基于高阶统计量偏斜度和赤池信息准则的突涌水微振信号初至拾取方法  

An Initial Arrival-Moment Pickup Method of Microvibration Signals from Water Inrush Based on PAI-S and AIC

作　　者：胡慧江 李利平[1,3] 靳昊 陈彦好 王升 黄瑞哲 HU Huijiang;LI Liping;JIN Hao;CHEN Yanhao;WANG Sheng;HUANG Ruizhe(Nanjing Hydraulic Research Institute,Nanjing 210029,China;China Design Group Co.,Ltd.,Jiangsu Communications Planning and Design Institute Limited by Share Ltd.,Nanjing 210001,China;School of Qilu Transportation,Shandong University,Jinan,Shandong 250002,China;Faculty of Civil Engineering,Belarusian National Technical University,Minsk 220013,Belarus)

机构地区：[1]南京水利科学研究院,南京210029 [2]华设设计集团股份有限公司,南京210001 [3]山东大学齐鲁交通学院,济南250002 [4]白俄罗斯国立技术大学土木工程学院,明斯克220013

出　　处：《工业建筑》2023年第5期132-136,195,共6页Industrial Construction

基　　金：国家杰出青年科学基金项目(52025091);国家自然科学基金联合基金项目(U1934218);水文水资源与水利工程科学国家重点实验室开放研究基金(2016zd13);重庆市自然科学基金面上项目(cstc2021jcyj-msxmX0133)。

摘　　要：突涌水灾害演化过程中,伴生着大量的微振事件,得到准确微振信号的初至时刻,是实现微振事件准确定位的重要前提。通过分析高阶统计量偏斜度、赤池信息准则到时拾取方法原理和抗噪声干扰能力差、滑动时窗依赖性大等问题。针对两种方法的局限性,提出基于高阶统计量偏斜度和赤池信息准则的突涌水微振到时拾取方法。通过模型试验的突涌水微振信号进行实例验证,结果表明:提出的拾取方法对高信噪比和低信噪比信号的拾取精度较高阶统计量偏斜度方法分别提高了3.125,4.700 ms。验证了提出的突涌水微振信号到时拾取方法较单一的高阶统计量偏斜度方法和赤池信息准则到时拾取更加准确,具有更高的稳定性、准确性、抗噪能力及更低的滑动时窗大小依赖性。In the process of water inrush disaster evolution,there are a large number of microvibration events.Obtaining the accurate initial arrival-moment of microvibration signals is an important premise to realize the accurate positioning of microvibration events.The principle for the arrival-moment pickup method of higher-order statistic skewness(PAI-S)and the Akaike information criterion(AIC)were analyzed,and the problems such as the poor anti-noise capability and large dependence on sliding time windows were analyzed.Through example verification of microvibration signals from water inrush in model tests,the results indicated that the pickup accuracy for signals of high signal-to-noise ratios and low signal-to-noise ratios by the proposed method was individually increased by 3.125 ms and 4.700 ms than that of the high-order statistics skewness method.It was verified that the proposed method was more accurate than the single high-order statistics skewness method and the Akaike information criterion,and its stability,accuracy and anti-noise capability were higher and the dependence for lower sliding time window sizes was lower.

关 键 词：隧道工程 突涌水 微振 初至拾取 

分 类 号：U458[建筑科学—桥梁与隧道工程]