CN217027192U - Marine anchoring barrel basis - Google Patents

Abstract

The utility model relates to an offshore anchoring barrel foundation in the field of ocean engineering, which comprises four parts, namely an anchoring barrel (1), an expanding member (2) and an anchoring barrel connection part (3) and a foundation connection part (4), wherein the anchoring barrel (1) is a steel pipe pile with a large diameter for offshore construction, the expanding member (2) is a member which passes through the side wall of the anchoring barrel (1) and extends to a rock mass or a soil mass (6) outside the anchoring barrel (1), and the anchoring barrel connection part (3) is a member or a member combination which firmly connects the anchoring barrel (1) and the expanding member (2), the utility model can firstly construct the anchoring barrel (1) in an ocean environment in a rapid way, isolate the dependence of subsequent construction on the ocean environment by using the anchoring barrel (1), and can fully play the bearing potential of shallow part or middle foundation soil of a seabed by constructing the expanding member (2) in the anchoring barrel (1), greatly reduces the construction cost of ocean engineering, saves materials and shortens the construction period.

Description

Marine anchoring section of thick bamboo basis

Technical Field

The utility model relates to an offshore anchoring cylinder foundation in the field of ocean engineering.

Background

The field of marine engineering refers to engineering activities performed in the ocean, including geological exploration, engineering construction and maintenance in the ocean. With the increasing marine activities, large-scale offshore wind power construction, harbor and cross-sea bridge construction, and various offshore operation platform construction are increasing day by day. Because the construction environment difference between the ocean and the land is large, the foundation engineering construction in the ocean is greatly influenced by the ocean environment such as the sea condition. At present, ocean foundation engineering mainly takes a steel pipe pile with a large diameter as a main part, the diameter of the steel pipe pile is large, the depth is deep, the diameter of some offshore wind power steel pipe pile foundations reaches 6-7 m, the depth reaches nearly one hundred meters, construction equipment is huge, and construction cost and material cost are high. For a deeper sea water area, a suction cylinder foundation is used in recent years, the diameter of the suction cylinder foundation used for offshore wind power reaches 30-40 m, and the offshore floating foundation also enters a trial stage. The over-high cost of foundation engineering in ocean engineering is one of the bottlenecks limiting the development of ocean engineering, and the research and development of ocean engineering foundation forms with small dependence on ocean environment, low cost and high construction speed are very urgent.

Disclosure of Invention

The utility model aims to provide a marine anchoring cylinder foundation, which can avoid using large construction ships and construction equipment, can greatly reduce the dependence of marine engineering on marine environment, and has high construction speed and low cost.

The offshore anchoring cylinder foundation comprises four parts, namely an anchoring cylinder, an expanding member and an anchoring cylinder connection and foundation connection part, wherein the anchoring cylinder is a large-diameter steel pipe pile for offshore construction, the expanding member is a member which passes through the side wall of the anchoring cylinder and extends out to the rock mass or the soil mass outside the anchoring cylinder, the anchoring cylinder connection is a member or member combination which firmly connects the anchoring cylinder and the expanding member, and the foundation connection is a member or part which is exposed on the rock mass or the soil mass and connects the anchoring cylinder or the expanding member with the structure on the upper part of the foundation.

In the marine anchoring cylinder foundation, the foundation connection can be one or a combination of a plurality of steel strands, high-strength fibers, carbon fiber cloth and flanges.

In the above-mentioned marine anchoring cylinder foundation, the above-mentioned anchoring cylinder is filled with one or several combinations of concrete, reinforced concrete, cement paste or mortar and resin.

In the marine anchoring cylinder foundation, the anchoring cylinder is vertically placed in a rock body or a soil body, and the expanding member is one or a combination of anchor rods, piles, H-shaped steel, steel pipes or reinforced concrete prefabricated members constructed in the rock body or the soil body.

The marine anchoring barrel foundation of the utility model provides an operation surface for the construction of the expanding member through the construction of the anchoring barrel, basically eliminates the influence of marine environment on the construction of foundation engineering in the construction stage of the expanding member, adopts the large-diameter steel pipe short pile for the anchoring barrel, greatly reduces the construction cost and the construction period, improves the bearing capacity of the foundation by arranging the expanding member, and has the advantages of high construction speed, low construction cost and reliable quality.

Drawings

FIG. 1 is a schematic cross-sectional view of the marine anchoring barrel infrastructure used in the first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a foundation expanding position configuration of an offshore anchoring cylinder used in a first embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of the foundation structure of an offshore anchoring cylinder for use in a second embodiment of the present invention;

FIG. 4 is a schematic view showing the arrangement of the pile location at the bottom of the foundation anchoring cylinder of the marine anchoring cylinder according to the second embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of the foundation construction of an offshore anchoring cylinder for use in a third embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view showing the construction of the diameter-expanded position of the foundation of the offshore anchoring cylinder used in the third embodiment of the present invention.

Detailed Description

As a first embodiment of the present invention, a first marine anchoring cylinder foundation structure and a construction method thereof according to the present invention will be described with reference to fig. 1 and 2. First, the structural construction of the foundation of the first offshore anchoring cylinder of the present invention will be described. The offshore anchoring cylinder foundation comprises four parts, namely an anchoring cylinder (1), an expanding member (2) and an anchoring cylinder connector (3) and a foundation connector (4), wherein the anchoring cylinder (1) is a steel pipe pile with a large diameter in offshore construction, the expanding member (2) is a member which penetrates through the side wall of the anchoring cylinder (1) and extends out of a rock body or a soil body (6) outside the anchoring cylinder (1), the anchoring cylinder connector (3) is a member or a member combination for firmly connecting the anchoring cylinder (1) and the expanding member (2), and the foundation connector (4) is a member or a part which is exposed above the rock body or the soil body (6) and connects the anchoring cylinder (1) or the expanding member (2) with a structure on the upper portion of the foundation. In the embodiment, the basic connection (4) can be one or a combination of a plurality of steel stranded wires, high-strength fibers, carbon fiber cloth and flanges. In the embodiment, after the construction of the expanding component (2) of the anchoring cylinder (1) is finished, one or a combination of several of concrete, reinforced concrete, cement paste or mortar and resin can be filled in the anchoring cylinder (1), so that the filler becomes a part of the anchoring cylinder connection (3) and the strength and rigidity of the connection part can be enhanced. In the embodiment, the anchoring cylinder (1) is vertically placed in a rock body or a soil body (6), the expanding member (2) is one or a combination of a plurality of anchor rods, piles, H-shaped steel, steel pipes or reinforced concrete prefabricated members constructed in the rock body or the soil body (6), and when the expanding member (2) is a prefabricated member, the construction speed is high, and the anchor is suitable for offshore construction. The offshore anchoring cylinder foundation introduced in the embodiment can be used for directly driving a prefabricated large direct steel pipe pile into a rock body or a soil body (6) to a certain depth after being transported to a construction site, the construction process is mature, then the large-diameter steel pipe pile is used for providing an operation space, the marine environment which is not beneficial to subsequent engineering construction is isolated by using the pile wall of the steel pipe pile, and the construction of the diameter expanding component (2) is carried out inside the large-diameter steel pipe pile. The expanding member (2) can give full play to the bearing potential of the seabed shallow part and the medium deep foundation, the expanding member (2) is constructed by taking the anchoring cylinder (1) as an operation surface, and the rock mass or soil mass (6) at a far position or a deep position is utilized to provide the compression resistance, the pulling resistance, the overturning resistance or the sliding resistance bearing capacity required by part of ocean foundation engineering, so that the huge cost caused by the overlong anchoring cylinder (1) and the material and construction required huge cost are avoided, and the engineering cost can be greatly reduced. The following section of this embodiment describes the construction method of the foundation of the marine anchoring cylinder according to the present invention. The method comprises the steps of firstly, conveying a large-diameter steel pipe to a preset position by a ship, vertically driving the large-diameter steel pipe into a rock body or a soil body (6) below a seabed by a certain depth by one or a combination of a hole leading method, a vibration method, a hammering method and a static pressure method, enabling the upper edge of the large-diameter steel pipe to be higher than a sea level (5) by a certain height, and completing construction of an anchoring cylinder (1) in the sea. In the embodiment, compared with the direct construction of a large-diameter steel pipe pile foundation, the length of a steel pipe can be greatly shortened, so that the material, equipment and construction difficulty required by piling can be greatly reduced, the construction period can be greatly shortened, and especially the requirement on construction equipment can be greatly reduced. And finishing the first step and entering the second step. In the step, rock mass or soil mass in the anchoring cylinder (1) is removed to the depth of the expanding member (2), and an operation surface is provided for construction of the expanding member (2) in the anchoring cylinder (1). In this step, for convenience of construction, water above a construction operation surface is often cleaned, and a concrete cushion layer can be constructed below the diameter expanding member (2) for subsequent construction. And (5) finishing the second step and entering the third step. In the step, holes are formed on the wall of the anchoring cylinder (1) or reserved holes on the side wall of the anchoring cylinder (1) are utilized, the anchoring cylinder (1) is utilized to support peripheral rock masses or soil bodies (6), if necessary, a precipitation well (8) shown in figure 1 can be constructed, precipitation measures are taken to pump and reduce underground water near a construction operation surface, and water stopping measures can also be taken to keep the construction operation surface available. In this step, water stop construction can be performed at the opening of the side wall of the anchoring cylinder (1) by a hole pressure reaction construction method. In the step, a water stop pad with a water stop function can be placed at the opening of the side wall of the anchoring cylinder (1) for stopping water. And finishing the third step and entering the fourth step. In this step, an expanding member (2) is constructed in the anchoring cylinder (1) toward the rock or soil (6) outside the anchoring cylinder (1). In the embodiment, the expanding component (2) can be arranged horizontally or obliquely, as shown in fig. 1 and fig. 2, the expanding component (2) can utilize the side wall of the anchoring cylinder (1) to provide construction reaction force, and can be driven into the soil body by a static pressure or vibration mode, and can also be used for completing construction by a drilling mode, and the construction operation surface can be protected by precipitation or water stop construction in the third step. And finishing the fourth step and entering the fifth step. In this step, the diameter-expanding member (2) is firmly connected to the anchor cylinder (1), and the construction of the anchor cylinder connection (3) is completed. In the step, one or a plurality of combinations of concrete, reinforced concrete, cement paste or mortar and resin can be filled in the hollow part of the anchoring cylinder (1) or the diameter-expanding member (2) to form the anchoring cylinder connection (3), the construction speed is high, the quality is stable, when the section steel, the steel pipe or the reinforced concrete prefabricated member is adopted as the diameter-expanding member (2), after the construction of the diameter-expanding member (2) is finished, the diameter-expanding member (2) can be connected by using the steel bar (7), then the concrete is poured, and the combined structure is formed to be used as the anchoring cylinder connection (3). In the embodiment, considering the particularity of the ocean engineering, self-compacting concrete or grouting material can be adopted as the filler, so that the construction period is shortened. Thereby completing the foundation construction of the marine anchoring cylinder of the utility model.

As a second embodiment of the present invention, the construction of a second marine anchoring cylinder foundation and its construction method of the present invention will be described with reference to FIGS. 3 and 4. This embodiment is similar to the first embodiment described above, but differs therefrom in that in this embodiment, a pile is used as the diameter-expanding member (2), a steel pipe pile with a high construction speed can be used as the diameter-expanding member (2), a steel pipe with a large diameter [ i.e., an anchor cylinder (1) ] can be lengthened as compared with a conventional structure or member for offshore foundation, and the anchor cylinder connection (3) is added, so that the amount of steel used can be reduced, and particularly, the requirements for a pile driving vessel and pile driving equipment can be greatly reduced, and the huge construction cost required for offshore construction can be reduced.

As a third embodiment of the present invention, the construction of the third marine anchoring cylinder foundation and its construction method of the present invention will be described with reference to FIGS. 5 and 6. This embodiment is similar to the first embodiment described above, and is different in that in this embodiment, pipe jacking work is performed in the anchoring cylinder (1) using the anchoring cylinder (1) also as a starting well for pipe jacking work, and the pipe jacking work completed in the work is used as a diameter expanding member (2). In the embodiment, due to the protection effect of the anchoring cylinder (1), the influence of the marine environment on the pipe jacking construction can be basically eliminated during the pipe jacking construction. In this embodiment, a pipe jacking of a larger diameter can be constructed as the diameter-expanding member (2). If necessary, the jacking pipe can be used as the anchoring cylinder (1), an anchor cable shown in figure 5 can be constructed in the jacking pipe to serve as a basic connection (4), and the anchor cable can be firmly connected with the jacking pipe through an anchorage device (9). Other forms of downward, horizontal or oblique diameter-expanding members (2) may be constructed in the pipe jacking. In the embodiment, if a single anchoring cylinder (1) is adopted, the cutting blade part of the jacking machine head needs to be abandoned in the rock body or the soil body (6), and if necessary, another anchoring cylinder (1) can be arranged as a receiving well for jacking construction. In the embodiment, the top pipe can be filled with concrete to increase the bearing capacity of the top pipe as the diameter expanding member (2).

This patent includes, but is not limited to, other similar methods and apparatus that may be substituted by one skilled in the art.

Claims (4)

1. An offshore anchoring cylinder foundation is characterized by comprising four parts, namely an anchoring cylinder (1), an expanding member (2) and an anchoring cylinder connection (3) and a foundation connection (4), wherein the anchoring cylinder (1) is a large-diameter steel pipe pile for offshore construction, the expanding member (2) is a member which penetrates through the side wall of the anchoring cylinder (1) and extends out to a rock body or a soil body (6) outside the anchoring cylinder (1), the anchoring cylinder connection (3) is a member or a member combination which firmly connects the anchoring cylinder (1) with the expanding member (2), and the foundation connection (4) is a member or a part which is exposed above the rock body or the soil body (6) and connects the anchoring cylinder (1) or the expanding member (2) with a structure on the upper portion of the foundation.

2. The marine anchoring cylinder foundation as claimed in claim 1, wherein said foundation connection (4) is one or a combination of steel strands, high tensile fibers, carbon fiber cloth, flanges.

3. The marine anchoring cylinder foundation as claimed in claim 1, wherein said anchoring cylinder (1) is filled with one or more of concrete, reinforced concrete, cement paste or mortar, and resin.

4. The marine anchoring cylinder foundation as claimed in claim 1, wherein said anchoring cylinder (1) is vertically placed in the rock or soil mass (6), and said expanding member (2) is one or more of anchor rod, pile, H-beam, steel pipe or reinforced concrete prefabricated member constructed in the rock or soil mass (6).

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