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

该研究项目是收集1989年10月17日北加州（洛马·普里塔）地震的易腐数据倡议的一部分。目的是获得在洛马·普里塔地震期间旧金山湾区五座土钉墙的性能数据。为了评估土钉墙在地震条件下的性能，这些易变质的数据将在稍后的时间与地震前在同一墙壁上的测量结果进行比较。土钉是一种施工程序，用于固定临时或永久目的的垂直土壤切割。相关程序包括常规的士兵桩和回扎系统。由于土钉墙设计的不确定性，建筑官员已经表达了对土钉的关注（工程新闻记录，1898年10月5日）。因此，Felio教授被任命为美国土木工程师学会洛杉矶土钉分会任务委员会主席，为洛杉矶市制定设计、施工和监测指导方针。该委员会一直在收集有关该主题的信息，并与美国的研究人员、建造者和设计师联系以获取信息。该调查由Felio教授和旧金山Pirooz Barar and Associates公司的Pirooz Barar先生监督。Pirooz Barar先生是加州的一名土钉设计师，在旧金山、奥克兰和洛杉矶地区监督土钉墙的施工方面具有丰富的经验。

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.