文档介绍：喷射钢纤维混凝土配合比设计及施工方法研究*
周梅高红江曹启坤
辽宁工程技术大学,辽宁阜新 123000
摘要通过室内和现场试验研究,提出适宜于大型洞室支护的钢纤维混凝土配制技术路线,探讨喷射
钢纤维混凝土原材料的选择和配合比设计的基本方法,并总结了“湿喷法”喷射钢纤维混凝土的设备选型及
施工技术特点。研究结果表明不同型号的湿喷设备有其各自不同的适用钢纤维混凝土的配合比和外加剂
优化配合比设计后的喷射钢纤维混凝土能满足抗压强度、抗拉强度、抗折强度、弯曲韧度指数、韧度系数及与
围岩的粘结强度等工程设计技术指标的要求。
关键词喷锚支护钢纤维混凝土湿喷法韧性回弹性
RESEARCH ON DESIGN OF MIX PROPORTION AND METHOD OF
CONSTRUCTION FOR STEEL FIBER SHOTCRETE
Zhou Mei Gao Hongjiang Cao Qikun
Liaoning Technical University,Fuxin 123000,China
Abstract In this paper the technology of steel fiber shotcrete suitable to the support of large cavity is proposed by
laboratory and field experiments. The selection of materials for steel fiber shotcrete and design of its mix proportion
are discussed and the selection of wet - spray equipments and technical characteristic of construction of wet - spray
steel fiber shotcrete are summarized. The results of experiments show that different types of wet - spray equipments
using in construction need the steel fiber shopcrete with different mix proportion and corresponding admixture. The
steel fiber shotcrete under the optimized design can meet the requirements pressive strength,tensile strength,
flexural strength,bending temper index,temper coefficient,bond strength with surrounding rock and other technical
indexes.
Keywords shotcrete-anchorage support steel fiber concrete wet-spray temper reboun