论文部分内容阅读
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。
With the development of engineering technology, the pile is widely used in the construction field. However, the change of excess pore water pressure caused by pile driving is rarely studied. First of all, the influence of excess pressure of over-pore water pressure in saturated sands and the law of excess pore water pressure in sand under different methods of pile driving are comparatively studied by means of indoor model test. Meanwhile, The influence of different pile driving speed and different pile surface roughness on the super pore pressure in saturated sand was compared by numerical simulation method. Through the above studies, the effects of static pressure pile settlement and hammer pile settlement on the excess pore water pressure in saturated sand are comparatively studied quantitatively. Meanwhile, the influence of different construction factors on the pore water pressure is studied, which is of guiding significance to practical construction .