KR101666655B1 - Removal method of island - Google Patents

Removal method of island Download PDF

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Publication number
KR101666655B1
KR101666655B1 KR1020150162391A KR20150162391A KR101666655B1 KR 101666655 B1 KR101666655 B1 KR 101666655B1 KR 1020150162391 A KR1020150162391 A KR 1020150162391A KR 20150162391 A KR20150162391 A KR 20150162391A KR 101666655 B1 KR101666655 B1 KR 101666655B1
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KR
South Korea
Prior art keywords
water
removal
island
water surface
aqueduct
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Application number
KR1020150162391A
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Korean (ko)
Inventor
김진한
채봉철
정대기
김제춘
김민근
임기영
김대영
임화진
욱 최
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(주)대우건설
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
    • E02B3/026—Removing solid rocks
    • 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
    • E02D17/16—Loosening of soil or rock, under water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/02—Restraining of open water

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Revetment (AREA)

Abstract

The present invention provides an aeration structure installation step (S100) for installing an aeration structure (200) at a boundary (20) between a central portion (110) of the island (10) and the water portion (120); A central portion removing step (S200) of removing the central portion (110) by landing while water is prevented from being introduced by the water damper structure (200); And removing the water portion 120 (S300).
Therefore, since a part of the island is removed by landing, it is possible to secure a stable working condition and to shorten the construction period.
In addition, the islands removal method according to the present invention is an environmentally friendly technology that can shorten the construction time and minimize the restoration time because the entire process time is short.

Description

{REMOVAL METHOD OF ISLAND}

Field of the Invention The present invention relates to a construction field, and more particularly, to a method for removing an island.

For the safe operation of the ship, a water channel of a certain depth must be secured.

When an island exists in a waterway, it is necessary to remove the island to secure a waterway. Conventionally, it is common to perform a removal operation (underwater operation) using a ship.

However, the underwater work is affected by weather conditions, the work time is long, and the amount of daily work is small, so that the whole process time becomes long.

The present invention minimizes underwater work, maximizes land work, improves work speed and shortens overall construction time.

In order to solve the above problems, the present invention provides an aqueduct structure installation step (S100) for installing an athermal structure (200) at a boundary portion (20) between a central portion (110) of the island (10) A central part removing step (S200) of removing the central part (110) by land working while the water flow is prevented by the water line structure (200); And a water removing step (S300) of removing the water part (120).

In the step S100, the water wall 200a may be continuously installed along the boundary 20.

In the step S100, it is preferable that the water wall 200a is installed discontinuously along the boundary 20.

The aqueduct structure 200 of the aqueduct structure installation step S100 is preferably formed by a combination of the aqueduct wall 200a and the impermeable ground 200b.

The aqueduct structure 200 is preferably installed higher than the maximum wave height of the water surface 30 in the step S100.

In the step S100, the aqueduct structure 200 is preferably installed deeper than the removal depth h.

The central part removal step S200 includes a water surface top removal step S210 for removing the water surface upper part 111 formed from the upper part of the central part 110 to the upper part of the water column structure 200, (S220) for removing the lower surface (112) of the water formed up to the removal depth (h) from the lower surface depth (h).

Preferably, the water surface lowering step (S220) after the water surface top removing step (S210) is divided into a layer structure sequentially downward of the water surface lower part (112).

In the water removing step S300, the water submerged portion 120 is pierced through the water receiving structure 200 in the underground work space of the water surface lower region formed by the water underground removing step S220, It is preferable to carry out the land removal method (A).

The water removal step S300 preferably blasts and removes the water in the water inlet 120 from the outside to the inside.

In the water removing step S300, a water leveling part 300 may be formed between the through hole 210 and the perforation device 400 formed in the water channel structure 200 during the lateral piercing.

The water removal step S300 may include a water removal structure removal step S310 for removing the water column structure 200 after the water portion 120 is removed.

In the water removal step S300, it is preferable to carry out an underwater removal method (B) in which the water (120) is punctured downward from the water surface (30) by using the ship (500).

In the water removing step S300, it is preferable to remove the water portion 120 from the outside to the inside of the water receiving portion 120 in order.

The water removal step S300 may include a water removal structure removal step S310 for removing the water column structure 200 after the water portion 120 is removed.

The present invention is a technique for removing a part of an island by landing by installing an order structure, and it is possible to secure a stable working environment than an underwater operation.

Since the construction period of the islands removal method according to the present invention is short, the entire process time can be shortened.

The islands removal method according to the present invention is an environmentally friendly technology that can quickly complete a construction and minimize a construction exposure time in a natural environment.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view and plan view of an island structure in accordance with an embodiment of the present invention; FIG.
FIG. 2 is a sectional view of an island where the upper part of the water surface is removed according to an embodiment of the present invention; FIG.
FIG. 3 is an island cross-sectional view in which a part of a lower part of a water surface is removed according to an embodiment of the present invention; FIG.
4 is a cross-sectional view of an island with the lower surface of the water removed in accordance with an embodiment of the present invention.
5 is a first-stage cross-sectional view for removing the lateral piercing and blast furnace water column according to the first embodiment of the present invention;
6 is a two-step cross-sectional view illustrating a side perforation and a blast furnace water-removal portion according to a first embodiment of the present invention;
7 is a three-step cross-sectional view illustrating a side perforation and removal of a blast furnace water column according to a first embodiment of the present invention;
FIG. 8 is a cross-sectional view of the water removed in accordance with the first embodiment of the present invention. FIG.
FIG. 9 is a cross-sectional view of an island removed to a removal depth according to the first embodiment of the present invention; FIG.
FIG. 10 is a cross-sectional view of a first step of removing a water portion by an underwater removal method according to a second embodiment of the present invention; FIG.
11 is a two-step cross-sectional view showing a water removal method according to a second embodiment of the present invention in which the water is removed.
12 is a cross-sectional view of an underwater portion removed by an underwater removal method according to a second embodiment of the present invention;
13 is a cross-sectional view of an island removed to a removal depth according to a second embodiment of the present invention;

The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments identical or corresponding elements are denoted by the same reference numerals, Is omitted.

It is also to be understood that the terms first, second, etc. used hereinafter are merely reference numerals for distinguishing between identical or corresponding components, and the same or corresponding components are defined by terms such as first, second, no.

In addition, the term " coupled " is used not only in the case of direct physical contact between the respective constituent elements in the contact relation between the constituent elements, but also means that other constituent elements are interposed between the constituent elements, Use them as a concept to cover each contact.

Hereinafter, a method of removing an island according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The method for removing islands according to the present invention includes the following steps S100: installing an aqueduct structure 200 at a boundary portion 20 between a center portion 110 of the island 10 and a water portion 120; A central portion removing step (S200) of removing the central portion (110) by landing while water is prevented from being introduced by the water damper structure (200); And a water removing step (S300) for removing the water portion 120.

In this case, since an aqueduct structure is installed at the boundary between the central part of the island and the middle part of the island, the central part of the island is prevented from inflow of water, and the land work (the operation of removing rocks and soil from the land by blasting, excavation, Can be removed.

Therefore, removal of the central portion of the island can be performed quickly and stably, and the removal time can be shortened, thereby shortening the entire process time.

It is preferable that the water wall 200a is continuously installed along the boundary 20 in the step S100.

In this case, since the water column structure is continuously installed along the boundary, it is possible to prevent water penetration when the central portion of the island is removed.

It is preferable that the water wall 200a is installed discontinuously along the boundary portion 20 in the step S100.

In this case, the construction cost can be reduced because the rock structure is used as the aqueduct structure in the section of the boundary where the section is formed by the rock.

It is preferable that the aqueduct structure 200 in the step S100 is formed by a combination of the aqueduct wall 200a and the impermeable ground 200b.

In this case, since the impervious ground is used as a water wall, the installation time of the water wall can be reduced and the construction cost can be reduced.

It is preferable that the aeration structure 200 is installed higher than the maximum wave height of the water surface 30 in the step S100.

In this case, since the order structure is installed higher than the maximum wave height due to typhoons and wind and rain, water is not flooded to the center of the island after the order structure is installed.

It is preferable that the aeration structure 200 is installed deeper than the removal depth h in the step S100.

In this case, since the order structure is installed at a deeper depth than the removal depth, it is possible to prevent the water from penetrating into the center of the island even during vibration and impact caused by the blasting operation and the island removal operation.

The central portion removal step S200 includes a water surface top removal step S210 for removing the water surface upper portion 111 formed from the upper part of the central part 110 to the upper part of the water channel structure 200 and a removal depth from the lower surface of the water surface upper part 111 (S220) for removing the lower surface (112) of the water formed up to the lower surface (h).

In this case, both removal of the upper part of the water surface and the lower part of the water surface are carried out by land and underground work (land work), so that it is possible to perform a rapid and stable island removal work.

After the water surface top-removing step S210, the water surface lowering step S220 is preferably divided into the layer structure sequentially downward of the water surface lower part 112. [

In this case, since the lower part of the water surface is sequentially removed with the layer structure of a certain depth, the island structure can be stably removed without causing eccentricity to the target depth.

A bracing 600 may be installed to support the structure in accordance with the removal height of the lower part of the water surface. If water penetrates to the lower part of the water surface during the removal of the water surface, the water can be removed using a pump or drainage equipment.

Hereinafter, two embodiments are described with respect to the water removal step S300.

In the water removal step S300 of the first embodiment, the water is penetrated through the aqueduct structure 200 in the underground work space of the water surface lower area formed by the water surface lower removal step S220, The land removal method (A) can be applied.

In this case, removal of the water in the underground workspace is performed to remove the water from the underground workspace, so that the underwater work can be minimized and the work time can be shortened.

In addition, since removal of the water part is removed by land work, stable construction conditions can be secured.

It is preferable that the water removal step S300 is to blast the water column 120 from the outside to the inside of the water column 120 in order.

In this case, since the blasting is sequentially removed from the outside of the water course to the inside, damages to the water system are minimized and water infiltration can be prevented.

In the water removing step S300, it is preferable to form the water leveling part 300 between the through hole 210 formed in the water leveling structure 200 and the perforating device 400 during the lateral piercing.

In this case, since the water level is formed in the perforation penetrating through the water-side structure, water can be prevented from penetrating by the perforation.

The water removal step S300 preferably includes a water removal structure removal step S310 for removing the water column structure 200 after the water part 120 is removed.

In this case, since the order structure is finally removed after the water removal, all the removal steps of the water can be performed in the underground work space.

The water removal step S300 of the second embodiment may perform the underwater removal method B in which the water is blown down by perforating the water part 120 at the water surface 30 by using the ship 500. [

In this embodiment, when the removal area of the water center is wide and the removal depth is low, it is advantageous in that the processing time can be shortened because the water is removed by downward piercing using the ship.

It is preferable that the water removal portion S300 is removed in the order from the outside of the water portion 120 to the inside thereof.

In this case, as the blast is removed from the outer side to the inner side, the lipid of the inner side gradually weakens due to blasting, thereby facilitating the subsequent blasting process.

The water removal step S300 preferably includes a water removal structure removal step S310 for removing the water column structure 200 after the water part 120 is removed.

In this case, it is effective to remove the last order structure because the fixing force of the aqueduct structure is gradually weakened by blasting off the water part adjacent to the order structure.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is to be understood that both the technical idea and the technical spirit of the invention are included in the scope of the present invention.

h: Removal depth 10: Island
20: boundary 30: sleep
110: central portion 111:
112: Lower part of the water surface 120:
200: order structure 200a:
200b: impermeable ground 210: through hole
300: order part 400: punch device
500: ship 600: brace

Claims (16)

An order structure installing step (S100) for installing the aeration structure (200) at the boundary (20) between the central part (110) of the island (10) and the water part (120);
Removing the water surface top 111 formed from the upper part of the central part 110 to the upper part of the water column structure 200 by landing while the water flow is prevented by the water column structure 200 (S210) removing the water surface lower part (112) formed from the lower surface of the water surface (111) to the removal depth (h); And
A method for land removal (A) for blasting and removing the water bottom part (120) by passing through the aqueduct structure (200) in an underground work space of a water surface lower area formed by the water surface lower removal step (S220) (S300) for removing the middle portion (120).
The method according to claim 1,
The above-mentioned order structure installing step (SlOO)
And a water wall (200a) is continuously installed along the boundary portion (20).
The method according to claim 1,
The above-mentioned order structure installing step (SlOO)
Wherein a water wall (200a) is discontinuously installed along the boundary (20).
The method of claim 3,
The order structure 200 of the step structure installation step S100
Is formed by a combination of the water wall (200a) and the impermeable ground (200b).
The method according to claim 1,
In the step-order structure installing step (S100), the order structure (200)
Is higher than the highest wave height of the water surface (30).
The method according to claim 1,
Wherein the aqueduct structure (200) is installed deeper than the removal depth (h) in the step structure installation step (SlOO).
The method according to claim 1,
The order structure (200)
Wherein the grout is formed by injecting grout (hard solid) into the ground.
delete The method according to claim 1,
After the water surface top-removing step (S210)
Wherein the step of removing the lower surface of the water (S220) is divided into a layer structure sequentially downward to the lower surface of the water surface (112).
delete The method according to claim 1,
In the water removing step S300,
(120) is blasted and removed in order from the outside to the inside of the water level portion (120).
12. The method of claim 11,
In the water removing step S300,
(300) is formed between the through hole (210) formed in the aqueduct structure (200) and the perforating device (400) when the side perforation is performed.
The method according to claim 1,
In the water removing step S300,
And removing the aqueduct structure (200) after removing the water portion (120). delete delete delete
KR1020150162391A 2015-11-19 2015-11-19 Removal method of island KR101666655B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101875448B1 (en) * 2016-03-30 2018-07-06 한동훈 Method for excavating base rock of on the sea
KR102520570B1 (en) * 2022-06-08 2023-04-10 우주식 vibration reduction type blasting a method of underwater base rock

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100948060B1 (en) * 2009-03-17 2010-03-19 정광옥 Constructing method for arranging river bank using steel casing retaining wall
KR100988053B1 (en) * 2010-01-29 2010-10-18 주식회사성수프론티어 Facility for tearing down underwater structure to prevent water pollution
KR100988052B1 (en) * 2010-05-13 2010-10-18 (주)청석엔지니어링 City blast excavating method using ignition of ammo hole and detonator
KR101354383B1 (en) * 2013-12-02 2014-01-22 우주식 Working platform for underwater explosion work using small barges

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100948060B1 (en) * 2009-03-17 2010-03-19 정광옥 Constructing method for arranging river bank using steel casing retaining wall
KR100988053B1 (en) * 2010-01-29 2010-10-18 주식회사성수프론티어 Facility for tearing down underwater structure to prevent water pollution
KR100988052B1 (en) * 2010-05-13 2010-10-18 (주)청석엔지니어링 City blast excavating method using ignition of ammo hole and detonator
KR101354383B1 (en) * 2013-12-02 2014-01-22 우주식 Working platform for underwater explosion work using small barges

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101875448B1 (en) * 2016-03-30 2018-07-06 한동훈 Method for excavating base rock of on the sea
KR102520570B1 (en) * 2022-06-08 2023-04-10 우주식 vibration reduction type blasting a method of underwater base rock

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