小波变换与GM模型在基坑监测中的应用  

Application of gray model and wavelet transform in excavation deformation monitoring

作　　者：岳仁宾[1,2] 滕德贵 欧斌[1,2] 肖兴国 

机构地区：[1]重庆市勘测院,重庆400020 [2]重庆岩土技术研究中心,重庆400020

出　　处：《工程勘察》2015年第5期69-72,共4页Geotechnical Investigation & Surveying

摘　　要：地下空间开发的快速增长,引发的深基坑工程事故也随之增加,这种情况在山地城市尤其多见。因此,对施工过程进行全方位的监测和变形预测分析,及时、准确地反馈基坑变形动态,对工程安全起着至关重要的作用。本文叙述了GM模型的原理、生成方法,并以重庆越洋广场监测项目为例,采用GM模型对监测结果进行预测,并分析基于小波变换前后的预测效果和精度水平。结果表明,经小波变换后GM模型能够达到更好的应用效果。With the rapid development of the underground space,the accidents in excavation engineering have increased dramatically. This situation is particularly common in the mountainous city. To feedback pit deformation dynamics timely and accurately plays a vital role in deformation monitoring and forecasting,so as to assure safety of the engineering project. This paper describes the principle and methods of GM model,and applies it in the example of Chongqing Yue Yang Square project to predict deformation results,and analyzes the accuracy level of the model before and after the wavelet transform. The results show that it can achieve better results after the wavelet transform.

关 键 词：小波变换 GM模型 基坑工程 变形预测 

分 类 号：TU753[建筑科学—建筑技术科学]