摘要
基于正交设计方法,以铁粉、重晶石粉、石英砂为骨料,石膏为胶结剂进行拌和,研究福州某双洞隧道围岩相似材料的极限抗压强度、弹性模量、黏聚力、内摩擦角。结果表明,不同配比的相似材料其物理力学参数值跨度较广,可以作为大部分岩体的相似材料进行物理模型试验。通过大量试验,确定相似材料物理力学参数的影响因素并进行敏感性分析,最终确定材料的合理配比,较好地模拟出目标岩体的物理力学参数。
Based on the orthogonal design method,with iron powder,barite powder,quartz sand as aggregate,and gypsum as cementing agent,the ultimate compressive strength,elastic modulus,cohesion and internal friction of similar materials in the surrounding rocks of a double-hole tunnel in Fuzhou were studied.Results show that similar materials with different ratios have a wide range of physical and mechanical parameter values,and can be used as physical model tests for similar materials in most rock masses.Through a large number of experiments,the influencing factors of physical and mechanical parameters of similar materials were determined and sensitivity analysis was performed.Finally,the reasonable ratio of materials was determined,and the physical and mechanical parameters of target rock mass were well simulated.
作者
林贤文
杨杰
臧万军
LIN Xianwen;YANG Jie;ZANG Wanjun(Key Laboratory of Underground Engineering in Colleges and Universities of Fujian Province, Fuzhou 350118, China;School of Civil Engineering, Fujian University of Technology, Fuzhou 350118, China)
出处
《福建工程学院学报》
CAS
2020年第3期228-234,共7页
Journal of Fujian University of Technology
关键词
隧道工程
围岩
相似理论
敏感性分析
tunnel engineering
surrounding rock
similarity theory
sensitivity analysis
