摘要
为探索一种能够表达围岩松动圈时空效应的定量分析方法,在现有松动圈分析模型的基础上引入位移、空间相关量,建立了能够反映松动圈岩体参数劣化特性的位移-半径相关定量分析模型,明确了待定参数的物理意义及取值范围。并通过地下洞室施工现场声波测试结果,验证了模型的合理性和工程适用性。结果表明:由模型得到的结果能与实测数据相吻合,并能够充分反映出参数劣化沿深度方向的变化规律,具有良好的工程适用性。
To explore a quantitative analysis method to express the tempo-spatial effect of the excavation disturbed rock zone,a displacement-radius correlation quantitative analysis model of the rock mass deteriorated parameters was developed,with the introduction of displacement and spatial correlation into the existing quantitative analysis models.The physical interpretations and the value ranges of the undetermined parameters were clarified.The results of the model showed high accordance with the measured data and reflected the deterioration parameter variation in the direction by depth,which suggested good applicability in engineering.
作者
伍丹琪
赵辰
肖明
陈俊涛
WU Danqi;ZHAO Chen;XIAO Ming;CHEN Juntao(State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University,Wuhan 430072, China;Key Laboratory of Rock Mechanics in Hydraulic Structural Engineering of Ministry of Education, Wuhan University, Wuhan 430072, China)
出处
《中国科技论文》
CAS
北大核心
2018年第13期1552-1557,共6页
China Sciencepaper
基金
高等学校博士学科点专项科研基金资助项目(20130141110015)
关键词
地下洞室
岩体
松动圈
劣化参数
数学模型
underground cavern
rock mass
excavation disturbed zone
deterioration parameter
mathematical model
