A NEES Geotechnical Centrifuge Facility

CMS-00865566 Kutter地震工程模拟网络(NEES)计划是NSF重大研究设备计划资助的一个项目。根据NEES计划，这项合作协议将在加州大学戴维斯分校建立NEES离心机地震工程研究设备基地。加州大学戴维斯分校将为其现有的岩土离心机设计、采购、建造、安装、调试和操作新设备，并对其进行升级。升级后的离心机将在2004年或更早之前投入使用，并将作为国家共享的NEES设备场地进行管理，具有远程观测和远程操作能力，以提供到2014年的新的地震工程研究测试能力。NEES设备点将通过高性能网络连接到NEES协作室。共享使用准入和培训将通过NEES联盟进行协调。该奖项是对提交给NSF 00-6，NEES：地震工程研究设备计划征集项目的同行评审的结果。这台离心机位于加州大学戴维斯分校以西两英里处的岩土建模中心，自1996年以来一直由加州大学戴维斯分校的教职员工和学生以及其他研究人员使用。加州大学戴维斯分校将为离心机的安装和操作以及存储新设备提供基础设施改进。该合同提供下列设备：(A)对离心机进行改造，使之能够运行到80g，(B)对现有的水平振动器进行升级，(C)一个大型铰接板容器，(D)一个双向水平-垂直振动器，(E)一个四自由度机器人、机器人工具和相关软件，能够在不停止离心机的情况下安装和/或操作测试设备，如桩、渗透仪、深层土壤振动器和视频检查设备，(F)联网数据采集系统，具有通过校园千兆位以太网主干提供的互联网远程观测/远程操作能力，(G)具有高分辨率投影系统的数据可视化能力；(H)在授予综合微电子仪器的分奖下开发的10组20个双轴数字微机械加速计；(1)层析成像和地球物理测试工具/方法，在佐治亚理工学院的分包下开发。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，如：软土或可液化土壤中的土-桩-结构相互作用；垂直震动对桥梁结构、工业和生命线设施、斜坡和堤坝的影响；以及减轻液化危险的地基加固方法。加州大学戴维斯分校将把升级后的离心机的实验纳入其研究计划以及本科生和研究生课程，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.