• 화약ㆍ발파
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• 제22권4호
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• pp.23-29
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• 2004

비전기 뇌관은 전기뇌관의 단점을 보완하기 위하여 개발한 뇌관이다. 외부전기로 인한 기폭위험으로부터 전기뇌관보다 더욱 안전한 뇌관으로 각광을 받고 있으며. 또한 정밀한 시차, 발파진동, 소음의 감소효과와 노천 및 터널 발파에서 다량발파에 이용되고 있는 비전기 뇌관의 기폭시스템 및 기본적인 사용방법과 설계 및 시공사례를 소개함으로써 국내발파 기술향상에 도움이 되고자 한다.

• 산업경영시스템학회지
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• 제30권2호
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• pp.8-14
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• 2007

The powder blasting process has become an important machining technique for the cost effective fabrication of micro devices. This process is similar to sand blasting, and effectively removes hard and brittle materials. A large number of investigations on the abrasive jet machining with such output parameters as material removal rate, penetration and surface roughness have been carried out and reported by various authors. To achieve higher surface roughness, to increase material removal rate and to identify the influence of blasting parameters on the output parameters, we use the taguchi method which is one of the design methods of experiments. We can select process parameters to optimize the blasting process of glass. Experimental results indicate that the taguchi method is useful as a robust design methodology for the powder blasting process.

• 터널과지하공간
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• 제18권2호
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• pp.118-124
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• 2008

흙막이 구조물에 대한 발파진동 허용기준을 설정하고 10 m 이내 근거리 발파를 실측하여 흙막이 구조물에 전달되는 진동규모를 확인하였다. 또 시험발파 계측데이터로부터 발파작업이 흙막이 구조물과 배면지반에 미치는 영향을 평가하였다. 연구결과 $0.5{\sim}2.0kg$ 범위의 발파작업은 흙막이 구조물과 배면지반에 거의 영향을 미치지 않는 것으로 분석되었으나 발파압력에 의한 암반블록의 이동 영향을 고려하여 최소저항선의 2배 정도를 이격하여 발파할 것을 추천한다.

• 화약ㆍ발파
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• 제12권1호
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• pp.5-31
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• 1994

On the Seoul Sub-way Tunnel works (8-6 site ). Cautious blasting works were so effectivelly tarried out the vibration record were under 0.3cm /sec and blasting noise was under 75dB which was measured at the ground of house. As a result cautious blasting works under above allowable value was not influenced the structure of house and living. On the architectural survey, There were some hair crack on the wall and floors but this was not a crack from balsting work.

• 소음진동
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• 제8권5호
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• pp.814-820
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• 1998

Vibration data from two blasting sites were analyzed to determine the sufficient sample number for blasting vibration estimation. Most important result is that much more than 30 sample data and succeeding measurement are necessary to estimate confident blasting vibration level and to determine limit scaled distance.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2001년도 봄 학술발표회 논문집
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• pp.129-136
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• 2001

Blasting method is used most engineering works for rock excavation. Blasting method is done much to upgrade of operation efficiency, contraction of construction period than other method. But blasting method happens damage by blasting vibration, nose and scattering. Therefore this study examined about effect, characteristic and application of Plasma method. To confirm effect measured vibration, noise and frequency, and analyzed data compare with general blasting.

• 한국지진공학회:학술대회논문집
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• 한국지진공학회 1999년도 춘계 학술발표회 논문집 Proceedings of EESK Conference-Spring
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• pp.85-92
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• 1999

Blasting induced damage boundary was determined by measuring vibrations adjacent to charging holes. the criterion adopted to define damages is that blasting-induced strains exceeding tension-crack strain level cause damages. The blasting vibrations were measured in terms of acceleration and converted to strains. The tension-crack strain level was determined with tensile strengths and elastic moduli of rock cores. The damage zone was found to be extended radially about 1 meter from the blasthole detonated with 250 to 700 grams of explosives. The comparison of shear wave velocity profiles before and after blasting shows that the damage boundary of 1 meter seems to be reliable.

• 화약ㆍ발파
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• 제16권1호
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• pp.13-19
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• 1998

• 화약ㆍ발파
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• 제16권2호
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• pp.47-54
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• 1998

• 화약ㆍ발파
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• 제13권3호
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• pp.31-41
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• 1995