喷射钢纤维混凝土衬砌结构模型试验  

Model Test on Lining Structure of Spray Steel Fiber Reinforced Concrete

作　　者：徐进[1] 姚直书[1] 李振宇 张迎威 

机构地区：[1]安徽理工大学土木建筑学院,安徽淮南232001 [2]郑州华路兴公路科技有限公司,河南郑州450016

出　　处：《煤矿安全》2017年第6期56-59,共4页Safety in Coal Mines

摘　　要：针对软岩巷道混凝土衬砌支护难题,基于对比试验和模型试验原理对喷射钢纤维混凝土的配合比进行优化设计,并对某巷道模型结构的衬砌方案进行试验研究,得到钢纤维的最优掺量和模型结构的应力分布状况,分析其受力机理。结果表明,喷射钢纤维混凝土衬砌结构具有较好的让压变形能力,适合深埋隧道和巷道的软岩支护。Aiming at the problem of concrete lining supporting in soft rock tunnel, an experimental study on lining scheme of roadway model structure is carried out and the mix proportion of spray steel fiber concrete is optimized based on the principle of contrast test and model test. Optimal dosage of steel fibre and stress distribution in the model structure are obtained, aud its stress mechanism is analyzed. The experimental results indicate that the lining structure of spray steel fiber reinibrced eoncretc has better yield pressure deformation capacity, and it is suitable for soft rock supporting of deep buried tunnel and roadway.

关 键 词：软岩巷道 钢纤维混凝土 衬砌结构 模型试验 软岩支护 

分 类 号：TD353[矿业工程—矿井建设]