Arcadis US, Inc., Tucson, AZ 85716, USA.
Waste Manag Res. 2010 Apr;28(4):364-72. doi: 10.1177/0734242X09357079. Epub 2010 Feb 2.
A former radioactive waste disposal site is surveyed with two non-intrusive geophysical techniques, including magnetic gradiometry and electromagnetic induction. Data were gathered over the site by towing the geophysical equipment mounted to a non-electrically conductive and non-magnetic fibre-glass cart. Magnetic gradiometry, which detects the location of ferromagnetic material, including iron and steel, was used to map the existence of a previously unknown buried pipeline formerly used in the delivery of liquid waste to a number of surface disposal trenches and concrete vaults. The existence of a possible pipeline is reinforced by historical engineering drawing and photographs. The electromagnetic induction (EMI) technique was used to map areas of high and low electrical conductivity, which coincide with the magnetic gradiometry data. The EMI also provided information on areas of high electrical conductivity unrelated to a pipeline network. Both data sets demonstrate the usefulness of surface geophysical surveillance techniques to minimize the risk of exposure in the event of future remediation efforts.
对一个前放射性废物处置场进行了两项非侵入式地球物理技术的勘测，包括磁梯度测量和电磁感应。通过将地球物理设备安装在非导电和非磁性的玻璃纤维推车上，在该地点进行了数据收集。磁梯度测量用于探测铁磁性物质（包括铁和钢）的位置，用于绘制先前未知的地下管道的位置图，该管道用于输送液体废物到多个表面处置沟和混凝土拱顶。历史工程图纸和照片证实了可能存在管道的情况。电磁感应（EMI）技术用于绘制高电导率和低电导率区域的地图，这些区域与磁梯度测量数据相吻合。EMI 还提供了与管道网络无关的高电导率区域的信息。这两个数据集都表明，地面地球物理监测技术对于减少未来修复工作中暴露的风险非常有用。
