Acquisition of a Triaxial Deformation Apparatus

本提案寻求资金购买一个三轴测试装置，用于测量地壳压力和温度下岩石的超声波速度、渗透率、电阻率和声发射活动。所要求的设备将针对中等压力（高达150 MPa）和温度（高达150°C）性能进行优化。请求是一个新英格兰研究AutoLab 1500，这是最便宜的商业选择（考虑到他们的学术折扣）。许多基本的地球科学问题依赖于对地壳温度和压力下流体饱和岩石的起源、组成、变形机制、物理性质和摩擦行为的透彻理解。深钻项目增加了对沉积岩输运（地震速度、渗透率、导电性和孔隙度）和力学（摩擦、强度）特性的实验室研究的需求。该仪器将支持的具体项目有：1)NanTroSEIZE ？日本西南俯冲带的跨学科研究，由IODP、SAFOD指导？研究断裂岩石的地球物理和地球化学性质；3)台湾龙浦断层钻探项目？其中一个组成部分将为乡村岩石、破坏和断层核心区的地球物理分析提供样品。PI通过NSF- ear、其他NSF部门和其他联邦机构获得了可观的研究经费。仪器将被安置在一个500平方英尺的房间里。地质系承诺提供支持（机械车间服务、电力、水和压缩空气）。PI将安装和操作设备。该项目将培养研究生、本科生、博士后和其他用户。外部用户将为在该设备上进行的实验提供材料和消耗品。三轴测试设备将支持马里兰大学的研究和培训。将接待来自马里兰大学和其他机构的研究生，以及与PI有许多合作的其他外部研究人员。本装置将纳入本科毕业论文。一个行业合作伙伴将被纳入学生潜在的就业机会。＊＊＊

0824908Zhu This proposal seeks funding to purchase a triaxial testing device for measuring rock ultrasonic velocity, permeability, electrical resistivity and acoustic emission activity at crustal pressures and temperatures. The requested apparatus will be optimized for moderate pressure (up to 150 MPa) and temperature (up to 150 °C) performance. Requested is a New England Research AutoLab 1500 which is the least expensive commercial option (given their academic discount). Many fundamental Geoscience questions rely on a thorough understanding of origin, composition, deformation mechanisms, physical properties, and frictional behavior of fluid-saturated rocks under crustal temperatures and pressures. Deep drilling projects have heightened the need for laboratory studies into sedimentary rock transport (seismic velocity, permeability, conductivity, and porosity) and mechanical (friction, strength) properties. Specific projects to be supported by the proposed apparatus are 1) NanTroSEIZE ? a Southwest Japan subduction zone interdisciplinary study directed by the IODP, 2) SAFOD ? a component of study in which geophysical and geochemical properties of fault rocks will be determined, and 3) The Taiwan Chelungpu-fault Drilling Project ? a component of which will provide samples for geophysical analysis of rocks in country, damage and fault core zones. The PI has considerable research funding through NSF-EAR, other NSF divisions and other federal agencies. The apparatus will be housed in a 500 ft2 room already allocated. The Department of Geology has pledged support (machine shop service, electricity, water and compressed air). The PI will install and operate the device. The PI will train graduate and undergraduate students, postdocs and other users. Outside users will fund materials and expendables for experiments performed on the apparatus. The triaxial testing device will support research and training at UMd. Graduate students from UMd and other institutions will be hosted as well other outside researchers with which the PI has numerous collaborations. The device will be incorporated into undergraduate senior theses. An industry partner will be incorporated to expose students to potential employment opportunities. ***