Acquisition of a Servo-Controlled Bi-axial Test System for Geomechanics and Structural Engineering Applications

9521686 Pyrak-Nolte土木工程和地质科学系在圣母大学是非常适合开发一个独特的计划，以调查地质力学和结构组件的国家的基础设施，因为它的跨学科性质。 购买最先进的测试设施将以综合方式扩大我们的努力。 本提案的目的是获得一个具有静态和动态加载能力的伺服控制双轴液压试验系统，以创建一个可用于测试的系统：（）承受循环和动态载荷的结构部件;（2）模拟浅层地应力作用下岩土的响应，即在工程现场或采矿或废物隔离深度处遇到的应力。 工程结构部件上的地震条件将使用动态致动器进行模拟，动态致动器可以在部件受到垂直致动器的正常载荷时施加水平位移。 ***

9521686 Pyrak-Nolte The Department of Civil Engineering and Geological Sciences at the University of Notre Dame is ideally suited for developing a unique program to investigate the geomechanical and structural components for the nation's infrastructure because of its interdisciplinary nature. The acquisition of a state-of-the art test facility will amplify the thrust of our effort in an integrated manner. The objective of this proposal is to acquire a servo-controlled bi-axial hydraulic test system with both static and dynamic loading capabilities to create a system that can be used to test: () structural components subjected to cyclic and dynamic loads; and (2) the response of rocks and soils subjected simulated shallow crustal stresses, i.e. stresses encountered at engineering sites or at mining or waste isolation depths. Earthquake conditions on engineering structural components will be simulated with dynamic actuators that can apply horizontal displacements while the components are subjected to normal loads from the vertical actuator. ***