论文部分内容阅读
砂桩于十九世纪起源于欧洲,在长时间内由于没有实用的设计计算方法,缺少先进的施工工艺和施工设备而影响了它的发展。随着社会的不断发展,科学技术不断进步,砂桩的施工工艺和施工设备也得到相应的发展。 砂桩在五十年代引进我国,逐步得到推广,由于长期工程实践,人们逐步认识到,只靠加大基础断面有时也难以解决软弱地基的不均匀沉降,愈来愈认识到加固地基的重要性。加固地基的方法有多种,如填土垫层法、强夯法、加深基础法等,有的开挖土方量大、造价高,有的噪声大、使用受到限制,用砂桩
Sand piles originated in Europe in the 19th century. Due to the lack of practical design calculation methods for a long time, the lack of advanced construction techniques and construction equipment has affected its development. With the continuous development of the society, scientific and technological progress continues, sand pile construction technology and construction equipment have also been correspondingly developed. Sand piles were introduced into China in the 1950s and gradually promoted. Due to the long-term engineering practice, people gradually realized that it is difficult to solve the uneven settlement of weak foundations by only increasing the foundation sections, and the importance of reinforcing foundations is increasingly recognized. . There are many ways to strengthen the foundation, such as the method of filling cushions, dynamic compaction, deepening the foundation method, etc. Some of the excavated earthworks are large in quantity, high in cost, some are noisy, use is limited, and sand piles are used.