
In order to solve the technical problem, the invention provides an underwater positioning device for a steel casing group, which comprises a support rod, a sleeve and a steel wire rope, wherein the support rod is erected at the top end of the steel casing; and connecting systems are fixedly connected between the sleeves on the adjacent steel casing cylinders so as to fixedly connect the sleeves.
By adopting the technical scheme, the sleeve and the connecting system are utilized to form underwater limit, double-layer limit can be formed together with the traditional limit below the water surface, the position of the sleeve is limited by the steel wire rope, underwater welding and fixing are not needed, labor is saved, the fixing cost of the sleeve is saved, and the positioning effect of the steel pile casing is greatly improved.
As a further explanation of the present invention, it is preferable that the lowering depth of the casing is one third of the shortest length of the steel casing in which the group of steel casings is exposed above the surface of the sea bed.
Through adopting above-mentioned technical scheme, the fixing device on the cooperation water to make the steel protect a section of thick bamboo and can obtain furthest's fixed action, make the steel protect a section of thick bamboo and rock the distance and also be in the within range of allowwing when receiving great stormy waves.
As a further explanation of the invention, preferably, two ends of the supporting rod are respectively and fixedly connected with two limiting plates, and the two limiting plates are respectively inserted on the inner end surface and the outer end surface of the steel casing.
Through adopting above-mentioned technical scheme, make branch position adjustable to make branch can face the optional position of steel casing, so that the steel of different mounted positions of adaptation protects a section of thick bamboo, improves positioner's suitability.
As a further explanation of the present invention, preferably, the connecting end of the supporting rod and the limiting plate is fixedly connected with a trapezoidal end plate, one side of the end plate with a large width is fixedly connected with the limiting plate, and one end of the end plate with a small width is fixedly connected with the supporting rod.
Through adopting above-mentioned technical scheme, improve the joint strength of branch and limiting plate, make branch can bear heavier sleeve pipe, guarantee that the sleeve pipe can stably fix on the steel protects a section of thick bamboo.
As a further description of the present invention, preferably, one end of the end plate with a large width extends out of the limiting plate, and the length of the end plate extends out of 50mm to 120 mm.
By adopting the technical scheme, the bending moment in the middle of the supporting rod can be reduced, the supporting rod is prevented from being deformed by stress to influence the fixation of the position of the sleeve, and the supporting rod can be ensured to normally work for a long time.
As a further explanation of the present invention, it is preferable that the limiting plate and the protruding end plate on the outer side are fixedly connected with a lifting lug with a circular hole, the sleeve is also fixedly connected with a lifting lug, and the steel wire rope is fixedly connected with the lifting lug.
Through adopting above-mentioned technical scheme, be convenient for fixed wire rope, still can adjust the length that wire rope is located between two lugs through the mode of dragging wire rope, kill two birds with one stone.
As a further explanation of the invention, the wall thickness of the sleeve is preferably the same as that of the steel casing, the inner diameter of the sleeve is 20mm larger than the outer diameter of the steel casing, and the length of the sleeve is selected to be between 1 and 2 m.
By adopting the technical scheme, when the steel protects a section of thick bamboo and receives the storm surge effect, take place small dislocation between sleeve pipe and the steel protects a section of thick bamboo, sleeve pipe and steel protect a surface chucking this moment, protect a section of thick bamboo formation restraint under water to the steel, prevent that it from taking place to swing by a wide margin and deformation.
As a further explanation of the present invention, it is preferable that the thickness of the sleeve pipe at a position 20 to 50cm from the upper and lower ends is increased to two thirds of the original thickness.
Through adopting above-mentioned technical scheme to prevent that the sleeve pipe book mouth from warping, make the sleeve pipe can normally work for a long time.
The invention also provides a construction method of the underwater positioning device for the steel casing group, which is characterized by comprising the following steps of: comprises the following steps of (a) carrying out,
i, after the steel casing is inserted and beaten, inserting a support rod on the steel casing, sleeving a steel wire rope on a lifting lug of a sleeve, and sleeving the sleeve on the steel casing;
sleeving one end of the steel wire rope on the lifting lug, adjusting the position of the support rod to enable the lifting lug and the lifting lug on the sleeve to be positioned on the same vertical plane, and keeping the heights of the sleeve consistent;
and III, welding a connecting system between the adjacent casings, and lowering the casings and the connecting system integrally below the sea surface after welding.
By adopting the technical scheme, the positioning device forms underwater limit, and can form double-layer limit together with the traditional below-water limit; and the position limitation is formed by clamping by utilizing the micro dislocation generated between the sleeve and the steel casing, and the steel wire rope can further ensure that the sleeve does not slide down, so that the sleeve can normally work for a long time.
As a further illustration of the invention, it is preferred that the wire rope is inserted into the round hole of the lifting lug and pulled before welding the connection system, to reduce the wire rope length between the lifting lug and the lifting lug on the casing.
By adopting the technical scheme, the position of the sleeve is stably fixed when the connecting system is welded, so that the connecting system can be accurately fixed on the preset position of the sleeve.
(III) advantageous effects
The technical scheme of the invention has the following advantages:
1. the invention can form a layer of limit under water, and form double-layer limit with the traditional limit structure on water, thereby greatly reducing the swing and deformation of the steel pile casing under the action of wind surge;
2. the positioning device has simple structure, convenient manufacture and good effect, the sleeve and the surface of the steel casing can be clamped tightly by utilizing uneven micro-dislocation between the steel casing group and the sleeve, and the steel wire rope can further ensure that the whole device does not slide down, so that the whole positioning device can work normally;
3. the connecting system between the sleeves can be welded according to the distribution condition of the steel casing groups, so that the structural form is changeable, and the application range is wide.
Drawings
FIG. 1 is a state diagram of the underwater positioning of the present invention;
FIG. 2 is a structural view of a strut of the present invention;
fig. 3 is a top view of the present invention.
In the figure: 1. a strut; 11. an end plate; 12. a convex edge; 13. a limiting plate; 14. lifting lugs; 2. a sleeve; 3. a wire rope; 4. a connecting system; 5. and (5) a steel casing.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
An underwater positioning device for steel casing groups is combined with figures 1 and 3 and comprises a supporting rod 1, a sleeve 2 and a steel wire rope 3, wherein the supporting rod 1 is erected at the top end of a steel casing 5, the sleeve 2 is sleeved outside the steel casing 5, and two ends of the steel wire rope 3 are respectively connected with the supporting rod 1 and the sleeve 2 so as to enable the sleeve 2 to be hung on the steel casing 5; and the sleeves 2 on the adjacent steel casing 5 are fixedly connected with a connecting system 4, and the connecting system 4 is a truss formed by welding steel rods so as to fixedly connect the sleeves 2.
With reference to fig. 1 and 2, the support rod 1 is a square steel rod, and the length of the support rod 1 can be directly cut into a long steel rod according to the required outer diameter of the steel casing 5, so that the processing is convenient; two limiting plates 13 are fixedly connected to two ends of the supporting rod 1 respectively through welding, the limiting plates 13 can be square steel plates or arc steel plates, and can be selectively processed according to site leftover materials, so that the cost is reduced, and the processing is convenient; the two limiting plates 13 are respectively inserted on the inner end surface and the outer end surface of the steel casing 1, so that the support rod 1 can be hung on the steel casing 5; the connecting end of the supporting rod 1 and the limiting plate 13 is fixedly connected with a trapezoidal end plate 11, the end plate 11 is also a steel plate, and the supporting rod 1 can be processed and formed or additionally welded; the side with the larger width of the end plate 11 is fixedly connected with the limit plate 13, and the end with the smaller width of the end plate 11 is fixedly connected with the support rod 1; the end with the large width of the end plate 11 extends out of the limit plate 13, and the extending length of the end plate 11 is 50-120 mm; the limiting plate 13 and the protruding end plate 11 on the outer side are fixedly connected with lifting lugs 14 with round holes, the sleeve is also fixedly connected with lifting lugs, and the steel wire rope 3 is fixedly connected between the two lifting lugs.
With reference to fig. 1 and 2, a supporting rod 1 with a limiting plate 13 is arranged, so that the position of the supporting rod 1 can be adjusted, the supporting rod 1 can face any position of the steel casing 5, the steel casing 5 at different installation positions can be adapted, two lifting lugs can be positioned on the same vertical surface, the steel wire rope 3 can be ensured to vertically limit the position of the sleeve 2, the supporting rod 1 and the steel wire rope 3 can be ensured to stably support the sleeve 2, and the applicability of the positioning device can be improved; set up end plate 11 and improve the joint strength of branch 1 and limiting plate 13, make branch 1 can bear heavier sleeve pipe, guarantee that sleeve pipe 2 can stably fix on steel protects a section of thick bamboo 5, and end plate 11 stretches out the moment of flexure at the outer 1 middle parts of reducible branch of limiting plate 13, avoid branch 1 atress to warp and influence the fixed to sleeve pipe 2 position, guarantee that branch 1 can be normal work for a long time and be convenient for fixed wire rope 3, still can adjust the length that wire rope 3 is located between two lugs through the mode of dragging wire rope 3, kill two birds with one stone.
Referring to fig. 1 and 3, a sleeve 2 is a circular steel pipe, the wall thickness of the sleeve 2 is the same as that of a steel casing 5, the inner diameter of the sleeve 2 is 20mm larger than the outer diameter of the steel casing 5, the length of the sleeve 2 is selected to be 1-2 m, when the steel casing 5 is subjected to the action of wind surge, a gap between the sleeve 2 and the steel casing 5 can generate micro dislocation, and at the moment, the sleeve 2 and the surface of the steel casing 5 are clamped tightly to form underwater constraint on the steel casing 5, so that the steel casing 5 is prevented from generating large-amplitude swing and deformation; the wall thickness of the position, 20-50 cm away from the upper end and the lower end, of the sleeve 2 is thickened to two thirds of the original wall thickness, so that the coil mouth of the sleeve 2 is prevented from deforming, and the sleeve 2 can normally work for a long time; the lowering depth of the casing 2 is one third of the shortest steel casing 5 with the length of the group of steel casings 5 exposed above the sea bed surface, and the casing is matched with a fixing device on water, so that the steel casing 5 can be fixed to the maximum extent, and the shaking distance of the steel casing 5 is also in an allowable range when the steel casing is subjected to large storms.
Through utilizing sleeve pipe 2 and connection 4 to form spacing under water, can form double-deck spacing with the below spacing of traditional surface of water together to utilize wire rope 3 to restrict sleeve pipe 2's position, need not underwater welding fixed, not only use manpower sparingly, still save sleeve pipe 2's fixed cost, greatly improve the location effect of steel casing 5.
The invention also provides a construction method of the underwater positioning device for the steel casing group, which is characterized by comprising the following steps of: comprises the following steps of (a) carrying out,
i, after the steel casing 5 is inserted and beaten, inserting a support rod 1 on the steel casing 5, sleeving a steel wire rope 3 on a lifting lug of a sleeve 2, and sleeving the sleeve 2 on the steel casing 5;
II, sleeving one end of the steel wire rope 3 on the lifting lug 14, adjusting the position of the support rod 1 to enable the lifting lug 14 and the lifting lug on the sleeve 2 to be positioned on the same vertical plane, and keeping the elevation of the sleeve 2 consistent;
before welding the connecting system 4, the steel wire rope 3 is inserted into the round hole of the lifting lug 14, the steel wire rope 3 is pulled to reduce the length of the steel wire rope 3 between the lifting lug 14 and the lifting lug on the casing 2, so that the position of the casing 2 is stably fixed when the connecting system 4 is welded, the connecting system 4 can be accurately fixed on a preset position of the casing 2, then the connecting system 4 is welded between the adjacent casings 2, and the casing 2 and the connecting system 4 are integrally lowered to the sea surface after welding is completed.
The method has the advantages that the production modes of various structures are simple, the connection mode is also simple, even if the position of the lug is welded to have a large error, the position of the steel casing 5 can be ensured to be positioned on the same vertical surface by rotating the support rod 1, the fault tolerance rate is very high, the operation of construction personnel is convenient, the excessive measurement work is not needed, the labor is saved, and the positioning construction efficiency is improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a steel protects a crowd positioner under water which characterized in that: the steel protecting device comprises a supporting rod (1), a sleeve (2) and a steel wire rope (3), wherein the supporting rod (1) is erected at the top end of a steel protecting cylinder (5), the sleeve (2) is sleeved outside the steel protecting cylinder (5), and two ends of the steel wire rope (3) are respectively connected with the supporting rod (1) and the sleeve (2) so that the sleeve (2) is hung on the steel protecting cylinder (5); and connecting systems (4) are fixedly connected between the sleeves (2) on the adjacent steel casing cylinders (5) so as to fixedly connect the sleeves (2).
2. The underwater positioning device for the steel casing group according to claim 1, wherein: the lowering depth of the casing (2) is one third of the shortest steel casing (5) with the length of the group of the steel casings (5) exposed above the surface of the sea bed.
3. The underwater positioning device for the steel casing group according to claim 1, wherein: two limiting plates (13) are fixedly connected to two ends of the supporting rod (1) respectively, and the two limiting plates (13) are inserted into the inner end face and the outer end face of the steel casing (5) respectively.
4. The underwater positioning device for the steel casing group according to claim 3, wherein: the connecting end of the supporting rod (1) and the limiting plate (13) is fixedly connected with a trapezoidal end plate (11), one side of the end plate (11) with large width is fixedly connected with the limiting plate (13), and one end of the end plate (11) with small width is fixedly connected with the supporting rod (1).
5. The underwater positioning device for the steel casing group according to claim 4, wherein: the end with large width of the end plate (11) extends out of the limit plate (13), and the extending length of the end plate (11) is 50-120 mm.
6. The underwater positioning device for the steel casing group according to claim 5, wherein: lifting lugs (14) with round holes are fixedly connected to the limiting plates (13) on the outer sides and the protruding end plates (11), lifting lugs are also fixedly connected to the sleeves (2), and the steel wire ropes (3) are fixedly connected to the lifting lugs (11).
7. The underwater positioning device for the steel casing group according to claim 1, wherein: the wall thickness of the sleeve (2) is the same as that of the steel casing (5), the inner diameter of the sleeve (2) is 20mm larger than the outer diameter of the steel casing (5), and the length of the sleeve (2) is selected to be 1-2 m.
8. The underwater positioning device for the steel casing group according to claim 1, wherein: the wall thickness of the sleeve (2) 20-50 cm away from the upper end and the lower end is thickened to two thirds of the original wall thickness.
9. A construction method of an underwater positioning device for a steel casing group is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
i, after the steel pile casing (5) is inserted and beaten, inserting a support rod (1) on the steel pile casing (5), sleeving a steel wire rope (3) on a lifting lug of a sleeve (1), and sleeving a sleeve (2) on the steel pile casing (5);
II, sleeving one end of the steel wire rope (3) on the lifting lug (14), adjusting the position of the support rod (1) to enable the lifting lug (14) and the lifting lug on the sleeve (1) to be located on the same vertical plane, and keeping the heights of the sleeves (2) consistent;
and III, welding a connecting system (4) between the adjacent casings (2), and lowering the casings (2) and the connecting system (4) below the sea surface integrally after welding.
10. The construction method of the underwater positioning device for the steel casing group according to claim 9, characterized in that: before the welding connection system (4), the steel wire rope (3) is inserted into the round hole of the lifting lug (14), and the steel wire rope (3) is pulled so as to reduce the length of the steel wire rope (3) between the lifting lug (14) and the lifting lug on the sleeve (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011295234.5A CN112482387B (en) | 2020-11-18 | 2020-11-18 | Underwater positioning device for steel casing group and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011295234.5A CN112482387B (en) | 2020-11-18 | 2020-11-18 | Underwater positioning device for steel casing group and construction method |
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| CN112482387A true CN112482387A (en) | 2021-03-12 |
| CN112482387B CN112482387B (en) | 2022-11-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114606967A (en) * | 2022-04-22 | 2022-06-10 | 中建市政工程有限公司 | Underwater pile foundation slurry auxiliary device and construction method |
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| CN114606967A (en) * | 2022-04-22 | 2022-06-10 | 中建市政工程有限公司 | Underwater pile foundation slurry auxiliary device and construction method |
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| CN112482387B (en) | 2022-11-15 |
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