基于切线角预警的滑坡匀速变形速率数据处理方法Tangent angle early warning-based method for data processing of landslide uniform deformation rate
王一帆,亓星,程倩,范杰,尹念川
摘要(Abstract):
滑坡变形切线角预警模型可以实现准确的过程化变形预警,但需要在实际应用中基于滑坡匀速变形阶段的变形速率进行计算。对于匀速变形速率呈阶段性变化的折线型滑坡,目前还难以动态自动识别匀速变形速率并及时调整,对滑坡变形的自动化预警较为不利。为解决折线型滑坡匀速变形速率的动态调整难题,提出了基于切线角预警的滑坡匀速变形速率数据处理方法,采用无量纲变形动态判识值γ对变形数据进行实时判定,通过判识方法实现滑坡匀速变形速率的自动调整,从而对滑坡变形切线角预警模型进行自动修正。同时,通过典型滑坡变形数据的实例应用进行了验证,为后续滑坡系统化、自动化实时监测预警提供技术支持。此方法适用于包括阶梯型滑坡在内的各类匀速变形速率呈阶段性变化的滑坡。
关键词(KeyWords): 滑坡变形;切线角预警;匀速变形速率;动态调整
基金项目(Foundation): 桥梁无损检测与工程计算四川省高校重点实验室开放基金(2021QZY01);; 四川省矿产资源研究中心开放基金(SCKCZY2021-YB009);; 大学生创新创业训练计划项目(202110622028)
作者(Author): 王一帆,亓星,程倩,范杰,尹念川
DOI: 10.13928/j.cnki.wrahe.2021.12.018
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