| 公路压覆石膏矿采空区勘探与稳定性评价——以江苏省邳州X301县道某段为例 |
| 投稿时间：2024-05-07 修订日期：2024-10-25 点此下载全文 |
| 引用本文：汪传胜.公路压覆石膏矿采空区勘探与稳定性评价——以江苏省邳州X301县道某段为例[J].地质与勘探,2025,61(1):162-171 |
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| 基金项目:2023年度江苏省省级财政（地质找矿）专项资金项目（编号：HDJ2023004）资助 |
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| 中文摘要:石膏采空区具有隐蔽性和复杂性，造成的塌陷严重威胁人民生命和财产安全。为查明江苏省邳州X301县道某段压覆石膏采空区分布及其稳定性，通过InSAR监测对面积1.64 km2的研究区在2017 ~ 2021年间的地面沉降特征进行分析并圈定了沉降异常，投入高密度电阻率法测线6.24 km和验证钻探261.10 m实施地下采空区勘探，综合多源信息建立三维地质模型，推断解释了采空区7处；确定6项采空区稳定性影响因素，采用综合评价法进行了采空区稳定性评价。评价结果表明，研究区共有2处不稳定采空区和5处基本稳定采空区。实践证明，在InSAR监测和高密度电阻率法联合勘探隐伏采空区的基础上，采用多因素综合评价法进行采空区稳定性评价，具有可靠的效果和良好的推广意义。 |
| 中文关键词:石膏矿采空区 稳定性评价 高密度电法 沉降监测 邳州 江苏 |
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| Exploration and stability evaluation of gypsum mine goaf under highway pressure: Taking a section of X301 county road in Pizhou as an example |
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| Abstract:Gypsum goaf has concealment and complexity, and the collapse caused by it seriously threatens people′s lives and property safety. In order to investigate the distribution and stability of the overlying gypsum goaf in a certain section of X301 county road in Pizhou, InSAR monitoring was used to analyze the ground subsidence characteristics of the study area with an area of 1.64 km2 from 2017 to 2021, and the subsidence anomalies were delineated. A high-density resistivity measurement line of 6.24 km and a verification drilling of 261.10 m were used to explore the underground goaf. A three-dimensional(3D) geological model was established based on multiple sources of information, and seven goaf areas were inferred and explained. Six factors affecting the stability of goaf were identified, and a comprehensive evaluation method was used to evaluate the stability of goaf. The evaluation results indicate that there are two unstable goafs and five basically stable goafs in the study area. Practice has proven that based on InSAR monitoring and high-density resistivity method, the multi factor comprehensive evaluation method for goaf stability evaluation has reliable effects and good promotion significance. |
| keywords:gypsum mine goaf, stability evaluation, high-density resistivity method, settlement monitoring, Pizhou City, Jiangsu Province |
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