地球物理学进展 ›› 2019, Vol. 34 ›› Issue (4): 1584-1591.doi: 10.6038/pg2019CC0230

• 应用地球物理学Ⅱ(海洋、工程、环境、仪器等) • 上一篇    下一篇

综合物探技术在城市活动断裂调查中的应用——以乌鲁木齐八钢石化断裂为例

陈实1,刘云祯2,李延清1,金荣杰2,张静1   

  1. 1. 新疆维吾尔自治区地质调查院,乌鲁木齐 830000
    2. 北京市水电物探研究所,北京 100027
  • 收稿日期:2018-09-14 修回日期:2019-06-04 出版日期:2019-08-20 发布日期:2019-08-30
  • 作者简介:陈实,男,1992年生,新疆昌吉人,硕士,工程师,主要从事地球物理勘查及矿产资源调查工作.(E-mail: cugchenshi@163.com)
  • 基金资助:
    新疆维吾尔自治区国土资源厅2016年新疆乌鲁木齐市城市地质调查评价项目(S16-2-LQ04)

Application of integrated geophysical techniques in investigation of urban active faults:take Ürümqi Bagangshihua fracture as an example

CHEN Shi1,LIU Yun-zhen2,LI Yan-qing1,JIN Rong-jie2,ZHANG Jing1   

  1. 1. The Geological Survey Institute of Xinjiang Uygur Autonomous Region, ürümqi 830000,China;
    2. Beijing Research Institute of Hydropower and Geophysical Surveying, Beijing 100027,China
  • Received:2018-09-14 Revised:2019-06-04 Online:2019-08-20 Published:2019-08-30

摘要:

城市活动断裂调查是城市地质调查的基础工作.为探讨综合物探方法在城市活动断裂探测应用中的适宜性,本文以乌鲁木齐市八钢石化断裂为研究对象,采用天然源面波技术及高密度电法的综合物探技术对活动断裂进行探测,其中天然源面波技术为试验性地应用在西北地区城市地质调查领域.结果表明:天然源面波探测成果结合高密度电法的高精度电阻率剖面,对比分析后详细划分了断层边界及两侧地层分层情况,识别了断层性质和活动时间,对先期遥感解译中的断层位置进行了位置修正,并通过钻探工作验证.实践成果证实了天然源面波技术由于具有无需人工震源、场地要求条件低及分层准确等优势,可有效应用在复杂城市环境中,应用成果对后期城市地质调查中活动断裂的探测研究工作具有指导意义.

关键词: 综合物探技术, 城市活动断裂, 天然源面波, 高密度电法, 应用

Abstract:

The investigation of urban active faults is the basic work of urban geological survey. In order to explore the suitability of integrated geophysical techniques in the investigation of urban active faults, this paper take ürümqi Bagangshihua Fracture as the research object, and use integrated geophysical techniques which included the natural source surface wave technology and high density resistivity method to detect active faults. Therein, natural source surface wave technology is experimentally applied in the field of urban geological survey in Northwest China. The results show that natural source surface wave detection results combined with high-resolution resistivity profiles of high-density resistivity method, after comparative analysis, the fault boundary and stratigraphic layers on both sides were divided in detail, the character and activity time of the fault were identified, the location of the fault in the early remote sensing interpretation was corrected, and verified by drilling work. Practical results confirm that natural source surface wave technology can be effectively applied in complex urban environment because of its advantages of no artificial source, low site requirements and accurate stratification. The application results have guiding significance for the exploration and research of active faults in later urban geological survey.

Key words: Integrated geophysical techniques, Urban active fault, Natural source surface wave method, High density electrical method, Application

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