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首页> 外文会议>Deep Foundations Institute 28th Annual Conference on Deep Foundations: Deep Foundations in Compressible Soil and Soft Rock >HISTORICAL EVOLUTION OF THE MICROPILE 'PALO RADICE'
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HISTORICAL EVOLUTION OF THE MICROPILE 'PALO RADICE'

机译：微观“ PALO半径”的历史演变

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摘要

The palo radice, invented by Fernando Lizzi in 1952, is now known the world over, and has achieved global acceptance and success. Owing to the vision of one man, the field of underpinning has been changed forever. The climate in the United States has placed a high demand on the development of urban areas. The constraints presented at urban sites often require innovative solutions, rather than traditional construction methods. The micropile, although more expensive than some other traditional foundation methods has proven a viable option for underpinning existing structures and new foundation construction. This is due in large part to the advancements of specialty contractors and fabricators, as they endeavor to continually explore new techniques, materials and testing procedures. The industry has pushed the limits of the technology. Industry advancements have also led to, the evolution of the micropile into to a highly loaded individual element with little or no redundancy in many cases. As well, many new contractors are entering the micropile installation market with little or no experience. This seems in stark contrast to the original objective of Dr. Lizzi's palo radice, in which numerous lightly loaded piles act as a system. Specialty contractors, engineers, and material fabricators of the micropile industry need to be cognizant of these progressions, and take great stock and pride in the accomplishments and advancements of the palo radice to the modern day micropile. However, it is vital that industry professionals bear in mind the original applications and intent of the micropile will always be best served with the philosophy of Dr. Lizzi and the palo radice.
机译：费尔南多·里齐（Fernando Lizzi）于1952年发明的萝卜圆心现已享誉全球，并获得了全球的认可和成功。由于一个人的眼光，基础领域已被永远改变。美国的气候对城市地区的发展提出了很高的要求。在城市现场出现的限制通常需要创新的解决方案，而不是传统的施工方法。尽管微型桩比其他一些传统地基方法价格昂贵，但已证明是支撑现有结构和新地基建筑的可行选择。这在很大程度上是由于专业承包商和制造商的进步，因为他们努力不断探索新技术，材料和测试程序。行业推动了技术的极限。行业的进步还导致在许多情况下，微型桩演变成高负荷的单个元件，而很少或几乎没有冗余。同样，许多新承包商很少或根本没有经验进入微型桩安装市场。这似乎与Lizzi博士的palo radice的原始目标形成了鲜明的对比，在该目标中，许多轻载的桩都充当一个系统。微型桩行业的专业承包商，工程师和材料制造商需要意识到这些进展，并为现代微型桩的成就和进步赢得巨大的自豪感。但是，至关重要的是，行业专家必须牢记Lizzi博士的理念和palo radice永远能够最好地满足微型桩的原始应用和意图。

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