KR100254734B1 - Blasting process for sinking cellular block into the ground under water - Google Patents

Blasting process for sinking cellular block into the ground under water Download PDF

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Publication number
KR100254734B1
KR100254734B1 KR1019980014322A KR19980014322A KR100254734B1 KR 100254734 B1 KR100254734 B1 KR 100254734B1 KR 1019980014322 A KR1019980014322 A KR 1019980014322A KR 19980014322 A KR19980014322 A KR 19980014322A KR 100254734 B1 KR100254734 B1 KR 100254734B1
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South Korea
Prior art keywords
explosive
hollow block
bag
fuse
hollow
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KR1019980014322A
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Korean (ko)
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KR19990080809A (en
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양원회
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양원회
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Publication of KR100254734B1 publication Critical patent/KR100254734B1/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/10—Deep foundations
    • E02D27/22—Caisson foundations made by starting from fixed or floating artificial islands by using protective bulkheads
    • 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
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0073—Explosives

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

PURPOSE: A blast construction method is provided to enable subsidence by applying vibration and shock following explosion of explosive with a simple blasting method when a hollow block does not into underwater ground subside by tare itself before reaching a light ground under viscous resistance by high viscosity while stacking and subsiding the hollow block onto a high viscous slime. CONSTITUTION: A hollow block subsides on a soft underwater ground and stops by viscous resistance. For continuing to subside the hollow block to a required spot, a fuse is connected to a float or on a surface. Herein, a length of the fuse is set to position an explosive bag(6) around a bottom in the middle of the hollow block stacked where subsidence is stopped in a slime or earth sand. Inside the explosive bag, such an explosive(7) as dynamite containing a proper explosive power is combined by a wire(8) as much a number as required. A proximal end of the fuse is linked with a detonator(8) for safety of explosive, inside of the bag and outside of the explosive, clay(9) is filled in and dried to be solidified.

Description

중공블럭의 수중지반 침하를 위한 발파공법Blasting method for subsidence of hollow blocks

본 발명은 방파제 등을 구축할 때 그 기초를 하기 위한 기술분야로서 종래 그 하부 기초공사를 할 때는 기초 최하단을 중심으로 1 : 3 의 구배로 뻘, 토사 등을 파내고 양질의 모래 등을 채우는 기초 치환공사를 하고 방파제 등을 구축하게 된다.The present invention is a technical field for the foundation when constructing a breakwater, etc. In the past when the foundation of the lower part of the foundation to excavate 뻘, earth and sand with a gradient of 1: 3 centering on the bottom of the foundation, and fill a good sand, etc. Substitution work is carried out and breakwaters are built.

방파제 최하단의 경지반으로 부터 1 : 3 의 구배로 뻘, 토사 등을 치환하기 위하여서는 많은 시간과 비용이 투입되어야 하고 물량장을 구축할 시에는 물량장 주변에 있는 기존 건축물 구조물 등을 철거해야 하는 등의 문제점들이 있었던 바 이를 해결하기 위한 공법으로서 일정한 크기와 중량을 가진 중공블럭을 기초지반에 침하적층하고 이 중공블럭 내부의 토사 등만을 파내고 이 중공블럭 내부에 양질의 모래 등을 채우므로서 공기 및 공비를 대폭적으로 절감하면서도 견고한 기초를 구축할 수 있도록 하는 "중공블럭 매설식 치환공법"이 개발되어 방파제, 물량장 공사 등에 적용 실시되어 능률적으로 시공하여 오고 있는 바 상기 "중공블럭 매설식 치환공법" 은 뻘, 토사 등의 수중 연약지반에 중공블럭을 수평을 유지하면서 1개씩 적층하므로서 중공블럭 자중에 의하여 연약지반에 침하되게 하는데 실제 공사에서 해저토양에 따라서는 뻘, 토사 등의 점도차이로 인해 중공블럭이 단단한 경지반까지 블록자중만으로는 침하도달되지 못하는 경우도 발생되나 이런 경우 중공블럭을 강제로 압박하여 침하시킬 수 있는 별다른 방법이 없었다.It takes a lot of time and money to replace the soil and earth and sand with a 1: 3 gradient from the bottom of the breakwater, and when constructing a storage area, it is necessary to dismantle the existing building structures around the storage area. As a method to solve this problem, a hollow block having a certain size and weight is deposited and deposited on the ground, and only the soils inside the hollow block are excavated and filled with high quality sand in the hollow block. The "hollow block buried replacement method" has been developed to enable a solid foundation while significantly reducing air and air expenditures, and has been applied to breakwater, water field construction, etc. "Process" is hollow hollow by stacking hollow blocks one by one while keeping horizontally hollow blocks on soft ground such as sand and soil. It is settled on the soft ground by its own weight. Depending on the subsea soils in actual construction, the hollow block may not reach settlement only by the block weight due to the difference in viscosity of soil and soil. There was no way to press down and sink.

도 1 은 본 발명상으로 실시되는 폭약을 중공블럭에 위치시킨 상태를 나타내는 개념도1 is a conceptual diagram showing a state in which the explosives carried out in accordance with the present invention placed in the hollow block

도 2 는 도 1 에서의 폭약주머니의 내부를 나타내는 단면도2 is a cross-sectional view showing the inside of the explosive bag in FIG.

〈도면의 주요부분에 대한 부호설명〉<Code Description of Main Parts of Drawing>

1 : 수면 2 : 부구 3 : 도화선1: sleep 2: float 3: fuse

4 : 뻘 또는 토사 5 : 중공블럭 6 : 폭약주머니4: 뻘 or earth and sand 5: hollow block 6: explosive bag

7 : 폭약 8 : 뇌관 9 : 점토7: explosives 8: primer 9: clay

10 : 경지반10: hard ground

본 발명은 상기와 같이 점도가 높은 뻘 등에 중공블럭을 적층침하시킬 시 고점도에 의하여 중공블럭이 점도저항으로 침하가 경지반(10)에 도달하기 전에 자중만으로는 더 이상 침하되지 않을 때 비교적 간단한 폭약의 발파방법으로 폭약의 폭발에 따르는 진동 및 충격 등을 중공블럭 및 중공블럭을 둘러싸고 있는 뻘 등에 가하여 침하가 될 수 있도록 안출한 것으로서 이를 상술하면 수면(1)상에 또는 부구(2)에 도화선(3)을 연결하고 도화선(3)의 길이는 뻘이나 토사(4) 등에서 침하가 중단된 적층된 중공블럭(5) 중도하측에 폭약주머니(6)가 위치될 수 있을 정도의 길이로 설정하고 폭약주머니(6) 내부에는 적당한 폭발력을 가진 다이나마이트 등의 폭약(7)을 필요한 개수를 와이어(8) 등으로 결속하되 도화선(3) 선단은 뇌관(8)에 연결되게 하고 이러한 폭약의 안전을 고려하여 주머니 내부와 폭약 외부에는 점토(9)를 충전하여 건조, 고화시키므로서 본 발명이 구성된다.The present invention is relatively simple explosive when the hollow block is no longer submerged only by its own weight before the hollow block is settled by the viscosity resistance due to the high viscosity when the hollow block is settled to a high viscosity such as By blasting method, the vibration and impact caused by the explosion of explosives are applied to the hollow block and the shell surrounding the hollow block so as to be settled. This is described in detail. ) And the length of the fuse 3 is set to a length such that the explosive bag 6 can be positioned below the middle of the stacked hollow block 5 in which settlement is stopped in the soil or soil 4, etc. (6) Binding the explosives (7), such as dynamite having a suitable explosive force with the wire (8), etc., but the tip of the fuse (3) is connected to the primer (8), and The present invention standing in consideration of the bag because before the inner and the outer explosive charge is dried to a clay 9 and solidified is formed.

상기와 같이 구성된 본 발명의 실시예를 설명하면 중공블럭을 자중에 의하여 연약지반에 침하시키다가 연약지반의 점도저항 때문에 더 이상 침하가 되지 않을 때 전술한 바와 같은 폭약주머니(6)를 침하된 중공블럭 중간하측에 위치되도록 도화선(3)의 길이를 정하여 상측선단에 부구(2)를 연설한 상태에서 도화선(3)에 점화시키면 도화선(3)은 수중에서도 연소되면서 뇌관(8)까지 타들어가서 폭약을 폭발시키게 되고 폭발시 발생되는 진동, 충격이 수중에 전달되고 이 충격, 진동은 중공블럭(5)과 중공블럭을 둘러싸고 있는 뻘 등에도 전달되어 중공블럭 벽면과 뻘 등에 이격이 생기게 되어 이때 중공블럭이 침하되게 되어 이런 발파작업을 필요에 따라 수회 반복하므로서 단단한 경지반까지 중공블럭을 침하시킬 수 있게 된다.Referring to the embodiment of the present invention configured as described above when the hollow block is submerged in the soft ground by its own weight, but the hollow pocket in which the explosive bag 6 as set forth above is not settled because of the viscosity resistance of the soft ground. When the length of the fuse 3 is set so that it is located in the middle of the block, the ignition wire 3 is ignited while the mouth 2 is protruded at the upper end, and the fuse 3 burns up to the primer 8 while being burned in water. And the vibrations and shocks generated during the explosion are transmitted to the water, and the shocks and vibrations are also transmitted to the hollow blocks 5 and the hollows surrounding the hollow blocks, so that the hollow blocks are separated from the walls and the hollows. This sinking allows the hollow block to be settled down to a solid hard ground by repeating this blasting operation as many times as necessary.

Claims (1)

수중에 방파제 등의 기초를 구축하기 위한 기초공사를 중공블럭을 사용하는 공법에서 중공블럭이 수중 연약지반에 침하되다가 점도저항에 의하여 침하가 중지될 시에 중공블럭을 계속 필요지점까지 침하시키기 위하여 수면(1)상에 또는 부구(2)에 도화선(3)을 연결하고 도화선(3)의 길이는 뻘이나 토사(4) 등에서 침하가 중단된 적층된 중공블럭(5) 중도 하측에 폭약주머니(6)가 위치될 수 있을 정도의 길이로 설정하고 폭약주머니(6) 내부에는 적당한 폭발력을 가진 다이나마이트 등의 폭약(7)을 필요한 개수를 와이어(8) 등으로 결속하되 도화선(3) 선단은 뇌관(8)에 연결되게 하고 이러한 폭약의 안전을 고려하여 주머니 내부와 폭약 외부에는 점토(9)를 충전하여 건조, 고화하여서 되는 중공블럭의 수중지반침하를 위한 발파공법In the construction method using hollow block for the foundation work to build the foundation of breakwater in water, when the hollow block is submerged in the soft ground of water and the settlement is stopped by the viscosity resistance, the surface of the hollow block continues to sink to the required point. (1) the explosive bag (6) connected to the conductive wire (3) on or to the mouth (2) and the length of the conductive wire (3) is lower than the middle of the laminated hollow block (5) in which settlement is stopped in the soil or soil (4), etc. Set the length so that it can be positioned and bind the explosives (7) such as dynamite having suitable explosive power to the inside of the explosive bag (6) with the necessary number of wires (8). 8) Blasting method for submerged subsidence of hollow block which is dried and solidified by filling clay (9) inside pocket and outside of explosive in consideration of explosive safety
KR1019980014322A 1998-04-22 1998-04-22 Blasting process for sinking cellular block into the ground under water KR100254734B1 (en)

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Application Number Priority Date Filing Date Title
KR1019980014322A KR100254734B1 (en) 1998-04-22 1998-04-22 Blasting process for sinking cellular block into the ground under water

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Application Number Priority Date Filing Date Title
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101254994B1 (en) * 2010-09-13 2013-04-17 국방과학연구소 Forming apparatus of metallic plate using underwater explosion, forming system having the same and forming method of metallic plate
KR101950358B1 (en) * 2018-07-10 2019-02-20 신동훈 Method for Constructing Foundation Using Open Caisson, and Open Caisson Used Therein
CN114673160B (en) * 2022-03-17 2023-09-15 广西新港湾工程有限公司 Carbon dioxide explosion sludge squeezing and stone filling construction equipment and construction method

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