%0 Journal Article
%T ANALYTICAL SOLUTION FOR MODEL OF PILE HAMMER IMPACT<br>打桩锤击模型的解析算法
%A XIE Yong-jian
%A ZHU He-hua
%A WANG Huai-zhong
%A TAO Lu-bin
%A <br>谢永健
%A 朱合华
%A 王怀忠
%A 陶履彬
%J 岩石力学与工程学报
%D 2005
%I 
%X The drivability study of piling requires modeling of the hammer impact to calculate the input force wave at the pile head. This force wave can be computed numerically or by simple analytical solutions. Analytical solutions are presented for hammer impact considering a model which uses lumped mass for the ram and anvil,a spring and a dashpot for the anvil cushion,and another spring for the cap cushion on the top of a pile. The pile is modeled as a dashpot. The solutions account for the separation of the anvil mass from the pile cap cushion as well as the separation of the ram mass from the anvil cushion. The developed solutions are used to perform a parametric study to show the influence of the pile cushion and the mass ratio of pile cap to pile hammer on the maximum force transmitted to the pile head. The parameters of pile cap cushion are achieved by laboratory static test. Force-time responses derived from the analytical model are compared with field data,which indicate well consistent with each other.
%K soil mechanics
%K driving pile
%K analytical solutions
%K parametric study
%K static test<br>土力学
%K 打桩
%K 解析解
%K 参数研究
%K 室内静力试验
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=80AA97651E089C8E&yid=2DD7160C83D0ACED&vid=B91E8C6D6FE990DB&iid=CA4FD0336C81A37A&sid=73579BC9CFB2D787&eid=5BC9492E1D772407&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=5&reference_num=11