【摘要】 介绍了PTC管桩在高速公路深厚软土地基处理中的施工工艺和施工过程孔隙水压力的现场监测结果,分析了孔隙水压力的变化规律,讨论了沉桩过程对周围邻桩的影响,提出了消除超孔隙水压力的一些方法和措施,指出可利用超孔隙水压力消散的有利条件,达到软土地基二次固结的目的。更多还原

【Abstract】 The applicability of PTC pile com posite foundation is introduced in expressway profundity soft soil ground treatm e nt. The construction technology of PTC pile is also introduced, the spot monitor ing o f pore water pressure has been done in process of the PTC pile construction, the changing regularity of pore water pressure has been analysed, and the compa ction effect of the squashing PTC pile has also disscussed, some measures have b een put forward in order to eliminate the effect of pore water pressure.更多还原