| 李 凯.会宁县滑坡发育特征及孕灾条件分析[J].甘肃地质,2023,(1):52-58 |
| 会宁县滑坡发育特征及孕灾条件分析 |
| Analysis on Development Characteristics and Disaster-Inducing Conditions of Landslide in Huining County |
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| DOI： |
| 中文关键词: 风险调查 滑坡 发育特征 诱发因素 孕灾条件 甘肃会宁 |
| 英文关键词:geohazard risk investigation landslide disaster-inducing conditions Gansu Province |
| 基金项目:中央财政自然灾害防治体系建设补助资金项目（2020620268） |
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| 中文摘要: |
| 会宁县属于陇中黄土高原沟壑区，新构造运动强烈，处在西海固地震带的影响区之内。县域绝大部分地区为黄土覆盖，土层厚度大。本文依据会宁县地质灾害风险调查工作相关数据资料，对本区滑坡灾害的分布、滑坡发生类型及其基本特征进行了总结归纳，并从地形地貌等5个方面对影响滑坡发育关系密切的孕灾条件进行了相应分析论述。研究发现，滑坡主要受地形地貌、断层构造的控制、地层岩性等内因和物质基础的影响，在降雨的主要诱发下，大多数为黄土类推移式小型新滑坡。现状下，人类工程活动产生的工程斜坡应当引起足够的重视，此类斜坡已成为不可忽视的致灾体。 |
| 英文摘要: |
| Huining County is located in the middle of Gansu Province. Geographically it is loess gully region where has been influenced under Neotectonic Movement. In terms of Geological Hazard Risk Survey in Huining County，it is studied such data of landslide sites as distribution, type and develop features, and analyzed landslide disaster-inducing condition from five aspects such as topography, geomorphology, structure, rainfall and artificial engineering. The occurrence of landslide are mainly controlled by landform terrain, fault and lithology under the inducing condition of rainfall. Meanwhile, the slope which are formed by artificial engineering should be taken into account. |
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