EP2907967B1 - Appareil de fissuration de lit rocheux à l'aide d'une bombe à glace de la forme d'un baril de poudre - Google Patents

Appareil de fissuration de lit rocheux à l'aide d'une bombe à glace de la forme d'un baril de poudre Download PDF

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Publication number
EP2907967B1
EP2907967B1 EP13844595.2A EP13844595A EP2907967B1 EP 2907967 B1 EP2907967 B1 EP 2907967B1 EP 13844595 A EP13844595 A EP 13844595A EP 2907967 B1 EP2907967 B1 EP 2907967B1
Authority
EP
European Patent Office
Prior art keywords
via hole
bedrock
packer
tube
nitrogen
Prior art date
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Active
Application number
EP13844595.2A
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German (de)
English (en)
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EP2907967A4 (fr
EP2907967A1 (fr
Inventor
Dong Hyeon Kim
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Korea Railroad Research Institute KRRI
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Korea Railroad Research Institute KRRI
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Publication of EP2907967A4 publication Critical patent/EP2907967A4/fr
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole

Definitions

  • the present invention relates to a bedrock crack apparatus using a powder keg type ice explosive, and in particular to a bedrock crack apparatus using a powder keg type ice explosive wherein a via hole is formed at a bedrock using a via hole apparatus, and a sealed tube filled with water and a liquid nitrogen is inserted in the interior of the via hole, thus causing cracks in the bedrock based on the principle where volume expands when water is frozen and easily cracking the bedrock.
  • the tunnel construction method of using the TBM is an environment friendly tunnel excavation and construction method which is characterized in that an excavation work is performed creating a circular cross section when viewing the excavated tunnel, so such a method is a kind of a machine-based excavation which is safe and does not cause any vibration because any explosive is not used, thanks to which a ground transformation may be minimally reduced during a ground excavation work, thus maximally securing safety during the construction work.
  • environment destroy due to noise, vibration, etc. may be minimized, thus securing a safe and clean working environment inside the tunnel.
  • the above-mentioned tunnel excavation apparatus is able to excavate at once the whole cross sections of a tunnel by rotating a disk-shaped excavation head attached with bits, cuts, etc. or is able to freely excavate a predetermined cross section by freely moving a drum attached with bits, cuts, etc.
  • the above-mentioned tunnel excavation apparatus may be more effectively used when constructing a tunnel at a relatively solid ground like in a mountain area.
  • the Korean utility model registration number 0368000 as illustrated in Figures 1 and 2 , which may include a center shaft 10 wherein a center core drill 12 provided at a front end forms a center groove during rotations by a driving unit 13, and a piston 14 is rotatably engaged through a slide sheet for the sake of forward and backward movements at an intermediate portion of its longitudinal direction, a cylinder member 20 wherein the center shaft 10 is rotatably engaged along an axial direction thereof, and a slide space 22 is formed inside of the same for moving forward and backward the center shaft 10 as the piston 14 is slide-inserted in forward and backward directions and moves forward or backward within a predetermined range for hereby moving forward or backward the center shaft 10, an outer side core groove via hole member 30 wherein the center of a rotation plate 31 is integrally inserted into a front end drill engaging part of the center shaft 10, and a core tube 32 is engaged to a rim portion of the rotation plate 31 while protruding by the length of
  • the technology described in the Korean utility model registration number 0368000 has advantages in the way that the whole cross sections of the tunnel are excavated at once by rotating a disk-shaped excavation head attached with bits, cuts, etc., or a predetermined cross section may be freely excavated by freely moving the drum attached with bits, cuts, etc.; however when excavating a tunnel, a plurality of holes are formed at the surfaces of the bedrock using a center core drill and a plurality of core drills, and then cracking work is performed. In this case, excavation efficiency of a bedrock is low, and since an outer side core groove via hole member and various cutters may be worn out, so it is hard to efficiently prevent the shortening of service life.
  • Patent Document KR100614795 discloses an air bedrock breaking apparatus having the features of the preamble of the main claim.
  • the present invention is made to resolve the above-mentioned problems.
  • a gel may be injected inside of the bedrock, and then water and liquid nitrogen may be injected, thus preventing leakage of water, by which cracks may be reliably caused at the bedrock.
  • a bedrock crack apparatus using a powder keg type ice explosive which may include a packer which is fixedly inserted in the mouth of a via hole formed at a bedrock; an inner tube which is disposed at the packer and is filled with water; an injection device which is connected to the packer; a nitrogen injection nozzle which is installed at the injection device and passes through the packer; and a supply unit which is connected to the injection device and is configured to supply liquid nitrogen.
  • the packer includes a nitrogen discharge tube.
  • an outer tube is provided at an outer side of the inner tube.
  • the nitrogen injection nozzle is configured to inject nitrogen into between the inner tube and the outer tube.
  • first pressurization protrusions are formed on an outer circumferential surface of the inner tube.
  • a plurality of second pressurization protrusions are formed on an inner circumferential surface of the outer tube.
  • a gel or sand is injected in the via hole, and then the packer is fixedly inserted.
  • the packer is inserted into the via hole, and then a gel or sand is injected.
  • the packer is configured to seal the mouth of the via hole.
  • the packer is inserted into the interior of the via hole.
  • a via hole is formed at a bedrock using a via hole apparatus, and a sealed tube filled with water and a liquid nitrogen is inserted in the interior of the via hole, thus causing cracks in the bedrock based on the principle where volume expands when water is frozen and easily cracking the bedrock.
  • a flange is formed at an end portion of an injection device, thus reliably sealing the mouth of a via hole, and a liquid nitrogen is injected through a nitrogen injection nozzle provided at an injection device, thus more easily causing cracks with the aid of freezing and expansion of the water tube itself.
  • nitrogen is injected into a via hole formed at a bedrock using a via hole apparatus, and the mouth of the via hole is sealed with a packer, and a nozzle of the injection device is inserted in a via hole of the packer, thus injecting liquid nitrogen into the interior of the via hole, so it is possible to reliably cause cracks at a bedrock with the aid of freezing and expansion of the water tube.
  • the mouth of the via hole is sealed with a packer.
  • a tube filled with water is provided inside of the packer, thus eliminating a process for injecting water, so it is possible to fast cause cracks at a bedrock.
  • a via hole when a via hole is formed using a via hole apparatus at a bedrock, cracks may have been formed inside of the via hole, so water may leak out when injecting water.
  • a gel may be injected inside of the bedrock, and then water and liquid nitrogen may be injected, thus preventing leakage of water, by which cracks may be reliably caused at the bedrock.
  • Figure 3 is a concept view illustrating a bedrock crack apparatus using a powder keg type ice explosive according to the present invention
  • Figure 4 is a concept view illustrating a bedrock crack apparatus using a powder keg type ice explosive according to another exemplary embodiment of the present invention
  • Figure 5 is a concept view illustrating a bedrock crack apparatus using a powder keg type ice explosive according to further another exemplary embodiment of the present invention
  • Figure 6 is a concept view illustrating a bedrock crack apparatus using a powder keg type ice explosive according to still further another exemplary embodiment of the present invention
  • Figure 7 is a concept view illustrating a bedrock crack apparatus using a powder keg type ice explosive according to still further another exemplary embodiment of the present invention
  • Figure 8 is a concept view illustrating a bedrock crack apparatus using a powder keg type ice explosive according to still further another exemplary embodiment of the present invention
  • Figure 9 is a concept view illustrating a bedrock crack apparatus using a powder keg type
  • the present invention is directed to a bedrock crack apparatus using a powder keg type ice explosive.
  • the bedrock crack apparatus using a powder keg type ice explosive wherein a via hole 310 may be formed at a bedrock 300 using a variety of via hole apparatuses (not shown), for example, a laser drill, a drill, a jumbo drill, a water jet, etc., may include a packer 200 which is fixedly inserted in the mouth of the via hole 310, an injection device 100' connected to the packer 200, an inner tube 230 which is provided at the packer 200 and is filled with water, a nitrogen injection nozzle 130 which is installed at the injection device 100' and passes through the packer 200, and a supply unit (not shown) which is connected to the injection device 100' and supplies liquid nitrogen. Since the configuration of the supply unit for supplying liquid nitrogen is known in the art, descriptions thereof may be omitted.
  • the injection device 100' is configured to inject liquid nitrogen through a nitrogen injection nozzle 130 into an outer side of the inner tube 230, thus fast cooling the water in the inner tube 230 and converting the water into ice.
  • a nitrogen discharge tube 250 is provided at one side of the packer 200 so as to discharge nitrogen which has been injected through the nitrogen injection nozzle 130.
  • the nitrogen discharge tube 250 is connected to the injection device 100', so the nitrogen can be discharged outside through the injection device 100'.
  • the nitrogen injection nozzle 130 and the nitrogen discharge tube 250 are made of a vacuum dual tube.
  • the vacuum dual tube consists of an inner tube 132 and an outer tube 134, and a vacuum space is formed between the inner tube 132 and the outer tube 134.
  • the technology of the present invention may use a conventional TBM (rotation cut excavation) technology or NATM technology (via hole and explosive explosion).
  • the injection device 100' may be connected to the nitrogen discharge tube 250.
  • the injection device 100' may be installed at the packer 200, not connected to the nitrogen discharge tube 250, thus directly discharging the nitrogen to the outside through the nitrogen discharge tube 250.
  • an outer tube 240 may be further provided at an outer side of the inner tube 230.
  • the injection nozzle 130 passing through the packer 200 serves to inject nitrogen into between the inner tube 230 and the outer tube 240.
  • the nitrogen discharge tube 250 may be positioned between the outer tube 240 and the inner tube 230, thus discharging the injected nitrogen to the outside.
  • the inner tube 230 maybe made of a metallic material, and the outer tube 240 may be made of a rubber material.
  • the nitrogen injection nozzle 130 and the nitrogen discharge tube 250 are made of a vacuum dual tube.
  • first pressurization protrusions 232 are formed at regular intervals on an outer circumferential surface of the inner tube 230.
  • the nitrogen injection nozzle 130 and the nitrogen discharge tube 250 may be disposed between the first pressurization protrusions 232.
  • the first pressurization protrusions 232 pressurize the outer tube 240, thus pressurizing the inner circumferential surface of the via hole 310. Therefore, the via hole 310 may be pressurized by higher pressure with the aid of the first pressurization protrusions 232, thus easily causing cracks.
  • second pressurization protrusions 242 may be formed on an inner circumferential surface of the outer tube 240.
  • the pressure of the expansion force generating when water in the inner tube 230 is frozen into ice with the aid of the liquid nitrogen more increases, thus more easily causing cracks at the via hole 310.
  • first and second pressurization protrusions 232 and 242 are formed in the inner tube 230 and the outer tube 240, the convention heat transfer efficiency of the injected liquid nitrogen may increase, so the expansion force may be uniformly distributed, and the bedrock are broken into small pieces with the aid of expansion.
  • a gel 320 or sand 330 may be previously injected in the via hole 310, and the packer 200 may be fixedly inserted.
  • the gel 320 and the sand 330 may block fine cracks formed on the inner circumferential surface of the via hole 310, so it is possible to prevent the liquid nitrogen injected into the via hole from leaking to the outside.
  • the gel and sand may fill in the spaces between the via hole 310 and the tube 220, the inner tube 230 and the outer tube 240, so the pressure may increase more than the pressure when the volume expands when water changes into ice, thus more easily causing cracks.
  • the diameter of the packer 200 may be same as the inner diameter of the mouth of the via hole 310 or may be larger a bit, so the packer 200 may shrink-fit the mouth, thus reliably sealing the mouth, whereby it is possible to generate higher expansion pressure when water changes into ice.
  • the sand 330 may be wet sand or dry sand.
  • the packer 200 with the tube 220 or the inner and outer tubes 230 and 240 are injected in the via hole 310, and then the gel 320 or the sand is filled, and the spaces between the tube 220, the inner tube 230 and the outer tube 240 are filled.
  • the expansion pressure may be increase higher, thus easily causing cracks.
  • the outer diameters of the tube 220, the inner and outer tubes 230 and 240 and the packer 200 are made smaller than the inner diameter of the via hole 310, so wet sand or dry sand can be easily injected, and the tube 220, the inner and outer tubes 230 and 240 and the packer 200 may be fully inserted into the interior of the via hole 310.
  • the present invention is directed to a bedrock crack apparatus using a powder keg type ice explosive, and in particular to a bedrock crack apparatus using a powder keg type ice explosive wherein a via hole is formed at a bedrock using a via hole apparatus, and a sealed tube filled with water and a liquid nitrogen is inserted in the interior of the via hole, thus causing cracks in the bedrock based on the principle where volume expands when water is frozen and easily cracking the bedrock.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Claims (8)

  1. Appareil de fissuration de roche mère au moyen d'une bombe de glace de type a baril de poudre, comprenant :
    une garniture (200) insérée de manière fixe dans la bouche d'un trou traversant (310) formé au niveau d'une roche mère (300) ;
    un tube intérieur (230) situé au niveau de la garniture (200) et remplie d'eau ;
    un dispositif d'injection (100') relié à la garniture (200) ; caractérisé par une buse d'injection d'azote (130) installée au niveau du dispositif d'injection (100') et passant par la garniture (200) ; et une unité d'alimentation reliée au dispositif d'injection (100') et conçue pour alimenter de l'azote liquide,
    et caractérisé également en ce qu'un tube extérieur (240) est situé sur le côté extérieur du tube intérieur (230),
    et en ce que la buse d'injection d'azote (130) est conçue pour injecter de l'azote liquide entre le tube intérieur (230) et le tube extérieur (240) .
  2. Appareil selon la revendication 1, dans lequel la garniture (200) comprend un tube de décharge d'azote (250).
  3. Appareil selon la revendication 1, dans lequel une pluralité de premières saillies de pressurisation (232) sont formées sur une surface circonférentielle extérieure du tube intérieur (230) .
  4. Appareil selon la revendication 1, dans lequel une pluralité de secondes saillies de pressurisation (242) sont formées sur une surface circonférentielle intérieure du tube extérieur (240) .
  5. Appareil selon la revendication 1, dans lequel un gel (320) ou du sable (330) est injecté dans le trou traversant (310) et la garniture (200) est insérée de façon fixe par la suite.
  6. Appareil selon la revendication 1, dans lequel la garniture (200) est insérée dans le trou traversant (310), et un gel (320) ou du sable (330) est injecté par la suite.
  7. Appareil selon la revendication 5 ou la revendication 6, dans lequel la garniture (200) est conçue pour sceller la bouche du trou traversant (310).
  8. Appareil selon la revendication 5 ou la revendication 6, dans lequel la garniture (200) est insérée à l'intérieur du trou traversant (310).
EP13844595.2A 2012-10-10 2013-09-30 Appareil de fissuration de lit rocheux à l'aide d'une bombe à glace de la forme d'un baril de poudre Active EP2907967B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120112376A KR101415124B1 (ko) 2012-10-10 2012-10-10 화약통 형태의 얼음폭탄을 이용한 암반 크랙 장치
PCT/KR2013/008724 WO2014058169A1 (fr) 2012-10-10 2013-09-30 Appareil de fissuration de lit rocheux à l'aide d'une bombe à glace de la forme d'un baril de poudre

Publications (3)

Publication Number Publication Date
EP2907967A1 EP2907967A1 (fr) 2015-08-19
EP2907967A4 EP2907967A4 (fr) 2016-11-02
EP2907967B1 true EP2907967B1 (fr) 2017-11-15

Family

ID=50477594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13844595.2A Active EP2907967B1 (fr) 2012-10-10 2013-09-30 Appareil de fissuration de lit rocheux à l'aide d'une bombe à glace de la forme d'un baril de poudre

Country Status (3)

Country Link
EP (1) EP2907967B1 (fr)
KR (1) KR101415124B1 (fr)
WO (1) WO2014058169A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101510410B1 (ko) * 2013-10-14 2015-04-08 한국철도기술연구원 터널굴착용 얼음폭탄 카트리지
KR101665845B1 (ko) * 2015-01-15 2016-10-12 한국해양대학교 산학협력단 무소음화학팽창제를 이용한 해양암반 해체공법
CN107905787B (zh) * 2017-11-17 2020-11-24 成都凯隆机械维修有限公司 便于搬运的高效致裂器

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US1920094A (en) * 1928-05-19 1933-07-25 Dryice Equipment Corp Method and apparatus for generating and using high pressure
US2145473A (en) * 1938-03-12 1939-01-31 Karl P Billner Method of and apparatus for cleaving or splitting rock or the like
DE2364340C3 (de) * 1973-12-22 1979-05-03 Linde Ag, 6200 Wiesbaden Verfahren zum Sprengen
JPS58113470A (ja) * 1981-08-31 1983-07-06 新技術企業株式会社 コンクリ−ト、岩石などの破砕方法及び装置
JPS59161563A (ja) * 1983-03-04 1984-09-12 東洋基礎工業株式会社 コンクリ−トなどから成る構造体の造成法
JP2790931B2 (ja) * 1991-10-30 1998-08-27 株式会社熊谷組 破砕方法
JP3740668B2 (ja) * 1996-04-05 2006-02-01 九州電力株式会社 岩盤の掘削に用いられる加熱装置
KR100368000B1 (ko) 1999-03-24 2003-01-14 조성환 카메라용 링 라이트 가이드 장치
KR200215836Y1 (ko) * 2000-10-16 2001-03-15 주식회사우대기술단 암반절개장치
KR100614795B1 (ko) * 2005-05-27 2006-08-22 강병수 냉각 팽창력을 이용한 무진동 암반파쇄장치 및암반파쇄방법

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Also Published As

Publication number Publication date
EP2907967A4 (fr) 2016-11-02
WO2014058169A1 (fr) 2014-04-17
EP2907967A1 (fr) 2015-08-19
KR101415124B1 (ko) 2014-07-04
KR20140046203A (ko) 2014-04-18

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