高密度电阻率法在雷家沟隧道工程中的应用研究
详细信息 查看官网全文
- 英文论文题名：The application of high-density resistivity method to exploration of Leijiagou Tunnel
- 论文作者：宋敬泰
- 英文论文作者：SONG Jing-tai ; Sinopec petroleum engineering corporation
- 年：2016
- 作者机构：中石化石油工程设计有限公司;
- 论文关键词：高密度电阻率法 ; 视电阻率 ; 隧道工程 ; 覆盖层厚度 ; 地下水 ; 岩体完整程度
- 英文论文关键词：High-density resistivity method ; Apparent resistivity ; Tunnel ; Overburden thickness ; Groundwater ; Integrity of rock mass
- 会议召开时间：2016-08-26
- 会议录名称：石油天然气勘察技术中心站第二十二次技术交流会论文集
- 语种：中文
- 分类号：U452.11
- 学会代码：ZJKC
- 会议名称：石油天然气勘察技术中心站第二十二次技术交流会
- 会议地点：中国河北廊坊
- 主办单位：中国建筑学会工程勘察分会、石油天然气勘察技术中心站
- 学会名称：中国建筑学会工程勘察分会
- 页数：4
- 文件大小：1130k
- 原文格式：D
- 会议级别：全国
摘要
本文对高密度电阻率法在隧道勘察中的应用作了初步探讨,分析了高密度电阻率法在探测覆盖层厚度、岩性及地层分布、地下水分布和岩体完整程度四个方面的应用效果。通过与钻探、波速测试和地质调绘等资料的对比分析,本文认为:利用高密度电阻率法探测覆盖层厚度时电极距不能超过覆盖层一般厚度;电阻率剖面所呈现出的视电阻率的较大差异,并不一定预示着岩性的变化,即使这种差异有102级;相对于岩性、岩石风化程度、岩体完整性等指标,地下水对岩体电阻率的影响更大;在隧道工程中,探测岩体完整程度应以波速测试和钻探资料为主,岩体视电阻率与岩体完整程度相关性差。
This paper illustrates the application of high-density resistivity method in tunnel exploration and discusses its application effect in detecting overburden thickness, lithologic and stratigraphic distribution,distribution of groundwater and integrity of rock mass. Through comparing the apparent resistivity results with drilling data, wave-velocity results and geological mapping results, the following conclusions are withdrawn: To define the depth of overburden layer, electrode shall be deployed with a distance no more than the general overburden thickness; a large variation of apparent resistivity in resistivity section does not necessarily suggest a variation of lithology, even with a magnitude of 102; The influence of groundwater on resistivity is larger than other factors such as lithology, weathering degree of rock and integrity index of rock mass; The correlation degree of apparent resistivity and integrity of rock mass is poor, and wave velocity test and core drilling should be given priority in detecting the integrity of rock mass.
This paper illustrates the application of high-density resistivity method in tunnel exploration and discusses its application effect in detecting overburden thickness, lithologic and stratigraphic distribution,distribution of groundwater and integrity of rock mass. Through comparing the apparent resistivity results with drilling data, wave-velocity results and geological mapping results, the following conclusions are withdrawn: To define the depth of overburden layer, electrode shall be deployed with a distance no more than the general overburden thickness; a large variation of apparent resistivity in resistivity section does not necessarily suggest a variation of lithology, even with a magnitude of 102; The influence of groundwater on resistivity is larger than other factors such as lithology, weathering degree of rock and integrity index of rock mass; The correlation degree of apparent resistivity and integrity of rock mass is poor, and wave velocity test and core drilling should be given priority in detecting the integrity of rock mass.
引文
[1]伍开江,周启友.基于序列二次规划方法的高密度电阻率反演[J].地球科学与环境学报,2005,27(3):63-67.
[2]刘晓东,张虎生等.高密度电法在宜春市岩溶地质调查中的应用[J].中国地质灾害与防治学报,2002,13(1):72-75.
[3]吴长盛.北大港水库堤坝裂缝检测与评定技术研究[J].水利水电技术,2001(5):61-63.
[4]李乃旺,李晓昭等.高密度电法在老山隧道中的应用[J].地球科学与环境学报,2007,29(4):412-415.
[5]李丹,肖宽怀.高密度电法在铁峰山2号隧道.工程探测中的应用[J].工程地球物理学报,2006,3(3):197-200.
[6]胡文寿,张显志.论工程岩体完整性的评价方法[J].西安工程学院学报,2001,23(3):50-54.
[2]刘晓东,张虎生等.高密度电法在宜春市岩溶地质调查中的应用[J].中国地质灾害与防治学报,2002,13(1):72-75.
[3]吴长盛.北大港水库堤坝裂缝检测与评定技术研究[J].水利水电技术,2001(5):61-63.
[4]李乃旺,李晓昭等.高密度电法在老山隧道中的应用[J].地球科学与环境学报,2007,29(4):412-415.
[5]李丹,肖宽怀.高密度电法在铁峰山2号隧道.工程探测中的应用[J].工程地球物理学报,2006,3(3):197-200.
[6]胡文寿,张显志.论工程岩体完整性的评价方法[J].西安工程学院学报,2001,23(3):50-54.