전자뇌관을 이용한 보안물건 초근접구간 시공 사례

황남순,이동희,임일수,김진수 대한화약발파공학회 2019 화약발파 Vol.37 No.2

On sites where explosives are used, the effects of noise and vibration produced by the blast wave are subject to a number of operational restrictions. Recently, the number of civil complaints has increased and the standard of environmental regulations on secure goods has been greatly tighten. Therefore, work is generally carried out by machine excavation in case of close proximity of safety thing. Machine excavation methods have the advantage as reducing noise and vibration compared to blasting methods, but depending on the conditions of rock intended to be excavated, they are sometimes less constructive than planned. In general, the closer a rock type is to hard rock, the less constructible it becomes. In this paper, we are going to explain the construction of a construction section with a close proximity to a safety thing using electronic detonators. While the project site was designed with a machine excavation methods due to the close(9.9m) proximity of safety thing(the railroad), construction using electronic detonators was reviewed as an alternative method for improving rate of advance time and construction efficiency when expose to hard rock. Through blasting using electronic detonators, construction and economic efficiency were maximized while minimizing impact on surrounding safety things. Because HiTRONIC™, which is produced by Hanwha, has innovative stability and high explosion reliability, it is able to explode with high-precision accuracy. Electronic detonators are widely used in construction sites of railway or highway, other urban burrowing areas and large limestone mines. 화약을 이용하여 작업하는 현장에서는 발파에 의해 발생되는 소음과 진동의 영향으로 작업상 많은 제약을 받는다. 최근에 민원 발생 증가 및 보안물건에 대한 환경규제 기준이 대폭 강화되고 있는 추세이다. 때문에 보안물건이 근접해 있는 경우 일반적으로 기계식굴착에 의해 작업이 이루어지고 있다. 기계식굴착 공법은 발파공법에 비해 소음과 진동을 저감시키는 장점을 갖고 있으나 굴착하고자 하는 암반의 상태에 따라서 계획 보다 시공성이 떨어지는 경우가 발생되기도 한다. 일반적으로 굴착암이 극경암에 가까울수록 시공성이 낮아진다. 본고에서는 전자뇌관을 사용하여 보안물건이 초근접해 있는 공사구간을 시공한 사례에 대해 설명하고자 한다. 당 현장은 인근에 보안물건(철도)이 근접(9.9m)해 있어 암파쇄 굴착공법으로 설계가 되어 시공하던 중, 극경암 노출에 따른 시공성 저하 및 공사기간 단축을 위한 대안 공법으로 전자뇌관을 이용한 시공을 검토하게 되었다. 전자뇌관 이용한 발파작업으로 주변 보안물건에 미치는 영향을 최소화 하면서 시공성과 경제성을 극대화 할 수 있었다. 한화에서 생산하는 하이트로닉(HiTRONIC™)은 혁신적인 안정성과 높은 기폭 신뢰성을 갖고 있어 초정밀발파가 가능하다. 전자뇌관은 철도 및 고속도로현장, 대형 석회석 광산을 비롯한 도심지 터파기 등에서 널리 사용되고 있다.

도심지의 대심도 수직구 발파에서 지반진동저감 시공 사례

황남순 ( Nam-sun Hwang ),김경현 ( Kyung-hyun Kim ),김정환 ( Jeoung-hwan Kim ),정민성 ( Min-sung Jung ),이형진 ( Hyeung-jin Lee ),나경민 ( Gyeong-min Na ) 대한화약발파공학회 2021 화약발파 Vol.39 No.2

Domestic electronic detonators are used widely in many quarry and construction sites since its launch at 2013. In the case of SOC projects conducted in the city, most of them are designed in high-depth to reduce complaints. The high-depth excavation needs a long construction period and huge cost for building shaft and ventilation hole. Mechanical excavation method is applied when safety things are located nearby the site. Solidity of rock and machine’s performance affect on the method’s efficiency. So as the efficiency is getting lower, the construction period is extended, and the cost is increases as well. This case study is about changing the machine excavation method to the blasting method which is electronic detonator applied at the shaft construction site in the city. This is an example of using electronic detonators on the construction site in reducing blast-noise and vibration while meeting environmental regulatory standards.

전자뇌관을 이용한 대단면 터널 시공 사례

황남순 ( Nam-sun Hwang ),이동희 ( Dong-hee Lee ),정민성 ( Min-sung Jung ),김남수 ( Nam-soo Kim ) 대한화약발파공학회 2018 화약발파 Vol.36 No.2

The measures for environmental regulations have become more strict over the recent years. Due to vibration and noise arising from blasting, every site that chooses to handle explosives has to be under certain restrictions in its use. Especially a site where a safety thing is situated within close proximity, the chosen method is through mechanical excavation. However, various applications of electronic detonators has made blasting possible where mechanical excavation used to be the only alternative. Hanwha Corporation has developed an electronic detonator, HiTRONIC™, which is an advanced fourth-generation detonator with a high accuracy of delay time(0.01%). At this moment, HiTRONIC™ is widely used in highway and railway construction sites, large limestone quarries, and many other blasting sites where blasting had not been an available option before. In this paper, I would like to introduce a case study on construction of utilizing HiTRONIC™ at a large-scale tunnel site.

전자뇌관을 활용한 발파 시공 사례

황남순 ( Nam-sun Hwang ),이동훈 ( Dong-hoon Lee ),이승재 ( Seung-jae Lee ) 대한화약발파공학회 2016 화약발파 Vol.34 No.4

Sites, where explosives are used, are constantly under constraint of vibration and noise levels. If a sensitive area is located nearby the sites, mechanical excavation has been preferred rather than blasting. Recently, however, blasting using electronic detonators is applicable in the areas, where previously should be excavated by mechanical methods. HiTRONIC™ is a fourth-generation detonator that utilizes Hanwha Corporation`s advanced electronic technology. The detonator contains IC-Chip, which allows delay times between 0~15,000ms with 1ms interval. Furthermore, the product can provide high accuracy(0.01%) for accurate-blasting. Electronic detonator is widely used in highway and railway construction sites, large limestone quarries, and other works. In this paper, several sites, in which HiTRONIC was used, are introduced in order to enhance understanding of electronic detonator.

GTX A 터널정거장에 대한 전자뇌관 적용 시공 사례

황남순 ( Nam-sun Hwang ),김경현 ( Kyung-hyun Kim ),김정환 ( Jeoung-Hwan Kim ),성유현 ( Yoo-hyeon Seong ),이창원 ( Chang-won Lee ) 대한화약발파공학회 2021 화약발파 Vol.39 No.3

Electronic detonators are widely used in various construction sites due to accurate delay time. Including the cases with exceeded noise and vibration from site using electric/non-electric detonator, electronic detonators are used to improve blast fragmentation or to reduce the cost of secondary partial blasting. Furthermore, the number of cases using electronic detonators are increased for reduction of the cost and construction period by maximizing operations efficiency. This case study is about applying electronic detonators on large section station, tunnel construction site which is the part of urban area GTX A project. Although it was initially planned to utilize non-electric detonators, damage was inflicted on safety-thing. We have considered blasting method using electronic detonators as solution of this problem. By applying electronic detonators, we not only satisfied environmental regulations but also prevented nearby safety-thing from getting damaged. In addition, we were able to shorten the construction period than the initial plan by conducting single simultaneous blasting on large section station, in order to ensure safe and efficient construction.

전자뇌관(HiTRONICⅡ™)을 이용한 수직구 시공 사례

황남순 ( Nam-sun Hwang ),진근우 ( Geun-woo Jin ),여진혁 ( Jin-hyeok Yeo ),정동호 ( Dong-ho Jeong ),김연홍 ( Yeon-hong Kim ) 대한화약발파공학회 2020 화약발파 Vol.38 No.2

Recently, electronic detonators have been widely used in various sites. Electronic detonators are often used for the purpose of reducing the noise and vibration produced by blasting. In addition, electronic detonators are used for precision blasting at sites where mechanical excavation techniques are applied due to proximity of safety things or where blasting by conventional detonators are not possible. Various technologies are being attempted at the blasting site to increase constructivity and lower production costs by using electronic detonators. In this paper, we would like to introduce a construction case that use of electronic detonators in the situation of safety things being adjacent increases the efficiency of construction while meeting the ground vibration criteria of Ministry of Land, Infrastructure, and Transport. The blasting was carried out at domestic and overseas shaft using HiTRONICⅡ™, produced by Hanwha. Generally the shaft blasting is performed by dividing the blasting surface because of the noise and vibration caused by the blasting. but, in the case introduced in this paper, the blasting was carried out once without dividing the blasting surface, thus the construction period could be shortened.

도심지 터널에 대한 전자뇌관 적용 시공 사례

황남순 ( Nam-sun Hwang ),허의행 ( Eui-haeng Heo ),김경현 ( Kyung-hyun Kim ),김정환 ( Jeoung-hwan Kim ),성유현 ( Yoo-hyeon Seong ),김남수 ( Nam-su Kim ) 대한화약발파공학회 2022 화약발파 Vol.40 No.1

Electronic detonators are now widely used in various construction sites and quarry mines. Including the sites where safety-thing is located nearby, Cases of using electronic detonators are increasing to maximize operational efficiency by improving blast fragmentation or reducing the cost of secondary blasting. This case study is about applying for electronic detonators on zone 00 construction site, which is the part of urban area metropolitan express rail A line project. Although the project was initially planned to utilize non-electric detonators, Electronic detonators are considered as the solution not only for safe and fast excavation, but also to minimize civil complaint and the damage of safety-thing. By applying electronic detonators, we were able to satisfy environmental regulations standards and prevent nearby safety-thing from getting damaged.

닭 콕시듐증에 대한 면역형성과 항콕시듐제 효과 시험

백병걸,황남순 한국예방수의학회 1990 예방수의학회지 Vol.14 No.3

닭 콕시듐症 대한 免疫形成과 항콕시듐劑 效果 試驗

白秉杰,黃南純 한국수의공중보건학회 1990 예방수의학회지 Vol.14 No.3

닭 콕시듐증에 대한 면역형성과 항콕시듐제 효과 시험

백병걸,황남순 한국수의공중보건학회 1990 예방수의학회지 Vol.14 No.4