摘要
应用灰色预测理论方法建立隧道围岩位移预测模型,给出了灰色预测理论的计算步骤和方法,并在此基础上预测得出隧道施工过程中掌子面前方一定范围内的围岩变形值。以武靖高速公路绥通隧道为试验对象,对比分析了预测值、实测值之间位移-时间曲线的关系,并对以上二个值进行交叉验证。验证结果表明,此模型能较好地体现围岩的应力应变变化规律,对位移值的预测精度能满足规范要求,在实际隧道工程围岩稳定性预测中比其它方法具有更大的适用范围。
Displacement prediction model for tunnel surrounding rock is established based on im-proved grey prediction theory ; with calculation procedure and method for improved grey prediction theorypresented so as to obtain displacement of surrounding rock in front of tunnel face within certain extent in tunnel excavation process by prediction. Suitong Tunnel is taken as test subject to carry out contrastive a-nalysis relation among two displacement - time curves namely value of predicted value and perform cross validation of the above mentioned two values. The validmodel is able to properly embody deformation pattern of surrounding rock, withdisplacement value satisfying requirement of specification and having larger scope of application in predic-tion of surrounding rock stability than that of other methods.
出处
《公路工程》
北大核心
2017年第5期72-75,84,共5页
Highway Engineering
基金
国家自然科学基金项目(51108176)
关键词
灰色预测
位移预测
掌子面
grey prediction theory
displacement prediction
tunnel face
作者简介
胡达（184-）,男,湖南浏阳人,博士研究生,工程师,从事岩土工程方面的研究与工作.
