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首页> 外文会议>Eighth International Conference on Tailings and Mine Waste '01, Jan 16-19, 2001, Fort Collins, Colorado, USA >Application of cone penetrometer technology to phosphate mining exploration
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Application of cone penetrometer technology to phosphate mining exploration

机译：锥形渗透仪技术在磷矿勘探中的应用

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摘要

A novel new approach was demonstrated for the site characterization and exploration of phosphate bearing materials at a site in Florida. The new approach consists of using Cone Penetrometer Technologies (CPT) to determine in-situ and real-time the amount of overburden, the quality (i.e. phosphate content) of the phosphate bearing materials, as well as the engineering load bearing capacity of the site. The exploration tools consisted of a cone penetrometer push rig and a standard CPT probe connected to a gamma spectroscopy module. The CPT sensors were used to define the soil stratigraphy, groundwater level and the strength of the soils. The gamma spectroscopy module consisted of a downhole sodium iodine crystal combined with an uphole spectroscopy system designed to detect gamma emitting particles. Although phosphate is not a natural gamma emitter, it is co-deposited with low levels of uranium that are sensed by the gamma tool. Initial correlations of the gamma response and the phosphate quality show a strong correlation. The gamma tool correctly identified the appropriate depth of mining in two demonstration penetrations that were conducted. Both gross gamma and spectral gamma measurements were obtained during the demonstration. The details of the test results are discussed.
机译：在佛罗里达州的一个站点上，一种新颖的新方法被证明可以对含磷酸盐的材料进行站点表征和勘探。新方法包括使用锥孔渗透仪技术（CPT）确定原位和实时覆盖量，含磷酸盐材料的质量（即磷酸盐含量）以及现场的工程承载能力。勘探工具包括一个锥形渗透仪推杆钻具和一个连接到伽马能谱模块的标准CPT探头。 CPT传感器用于定义土壤地层，地下水位和土壤强度。伽马能谱模块由井下钠碘晶体与旨在检测伽马发射颗粒的井上能谱系统组成。尽管磷酸盐不是天然的伽马射线发射体，但它会与伽马工具检测到的少量铀共沉积。伽马响应与磷酸盐质量的初始相关性显示出很强的相关性。伽马工具在进行的两次演示渗透中正确地确定了适当的采矿深度。在演示过程中获得了总伽马值和光谱伽马值。讨论了测试结果的详细信息。

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