| 黄传胜,范荣华,李鹏,欧阳昊明.降雨诱发中小型土层滑坡预警特征分析——以江西玉山县吴家社区滑坡为例[J].贵州地质,2024,(2):185-191 |
| 降雨诱发中小型土层滑坡预警特征分析——以江西玉山县吴家社区滑坡为例 |
| Analysis of Early Warning Characteristics of Small and Medium-sized Soil Landslide Induced by Rainfall——A Case Study of Wujia Community Landslide in Yushan County in Jiangxi |
| 投稿时间：2023-10-28 |
| DOI： |
| 中文关键词: 降雨型滑坡 变形 相关性 含水率 监测预警 |
| 英文关键词:Rainfall-type landslide Deformation Correlation Monitoring and warning |
| 基金项目:东华理工大学博士科研启动基金项目(编号:DHBK2019240)资助 |
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| 中文摘要: |
| 中小型土层滑坡广泛分布于上饶市乃至江西省各地，因其突发性强，难以预防，给人民的生命和财产安全造成了严重威胁。降雨是诱发这类滑坡发生滑动的主要原因，为了更好地探究滑坡的滑动机理以及做好预警预报工作，本文以吴家社区滑坡为研究对象，利用江西省地质灾害监测系统采集的滑坡裂缝位移、降雨量、土壤含水率等数据，从滑坡外部和内部两个方面入手，研究了滑坡裂缝位移与日有效降雨量相关性以及土壤含水率变化规律。结果表明:在滑坡变化发展的后期，滑坡变形与当日降雨量呈现高度相关，其次便是前2日有效降雨量。在土壤含水率方面，土层深度与含水率之间存在一个二次函数的关系，可利用不同深度土层含水率的变化规律，作为滑坡是否处于临滑阶段的一个判断依据。 |
| 英文摘要: |
| Small and medium-sized soil layer landslide are widely distributed in Shangrao City and even throughout Jiangxi Province，because of its sudden strong，it is difficult to prevent，to the safety of people's lives and property has caused a serious threatRain is the main cause of the landslide slide，in order to better explore the landslide sliding mechanism and early warning forecast，this paper as the research object，using the Jiangxi geological disaster monitoring system of landslide fracture displacement，rainfall，soil moisture content data，from the external and internal landslide，studied the landslide crack displacement and daily effective rainfall correlation and soil moisture content change ruleThe results show that in the later period of landslide change development，the landslide deformation is highly correlated with the daily rainfall，followed by the effective rainfall in the previous 2 daysIn terms of soil moisture content，there is a quadratic function between the depth of soil layer and the moisture contentThe change law of the moisture content of soil layer at different depths can be used as a basis for judging whether the landslide is in the imminent slip stage |
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