| 倪顺程,张号,谭雪娇,杨健.利川市谋道—建南线性廊道区地质灾害易发性评价范围及因子优化研究[J].矿产勘查,2025,16(11):2527-2537 |
| 利川市谋道—建南线性廊道区地质灾害易发性评价范围及因子优化研究 |
| Study on evaluation range and factor optimization of geological disaster susceptibility in Moudao-Jiannan linear corridor area of Lichuan City |
| 投稿时间：2023-10-25 |
| DOI：10.20008/j.kckc.202511014 |
| 中文关键词: 易发性 贡献率 贡献率-信息量模型 粗糙集理论 模糊数学模型 |
| 英文关键词: susceptibility contribution rate contribution rate information model rough set theory fuzzy math.ematical model |
| 基金项目:本文受湖北省地质局2022年度科技项目(KJ2022-28)资助。 |
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| 中文摘要: |
| 廊道区地质环境差异大，道路管道沿线灾害数量多、危害大，严重威胁人民生命财产安全。地质灾害易发性评价能够预测孕灾环境下灾害空间分布，但评价单元范围大小的划分不合理必然使得主次因子交叉与贡献率混杂现象，导致结果不可信。鉴于此，本文以谋道—建南道路管线线性廊道区与道路管线沿线 1000 m缓冲区为研究对象，探索廊道区地质灾害易发评价适宜单元范围大小、评价因子体系及适宜评价模型。研究表明，10 m×10 m评价单元最适宜作为沿线缓冲区地质灾害易发性评价单元，5 m×5 m评价效果最不明显；沿线缓冲区相对整体线性廊道区更适用做廊道地质灾害易发性评价区，基于粗糙集理论的模糊综合评价模型评价准确度高于贡献率-信息量耦合模型，为评价模型中最优评价模型。研究结果可为廊道区地质灾害防治研究提供参考。 |
| 英文摘要: |
| There are great differences in geological environment in the corridor area, and there are many disas.ters along the road and pipeline, which seriously threaten the safety of people′s lives and property. The geologicalhazard susceptibility assessment can predict the spatial distribution of disasters under the disaster pregnant environ.ment, but the unreasonable division of the assessment unit range inevitably leads to the phenomenon of primary andsecondary factors crossing and contribution rate mixing, which leads to unreliable results. In view of this, taking thelinear corridor area of the Moudao-Jiannan road pipeline and the 1000 m buffer zone along the road pipeline as theresearch object, the suitable unit range, evaluation factor system and suitable evaluation model for geological disas.ter prone evaluation in the corridor area are explored. Research shows: 10 m×10 m assessment unit is suitable forthe geological hazard susceptibility assessment unit in the buffer zone along the line, and the 5 m×5 m evaluation ef.fect is the least obvious; compared with the overall linear corridor area, the buffer area along the line is more suit.able as the corridor geological disaster susceptibility evaluation area, the fuzzy comprehensive evaluation modelbased on rough set theory has higher evaluation accuracy than the contribution rate information coupling model,which is the best evaluation model in the evaluation model. The results can provide reference for the study of geo.logical disaster prevention in corridor area. |
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