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    提高深埋成品油管道探测精度的方法

    鲁永康 马文帅 杨越 潘团结 张虎 鲁星 刘蕊旭

    鲁永康, 马文帅, 杨越, 潘团结, 张虎, 鲁星, 刘蕊旭, 2017. 提高深埋成品油管道探测精度的方法. 地球科学, 42(4): 641-644. doi: 10.3799/dqkx.2017.051
    引用本文: 鲁永康, 马文帅, 杨越, 潘团结, 张虎, 鲁星, 刘蕊旭, 2017. 提高深埋成品油管道探测精度的方法. 地球科学, 42(4): 641-644. doi: 10.3799/dqkx.2017.051
    Lu Yongkang, Ma Wenshuai, Yang Yue, Pan Tuanjie, Zhang Hu, Lu Xing, Liu Ruixu, 2017. A Method for Improving Detecting Accuracy of Locating Deeply Buried Refined Oil Pipelines. Earth Science, 42(4): 641-644. doi: 10.3799/dqkx.2017.051
    Citation: Lu Yongkang, Ma Wenshuai, Yang Yue, Pan Tuanjie, Zhang Hu, Lu Xing, Liu Ruixu, 2017. A Method for Improving Detecting Accuracy of Locating Deeply Buried Refined Oil Pipelines. Earth Science, 42(4): 641-644. doi: 10.3799/dqkx.2017.051

    提高深埋成品油管道探测精度的方法

    doi: 10.3799/dqkx.2017.051
    详细信息
      作者简介:

      鲁永康 (1946-),男,教授级高工,主要从事地下管线探测的理论与方法技术的研究、教学与探测实践等工作.ORCID:0000-0001-5243-2751.E-mail: 18986184740@126.com

    • 中图分类号: P631.2

    A Method for Improving Detecting Accuracy of Locating Deeply Buried Refined Oil Pipelines

    • 摘要: 为满足工程建设的需要,如何提高深埋地下管线的探测精度是探测工作中的难点.在地铁盾构土建施工的工地,采用FDEM (frequency domain electromagnetic method) 法对埋深约16 m的成品油管道进行探测,第一步是经过地面测线X方向的探测工作,确定了目标管道的走向Y并缩小了范围,因为受干扰物体的影响,所以两种工作频率探测结果之间的定深误差很大,尚未满足工程实际的需要;第二步是在经过距目标管道5.0 m处的两个孔内的Z方向进行探测,获得了离开目标管道较近“测线”上的Hz实测曲线;第三步是用Hz理论曲线与Hz实测曲线进行拟合反演,最终获得了定位、定深误差分别为20 cm、10 cm以内的探测精度,为地铁施工建设提供了精准的基础性技术资料.孔内Z方向的探测工作表明,“测线”离目标管道更近,又可以避开地面X方向测线上的干扰物的影响,可以提高探测精度.孔内探测是对地面X方向探测成果的检验,值得推广到对地面探测成果质量的验收中;采用拟合软件进行推断解释,是对探测数据的信息处理技术,将在FDEM法探测地下管线中得到广泛的应用.

       

    • 图  1  两种频率地面实测归一化Hx曲线

      Fig.  1.  Normalized curve Hx for two frequency

      图  2  ZK1Y孔实测归一化Hz曲线与理论Hz曲线拟合反演

      Ⅰ.实测Hz曲线;Ⅱ.高拟合度Hz理论曲线;Ⅲ.深度改变了±20 cm的Hz理论曲线

      Fig.  2.  Measured normalized curve Hz and theoretical curve Hz for ZK1Y borehole

      图  3  ZK2Z孔实测归一化Hz曲线与理论Hz曲线拟合反演

      Ⅰ.实测Hz曲线;Ⅱ.高拟合度Hz理论曲线;Ⅲ.深度改变了±20 cm的Hz理论曲线

      Fig.  3.  Measured normalized curve Hz and theoretical curve Hz for ZK2Z borehole

      表  1  两种频率用“80%法”定位、定深结果

      Table  1.   The result of depth and location with "80% method"

      1 kHz (m)3 kHz (m)两频率之间的解释误差 (m)
      定位-1.90-0.741.16
      定深15.4022.607.20
      注:减去探测线圈的高度40 cm.
      下载: 导出CSV

      表  2  两个孔内实测与理论Hz拟合反演结果

      Table  2.   The fitting result of Measured and theoretical Hz for two boreholes

      ZK1Y孔 (m)误差 (cm)ZK2Z孔 (m)误差 (cm)
      管心埋深15.70≤|±10|16.25≤|±10|
      管心与钻孔间距5.50±205.50±20
      下载: 导出CSV
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    出版历程
    • 收稿日期:  2016-12-13
    • 刊出日期:  2017-04-15

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