【摘要】 采用轴对称弹性体系有限元和人工边界的耦合模型对打桩引起的近场波动问题进行数值模拟 ,并编制了相应程序。与某打桩场地实测数据进行比较 ,验证了本模型的可靠性 ,并参考荷兰振动规范分析了打桩振动对建筑物的影响以及隔振沟的位置、深度、宽度和材料强度对隔振效果的影响。更多还原

【Abstract】 The axissymmetric finite element of elastic system and artificial boundary conditions are applied to simulate the nearby vibration caused by pile driving. The reliability of this model is verified by field test in a pile driving project. Referring to the vibration specification of Netherlands, the vibration of close-by buildings and its effect are analyzed. At last, the influence of isolation trench’s position, depth, width and material strength on the isolation effect are investigated.更多还原