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一、概述光面爆破是为在爆破后,沿设计轮廊线上形成一个新的平整光滑岩面,而在五十年代初由瑞典最先提出的一种新的爆破技术.我国铁道、煤炭、冶金等部门从1965年起对这项技术进行了研究.1973年以后,在快速掘进工程中结合推广喷锚支护,由单项试验发展到综合配套技术,取得了既快又光的效果.其特点是: (1)爆破后岩面平整光滑,并留下半孔痕迹,不平度(即与设计开挖轮廊线的差距)在井巷工程中为5～12厘米,露天坡面中为15厘米,大大减少了超挖和欠挖,节约
I. Overview Glossy blasting is a new blasting technology first proposed by Sweden in the early 1950s after the blasting, forming a new smooth and smooth surface along the design gallery line. , Metallurgy and other departments from 1965 onwards this technology has been studied since 1973, combined with the rapid spray project bolting and bolting support, from a single test to the development of comprehensive supporting technology, achieved rapid and light effect. Its features are: (1) after blasting rock formation smooth, leaving half the hole traces, unevenness (ie, the gap between the design and excavation of the corridor line) in the tunnel project for the 5 to 12 cm, open slope 15 cm, greatly reducing the over-digging and under-digging, saving