Behavior of Soil Nailed Walls during the 17 October 1989 Loma Prieta Earthquake

这项研究计划是 收集易失效数据倡议 北方 加州（洛马普列塔）地震。 目的是获得关于 五个土钉墙的性能 洛马普列塔战役期间的弗朗西斯科湾区 地震 这些易逝的数据将是 与之前相比， 地震测量在同一墙壁上，在 为了评价土壤的性能 在地震条件下钉墙。 土钉支护是一种施工程序， 至海岸垂直土壤切口， 永久目的。 相关程序 包括传统的士兵桩和领带- 后台系统 因为不确定性 参与土钉支护设计 墙，建筑官员表示， 有关土钉支护的关注（工程 1898年10月5日）。 因此，在本发明中， Felio教授被任命为 美国土木工程师学会 洛杉矶分部土壤工作委员会 为了建立设计， 施工和监测准则， 洛杉矶市。 本委员会 一直在收集关于这个问题的信息， 以及联系研究人员，建筑师， 美国的设计师们 信息. 该调查由教授监督 Felio和Pirooz Barar先生 和联营公司，旧金山弗朗西斯科，土钉 加州的设计师， 土钉支护施工监理 在旧金山弗朗西斯科，奥克兰和洛杉矶的墙壁 洛杉矶地区

This research program is part of the initiative to collect perishable data resulting from the 17 October 1989 Northern California (Loma Prieta) earthquake. The objective is to obtain data on the performance of five soil nailed walls in the San Francisco Bay area during the Loma Prieta earthquake. This perishable data will be compared at a later time with the pre- earthquake measurements on the same walls, in order to evaluate the performance of soil nailed walls under seismic conditions. Soil nailing is a construction procedure used to shore vertical soil cuts for temporary or permanent purposes. Related procedures included conventional soldier pile and tie- back systems. Because of the uncertainties involved with the design of soil nailed walls, building officials have expressed concern regarding soil nailing (Engineering News Record, October 5, 1898). As a result, Professor Felio was appointed Chairman of the American Society of Civil Engineers-Los Angeles Section Task Committee on Soil Nailing in order to establish design, construction, and monitoring guidelines for the City of Los Angeles. This committee has been collecting information on the subject as well as contacting researchers, constructors, and designers in the United States for information. The survey is being supervised by Professor Felio and Mr. Pirooz Barar of Pirooz Barar and Associates, San Francisco, a soil nailing designer in California with experience in supervising the construction of soil nailed walls in San Francisco, Oakland, and the Los Angeles area.