聚丙烯纤维混凝土力学性能试验研究

混凝土中掺入聚丙烯纤维可以提高混凝土的延性,有利于混凝土支护结构和围岩共同作用。将湿喷工艺和纤维混凝土应用于隧道支护结构可以提高支护结构的施工质量和围岩的自承载能力,将湿喷纤维混凝土结构应用于金华山软弱围岩铁路隧道初期支护。详细介绍了金华山隧道纤维混凝土支护结构的设计,材料的选用,该隧道支护结构用纤维网混凝土配合比设计过程。

EXPERIMENT STUDY ON THE MECHANICAL OF POLYPROPYLENE FIBER REINFORCED CONCRETE

Polypropylene fiber reinforced concrete can improve the common concrete flexibility and it is beneficial for interaction between concrete lining structure and rock mass.The use of fiber reinforced concrete with wet sprayed concrete technique can improve the concrete lining structure construction quality and improve the rock mass self-bearing capacity.The wet-sprayed fiber reinforced concrete is first presentes in Jinhuashan railway tunnel early stage lining structure within soft and weak rock mass.The desig...