| 秦帮策,任建帅,邢再亮,马恒飞,向长峰,席晓娟,周江.冀西北蔚县山间盆地地质灾害发育规律及易发性评价[J].矿产勘查,2025,16(12):2671-2682 |
| 冀西北蔚县山间盆地地质灾害发育规律及易发性评价 |
| Development characteristics and susceptibility evaluation of geological hazards in the intermountain basin of Yu County, Northwest Hebei Province |
| 投稿时间：2023-12-27 |
| DOI：10.20008/j.kckc.202512014 |
| 中文关键词: 蔚县山间盆地 地质灾害 孕灾背景 易发性评价 减灾防灾 |
| 英文关键词: intermountain basin in Yu County geological hazards pregnancy background susceptibility as-sessment disaster reduction and prevention |
| 基金项目:本文受河北省省级财政一般公共预算资金项目(343-0402-YBN-GY1N)资助。 |
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| 中文摘要: |
| 冀西北蔚县山间盆地经历了中生代以来复杂盆山耦合发育过程，山区岩体破碎、盆地土体疏松，具备构造岩相学孕灾环境背景。研究蔚县山间盆地地质灾害发育特征和易发性分区，对当地建设“首都两区”和全域旅游示范区意义重大。已有地质灾害研究空间尺度较宏观，难以满足减灾防灾实际需求。本文以蔚县山间盆地为研究对象，分析了地质灾害在蔚县山间盆地的分布、发育特征和影响因素，利用信息量模型，基于 GIS平台，评价了蔚县山间盆地的地质灾害易发性。结果表明:蔚县山间盆地地质灾害共有 5类，规模以小型为主，崩塌、滑坡和泥石流主要分布在南部中低山区，地面塌陷和地裂缝主要分布在北部中低山区和中部沉积平原区。蔚县山间盆地地质灾害主要受工程岩组、地形地貌、地质构造等构造岩相学孕灾条件控制，叠加建房、修路和采矿等人类工程活动，以及降水、地震等扰动诱发。蔚县山间盆地整体以地质灾害中易发区为主，面积为 1572.93 km2，占比为 48.5%，其次为非易发区，面积为 1153.40 km2占比为 |
| 英文摘要: |
| The intermountain basin in Yu County, northwest Hebei Province has undergone a complex processof basin-mountain coupling development since the Mesozoic era. The rock mass in the mountainous area is frag-mented, and the soil in the basin is loose, with a typical tectonic petrographic disaster environment background.Studying the development characteristics and susceptibility zoning of geological hazards in the mountainous basin ofYu County is of great significance for the construction of the "Capital Two Districts" and the comprehensive tourismdemonstration zone in the local area. The spatial scale of geological disaster research is relatively macro, which isdifficult to meet the actual needs of disaster reduction and prevention. This article takes the Yu County MountainBasin as the research object, analyzes the distribution, development characteristics, and influencing factors of geo-logical disasters in the Yu County Mountain Basin. Using an information quantity model and based on the GIS plat-form, the susceptibility of geological disasters in the Yu County Mountain Basin is evaluated. The results show that:(1) There are 5 types of geological disasters in the intermountain basins of Yu County, with small scale as the main.Collapse, landslides, and debris flows are mainly distributed in the middle and low mountainous areas in the south,while ground collapse and ground fissures are mainly distributed in the middle and low mountainous areas in thenorth and the sedimentary plain areas in the central part. (2) The geological disasters in the mountainous basin ofYu County are mainly controlled by the geological conditions of engineering rock formations, topography, geologicalstructures, and other structural petrographic hazards. They are also induced by human engineering activities such asbuilding houses, road construction, and mining, as well as environmental conditions such as precipitation and earth-quakes. (3) The mountainous basin in Yu County is mainly prone to geological disasters, with an area of 1572.93km2, accounting for 48.5%, followed by non prone areas, with an area of 1153.40 km2, accounting for 36%. The dis-tribution of high prone areas is the least, with an area of 208.21 km2, accounting for 6.5%. These research resultscan provide scientific references for disaster reduction and prevention in the inter mountain basin of Yu County, andprovide reference for the study of geological hazards in adjacent inter mountain basins. |
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