夹岩 meaning in English

jia yan

Combined with the engineering practice of small interval tunnel in china , this paper points out its five key technology problems : its concept , reasonable clear interval , support parameter , construction method and strengthening technology for the shamed surrounding rock
摘要结合国内小净距隧道建设现状，笔者认为其设计施工关键技术主要在于小净距随道的合理净距、支护参数、施工方法、中夹岩加固技术等。