CAJ | 학술논문

以实际工程为依托,采用有限元数值分析方法,对桩锚支护结构后侧土体局部地基处理后的土压力分布特征进行反演分析,研究地表荷载、航道开挖深度、软土地基置换率、地基处理宽度、深度对支护结构后侧土压力分布特征的影响。结果表明,通过对堤岸侧土体进行地基处理,不仅改变了原有地层土压力的分布特征,而且可有效减小地基处理范围内的土压力值。所得结论对软土堤岸工程的支护设计具有重要的参考价值。
이실제공정위의탁,채용유한원수치분석방법,대장묘지호결구후측토체국부지기처리후적토압력분포특정진행반연분석,연구지표하재、항도개알심도、연토지기치환솔、지기처리관도、심도대지호결구후측토압력분포특정적영향。결과표명,통과대제안측토체진행지기처리,불부개변료원유지층토압력적분포특정,이차가유효감소지기처리범위내적토압력치。소득결론대연토제안공정적지호설계구유중요적삼고개치。
CFG- pile composite foundation is composed of pile, soil and cushion. Gushlon technology is me Key part of composite foundation and has significant influence on the force and deformation of composite foundation. However, the role of the cushion is closely related with its thickness. Based on Terzaghi's theory of ultimate bearing capacity of foundation soil, the mechanism of action of CFG-pile composite foundation is discussed and the mathematical formulas of reasonable thickness of cushion, optimum space between piles and the pile-soil stress ratio are put forward, which have been testified by project cases and could be used as references for the in- itial design of cushion.