上海地区以密实砂土为持力层的预制桩桩基承载力参数取值及沉桩可能性分析  

The Parameter Value of Bearing Capacity of Prefabricated Pile Foundation with Dense Sand as the Bearing Layer and the Analysis of the Possibility of Pile Sinking in Shanghai Area

作　　者：栾兆富 LUAN Zhaofu(Shanghai Xindi Ocean Engineering Technology Co.,Ltd.,Shanghai 200062,China)

机构地区：[1]上海新地海洋工程技术有限公司,上海200062

出　　处：《城市勘测》2024年第1期190-194,共5页Urban Geotechnical Investigation & Surveying

摘　　要：结合工程实例对比分析上海勘察规范、上海静探规程中采用静力触探估算以密实砂土为持力层的预制桩桩基承载力参数,并结合静载荷试验结果进行验证,推荐了合理的桩基承载力参数。同时根据试桩沉桩成果进行沉桩可能性分析及施工建议,对工程勘察中合理提供桩基承载力参数及桩基持力层选择具有借鉴意义。This article compares and analyzes the bearing capacity parameters of prefabricated pile foundations with dense sand as the bearing layer estimated by static penetration testing in the Shanghai Survey Code and Shanghai Static Exploration Code based on engineering examples,and verifies them with the results of static load tests.Reasonable bearing capacity parameters of pile foundations are recommended.At the same time,based on the results of pile testing and sinking,the possibility of pile sinking is analyzed and construction suggestions are provided,which has reference significance for providing reasonable pile bearing capacity parameters and selecting pile bearing layers in engineering exploration.

关 键 词：静力触探法 预制桩 密实砂土 桩基承载力 沉桩可能 

分 类 号：TU473.12[建筑科学—结构工程]