喷射聚丙烯纤维混凝土在矿业工程中的应用  

Application of Spraying Polypropylene Fiber Reinforced Concrete in the Mineral Engineering

作　　者：桑普天[1] 庞建勇[1] 闾沛[1] 

机构地区：[1]安徽理工大学土木建筑学院,淮南232001

出　　处：《混凝土与水泥制品》2011年第8期38-41,共4页China Concrete and Cement Products

摘　　要：结合淮南某矿区典型锚喷巷道工程,进行了聚丙烯纤维混凝土喷层抗拉、抗压、抗剪及弯曲性能试验研究和工业试验。结果表明,聚丙烯纤维的掺入大幅度提高了喷层的极限变形量,同时使喷层具有较强的抗弯能力和让压能力。喷射聚丙烯纤维混凝土施工工艺简单,回弹率低,喷层成形较好,可增加一次喷射厚度,减少复喷量,有利于提高施工效率。Combining with a typical project for anchor spraying roadways in Huainan mining area,the test researches and industrial tests for tensile strength,compressive strength,shear strength and flexural property with shotcrete layer for polypropylene fiber reinforced concrete are accomplished.The results indicate that shotcrete layer for polypropylene fiber reinforced concrete can greatly increase the ultimate deflection of shotcrete layer,at the same time,shotcrete layer has greater flexural capacity and yielding capacity.The process of spraying polypropylene fiber reinforced concrete construction is easy,rebound rate is low,and the foundation of shotcrete layer is good,which can add the once thickness of spraying and reduce the content of combined injection,which is useful for improving the construction efficiency.

关 键 词：聚丙烯纤维 喷射混凝土 柔性喷层 矿业工程 

分 类 号：TU528.572[建筑科学—建筑技术科学]