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1. 发明授权

KR100780916B1 다자유면을 이용한 저공해 암반 굴착공법 失效
标题翻译：使用多种免费的脸部建立基础岩石环境污染的方法
公开(公告)号：KR100780916B1
公开(公告)日：2007-11-30
申请号：KR1020070003027
申请日：2007-01-10
申请人： 계림하이텍(주)
发明人： 기경철 , 이천식 , 이기근
IPC分类号： E21D9/00
摘要： A method for digging a low-pollution rock using multi-free surfaces is provided to absorb and cut off the shock resulting from blasting of a charge into the many artificial free surfaces for preventing the vibration from being transferred to the neighboring area of the scene. A plurality of extension holes(120) are formed on surfaces(10) where a tunnel is to be excavated. Outer continuous multi-free surfaces(100) shaped like a trench are formed on the bottom, the sides, and the perimeter of the tunnel. Inner continuous multi-free surfaces(110) shaped like a trench are formed with predetermined height from the lower end of the center of the surfaces where the tunnel is to be excavated. The surfaces are center-cut through blasting or crushing of the surfaces and then excavated to extend the tunnel and to absorb and cut off the vibration and noise resulting from the blasting or crushing by the continuous multi-free surfaces.
摘要翻译：提供了使用多自由表面挖掘低污染岩石的方法，以吸收和切断由许多人造自由表面喷射电荷引起的冲击，以防止振动传递到场景的相邻区域。在要挖掘隧道的表面（10）上形成有多个延伸孔（120）。在隧道的底部，侧面和周边上形成类似沟槽的外连续多自由表面（100）。形成为沟槽的内连续的多自由表面（110）形成有距隧道将被挖掘的表面的中心的下端预定的高度。表面通过爆破或破碎表面进行中心切割，然后挖掘以延伸隧道，并吸收和切断由连续多自由表面爆破或破碎引起的振动和噪音。

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