Hydrogeologic Site Characterization Using Azimuthal Resistivity Surveys
Hydrogeologic Site Characterization Using Azimuthal Resistivity Surveys
复制标题
DOI：
10.4133/jeeg3.4.179
复制
发表时间：
1998-12
影响因子：
1
通讯作者：
L. Marín;B. Steinich;D. R. Jaglowski;M. Barcelona
中科院分区：
文献类型：
--
作者：
L. Marín;B. Steinich;D. R. Jaglowski;M. Barcelona
这项工作的目的是评估方位电阻率测量(ARS)是否像在裂隙/节理介质中所做的那样，为绘制松散沉积物中优先的水力传导性方向提供诊断信息。19个方位电阻率测量(ARS)在密歇根综合修复技术实验室(MIRTL)的一个浅层松散砂砾含水层内的三个不同位置进行。进行探测的三个地点中有两个位于使用溴化物进行受控示踪剂释放的流动路径上。ARS使用温纳阵列进行，电极间隔(AB/3)范围为4.0-11.0米。电各向异性比给出了所有19个测深的范围为1.08-1.37。从1996年7月起，利用连续水位记录仪确定的诱发羽流的地下水方向是沿着区域流动路径。因此，观测到的电学各向异性比率并不显著。
The purpose of this work is to evaluate whether azimuthal resistivity surveys (ARS) provide diagnostic information for mapping preferred hydraulic conductivity directions in unconsolidated sediments as they do in fractures/jointed media. Nineteen azimuthal resistivity surveys (ARS) were conducted in three different places within a shallow, unconsolidated, sand and gravel aquifer located at the Michigan Integrated Remediation Technology Laboratory (MIRTL). Two of the three places where soundings were conducted lie along the flow path where a controlled tracer release using bromide took place. The ARS were conducted using a Wenner array, with electrode separations (AB/3) that ranged from 4.0–11.0 meters. Electrical anisotropy ratios gave a range of 1.08–1.37 for all 19 soundings. Ground water direction of the induced plume was along the regional flow path as determined for the period from July 1996, using continuous water level recorders. Thus, the observed electrical anisotropy ratios were not significant ...