摘要
对采用钻爆法施工的隧洞初期支护喷射混凝土的两种增强方式(结构纤维RL60、钢筋网)进行了研究。结果表明,通过等效抗弯能力测试与计算可以得出RL60纤维与配筋率之间的对应关系;RL60纤维在一定掺量下可以超过钢筋网的弯曲韧性能量吸收值,而且其极限抗弯承载力和低挠度残余抗弯承载力均高于钢筋网。
When using the drilling and blasting method, the two kinds of reinforcement （structural fibers RL60 and steel fabrics） for shotcrete are studied in tunnel initial support. The results indicate that the corresponding relationship be-tween the content of RL60 fiber and the ratio of reinforcement is set through equivalent flexural capacity tests, and the flexural toughness energy absorption value of RL60 with certain content can surpass that of the steel fabric, and its ulti-mate flexural capacity and residual flexural capacity in low deflection range are higher than those of the steel fabric.
出处
《混凝土与水泥制品》
北大核心
2014年第2期47-50,共4页
China Concrete and Cement Products
