Planning for Site Selection, Installation and Operation of Geotechnical Strong-Motion Arrays

这一行动是为了支持两个讲习班，这两个讲习班将共同讨论岩土工程场地的强震台阵问题。具体地说，他们将记录目前和计划中的阵列；为岩土工地未来的强震仪器制定战略计划；并制定长期实施计划和管理结构。研讨会的参加者将来自美国和其他正在进行重大地质强震监测的国家。在地表和地下部署强震仪器进行岩土监测，在直接测量地表地质的影响方面取得了重大进展。钻孔测量对解释地表观测和理解场地地质的非线性应力-应变行为的方法提供了关键的限制，直到并包括土壤破坏。钻孔测量提供了数据，以解决一些最基本的尚未解决的地震学和地震工程问题，包括非线性行为开始时的动态应变阈值，以及对应变限制地面运动的洞察。由于获取所需测量的成本很高，因此规划和广泛协调监测方案和倡议非常重要，以便在合理的时间段内最大限度地提高获得有用记录的可能性。第一期研讨会将记录当前的监测活动，并为未来的监测制定战略计划。第二期讲习班将制定协调的岩土强震监测的长期执行和管理结构。研讨会的报告将：(1)记录当前的岩土强震监测；(1)提供未来监测的战略计划、未来监测的实施计划以及未来监测的协调和管理计划。这两个讲习班的会议记录将由强震观测系统组织联合会(COSMOS)出版，并将以光盘形式分发。会议记录还将在COSMOS主页上公布，网址为http://www.cosmos-eq.org

This action is to support two workshops which, together, will address earthquake strong-motion arrays for geotechnical engineering sites. Specifically, they will document current and planned arrays; develop a strategic plan for future strong motion instrumentation for geotechnical sites; and develop a long-term implementation plan and management structure. The workshop participants will be from the United States and other countries where significant geotechnical strong-motion monitoring is being conducted.The deployment of strong-motion instruments at the surface and in the subsurface for geotechnical monitoring provides a major advance in the direct measurement of the effects of surface geology. Borehole measurements provide critical constraints on methods for interpreting surface observations and for understanding non-linear stress- strain behavior of site geology up to and including soil failure. Borehole measurements provide data to address some of the most basic unresolved seismological and earthquake engineering issues, including the dynamic strain threshold where non- linear behavior begins, with insights into strain-limited ground motions. Because the required measurements are costly to obtain, planning and broad coordination of monitoring programs and initiatives is highly important in order to maximize the likelihood of obtaining useful recordings in a reasonable time period.The first workshop will document the current monitoring activities, and develop a strategic plan for future monitoring. The second workshop will develop a long-range implementation and management structure for coordinated geotechnical strong-motion monitoring. The report from the workshop will: (1) document the current geotechnical strong-motion monitoring; (1) provide a strategic plan for future monitoring, an implementation plan for future monitoring, and a coordination and management plan for future monitoring. The Proceedings of the two workshops will be published by the Consortium of Organizations for Strong Motion Observation Systems (COSMOS) and will be distributed on CD-ROM. The proceedings also will be posted on the COSMOS Home Page, http://www.cosmos-eq.org