塑料排水板在天津港工程建设中的应用

通过对天津港若干采用真空预压加固的工程进行统计 ,对塑料排水板间距与加固时间、工程造价之间的关系进行了分析 ,总结出以上三者之间的规律 ;对真空预压加固机理进行了阐述 ,并根据有关实测资料 ,指出影响加固深度的主要因素是井阻损失的大小 ,实际工程表明 ,真空预压的有效加固深度可达 30m以上。

Application of Prefabricated Drains in Construction of Tianjin Port

The relationship between the spacing of prefabricated drains and the time for consolidation and construction cost is analyzed on the basis of the statistics of some works implemented and completed in Tianjin Port,in which the vacuum preloading technique has been used to improve the soft soils.Then,the law of relationship between the three aspects is summarized;the mechanism of vacuum preloading to improve soft soils is also expounded and it is pointed out that the major factor affecting the improved depth is the magnitude of the loss of well resistance.The completed works have shown that the effectively improved depth by vacuum preloading may be more than 30 m.