亓星,修德皓,程关文,陈婉琳,邢睿,李龙飞,傅烨,刘彦伶

• 1:四川轻化工大学土木工程学院
• 2:地震预警四川省重点实验室
• 3:数学地质四川省重点实验室
• 4:成都理工大学地质灾害防治与地质环境保护国家重点实验室

摘要(Abstract)：

基于变形监测数据构建的变形速率切线角模型是进行滑坡实时预警的重要参考，现有滑坡变形监测设备获取的位移数据都有一定的精度误差，导致直接计算出的变形速率有较大波动，需要进行数据实时过滤以满足预警需求。在分析了常见滑坡变形数据实时过滤方法特点的基础上，基于最小二乘法进行改进，并考虑前期变形数据的趋势影响，提出了改进后的数据实时过滤方法。通过对比最小二乘法和改进后的过滤方法发现，改进的数据实时过滤方法可以更有效地平滑滑坡变形速率波动，降低误差导致的切线角预警值波动幅度，减小预警误报。研究成果可以为后续滑坡变形数据的实时过滤提供新的技术方法。

关键词(KeyWords)： 滑坡变形;变形速率;最小二乘法;改进过滤方法

Abstract:

Keywords:

基金项目(Foundation): 地震预警四川省重点实验室开放基金(2021KFKT0001);; 数学地质四川省重点实验室开放基金(scsxdz2021yb08);; 地质灾害防治与地质环境保护国家重点实验室开放基金(SKLGP2022K008)

作者(Author): 亓星,修德皓,程关文,陈婉琳,邢睿,李龙飞,傅烨,刘彦伶

DOI: 10.13928/j.cnki.wrahe.2022.07.012

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