海洋采油平台打桩工程中土塞效应研究  

STUDY OF INFLUENCE OF SOIL PLUG ON DRIVING PILES OF OFFSHORE OIL DRILLING PLATFORM

作　　者：闫澍旺[1] 董伟[1] 刘润[1] 尹汉军[2] 樊之夏[2] 

机构地区：[1]天津大学建筑工程学院,天津300072 [2]海洋石油工程股份有限公司,天津300451

出　　处：《岩石力学与工程学报》2009年第4期703-709,共7页Chinese Journal of Rock Mechanics and Engineering

基　　金：天津市科技创新专项基金资助项目(07FDZDSF02100)

摘　　要：根据太沙基深基础计算方法提出新的土塞效应判断方法,考虑边载效应,同时考虑打桩对周围土体的影响,引入动力效应系数,并将其应用于实际工程中,实测打桩记录结果与计算结果吻合较好,可用于桩的可打入性分析。Based on the Terzaghi＇s bearing capacity theory for deep foundations, a new approach for soil plug assessment is put forward, in which the surcharge effect and the influence of driving piles on surrounding soil have been considered; and the dynamic effect coefficients are included. The approach has been applied to practical engineering projects; and the calculated results agree with the observed data very well, indicating that the approach can give more reasonable results than the currently used method.

关 键 词：土力学 土塞 桩的可打入性 超大直径桩 太沙基理论 深基础 

分 类 号：TU43[建筑科学—岩土工程]