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Non-Destructive Testing for Earthquake Hazards Mapping, Southeast Missouri, USA

机译：地震危害的非破坏性测试，美国东南密苏里州地震危险

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摘要

Multi-Channel Analysis of Surface Waves (MASW), Seismic Cone Penetrometer Test, Cross-hole and Ultrasonic Pulse Velocity shear wave velocity (Vs) data were acquired at 40 sites in the Poplar Bluff study area, southeast Missouri, USA. Poplar Bluff is located near the New Madrid Seismic Zone of southeast Missouri and adjacent states, the scene of three magnitude 7.5 to 8.0 earthquakes in 1811-1812. The Poplar Bluff area includes terrain in two very different physiographic provinces, the alluvial soil lowlands of the Mississippi Embayment and the residual soil uplands of the Ozarks. Shear wave velocity data along with databases of soil stratigraphy were used to characterize the geomaterials and generate a suite of 3-D maps depicting spatial variations in thickness, stratigraphy and Vs of soils in the Poplar Bluff area. A 3-D shallow subsurface materials model, complete with Vs test data, and an earthquake soil amplification map were prepared as well. These maps depict the lateral variability of the shallow subsurface geomaterials' Vs and stratigraphy, and their range of values or properties. The MASW technique for determining Vs was found to be the most useful and economical.
机译：在美国东南部密苏里州的40个位点，在40个地点获得了表面波（MasW），地震锥形孔隙计测试，交叉孔和超声波脉冲速度剪切波速度（VS）数据的多声道分析。 Poplar Bluff位于东南密苏里州的新马德里地震区附近，该场景为1811年至1812年的三级7.5至8.0地震。杨树布鲁夫地区包括两个非常不同的地貌省份的地形，密西西比州的冲积土壤低地和欧扎克的残余土壤高地。剪切波速度数据以及土层层数据库的数据库用于表征地质材料，并产生一套三维地图，描绘了杨树诈唬地区的厚度，地层和瓦氏土壤的空间变化。三维浅层地下材料模型，配备VS测试数据，以及地震土壤放大图也是如此。这些地图描绘了浅层地下造物材料的横向变异性，以及它们的价值范围或属性。发现用于确定VS的MASW技术是最有用和最经济的。

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