华南地质2023，Vol.39Issue(4)：643-654,12.DOI:10.3969/j.issn.2097-0013.2023.04.005
微动方法在金属矿采空区三维探测中的应用——以安徽霍邱县某铁矿采空塌陷区为例
Application of Microtremor Detection Method in the 3D Survey of Metal Mined-out Collapse area:An Example of Iron Mined-out Collapse Area in Huoqiu County,Anhui Province
摘要
Abstract
The continuous extraction of underground metal minerals would form a large mined-out area,and the collapse and subsidence of this area would pose a direct threat to the safety of people's lives and property.The deep buried depth,complicated geological environment and morphological characteristics make it a chal-lenge to detect the area effectively.Therefore the research on its detection technology is of great practical sig-nificance.In this paper,an underground mined-out collapse area in an iron deposit in Huoqiu County,Anhui Province has been studied.The microtremor detection method was used to investigate the mining situation in this area,the possible sources of interference in the area were located and analyzed by using the noise source beamforming method,and the influence of the surrounding human activities on the results of this detection is investigated.The validity of the detection method used was verified;the three-dimensional shear wave veloc-ity structures were constructed by interpolating the data from all the measured points;the spatial distribution of the underground mined-out collapse area and faults was depicted by using the shear wave velocity differ-ence,that the stratigraphic stability of the known mined-out area was deduced and two hidden geological haz-ard areas were speculated.The survey results show that the microtremor detection method has good technical advantages and application prospects for the detection of metal mining collapse areas and therefore could pro-vide a geophysical basis for the subsequent comprehensive management of the area.关键词
金属矿采空塌陷/微动探测/频散曲线/三维横波速度结构/霍邱县某铁矿Key words
Metal mining collapse/Microtremor survey/Dispersion curve/Three-dimensional shear wave velocity structures/an iron deposit in Huoqiu County分类
地质学引用本文复制引用
廖圣柱,万子轩,贾慧涛..微动方法在金属矿采空区三维探测中的应用——以安徽霍邱县某铁矿采空塌陷区为例[J].华南地质,2023,39(4):643-654,12.基金项目
安徽省自然资源厅科技项目(编号:2022-K-13) （编号:2022-K-13）
