摘要
海上风机基础和测风塔基础的可打入性分析是钢管桩设计的重要内容。在实际打桩过程中,为避免钢管桩无法下沉到设计土层标高或桩已达到设计标高,但桩的贯入度偏大等情况,需在施工前分析桩基的可打入性。以某海上风电场测风塔为例,运用GRLWEAP打桩分析软件,分析了钢管桩在连续打桩与后续打桩及部分土塞和不形成土塞工况下的可打入性,并与打桩实测记录进行对比,优化了打桩分析参数与土壤力学参数,为后续海上风机支撑结构桩基的可打入性分析提供了参考。
Drivability analysis of offshore wind turbine and met mast pile foundation is an important research topic of steel tubular pile design. In actual pile driving process, it is necessary to analyze the drivability of steel pile before pile foundation construction in order to avoid the possible cases that the pile cannot be driven to the design level or the level has been reached but the final penetration is too large. In this paper, the pile driving analysis of met mast of offshore wind farm had been carried out based on GRLWEAP software. Several cases including continual piling and partial plug or not plug were analyzed. By comparing with the actual piling recordings, parameters in driving analysis and soil mechanical pararaeters are optimized, which are used as a reference to analyze the pile drivability of follow-up offshore wind turbine foundation.
出处
《水电能源科学》
北大核心
2014年第3期203-206,共4页
Water Resources and Power
