时效性对单桩极限承载力的影响分析

ANALYSING THE ULTIMATE BEARING CAPACITY OF SINGLE PILE FOR LIMITATION OF TIME

目前 ,盐城地区正广泛采用打入式预制桩和泥浆护壁成孔灌注桩 ,本文将从这两种桩的成桩工艺 ,结合地基条件 ,对盐城地区饱和软粘土层中这两种桩成桩后休止时间对单桩极限承载力的影响规律进行了分析研究 ,并对载荷试验的间歇时间的确定问题做一些有益的探讨。

At present,driven precast piles and piles of concrete cast in place with mud protecting holes'walls are extensively used in Yancheng area.From pole's technology and conditions of soil,this paper will study influences of the cease time when two types of piles have been in place,on the ultimate bearing capacity of single pile for the saturated soft clay of Yancheng area.Moreover,how to determine the intermittent time of load test is also discussed. \[