公开(公告)号：EP3382143A1

公开(公告)日：2018-10-03

申请号：EP16868871.1

申请日：2016-11-23

申请人： Hyun Engineering And Construction Co., Ltd. ,  Seo, Dong-Hyun ,  Seo, Min-kyu

发明人： SEO, Dong-hyun ,  SEO, Min-kyu

IPC分类号： E21D9/00 ,  E21D11/00 ,  E21D11/10 ,  E21D20/02 ,  E21D13/00

CPC分类号： E21D9/01 ,  E21D9/00 ,  E21D11/00 ,  E21D11/10 ,  E21D11/12 ,  E21D13/00 ,  E21D20/02

摘要： The present invention relates to a tunneling method and, particularly to installing an internal or external pre-support member, a post support member and an apparatus therefor. The tunneling method includes: excavating a pilot tunnel in a main tunnel to be built; radially forming a drilled hole from an excavation surface of the pilot tunnel to a tip end of an internal pre-support member of the main tunnel at locations in the pilot tunnel; inserting the internal pre-support member into the drilled hole, and conducting grouting and fixing the internal pre-support member; excavating the tunnel along an excavation line of the main tunnel and spraying shotcrete to an excavation surface of the main tunnel; installing a post-support member between internal pre-support members in the excavation surface of the main tunnel; and connecting the internal pre-support member and the post-support member with a plate type support member.