CN115627744B - Construction platform and construction method for steel structure in water of silt ultra-soft soil - Google Patents
Construction platform and construction method for steel structure in water of silt ultra-soft soil Download PDFInfo
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- CN115627744B CN115627744B CN202211361812.XA CN202211361812A CN115627744B CN 115627744 B CN115627744 B CN 115627744B CN 202211361812 A CN202211361812 A CN 202211361812A CN 115627744 B CN115627744 B CN 115627744B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 164
- 239000010959 steel Substances 0.000 title claims abstract description 164
- 238000010276 construction Methods 0.000 title claims abstract description 61
- 239000002689 soil Substances 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000010802 sludge Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/06—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for immobilising, e.g. using wedges or clamping rings
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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
- E02D27/42—Foundations for poles, masts or chimneys
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0039—Methods for placing the offshore structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0039—Methods for placing the offshore structure
- E02B2017/0043—Placing the offshore structure on a pre-installed foundation structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0056—Platforms with supporting legs
- E02B2017/006—Platforms with supporting legs with lattice style supporting legs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
The invention discloses a construction platform for a steel structure in water of silt ultra-soft soil and a construction method thereof, wherein the construction platform comprises a suction barrel, a first pattern steel plate and a cross truss are sequentially arranged at the top of the suction barrel, the top of the cross truss is used for placing steel plates for providing walking and mechanical movement for personnel, and meanwhile, the steel plates are used for pressing the suction barrel, and a second pattern steel plate is arranged at the position, corresponding to the suction barrel, of the top of the cross truss; the upper pressure makes the spring tighten, the barrel cover and the barrel hole are tightly touched together, the upper pressure is removed, the rebound force of the spring jacks up the barrel cover, and the problem that the barrel cover cannot be opened is avoided; the steel structure part of the invention has good connection performance, strong overall structure and excellent stability, can ensure the stability of the overall structure by matching with the suction barrel, also avoids the complicated step of arranging the foundation in a traditional large area, can be quickly lifted after the use is finished so as to facilitate the next construction, saves time and effort, and greatly quickens the whole construction progress.
Description
Technical Field
The invention relates to the technical field of sludge structure engineering, in particular to a construction platform for a steel structure in water of sludge ultra-soft soil and a construction method thereof.
Background
At present, china develops clean renewable energy with offshore wind power resources as key points, a suction bucket foundation is often used as a foundation of a floating offshore wind power structure, an offshore oil exploitation platform and other marine structures, but the application of the suction bucket foundation at shallow water sludge is rare, and at the shallow water sludge, most of the structures still use concrete structures or single steel structures, so that the suction bucket foundation is complex in structure and greatly delays the construction progress. The most widely used single-barrel suction barrel foundation in engineering, but the traditional suction barrel faces a new difficulty: after it is used, it is difficult to easily take it out. Because the suction barrel seals the barrel cover, when the barrel is used up and is about to be lifted out, the negative pressure in the barrel can reach a higher degree, the barrel cover can be tightly clung to the barrel hole and can not be opened, so that the construction difficulty can be greatly increased, and a plurality of unnecessary troubles are caused for the next construction. Therefore, a new design is needed for the suction barrel which not only can be tightly attached to the barrel hole when in use, but also can be automatically opened when the use is finished, so that the repeated use of the suction barrel can be greatly facilitated, and the construction time of the whole steel structure platform is greatly shortened.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides the construction platform of the steel structure in the water of the silt ultra-soft soil and the construction method thereof, which can enable the construction platform to be placed in the silt ultra-soft soil smoothly, and the construction platform has the advantages of high installation speed, simplicity and convenience in operation, time and energy saving and great acceleration of the progress of the whole construction progress.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the suction barrel comprises a barrel skirt, a barrel hole and a barrel cover, wherein the barrel hole is formed in the top of the barrel skirt, the inside of the barrel skirt is of a hollow structure, grooves are formed in the periphery of the top of the barrel skirt, the barrel hole is concentric with the grooves, N springs are uniformly arranged in the periphery of the grooves, N is more than or equal to 4, and the barrel cover is connected with the barrel skirt through the springs; in the free state of the spring, the barrel cover is separated from the barrel hole, and when the spring is stressed and compressed, the barrel cover is tightly attached to the barrel hole and the top of the barrel skirt in the circumferential direction.
Preferably, a rubber sealing strip is arranged on the circumference of the barrel hole.
A silt ultra-soft soil underwater steel structure construction platform utilizing a suction barrel is used for a shallow water silt river course and comprises N suction barrels, N is more than or equal to 4, the suction barrels are respectively arranged on two sides of the river course and in the middle of the river course, a first pattern steel plate and a cross truss are sequentially arranged at the top of each suction barrel, the top of each cross truss is used for placing steel plates for providing walking and mechanical movement for personnel, meanwhile, the cross truss is used for pressing a barrel cover of each suction barrel, and a second pattern steel plate is arranged at the position, corresponding to each suction barrel, of the top of each cross truss.
Preferably, the suction barrels on two sides of the river channel respectively form a first row of suction barrels and a second row of suction barrels, the suction barrels in the middle of the river channel form a third row of suction barrels, the first row of suction barrels, the second row of suction barrels and the third row of suction barrels are parallel to each other, and the second row of suction barrels and the third row of suction barrels are staggered and parallel.
The length of the first row of suction barrels is greater than that of the second row of suction barrels and the third row of suction barrels, the lengths of the second row of suction barrels and the third row of suction barrels are the same, the stability of the whole platform is further reinforced through the third row of suction barrels, the steel truss and the I-steel, and stacking is performed on the platform.
Preferably, a pier foundation is arranged in the middle of the river channel, and the pier foundation is positioned at the bottom of the cross truss.
The pier foundation is matched with the suction barrel, so that the stability of the whole platform structure can be enhanced, and meanwhile, the construction speed is improved.
Preferably, the cross truss comprises a steel truss, a first I-steel and a second I-steel, wherein the first I-steel is vertically arranged at the bottom of the steel truss, and the second I-steel is vertically arranged at the top of the steel truss.
Preferably, the number of the suction barrels is 12, 6 suction barrels form a row and are arranged on one side of the river channel, 3 suction barrels form a row and are arranged on the other side of the river channel, and the other 3 suction barrels form a row and are arranged in the middle of the river channel.
Preferably, the number of the steel trusses is 6, the number of the first I-beams is 5, the number of the second I-beams is 5, the first I-beams are symmetrically distributed at the bottom of the steel trusses along the central line of the river channel, the second I-beams and the first I-beams are correspondingly distributed at the top of the steel trusses, and suction barrels are arranged at the bottoms of the first I-beams close to the two sides of the river channel and the bottoms of the first I-beams in the middle of the river channel.
A construction method of a steel structure construction platform in silt ultra-soft soil water comprises the following steps: after reaching a specified silt area, installing a cross truss, checking whether a rubber sealing strip at a barrel hole of a suction barrel is full or not, accurately placing the suction barrel into the silt according to the requirement by a crane, ensuring stable placement of the suction barrel, and enabling a plane where a barrel hole is positioned to reach a horizontal state;
step two: placing a first pattern steel plate on the barrel cover of the suction barrel, then lifting the mounted cross truss by using a crane, and placing the cross truss on the suction barrel according to the requirement;
step three: sequentially placing second pattern steel plates on the tops of the corresponding cross trusses according to the principle corresponding to the first pattern steel plates placed under the cross trusses, wherein the tops of the second pattern steel plates are used for placing steel plates for providing walking and mechanical movement for personnel, if the steel plates without second I-shaped steel and the second pattern steel plates on the second I-shaped steel are encountered, uniformly laying strip steel bars on the steel trusses, and then laying the steel plates on the steel trusses; ensuring the approximate level of the height of the whole construction platform;
step four: the corresponding protection railing is welded on the periphery of the paved platform, so that the safety of personnel is ensured, and corresponding construction is performed;
step five: after the platform is used, the second pattern steel plate, the cross truss and the first pattern steel plate are sequentially removed, the spring loses upper load pressure, upward bouncing resilience force is generated, the barrel cover is jacked up by the resilience force, then the suction barrel is sequentially hoisted by using the crane, and the whole construction flow is finished.
Preferably, in the fourth step, after the corresponding protection railing is welded, a pier foundation is constructed between suction barrels on two sides by adopting a bored pile machine, and after construction is completed, the corresponding steel plates are paved, so that normal use can be started.
The invention has the following beneficial effects:
(1) The invention designs a suction barrel, wherein a barrel cover of the suction barrel compresses a spring after being subjected to upper pressure, so that the barrel cover and a barrel hole are tightly touched together, after the suction barrel is used, the pressure on the upper part of the barrel cover is removed, the barrel cover is jacked by the rebound force of the spring, and then the suction barrel is lifted by a lifting device, so that the problem that the barrel cover cannot be opened is avoided.
(2) The invention ensures that the construction platform can be smoothly placed in the silt ultra-soft soil, has high installation speed and simple and convenient operation, the steel structure part has good connection performance, strong overall structure and excellent stability, and is matched with a newly arranged suction barrel below, and the pier foundation is also arranged, so that the stability of the overall structure can be ensured, the complicated step of arranging the foundation in a traditional large area is avoided, and the construction platform can be quickly lifted after being used so as to facilitate the next construction, thereby saving time and effort and greatly accelerating the progress of the whole construction progress.
Drawings
FIG. 1 is a top view of a steel construction platform according to the present invention.
Fig. 2 is a cross-sectional view of a steel construction work platform according to the present invention.
Fig. 3 is a schematic view of the suction barrel in a free state in the present invention.
Fig. 4 is a schematic view of the suction barrel in a pressurized state in the present invention.
FIG. 5 is a cross-sectional view of suction barrel A-A in accordance with the present invention.
Fig. 6 is a top view of the steel construction work platform of example 1.
Fig. 7 is a cross-sectional view of the steel construction work platform of example 1.
In the figure: 1 barrel cover, 2 springs, 3 barrel skirt, 4 barrel holes, 5 rubber sealing strips, 6 suction barrels, 7 first pattern steel plates, 8 steel trusses, 9-1 first I-steel, 9-2 second I-steel, 10 second pattern steel plates and 11 pier foundations.
Detailed Description
Embodiments of the invention are disclosed in the drawings, and for purposes of explanation, numerous practical details are set forth in the following description. However, it should be understood that these practical details are not to be taken as limiting the invention. That is, in some embodiments of the invention, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.
As shown in fig. 3-5, the suction barrel comprises a barrel skirt 3, a barrel hole 4 and a barrel cover 1, wherein the barrel hole 4 is arranged at the top of the barrel skirt 3, the interior of the barrel skirt 3 is of a hollow structure, a groove is circumferentially arranged at the top of the barrel skirt 3, the barrel hole 4 is concentric with the groove, N springs 2 are uniformly arranged in the groove in the circumferential direction, N is larger than or equal to 4, and the barrel cover 1 is connected with the barrel skirt 3 through the springs; in the free state of the spring 2, the barrel cover 1 is separated from the barrel hole 4, and when the spring 2 is compressed under the force, the barrel cover 1 is tightly attached to the barrel hole 4 and the top of the barrel skirt 3 in the circumferential direction.
Further, a rubber sealing strip 5 is arranged on the circumference of the barrel hole 4.
1-2, the steel structure construction platform in silt ultra-soft soil water is used for a shallow water silt river course, and comprises N suction barrels 6, N is more than or equal to 4, the suction barrels 6 are respectively arranged on two sides of the river course and in the middle of the river course, the suction barrels on two sides of the river course respectively form a first row of suction barrels and a second row of suction barrels, the suction barrels in the middle of the river course form a third row of suction barrels, the first row of suction barrels, the second row of suction barrels and the third row of suction barrels are parallel to each other, and the second row of suction barrels and the third row of suction barrels are parallel in a dislocation manner.
The top of the suction barrel 6 is sequentially provided with a first pattern steel plate 7 and a cross truss, the top of the cross truss is used for placing steel plates for providing walking and mechanical movement for personnel, meanwhile, the cross truss is used for pressing the barrel cover 1 of the suction barrel 6, and the position, corresponding to the suction barrel 6, of the top of the cross truss is provided with a second pattern steel plate 10; the middle of the river course is equipped with pier foundation 11, and pier foundation 11 is located the bottom of cross truss.
The cross truss comprises a steel truss 8, a first I-steel 9-1 and a second I-steel 9-2, wherein the first I-steel 9-1 is vertically arranged at the bottom of the steel truss 8, and the second I-steel 9-2 is vertically arranged at the top of the steel truss 8.
Example 1
As shown in fig. 6-7, the construction platform for the silt ultra-soft soil underwater steel structure comprises a cross truss, a first pattern steel plate 7, a second pattern steel plate 10, suction barrels 6 and pier foundations 11, wherein 6 suction barrels are arranged on one side of a river channel along the long side direction to form a first row of suction barrels, 3 suction barrels are arranged in the middle of the river channel to form a third row of suction barrels, 3 suction barrels are arranged on the other side of the river channel to form a second row of suction barrels, the centers of the suction barrels of the same row of suction barrels are on the same straight line, the second row of suction barrels are parallel to the third row of suction barrels in a staggered manner, and the pier foundation 11 with the length of 9.6m and the width of 4.6m is arranged on the upper side of the left side part of the whole steel structure construction platform, which is 4m away from the lower side;
the cross truss comprises a steel truss 8, a first I-steel 9-1 and a second I-steel 9-2, wherein 3 steel trusses are respectively arranged at the left part and the right part along the long side direction of the river channel, and 5 first I-steel 9-1 are arranged at the bottom of the steel truss 8 in the direction perpendicular to the steel truss 8; a second I-steel 9-2 is arranged at the top of the steel truss 8 and at a position corresponding to the first I-steel 9-1; wherein the first I-steel and the second I-steel are both 20a I-steel;
the suction barrel 6 is arranged at the bottom of a part of first I-steel, a first pattern steel plate 7 is arranged at the top of the suction barrel 6 and then the first I-steel 9-1 is arranged on the first I-steel 9-1, a steel truss 8 is arranged on the steel truss 8, a second I-steel 9-2 is arranged on the steel truss 8, the steel truss 8 is connected with the first I-steel 9-2 and the second I-steel 9-2 through large bolts, a second pattern steel plate 10 with the same thickness as the first pattern steel plate 7 is arranged on the second I-steel 9-2, the spring 2 of the suction barrel 6 is compressed under the transmission of upper pressure, and the barrel cover 1 is tightly pressed on a barrel hole, so that the suction barrel is filled with sludge. The first pattern steel plate 7 and the second pattern steel plate 10 are arranged only when the suction barrel is arranged below, and are not arranged when the suction barrel is not arranged;
the suction barrel 6 comprises a barrel skirt 3, a barrel cover 1 and barrel holes 4, wherein no component is arranged in the barrel skirt 3, the thickness of the barrel cover is 0.1m, the thickness of the barrel wall of the suction barrel 6 is 0.1m, the barrel holes 4 are arranged at the middle position of the top of the barrel skirt 3 and are upwards protruded, grooves are formed in the outer wall of the barrel skirt 3, 4 springs 2 are uniformly arranged in the grooves along the circumferential direction, the springs 2 are tightly connected with the barrel cover 1, the springs 2 are thin and long in a free state, when the pressure of an upper pattern steel plate is transferred, the springs 2 are compressed and contracted to be short and thick, and the barrel cover can be tightly bonded with a rubber sealing strip 5 which is stuck with one circle along the barrel holes 4, so that the air tightness is ensured to be good.
A construction method of a steel structure construction platform in silt ultra-soft soil water comprises the following steps:
step one: after reaching a specified silt area, installing a cross truss, screwing the place where the steel truss contacts with the first I-steel and the second I-steel by bolts, firmly connecting the steel truss with the I-steel, checking whether a rubber sealing strip at a barrel hole of a suction barrel is full or not, accurately placing the suction barrel into the silt by a crane according to the requirement, ensuring stable placement of the suction barrel, and enabling the plane where the barrel hole is positioned to reach a horizontal state;
step two: placing a first pattern steel plate on the barrel cover of the suction barrel, then lifting the mounted cross truss by a crane, placing the cross truss on the sludge according to the requirement, and bringing pressure to the first pattern steel plate and the barrel cover of the suction barrel due to the influence of gravity when the bottom of the cross truss is contacted with the first pattern steel plate, wherein the spring under the barrel cover is pressed and converted into a tight and rough pressed state from a loose, long and straight free state, and the barrel cover is tightly adhered with the rubber sealing strip on the barrel hole under the pressure of the upper uniform load, and the peripheral side of the barrel cover is tightly contacted with the peripheral side of the top of the barrel skirt;
step three: sequentially placing second pattern steel plates on the tops of the corresponding second I-shaped steel plates according to the principle corresponding to the first pattern steel plates placed under the first I-shaped steel plates, wherein the tops of the second pattern steel plates are used for placing steel plates for providing walking and mechanical movement for personnel, if the steel plates without the second I-shaped steel plates and the second pattern steel plates thereon are encountered, uniformly laying strip steel bars on a steel truss, and then laying the steel plates thereon; ensuring the approximate level of the height of the whole construction platform;
step four: the corresponding protection railing is welded on the periphery of the paved platform, so that the safety of personnel is ensured, and corresponding construction is performed; constructing and building pier foundations between suction barrels at two sides by adopting a bored pile machine, and paving corresponding steel plates after the construction is finished, so that normal use can be started;
step five: after the platform is used, the second pattern steel plate, the cross truss and the first pattern steel plate are sequentially removed, the spring loses upper load pressure, upward bouncing resilience force is generated, the barrel cover is jacked up by the resilience force, then the suction barrel is sequentially hoisted by using the crane, and the whole construction flow is finished.
According to the construction platform for the steel structure in the silt ultra-soft soil water, the steel truss is connected with the I-steel through the bolts, the steel truss is pressed after the pressure is transmitted to the suction barrel through the pattern steel plate, the silt enters the suction barrel, and the silt gives an upward supporting force to the suction barrel, so that the whole suction barrel is equivalent to a pier foundation; the stability of the whole structure can be enhanced by matching with the constructed pier foundation, and the construction speed is greatly improved; when the barrel cover of the suction barrel is tightly pressed by pressure to protrude out of the barrel hole, the outermost circumference side of the barrel cover is contacted with the barrel skirt extending upwards, the barrel skirt has a supporting effect on the barrel cover, and the condition that the barrel hole is sunken into the barrel due to overlarge stress is avoided; along with the continuous pressing into the sludge, the negative pressure in the sludge can reach a very large state, and the existing special suction barrel cover with the spring can enable the spring to shrink when being pressed, and upward elasticity is generated when the upper pattern steel plate is taken away, so that the barrel cover can be easily jacked up, and the problem that the barrel body cannot be lifted after the suction barrel is constructed is solved; for the suction barrel, after the suction barrel is lifted by using a crane, the next construction can be continued.
The foregoing has outlined and described the basic principles, features, and advantages of the present invention. However, the foregoing is merely specific examples of the present invention, and the technical features of the present invention are not limited thereto, and any other embodiments that are derived by those skilled in the art without departing from the technical solution of the present invention are included in the scope of the present invention.
Claims (5)
1. The utility model provides an utilize silt ultra soft soil aquatic steel construction platform of suction bucket for shallow water silt river course, its characterized in that, suction bucket includes skirt (3), bung (4), bung (1), bung (4) set up in skirt (3) top, skirt (3) inside is hollow structure, skirt (3) top circumference is equipped with the recess, and bung (4) are concentric with the recess, the recess circumference is equipped with N spring (2) uniformly, and N is greater than or equal to 4, and bung (1) is connected through spring (2) with skirt (3); in a free state of the spring (2), the barrel cover (1) is separated from the barrel hole (4), and when the spring (2) is compressed under the stress, the barrel cover (1) is tightly attached to the barrel hole (4) and the top of the barrel skirt (3) in the circumferential direction;
a rubber sealing strip (5) is arranged in the circumferential direction of the barrel hole (4);
the construction platform comprises N suction barrels (6), wherein N is more than or equal to 4, the suction barrels (6) are respectively arranged at two sides of a river channel and in the middle of the river channel, a first pattern steel plate (7) and a cross truss are sequentially arranged at the top of each suction barrel (6), the top of each cross truss is used for placing steel plates for providing walking and mechanical movement for personnel, meanwhile, the cross truss is used for pressing a barrel cover of each suction barrel (6), and a second pattern steel plate (10) is arranged at the position, corresponding to the suction barrel (6), of the top of each cross truss;
the suction barrels on the two sides of the river channel respectively form a first row of suction barrels and a second row of suction barrels, the suction barrels in the middle of the river channel form a third row of suction barrels, the first row of suction barrels, the second row of suction barrels and the third row of suction barrels are parallel to each other, and the second row of suction barrels and the third row of suction barrels are staggered and parallel;
a pier foundation (11) is arranged in the middle of the river channel, and the pier foundation (11) is positioned at the bottom of the cross truss;
the cross truss comprises a steel truss (8), a first I-steel (9-1) and a second I-steel (9-2), wherein the first I-steel (9-1) is vertically arranged at the bottom of the steel truss (8), and the second I-steel (9-2) is vertically arranged at the top of the steel truss (8).
2. The construction platform for a sludge ultra-soft soil underwater steel structure using a suction barrel according to claim 1, wherein the number of the suction barrels (6) is 12, 6 of the suction barrels are arranged on one side of a river course in a row, 3 of the suction barrels are arranged on the other side of the river course in a row, and the other 3 of the suction barrels are arranged in the middle of the river course in a row.
3. The construction platform for the steel structure in the ultra-soft soil water of the sludge by utilizing the suction bucket according to claim 1, wherein the number of the steel trusses (8) is 6, the number of the first I-beams (9-1) is 5, the number of the second I-beams (9-2) is 5, the first I-beams (9-1) are symmetrically distributed at the bottom of the steel trusses (8) along the center line of the river, the second I-beams (9-2) are correspondingly distributed at the top of the steel trusses (8) with the first I-beams (9-1), and suction buckets (10) are respectively arranged at the bottoms of the first I-beams close to the two sides of the river and the bottoms of the first I-beams in the middle of the river.
4. A construction method of a steel structure construction platform in silt ultra soft soil water using a suction barrel according to any one of claims 1 to 3, characterized in that the construction method comprises the steps of:
step one: after reaching a specified silt area, installing a cross truss, checking whether a rubber sealing strip at a barrel hole of a suction barrel is full or not, accurately placing the suction barrel into the silt according to the requirement, and ensuring stable placement of the suction barrel and a plane where a barrel hole is positioned to be in a horizontal state;
step two: placing a first pattern steel plate on the barrel cover of the suction barrel, then lifting the mounted cross truss by using a crane, and placing the cross truss on the suction barrel according to the requirement;
step three: sequentially placing second pattern steel plates on the tops of the corresponding cross trusses according to the principle corresponding to the first pattern steel plates placed under the cross trusses, wherein the tops of the second pattern steel plates are used for placing steel plates for providing walking and mechanical movement for personnel, if the steel plates without second I-shaped steel and the second pattern steel plates on the second I-shaped steel are encountered, uniformly laying strip steel bars on the steel trusses, and then laying the steel plates on the steel trusses; ensuring the approximate level of the height of the whole construction platform;
step four: the corresponding protection railing is welded on the periphery of the paved platform, so that the safety of personnel is ensured, and corresponding construction is performed;
step five: after the platform is used, the second pattern steel plate, the cross truss and the first pattern steel plate are sequentially removed, the spring loses upper load pressure, upward bouncing resilience force is generated, the barrel cover is jacked up by the resilience force, then the suction barrel is sequentially hoisted by using the crane, and the whole construction flow is finished.
5. The construction method of the steel construction platform in the ultra-soft soil water by using the suction barrels according to claim 4, wherein in the fourth step, after the corresponding protection railings are welded, a bored pile machine is adopted to construct and build pier foundations between the suction barrels at the two sides, and after the construction is completed, the corresponding steel plates are paved, so that normal use can be started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211361812.XA CN115627744B (en) | 2022-11-02 | 2022-11-02 | Construction platform and construction method for steel structure in water of silt ultra-soft soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211361812.XA CN115627744B (en) | 2022-11-02 | 2022-11-02 | Construction platform and construction method for steel structure in water of silt ultra-soft soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115627744A CN115627744A (en) | 2023-01-20 |
| CN115627744B true CN115627744B (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202211361812.XA Active CN115627744B (en) | 2022-11-02 | 2022-11-02 | Construction platform and construction method for steel structure in water of silt ultra-soft soil |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879282A (en) * | 2015-05-29 | 2015-09-02 | 清华大学 | Pile-bucket combination structure foundation of offshore wind power generator |
| EP3147408A1 (en) * | 2015-09-22 | 2017-03-29 | Korea Electric Power Corporation | Marine foundation and construction method thereof |
| CN107724420A (en) * | 2017-09-22 | 2018-02-23 | 浙江大学 | A kind of new suction barrel shape foundation structure and its installation method for silt sea bed |
| EP3650686A1 (en) * | 2018-11-12 | 2020-05-13 | DEME Offshore BE N.V. | Device for supporting a number of elongate elements in lying position on a deck of a vessel |
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2022
- 2022-11-02 CN CN202211361812.XA patent/CN115627744B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879282A (en) * | 2015-05-29 | 2015-09-02 | 清华大学 | Pile-bucket combination structure foundation of offshore wind power generator |
| EP3147408A1 (en) * | 2015-09-22 | 2017-03-29 | Korea Electric Power Corporation | Marine foundation and construction method thereof |
| CN107724420A (en) * | 2017-09-22 | 2018-02-23 | 浙江大学 | A kind of new suction barrel shape foundation structure and its installation method for silt sea bed |
| EP3650686A1 (en) * | 2018-11-12 | 2020-05-13 | DEME Offshore BE N.V. | Device for supporting a number of elongate elements in lying position on a deck of a vessel |
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| CN115627744A (en) | 2023-01-20 |
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