东南大学学报（英文版）2017，Vol.33Issue(2)：196-202,7.DOI:10.3969/j.issn.1003-7985.2017.02.012
CFRP网格加固受损盾构隧道模型试验研究
Experimental study on a pre-damaged scaled tunnel model strengthened with CFRP grids
摘要
Abstract
The effectiveness of carbon fiber reinforced polymer(CFRP)grids as the strengthening materials for a pre-damaged scaled tunnel model is experimentally investigated.First,the bond performances between the CFRP grid and the concrete under different types of adhesive and surface treatment were tested.The most efficient anchoring system was adopted for the subsequent scaled tunnel strengthening.Test results show that when the epoxy structural adhesive was used as the bonding material,the failure mode was CFRP grids rupturing,and the anchorage performance was optimal.When the polymer mortar was used as the adhesive,the surface treatments with anchored bolts and grooves can improve the bond performance,and the failure mode was sliding failure with the polymer mortar peeled off.After strengthening with CFRP grids,both the stiffness and the load capacity of the pre-damaged scaled tunnel model were improved.Additionally,关键词
CFRP网格/双面剪切试验/表面处理方式/缩尺隧道模型/相对挠度Key words
carbon fiber reinforced polymer(CFRP)grid/double-shear bond test/surface treatment/scaled tunnel model/relative displacement分类
建筑与水利引用本文复制引用
李文胜,吴刚,董志强,王淑莹..CFRP网格加固受损盾构隧道模型试验研究[J].东南大学学报（英文版）,2017,33(2):196-202,7.基金项目
The Science and Technology Project of China Southern Power Grid Co.,Ltd.(No.GDKJ00000030),the National Key Technology R&D Program of China(No.2016YFC0701400),the National Natural Science Foundation of China(No.51525801). （No.GDKJ00000030）
