An Annovative In Sita Testing SS-CPT Based Geotechnical Tomography/Technique for Soil Stratification

该项目提高了电磁地球物理层析成像的技术水平，这是一种在医学诊断中成功应用的计算机化轴向层析成像(CAT)的改编。地球物理层析成像基于机械波，已被用于研究一侧长达1000米的矩形区域，以及分析地球深层结构。消息来源包括气枪、炸药和地震数据。该方法的能力得到了增强，使用了被称为地震锥体的地震检波器，以检测人工产生的波的到达，以确定地球物理特征。这种方法被称为震源触探试验(SS-CPT)。然而，地震锥体有几个局限性。这项研究提出了一种评估方法来解决这些局限性。这项实地评估将在加利福尼亚州有充分记录的地点进行，那里已经进行了广泛的岩土调查，以确定地点分层。

This project enhances the state of the art in electromagnetic geophysical tomography, an adaptation of Computerized Axial Tomography (CAT) used successfully in medical diagnosis. Geophysical tomography, based on mechanical waves, has been used to study rectangular regions up to 1000 meters on a side, as well as to analyze deep earth structures. Sources have included airguns, explosives and earthquake data. The method's capabilities have been augmented using geophones, called seismic cones, to detect the arrival of artificially generated waves to determine geophysical characteristics. This approach is referred to as the seismic source cone penetration test (SS-CPT). However, the seismic cones have several limitations. This research proposes evaluation of a method to address these limitations. This field evaluation will take place at well documented sites in California where extensive geotechnical investigations have already been performed to establish site stratification.