Upgrade of Geodynamics Laboratory Equipment

0201297, Ronaldo Luna， U. Missouri-Rolla“地球动力学实验室设备升级”这项行动是对密苏里大学罗拉分校土木工程系现有的地球动力学设备进行升级和现代化改造。现有设备陈旧过时，需要升级或更换。它将升级为全数字控制和数据采集。UMR土木工程大楼正在翻新，一个新的地球动力学实验室将容纳这些设备。新设备将由能够在低应变和大应变下进行动态土测试的三轴设备组成，以便开发用于地面和结构响应分析的模量退化和阻尼曲线。这些升级和现代化将使新的地球动力学实验室成为最先进的研究和研究生教学实验室。它们将立即用于两个现有项目，以及需要土壤动态材料特性的未来项目。该设备将用于地震工程研究项目；特别是与美国中西部地区有关的项目。该国最大的可液化土壤沉积物之一位于密苏里州东南角的新马德里地震带附近和邻近的州（密西西比海湾）。

0201297, Ronaldo Luna, U. Missouri-Rolla"Upgrade of Geodynamics Laboratory Equipment"This action is to upgrade and modernize the existing geodynamics equipment available in the Department of Civil Engineering at the University of Missouri at Rolla. The existing equipment is old and obsolete and requires upgrading or replacement. It will be upgraded to full digital control and data acquisition. The UMR Civil Engineering Building is being renovated and a new geodynamics laboratory will house this equipment. The new equipment will consist of triaxial equipment capable of dynamic soil testing at the low and large strains, in order to develop modulus degradation and damping curves to be used in ground and structural response analysis. These upgrades and modernization will make the new geodynamics laboratory a state-of-the-art laboratory for research and graduate instruction. They will be of immediate use in two existing projects, and for future projects that require dynamic material properties of soils. The equipment will be used in earthquake engineering research projects; in particular for projects related to the Midwest United States region. One of the largest liquefiable soil deposits in the country occurs near the New Madrid Seismic Zone in the southeastern corner of Missouri and adjoining states (the Mississippi Embayment).