静压沉桩及锤击沉桩对饱和砂土中超孔隙水压力的影响

发布时间：2018-01-08 22:19

本文关键词：静压沉桩及锤击沉桩对饱和砂土中超孔隙水压力的影响　出处：《科学技术与工程》2015年35期 　论文类型：期刊论文

【摘要】：随着工程技术的发展,桩在建筑领域的应用愈加广泛;但是由于沉桩引起的土体中超孔隙水压力的变化却少有研究。首先采用室内模型试验的方法,对比研究了静压沉桩以及锤击沉桩对饱和砂土中超孔隙水压力的影响范围,在不同沉桩工法下砂土中超孔隙水压力产生的规律;同时,采用数值模拟的方法比较了不同沉桩速度以及不同的桩体表面粗糙度对饱和砂中超孔压的影响。通过以上研究,定量地对比研究了静压沉桩以及锤击沉桩对饱和砂土中超孔压的影响;同时研究了不同施工因素对超孔压的影响,对实际的施工有一定的指导意义。
[Abstract]:With the development of engineering technology, pile is more and more widely used in the field of construction. However, the change of excess pore water pressure in soil caused by pile-sinking is seldom studied. First, the indoor model test method is adopted. The influence range of static pressure pile and hammer driving pile on the excess pore water pressure in saturated sand is studied, and the law of excess pore water pressure in sand under different piling methods is studied. At the same time, the effects of different pile-sinking velocities and different surface roughness of piles on the super-pore pressure in saturated sand are compared by numerical simulation. The influence of static pressure piling and hammering pile on the superpore pressure in saturated sand is studied quantitatively. At the same time, the influence of different construction factors on superpore pressure is studied, which has certain guiding significance for actual construction.
【作者单位】：上海建科工程咨询有限公司;中国铁建国际集团有限公司;
【分类号】：TU753.3
【正文快照】： 随着工程技术的发展,桩在建筑领域的应用愈加广泛且普遍。从传统的作为基础的应用到现在的作为围护结构的应用无不体现了桩在建筑领域的应用活力。伴随着桩的不断的发展,产生了很多种沉桩的施工工法,包括锤击沉桩、钻孔灌注桩等传统的沉桩工法。当然随着人们对绿色施工要求的

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