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首页> 外文会议>Annual Conference on Explosives and Blasting Technique vol.1 >Civil Tunnelling with Electronic Blasting Systems - Early Experience in Korea
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Civil Tunnelling with Electronic Blasting Systems - Early Experience in Korea

机译：与电子爆破系统的民事隧穿 - 韩国的早期经验

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To meet the needs of South Korea's rapidly expanding economy, a large number of infrastructure projects are under way to improve transportation efficiency within the nation. These projects include high-speed rail links between major population centres and improvements to the road network. Being densely populated and geographically mountainous, infrastructure development in Korea requires a significant amount of tunnelling. Owing to the predominantly hard granitic nature of rock, drill and blast is the preferred method of tunnel advance. The Korean tunneller, however, faces the same pressures as those of his international counterpart in that both cost and production targets need to be achieved while meeting expectations of both community and regulator. The growing acceptance of electronic blasting systems now presents a number of opportunities to the civil tunnelling sector. Conventional initiation systems used for full face firing of large tunnels are hampered by limitation of delay periods and their firing accuracy. The availability of fully programmable and accurate delay systems now open a number of possibilities to the civil tunneller, opposite advance rate, excavation efficiency, perimeter control and environmental conformance. This paper details a series of blasts undertaken at the Kang Chon 1 Tunnel on the 7th Zone of the Kyung - Chun Railway Line Construction. A blast measurement program was undertaken to firstly benchmark two conventional blasts followed by three blasts fired with the i-kon™ Electronic Blasting System (EBS). Key parameters were measured including rock mass evaluation, tunnel advance, blast fragmentation, perimeter control and vibration. The paper concludes with indications of improvements to perimeter control and a higher confidence level in vibration predication. It then points to further possibilities for electronic blasting systems in civil tunnel applications.
机译：为满足韩国迅速扩大经济的需求，正在进行大量基础设施项目，以提高国家内的运输效率。这些项目包括主要人口中心之间的高速铁路连接和对道路网络的改进。韩国的基础设施开发浓密地居住，地理位置山区，需要大量的隧道。由于岩石的主要花岗岩，钻头和爆炸是隧道前进的首选方法。然而，韩国隧道面临与他的国际对应物相同的压力，因为在满足社区和监管机构的期望时需要实现成本和生产目标。越来越多的电子爆破系统的接受现在为民事隧道部门提供了许多机会。用于全面射击大隧道的常规发起系统通过限制延迟时段及其射击精度而受到阻碍。完全可编程和准确的延迟系统的可用性现在为民用隧道提供了许多可能性，相反的前进率，挖掘效率，周边控制和环境一致性。本文详细介绍了一系列爆炸在Kang Chun铁路线建设的第7区的康中隧道中进行了一系列爆炸。爆炸测量计划是首次基准测试两种常规爆炸，然后用I-Kon™电子爆破系统（EBS）发射三次爆炸。测量键参数，包括岩体质量评价，隧道前进，爆破片段，周边控制和振动。本文的结论是，对周边控制的改进和振动预测的置信度较高的迹象。然后，它指向民用隧道应用中的电子爆破系统的进一步可能性。

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