沉桩引起环境病害的预测和防治

FORECAST AND PREVENTION OF ENVIRONMENT DISEASSS CAUSED BY PILING

分析了打（压）桩引起的地振动与挤土的机理和规律，提出环境病害预测判据、方法和相应的防治措施．结合工程实例，提出了半解析有限元数值方法、简化实用计算方法，并与实测比较，可满足工程精度．可供设计及施工企业工程师参考。

The mechanism and the regularity of the earth vibration and the soil extrusion caused by pile driving (pressing) are analyzed, the forecast criterion, method and the corresponding preventive measures of the environment disease are also suggested. Combined with example project, semi-analytic FEM and the simplified practical calculation method are put forward. These methods are compared with the in-situ measurement, and they can satisfy the engineering precision. The conclusion of this paper can be consulted by engineers in construction enterprises and designer for reference.