Open AccessResearch on Water Inrush Disaster Control Technology in Double Shield TBM Excavation Process
Author(s) -
Jiao Zhang,
Shiqun Liu,
Jianwei Zhang,
Yanxu Guo,
Xin Chen
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/780/4/042002
Subject(s) - inrush current , excavation , shield , reinforcement , geotechnical engineering , stratum , drilling , engineering , slurry , mining engineering , petroleum engineering , geology , mechanical engineering , structural engineering , environmental engineering , petrology , voltage , electrical engineering , transformer
Taking the TBM water inrush accident in An-Xue section of Qingdao Metro Line 1 as the engineering background, the research is carried out from two aspects of TBM water inrush emergency measures and grouting reinforcement treatment technology, which can ensure the strength of stratum reinforcement and water shutoff, and at the same time prevent the slurry from damaging the cutter head. For different areas, the grouting construction technology is proposed. After the reinforcement, the water stopping effect is obvious, the water inrush point has no water flow out, the hole drilling effect is good, the core removal rate is 75%∼85%, and the strength meets TBM excavation requirements.