基于小波的时序改进法在深基坑监测中的应用  

A method based on time series improvement method of wavelet applied to deep foundation pit monitoring

作　　者：赵燕容[1] 袁宝远[1] 

机构地区：[1]河海大学土木工程学院地球科学与工程系,南京210098

出　　处：《岩土力学》2008年第12期3381-3386,共6页Rock and Soil Mechanics

基　　金：国家自然科学基金委员会;二滩水电开发有限责任公司雅砻江水电开发联合研究基金资助项目(No.50539110)

摘　　要：结合润扬长江公路大桥南汊悬索桥南锚碇采用排桩冻结法新技术的工程实际,对深基坑支撑轴力监测数据提出了基于小波技术的时间序列改进法,将时间序列分析的多步预报功能与小波对信号精加工的功能相结合,研究结果表明,采用小波改进时间序列分析方法建立的时间序列动态预测模型,其预测精度大大提高,为基坑的安全施工提供了保障,为基坑的信息化施工提供了依据。Based on engineering practice of south anchor of Runyang Yangtze Bridge, the south anchor applies new technology of frozen row-piles method. A new method of data processing based on time series improvement method of wavelet technology is put forward. It can combine the multi-step forecasting function of time series analaysis and the refined data processing function of wavelet. The result indicates that the forecast accuracy of time series dynamic forecasting model has been improved greatly based on wavelet improving time series analysis. It affords reliable guarantee for construction of deep foundation pit and reliable basis for information construction. It can provide much experience for deep foundation pit to which the frozen row-piles method is applied.

关 键 词：小波 时序分析 监测 支撑轴力 预测 

分 类 号：TU470[建筑科学—结构工程]