杨振琨¹，杜成伟²
    （1 中国水利水电科学研究院抗震中心，北京100044；2 西安理工大学水利水电学院，西安710048）

[摘要] 某供水工程因场地条件所限，工程施工时无法向外作业，为此必须在二期工程的管道两侧打钢板桩。为了分析打桩对一期管道可能产生的振动影响，根据现场监测的加速度的特点，应用数值方法得到打桩荷载的分布形式及幅值，然后建立了土与管道相互作用的动力接触模型，对其进行数值模拟分析，根据分析结果给出了一些初步的工程施工建议。
[关键词] 动力相互作用；动力接触；有限元；打桩振动

The influence of pile driving on buried pipelines
Yang Zhenkun¹, Du Chengwei²
(1 The Earthquake Eng. Research Center, China Ins. of Water Resources and Hydropower Research, Beijing 100044, China; 2 Ins. of Water Resource and Hydro-electric Engineering, Xi'an Uni. of Technology, Xi'an 710048, China)

Abstract: Due to site conditions, the construction of a water supply project cannot be excavated. It is necessary to drive steel pipe for both sides of the second phase. To analyze the potential vibration of the first phase pipe affected by pile driving, with the larger acceleration of the monitoring data among them on the spot, the form and peak ofload for the pile driving were given. Then the dynamic contact model of pipe-soil interaction was built, the problem by the numerical simulation was analyzed and some preliminary construction advice was presented.
Keywords: dynamic interaction; dynanuc contact; FEA; driving pile vibratio