| 44 | 0 | 143 |
| 下载次数 | 被引频次 | 阅读次数 |
岩溶地质灾害的隐蔽性和突发性对泰安等岩溶发育区的工程建设与公共安全构成严重威胁。传统地质调查方法在隐伏岩溶探测中存在精度不足、效率低下等问题，而三维直流电法因其高分辨率、多维度探测能力，在岩溶勘查中展现出显著的优势。以泰安穆家庄河隐伏岩溶区为研究对象，采用数值模拟与野外实测相结合的方法，系统对比分析了三极、四极装置及3 m、5 m不同极距在岩溶探测中的响应特征。研究结果表明：(1)在相同极距下，四极装置对低阻异常体的横向分辨率更高，而三极装置在垂向探测深度上更具优势；(2)3 m极距相比5 m极距能更精确地刻画岩溶空间形态，但受限于数据采集量，其探测深度略低；(3)综合三极、四极装置数据可有效提高异常解译精度，减少物探多解性影响。钻探验证证实，三维直流电法对岩溶发育深度的判定较为准确，但横向范围由于受体积效应的影响，可能存在一定的偏差。本研究为泰安及类似薄覆盖层岩溶区的精细化探测提供了优化技术方案，对岩溶地质灾害防控具有重要的实践意义。
Abstract：Karst geological hazards, characterized by their nature of concealment and suddenness, pose significant threats to engineering construction and public safety in Karst-developed regions such as Tai'an. Traditional geological survey methods face limitations in accuracy and efficiency when detecting concealed Karst features, whereas the 3D direct current resistivity(DCR) method demonstrates notable advantages with its high resolution and multi-dimensional detection capability. This study focuses on the concealed Karst area of the Mujiazhuang River in Tai'an, employing a combined approach of numerical simulation and field measurements to systematically compare the response characteristics of three-pole and four-pole arrays with different electrode spacings(3 m and 5 m) in Karst detection. The results indicate that:(1)at the same electrode spacing, the four-pole array exhibits higher lateral resolution for low-resistivity anomalies, while the three-pole array provides greater advantages in vertical detection depth;(2)compared to the 5 m spacing, the 3 m spacing allows more precise delineation of Karst spatial morphology, albeit with slightly reduced detection depth due to limitations in data acquisition volume;(3)integrating data from both three-pole and four-pole arrays can effectively enhance anomaly interpretation accuracy and mitigate the ambiguity of geophysical inversion. Drilling verification confirms that the 3D DCR method accurately determines Karst development depth, though the lateral extent may exhibit some deviation due to volumetric effects. This study provides an optimized technical solution for refined Karst detection in Tai'an and other similar thin overburden Karst regions, offering significant practical value for Karst hazard prevention and control.
[1] 赵新卓，赵新初，魏凯，等.泰安市岱岳区地质灾害孕灾条件分析及风险评价[J].资源信息与工程，2023,38(3):100-103+107.Zhao X Z,Zhao X C,Wei K,et al.Analysis and risk assessment of geological hazards in Daiyue District,Tai’an City[J].Resource Information and Engineering,2023,38(3):100-103+107.
[2] 汝亮，张业智，朱裕振，等.泰安市岩溶塌陷特征及探测方法研究[J].山东国土资源，2020,36(10):65-72.Ru L,Zhang Y Z,Zhu Y Z,et al.Study on the characteristics and detection methods of Karst collapse in Tai’an City[J].Shandong Land and Resources,2020,36(10):65-72.
[3] 焦玉国.山东泰安市地质灾害易发性分区[J].中国地质灾害与防治学报，2016,27(1):130-135.Jiao Y G.Geology hazard’s susceptibility zonation in villages and towns in Tai’an,Shandong Province[J].The Chinese Journal of Geological Hazard and Control,2016,27(1):130-135.
[4] 宋炯，杨煜坤，范俊杰，等.电法勘探技术方法、原理及应用研究进展[J].内蒙古煤炭经济，2022(18):88-90.Song J,Yang Y K,Fan J J,et al.Research progress on methods,principles and applications of electrical prospecting technology[J].Inner Mongolia Coal Economy,2022(18):88-90.
[5] 王永刚，杨建华，董鹏，等.高密度电法在特高压多端直流示范工程塔基勘察中的应用[J].工程地球物理学报，2025,22(1):74-82.Wang Y G,Yang J H,Dong P,et al.Application of high-density electrical method to tower pad investigation of UHV multi-terminal DC demonstration project[J].Chinese Journal of Engineering Geophysics,2025,22(1):74-82.
[6] 师学明，黄崇钰，王瑞，等.基于深度学习SSD算法的高密度电法智能解译方法技术研究[J].工程地球物理学报，2024,21(1):1-11.Shi X M,Huang C Y,Wang R,et al.High density electrical apparent resistivity anomaly intelligent interpretation method based on SSD target detection algorithm[J].Chinese Journal of Engineering Geophysics,2024,21(1):1-11.
[7] 宁刚.综合物探方法在贵南高铁隧道基底隐伏岩溶探测中的应用[J].工程地球物理学报，2024,21(2):196-204.Ning G.Application of comprehensive geophysical prospecting method in basement hidden Karst detection of Guinan’s high-speed railway tunnel[J].Chinese Journal of Engineering Geophysics,2024,21(2):196-204.
[8] 栗宝鹃，刘栋臣，王志豪，等.基于电磁原理的浅地表地质病害探测方法及应用[J].工程地球物理学报，2022,19(6):753-761.Li B J,Liu D C,Wang Z H,et al.Electromagnetic method and application for geological defects detection in shallow surface[J].Chinese Journal of Engineering Geophysics,2022,19(6):753-761.
[9] 孟庆鲁，李兆令，王聪，等.视电阻率法在隐伏岩溶灾害调查中的应用[J].工程勘察，2024,52(8):82-86.Meng Q L,Li Z L,Wang C,et al.Application of apparent resistivity method in the investigation of geologic hazard for concealed Karst[J].Geotechnical Investigation & Surveying,2024,52(8):82-86.
[10] 耿德祥，李楠鑫，宗威.高密度电阻率法在随州市长岗镇地质灾害调查中的应用[J].中国水运，2023(2):107-109.Geng D X,Li N X,Zong W.Application of high density resistivity method in geological disaster investigation in Changgang Town,Suizhou City[J].China Water Transport,2023(2):107-109.
[11] 胡浩，薛永仁，张绪祥.三维高密度电法在浅表溶洞探测中的应用研究[J].水利水电快报，2024,45(增刊1):7-9.Hu H,Xue Y R,Zhang X X.Study on the application of three-dimensional high-density electrical method in shallow Karst cave detection[J].Express Water Resources & Hydropower Information,2024,45(S1):7-9.
[12] 曹启亮.泰安市岩溶塌陷地质灾害勘察及处理方法探讨[J].黑龙江科技信息，2016(29):83.Cao Q L.Discussion on geological disaster investigation and treatment of Karst collapse in Tai’an City[J].Heilongjiang Science and Technology Information,2016(29):83.
[13] 郭栋栋，赵俐红，高宗军.山东泰安羊娄岩溶地面塌陷的高密度电法探测应用[J].中国地质灾害与防治学报，2012,23(4):104-108.Guo D D,,Zhao L H,Gao Z J.Prospecting research of high density electrical method about kast ground collapse in Yanglou,Tai’an City Shandong Province[J].The Chinese Journal of Geological Hazard and Control,2012,23(4):104-108.
[14] 张涛，韩晔，刘中业.岩溶塌陷地质灾害经济损失评估探讨[J].西部探矿工程，2008,20(3):75-78.Zhang T,Han Y,Liu Z Y.Discussion on geological economical loss evaluation of Karst collapse[J].West-China Exploration Engineering,2008,20(3):75-78.
[15] 张建太，宗传攀，李付全，等.三维高密度电法对岩(土)层界面及岩溶塌陷的响应研究[J].中国岩溶，2024,43(5):1 121-1 132.Zhang J T,Zong C P,Li F Q,et al.Response of 3D high-density electrical method to the interface of rock(soil) layer and Karst collapse[J].Carsologica Sinica,2024,43(5):1 121-1 132.
[16] 胡让全，黄健民.土壤氡浓度测量在广州市岩溶地面塌陷、地面沉降地质灾害调查中的应用[J].地球物理学进展，2015,30(2):975-982.Hu R Q,Huang J M.The application of soil radon concentration detection on the geological disaster of Karst collapse,ground subsidence in Guangzhou City[J].Progress in Geophysics,2015,30(2):975-982.
[17] 阮珏，石凤仙，南爱强.地质雷达在公路山体地质灾害调查中的应用[J].云南地质，2012,31(3):417-419.Ruan J,Shi F X,Nan A Q.The application of geological radar to the investigation of mountain geological disaster of highway[J].Yunnan Geology,2012,31(3):417-419.
[18] 孟令华，郭猛，张宪峰，等.泰安市中心城区工程建设适宜性评价[J].城市地质，2024,19(4):439-447.Meng L H,Guo M,Zhang X F,et al.Suitability evaluation of engineering construction in the central urban area of Tai’an[J].Urban Geology,2024,19(4):439-447.
[19] 苏宝成.泰安市地质灾害现状及易发程度分区评价[J].山东国土资源，2021,37(10):70-75.Su B C.Present condition and evaluation of susceptibility zoning evaluation of geological hazards in Tai’an City[J].Shandong Land and Resources,2021,37(10):70-75.
[20] 王延岭.山东省泰莱盆地岩溶地面塌陷影响因素分析[J].中国岩溶，2016,35(1):60-66.Wang Y L.Research on influential factors of the Karst collapse in the Tailai Basin of Shandong Province[J].Carsologica Sinica,2016,35(1):60-66.
基本信息:
中图分类号:P631.3;P642.25
引用信息:
[1]孟庆鲁,刘虹辰,翟代廷,等.三维直流电法不同装置对岩溶异常响应特征的分析[J].工程地球物理学报,2025,22(06):747-757.
基金信息:
泰安生态地质环境监测项目(编号:鲁地字[2024]4号)