A NEES Geotechnical Centrifuge Facility

地震工程模拟网络（NEES）项目是美国国家科学基金会重大研究设备计划资助的一个项目。根据NEES项目的合作协议，在加州大学戴维斯分校建立了一个NEES离心机地震工程研究设备基地。加州大学戴维斯分校将设计、购买、建造、安装、调试和操作新设备，并对现有的土工离心机进行升级。升级后的离心机将于2004年或更早投入使用，并将作为国家共享使用的NEES设备站点进行管理，具有远程观测和远程操作能力，到2014年提供新的地震工程研究测试能力。该NEES设备站点将通过高性能网络连接到NEES合作实验室。共享使用的获取和培训将通过NEES联盟进行协调。该奖项是对提交给项目招标NSF 00-6， NEES：地震工程研究设备的提案进行同行评审的结果。这台离心机位于加州大学戴维斯分校校园以西两英里的岩土建模中心，自1996年以来一直由加州大学戴维斯分校的教职员工、学生和其他研究人员使用。加州大学戴维斯分校将为离心机的住房和操作以及存储新设备提供基础设施改进。该合同提供以下设备：(a)对离心机进行修改，使其能够运行高达80g， (b)升级到现有的水平振动筛，(c)一个大型铰链板容器，(d)一个双轴水平-垂直振动筛，(e)一个四自由度机器人，机器人工具和相关软件，能够安装和/或操作测试设备，如桩，穿透计，深层土壤振动器和视频检查设备，而无需停止离心机。(f)通过校园千兆以太网骨干网提供具有互联网远程观测/远程操作能力的网络数据采集系统，(g)具有高分辨率投影系统的数据可视化能力，(h)根据集成微仪器公司的子合同开发的20个双轴数字MEMS加速度计，以及(i)根据佐治亚理工学院的子合同开发的断层成像和地球物理测试工具/方法。升级后的离心机提供的能力将使研究人员能够研究地震工程中的重要问题，例如：软土或液化土中的土-桩-结构相互作用；竖向振动对桥梁结构、工业和生命线设施、边坡和堤防大坝的影响；以及减轻液化危害的地面改善方法。加州大学戴维斯分校将把实验与升级后的离心机整合到其研究项目、本科和研究生课程中，并为外部研究人员提供培训机会。

CMS-00865566KutterThe Network for Earthquake Engineering Simulation (NEES) Program is a project funded under the NSF Major Research Equipment Program. This cooperative agreement, under the NEES Program, establishes a NEES centrifuge earthquake engineering research equipment site at the University of California (UC), Davis. UC Davis will design, purchase, construct, install, commission, and operate new equipment for, and upgrades to, its existing Geotechnical Centrifuge. The upgraded Centrifuge will be operational by 2004 or earlier and will be managed as a national shared-use NEES equipment site, with teleobservation and teleoperation capabilities, to provide new earthquake engineering research testing capabilities through 2014. This NEES equipment site will be connected to the NEES collaboratory through a high performance network. Shared-use access and training will be coordinated through the NEES Consortium. This award is the outcome of peer review of this proposal submitted to program solicitation NSF 00-6, NEES: Earthquake Engineering Research Equipment. This Centrifuge is located in the Center for Geotechnical Modeling, two miles west of the University of California, Davis campus, and has been used by UC Davis faculty and students and other researchers since 1996. UC Davis will provide infrastructure improvements for housing and operating the Centrifuge and for storing new equipment. This award provides the following equipment: (a) modifications to the Centrifuge to enable operation up to 80 g, (b) upgrades to the existing horizontal shaker, (c) one large hinged-plate container, (d) one biaxial horizontal-vertical shaker, (e) one four degree-of-freedom robot, robot tools, and associated software, capable of installing and/or operating test devices such as piles, penetrometers, deep soil vibrators, and video inspection devices without stopping the Centrifuge, (f) networked data acquisition systems with Internet teleobservation/teleoperation capability provided through the campus' Gigabit Ethernet Backbone, (g) data visualization capabilities with a high resolution projection system, (h) ten strands of 20 dual-axis digital MEMS accelerometers developed under a subaward to Integrated Mico Instruments, and (i) tomographic imaging and geophysical testing tools/methodologies, developed under a subward to the Georgia Institute of Technology. The capabilities provided by the upgraded Centrifuge will enable researchers to investigate important problems in earthquake engineering such as: soil-pile-structure interaction in soft or liquefiable soils; the effects of vertical shaking on bridge structures, industrial and lifeline facilities, slopes, and embankment dams; and ground improvement methods to mitigate liquefaction hazards. UC Davis will integrate experimentation with the upgraded Centrifuge into its research program and undergraduate and graduate curricula and provide training opportunities for outside researchers.