浮动平均值在大变形隧道定额测定与分析中的应用-《高速铁路技术》

文章信息/Info

Title:: Application of Floating Average Value in Quota Determination and Analysis of Large Deformation Tunnel

Author(s):: LI Zhun; ZHANG Qiong; China Railway Eryuan Engineer Group, Co., Ltd., Chengdu 610031, China

Keywords:: tunnel with large deformation|floating average|R programming|quota determination

摘要:: 近年来,国内外对大变形段隧道在设计、施工技术方面的研究取得了一定的成果,例如兰渝、拉林等铁路项目均对高地应力大变形进行了研究,铁建设〔2007〕155号文也针对施工降效明确了定额增加幅度系数。但是在定额测定的过程中,由于隧道工程施工的复杂性和综合性,所需的施工组织模型原始现场数据数量极大,算数平均等方法求解的消耗量会因施工环境变化等难以避免的因素,存在偏差或异常。本文介绍了R语言编程计算浮动平均值的方法,并运用研究成果,对写实数据进行二次处理和优化,有效提高了数据的准确性和稳定性。

Abstract:: In recent years, the studies on design and construction technology of tunnels with large deformation in China and abroad have achieved certain results. For example, Lanzhou-Chongqing Railway, Lhasa-Nyingchi Railway and other railway projects have all involved the study on the large deformation due to high geo-stress, and the document TJS [2007] No.155 has also defined the coefficient of quota increase range for the construction efficiency reduction. However, in the process of quota determination, due to the complexity and comprehensiveness of tunnel construction, the original field data of the required construction organization model is extensive, and the consumption calculated by the arithmetic average method will be deviated or abnormal due to unavoidable factors such as the change of construction environment. This paper introduces the method of calculating the floating average with R programming, and makes secondary process and optimization for the realistic data based on the study results to effectively improve the accuracy and stability of the data.