KR20040105541A - A box for construction on the sea and method for construction working construction on the sea - Google Patents

Abstract

PURPOSE: A construction method for a marine structure using a box is provided to reduce the cost and time required for construction, to heighten the stability on a structure by resisting external force such as wave energy after construction, to resolve problems by environmental pollution and to exclude maintenance work after construction. CONSTITUTION: The construction method for a marine structure using a box comprises the steps of: locating a box(100), which has many housing spaces on a body made of positive buoyant materials and setting holes(112) perforated vertically on the remaining part except the housing spaces, on the soft ground; inserting a steel pipe pile(120) into the setting hole(112) of the body to make the lower end of the steel pipe pile(120) supported to the firm ground; fixing a hardener injector(130) provided with injection holes(131) to an inlet of the setting hole(112) to inject liquefied hardener; descending the box(100) to the appointed depth; filling up the steel pipe pile(120) with hardener by injecting liquefied hardener through the injection hole(131) of the hardener injector(130) from the outside; and filling up the housing spaces of the box(100) with weights.

Description

A box for construction on the sea and method for construction working construction on the sea}

The present invention relates to a ship for an offshore structure and a method for constructing an offshore structure using the same, and more particularly, the construction cost is low, the construction period can be shortened, the stability of the structure can be increased, and the environmental pollution problem caused by the construction can be eliminated. Also, it is sufficiently resistant to external forces such as wave force after construction, which ensures the stability of the structure during construction, and relates to a ship for a marine structure that requires no maintenance after construction and a construction method of the marine structure using the same.

Structures such as breakwaters, shores, berths, silos, etc. installed on coasts or rivers have various difficulties in their construction due to the soft layer or soft ground existing in these areas.

The soft layer is necessary to improve the ground of the soft layer because it causes the settlement or unequal settlement of the structure, which significantly affects the stability of the structure.

In order to improve the soft layer, the chemical treatment method of injecting or perturbing chemicals or other additives into the soft layer to solidify or solidify it in the field, and the replacement of the soft layer after completely removing the soft layer and replacing it with high quality soil or alternative materials such as sand or gravel rock Method is used.

However, these methods generally have high costs for soft ground treatment, are cumbersome to construct, and require a lot of construction time.

In particular, the conventional technology for constructing offshore structures on the soft ground is subject to the danger of falling or collapsing of the structures during construction when strong waves such as large winds blow during construction. It was not prepared.

In addition, the above-mentioned chemical treatment or substitution method has caused various side effects such as destroying nearby fisheries or damaging marine tourism resources by causing severe environmental pollution by harmful substances or turbidity in the nearby coastal areas without exception.

The present invention was devised to solve the above problems, the construction cost is low, the construction period can be shortened, the stability of the structure can be improved, the environmental pollution problem caused by the construction, such as wave strength after construction The object of the present invention is to provide sufficient resistance to external forces to ensure the stability of the structure during construction, and to provide a method for constructing a marine structure using the same and a marine structure enclosure without maintenance after construction.

1 is a perspective view showing a first embodiment of a marine structure enclosure according to the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a cross-sectional view taken along the line B-B in FIG.

Figure 4 is an external perspective view of the solid fire injection port of the present invention.

5 is a cross-sectional view of the solid fire injection port shown in FIG.

6 is an external perspective view of the steel pipe pile according to the present invention.

Figure 7 (a) to (h) is a view showing the procedure for constructing the offshore structure using the enclosure according to an embodiment of the present invention.

8 is a cross-sectional view showing a state in which the housing according to the invention the construction completed.

Figure 9 is a perspective view showing the appearance of the enclosure according to another embodiment of the present invention.

10 is a cross-sectional view showing the enclosure of the present invention according to another construction method.

11 is a cross-sectional view showing the enclosure of the present invention according to another construction method.

12 is a cross-sectional view showing the enclosure of the present invention according to another construction method.

<Description of main parts of drawing>

100: enclosure 110: body

111: storage space 112: installation worker

112a: uneven portion 114: communication hole

115: opening and closing plate 116: fastening bolt

120: steel pipe pile 130: solid fire injection hole

131: solid fire injection hole 140: heavy material

The marine structure enclosure according to the present invention for achieving the above object, in the enclosure for forming a structure on the sea, it is made of a body having a predetermined shape, the body has a predetermined storage space opening the upper side A plurality of depths are formed, and a plurality of installation holes are formed to penetrate up and down so that the steel pipe pile is inserted into the remaining portion except the storage space.

According to one embodiment of the construction method of the marine structure according to the present invention for achieving the above object is formed a plurality of storage spaces with a predetermined depth of the upper side of the body made of positive buoyancy material, except the storage space Positioning the enclosure having the installation hole penetrated up and down in the remaining portion on the soft ground; Inserting a steel pipe pile of a predetermined length into the installation holes of the body to support the lower end in a solid ground; A solidified fuel inlet fixing step of fixing and installing a solidified fuel inlet having an injection hole for injecting a liquid solidified material into the inlet sides of the installation holes; A lowering step of lowering the lowering body by a predetermined depth; A solid fire injection step of injecting a liquid solid into the steel pipe pile by injecting a solid liquid into the steel pipe through an injection hole of the solid fire inlet; And filling a heavy object in the storage spaces of the enclosure.

Another embodiment of the construction method of the marine structure according to the present invention for achieving the above object, the sea water flows to the other outer wall surface through the receiving space formed therein from one outer wall surface of the body made of negative buoyancy material A plurality of communication holes are formed on one side wall and the other side wall of the body so as to communicate with the storage space, and one side portion and the other side portion of the body is provided with an opening and closing plate for closing the communication holes, the upper and lower parts of the body except the storage space. Positioning the enclosure formed through the furnace installation hole on the soft ground; Inserting a steel pipe pile of a predetermined length into the installation holes formed in the body of the enclosure to support the lower end portion in the solid ground; A step of fixedly installing a solids injection hole having an injection hole for injecting a liquid solids in the inlet side of the installation holes; Removing the opening and closing plate to lower the enclosure by a predetermined depth; And a solidification injection step of injecting liquid solidification into the steel pipe pile by injecting a liquid solidification through an injection hole of the solidification inlet from the outside.

Hereinafter, preferred embodiments of the offshore structure according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a first embodiment of a marine structure enclosure according to the present invention, Figure 2 is a cross-sectional view of the line AA of Figure 1, Figure 3 is a cross-sectional view of the line BB of Figure 1, Figure 4 is a high Fig. 5 is a sectional view of the fire inlet of the fire inlet shown in Fig. 4, Fig. 6 is an external perspective view of the steel pipe pile according to the present invention, Figs. 7 (a) to (h) are views of the present invention. 8 is a view showing the sequence of construction of the offshore structure using the enclosure according to an embodiment, Figure 8 is a cross-sectional view showing a state in which the enclosure according to the present invention is completed, Figure 9 is an enclosure according to another embodiment of the present invention 10 is a cross-sectional view showing the enclosure of the present invention according to another construction method, FIG. 11 is a sectional view showing the enclosure of the present invention according to another construction method, and FIG. 12 is the enclosure of the present invention. According to another construction method It is a burnt section.

The marine structure enclosure according to the first embodiment of the present invention, as shown in Figures 1 and 3, is made of a body 100 of a predetermined shape made of a material of positive buoyancy (Positive Buoyancy) to float in water and The body 100 has a plurality of storage spaces 111 having an upper side opened to a predetermined depth, and the steel pipe pile 120 shown in FIG. 6 is inserted into the remaining portions except the storage space 111. The installation hole 112 is formed through a plurality of up and down.

Here, the body 100 is shown in the present invention in a rectangular parallelepiped shape, but is not limited to this, of course, may have various embodiments.

On each of the inner surfaces of the installation hole 112, as shown in Figure 3, the uneven portion 112a is formed up and down.

Here, a predetermined gap is formed between an inner surface of the installation hole 112 and an outer surface of the steel pipe pile 120. In addition, a predetermined gap is also formed with the uneven portion 112a formed on the inner surface of the installation hole 112.

That is, the steel pipe pile 120 is not loosely inserted into the installation hole 120 is loose.

Therefore, the solidified material mentioned later flows into the said clearance gap.

The construction of the marine structure using the enclosure of the first embodiment of the present invention configured as described above will be described with reference to FIG. 7.

First, as shown in FIG. 7 (a), when the enclosure 100 is positioned in the ocean on the soft ground 200, the enclosure 100 made of positive buoyancy material floats on the water in a floating state.

Here, before carrying out the step of supporting the enclosure 100 in the ocean, it is possible to further proceed to remove a portion of the soft ground 200 as shown in Figure 7 (a) using a known dredging equipment. .

Meanwhile, as shown in FIG. 10, the soft ground 200 may not be removed.

When proceeding as described above, the distance (h1) between the soft ground 200 and the solid ground 300, which is partially removed from the distance h between the first soft ground 200 and the solid ground 300 is closer. You lose.

Then, as shown in Figure 7 (b) (c), the steel pipe pile 120 is inserted into the mounting holes 112 formed in the body 110 of the housing 100, the lower end of the solid ground 300 Carry out the support process.

Here, the process of driving the lower end of the steel pipe pile 120 into the solid ground 300 proceeds using a separate device.

In more detail, the separate device is a pressing portion (not shown) of the punching machine (not shown) is inserted into the installation hole 112 of the body 110, the steel pipe pile is already inserted into the installation hole 112 When the upper end of the 120 is punched, the lower end of the steel pipe pile 120 is slowly inserted into and supported by the solid ground 300.

7 (b) and (c) shows only a state in which two steel pipe piles 120 are installed for convenience of description.

Next, as shown in Fig. 7 (d) (e), a solidified material having an injection hole 131 for injecting a liquid solidified material in the inlet side of the installation holes 112 of the body 110 Proceed to the solidified fuel inlet fixing step of fixing the inlet 130.

In more detail, as shown in Figure 7 (d), after inserting the solid material injection port 130 in the inlet side of the installation hole 112, as shown in Figure 7 (e), When the solidified material 132, such as mortar or concrete, is injected into the space between the outer surface of the installation 130 and the inner surface of the installation hole 112, and then hardened, the solidification injection hole 130 is the inlet of the installation hole 112 It is fixed in the side.

On the other hand, instead of fixing the solidified fuel inlet 130 using a liquid solidified material as described above, although not shown, it can be fixed by injecting the solidified fuel inlet 130 in the inlet side of the installation hole 112 Of course.

In this case, there is an advantage in that the step of separately injecting the solidified material in the liquid phase can be omitted.

After completing the fixing of the solid material injection port 130 as described above, as shown in Figure 7 (f), proceeds to the lowering step of lowering the enclosure 100 by a predetermined depth.

The method of proceeding with the lowering step of the enclosure is to put a predetermined amount of weight 140 so that only the lower portion of the receiving space 111 of the body 110 is filled.

When the predetermined amount of weight 140 is introduced as described above, the enclosure 100 itself sinks to a predetermined depth, as shown in FIG. 7 (f) by the weight of the weight 140.

Here, the distance between the lower surface of the solidified material injection port 130 and the upper end of the steel pipe pile 120 can be adjusted by varying the amount of a predetermined amount of heavy material filled in the storage spaces 111.

In the embodiment of the present invention as shown in Figure 7 (f) the distance between the lower surface of the solid fire injection port 130 and the top of the steel pipe pile 120 is zero, that is, the lower surface and the steel pipe of the solid fire injection port 130 The upper portion of the pile 120 was filled with a predetermined amount of heavy material.

Here, even if the upper end of the steel pipe pile 120 is in contact with the lower end of the solid injection hole 130 to impact the solid injection hole 130, the solid injection hole 130 of the body 110 by the solid fire Since it is fixedly installed in the inlet side of the installation hole 112, this solid-fire injection port 130 will not be separated from the installation hole 112. FIG.

On the other hand, after performing the same process as in Figure 7 (f), as shown in Figure 7 (g), such as mortar or concrete into the solid fire injection hole 131 of the solid fire injection port 130 When the solidified material 133 is injected, the solidified material is filled into the steel pipe pile 120 while descending along the inside of the solidified material injection hole 131.

Here, in the process in which the solidified material is filled into the steel pipe pile 120 is also introduced between the outer surface of the steel pipe pile 120 and the inner surface of the installation hole 112, the steel pipe pile 120 in the installation hole 112 Make sure that it is completely fixed.

In addition, the solidified material 133 is introduced between the uneven portion 112a formed on the inner wall surface of the installation hole 112, so that the steel pipe pile 120 is fixed to the inner wall of the installation hole 112.

Finally, after completing the process of filling the solidified material in the steel pipe pile 120 as described above, as shown in Figure 7 (h), the storage space of the body 110 partially filled by the weight (140) ( 111) by filling the weight 141 is filled to complete the construction method of the offshore structure of the present invention.

On the other hand, in the construction method of the present invention as described above, as shown in Figure 8, after the soft ground is removed sand or sand stone (400) around the lower end of the enclosure 100 seated on the upper surface of the solid ground exposed Of course, it is possible to proceed further to encircle and fix.

And, as shown in Figure 11, after the step of inserting the steel pipe pile 120 into the installation holes 112 formed in the body 110 of the housing 100, the steel pipe pile 120 Of course, it may further include the step of inserting the reinforcing reinforcing bars 125 in the interior thereof.

The description so far has described a method for constructing an offshore structure using the enclosure according to the first embodiment of the present invention.

Hereinafter, the housing according to the second embodiment of the present invention will be described.

The enclosure 100 of the second embodiment of the present invention, unlike the enclosure of the first embodiment, the seawater to the other outer wall surface through the receiving space 111 formed therein from one outer wall surface of the body 110 made of a negative buoyancy material. A plurality of communication holes 114 are formed in one wall surface and the other wall surface of the body 110 to communicate with the storage space 111 so as to flow, and the communication holes 114 are formed at one side and the other side of the body 110. ) Is provided with an opening and closing plate (115).

The opening and closing plate 115 is fastened through a plurality of fastening bolts 115a, and the communication hole 114 is coupled by the opening and closing plate 115 through a water sealing ring 115b.

A method of constructing an offshore structure using the housing 100 of the second embodiment of the present invention configured as described above will be described.

First, prior to the description, a separate construction sequence drawing will be omitted because it can be sufficiently inferred from the construction method of the first embodiment of the present invention.

The construction method of the second embodiment of the present invention, one side of the body 110 so that the seawater flows from one side outer wall surface of the body 110 of the negative buoyancy material to the other outer wall surface through the receiving space 111 formed therein A plurality of communication holes 114 are formed on the wall surface and the other side wall so as to communicate with the storage space 111, and the opening and closing plate 115 closing the communication hole 114 on one side and the other side of the body 110. ) Is provided, and positioning the housing 100 through which the installation hole 112 is penetrated up and down in the remaining portion except for the storage space 111 to the soft ground; Inserting a steel pipe pile (120) of a predetermined length into the installation holes (112) formed in the body (110) of the enclosure (100) to support the lower end in a solid ground; Fixing the solids injection hole 130 having an injection hole 131 formed therein for injecting liquid solids into the inlet side of the installation holes 112; Removing the opening and closing plate 115 and lowering the enclosure 100 by a predetermined depth; Injecting the solidified liquid in the liquid through the injection hole 131 of the solidified material injection port 130 from the outside is made of a solidified material injection step for filling the solidified material into the steel pipe pile (120).

Here, the step of removing the opening and closing plate 115 and lowering the enclosure 100 by a predetermined depth is different from the step of lowering the enclosure 100 in the first embodiment of the present invention described above, and the rest are all the same. The rest of the construction method will be omitted.

The reason why the opening and closing plate 115 is removed is that even if the enclosure 100 is a benign reference, the buoyancy is floating in the ocean. When the opening and closing plate 115 is removed, the communication hole 114 is connected to the enclosure 100. It is in communication with the inside of) and the seawater is no longer buoyant as it is no longer buoyant.

On the other hand, the present invention described so far, as shown in Figures 11 and 12, can be installed in a bottom facility such as a port or a quay wall 500, of course.

As described above, according to the present invention, the construction cost is low, the construction period can be shortened, the stability of the structure can be increased, the environmental pollution problem caused by the construction can be eliminated, and the construction is sufficiently resistant to external forces such as wave force after construction. The stability of the structure is guaranteed, and no maintenance is required after construction.

Claims (17)

In an enclosure for forming a structure at sea, It is made of a body 100 having a predetermined shape, The body 100 is formed with a plurality of storage spaces 111 having an upper side opened to a predetermined depth, the installation hole 112 up and down so that the steel pipe pile 120 is inserted into the remaining portion other than the storage space 111. The ship for offshore structures, characterized in that a plurality of penetrating through. The method of claim 1, The inner surface of the installation hole 112 is an offshore structure housing, characterized in that the concave-convex portion (112a) is formed up and down. The method according to claim 1 or 2, The body 110 is a housing, characterized in that made of a material of positive buoyancy (Positive Buoyancy) to float in water. The method according to claim 1 or 2, The body 110 is a housing, characterized in that made of a material of negative buoyancy (Negative Buoyancy) to sink in water. The method of claim 4, wherein Communicating holes to communicate with the storage space 111 on one side wall and the other side wall surface of the body 110 so that sea water flows from one outer wall surface of the body 110 to the other outer wall surface through the storage space 111. 114) are formed, One side and the other side of the body 110, characterized in that the opening and closing plate 115 is detachably coupled to open and close the communication hole (114). A plurality of storage spaces 111 having an upper side of the body 110 made of a positive buoyancy material are opened to a predetermined depth, and the installation holes 112 are vertically formed through the remaining portions except the storage space 111. Positioning the enclosure 100 in soft ground; Inserting a steel pipe pile (120) of a predetermined length into the installation holes (112) of the body (110) to support its lower end in a solid ground; A solid fire injection hole fixing step of fixing and installing a solid fire injection hole (130) having an injection hole (131) for injecting a liquid solid fire in the inlet side of the installation holes (112); A lowering step of lowering the enclosure 100 by a predetermined depth; A solid material injection step of injecting a liquid solid material through the injection hole 131 of the solid material injection hole 130 to fill the solid material into the steel pipe pile 120; Method of constructing a marine structure, characterized in that it comprises the step of filling a heavy object in the receiving space (111) of the enclosure (100). The storage space 111 on one wall surface and the other wall surface of the body 110 so that sea water flows from one outer wall surface of the body 110 made of voice buoyancy material to the other outer wall surface through the storage space 111 formed therein. A plurality of communication holes 114 are formed to communicate with each other, one side and the other side of the body 110 is provided with an opening and closing plate 115 closing the communication hole 114, the storage space 111 Positioning the enclosure 100 through which the installation holes 112 penetrate up and down in the remaining portions except the soft ground; Inserting a steel pipe pile (120) of a predetermined length into the installation holes (112) formed in the body (110) of the enclosure (100) to support the lower end in a solid ground; Fixing the solids injection hole 130 having an injection hole 131 formed therein for injecting liquid solids into the inlet side of the installation holes 112; Removing the opening and closing plate 115 and lowering the enclosure 100 by a predetermined depth; Marine structure, characterized in that it comprises a solid fire injection step of filling the solid pipe into the steel pipe pile 120 by injecting a liquid solid through the injection hole 131 of the solid fire injection port 130 from the outside Construction method. The method according to claim 6 or 7, And removing the soft ground at sea before performing the step of placing the enclosure 100 on the soft ground. The method of claim 8, The solidified fire inlet fixing step, After inserting the solid material injection port 130 into the inlet side of the installation holes 112, injecting the solid material into the space between the outer surface of the solid material injection port 130 and the inner surface of the installation hole 112 Construction method of a marine structure, characterized in that consisting of the step of hardening. The method of claim 8, The solidified fire inlet fixing step, The construction method of the offshore structure, characterized in that the inlet side of the installation hole 112 is fixed by injecting the solid material injection port (130). The method of claim 6, The lowering step of the enclosure, Method of constructing a marine structure, characterized in that a predetermined amount of heavy material is added so that only a portion is filled in the lower portion of the receiving space (111) of the body (110). The method of claim 11, The construction method of the marine structure, characterized in that for controlling the separation distance between the lower surface of the solidified fuel injection port 130 and the upper end of the steel pipe pile 120 by varying the amount of heavy material to be filled in the receiving space (111). . The method according to claim 6 or 11, wherein The heavy material is a construction method of a marine structure, characterized in that using sand or sandstone. The method of claim 8, The solidified material is a construction method of the marine structure, characterized in that using mortar or concrete. The method of claim 8, Construction method of the marine structure, characterized in that to form the uneven portion (112a) up and down on the inner wall surface of the installation hole (112). The method of claim 8, After the soft ground is removed, the construction method of the marine structure, characterized in that the surrounding around the lower end of the enclosure 100 seated on the upper surface of the solid ground exposed by sand or sandstone. The method according to claim 6 or 7, After the step of inserting the steel pipe pile 120 into the installation holes 112 formed in the body 110 of the housing 100, the reinforcing steel 125 in the interior of the steel pipe pile 120 Construction method of the offshore structure further comprising the step of inserting.