不衬砌岩石隧洞摩阻特性的探讨  

Studies on Characteristics of Friction in Unlined Rock Tunnel

作　　者：丁灼仪 

出　　处：《长江科学院院报》1996年第2期1-6,共6页Journal of Changjiang River Scientific Research Institute

摘　　要：收集了国内外４１个实际工程不衬砌隧洞的各种参数，包括糙率系数和摩阻系数的实测值等；分析研究了不衬砌岩石隧洞摩阻的各种影响因素；提供了以往５种不衬砌岩石隧洞摩阻的估算方法以及笔者根据试验数据获得的新的估算方法。经实际工程实测数据验证表明，该估算方法更符合实际，可供设计选用。This paper reviews former five formulas for estimating friction in the unlined rock tunnel.Studying affecting factors on friction in the unlined rock tunnel and using experimental data from 41 hydroprojects at home and abroad, new estimating formulas are given in the paper. Verification of data obtained from prototype observation indicates that the new formulas are better agreeable to practice than former formulas.

关 键 词：隧洞 不衬砌隧洞 岩石 摩阻 糙率 

分 类 号：TV554[水利工程—水利水电工程]