钉形水泥土双向搅拌桩处理软土路基的设计与施工技术探讨

介绍钉形水泥土双向搅拌桩用于软土路基处理的设计、计算、施工工艺及检查标准,并将其与传统搅拌桩进行对比,认为前者克服了水泥搅拌桩成桩质量不易控制的缺点,且单桩承载力、处理长度均高于水泥搅拌桩,桩距要大于水泥搅拌桩,经济性要优于水泥搅拌桩,且随着处理深度的增加,其优势愈加明显。

Design and Construction Technique of Nail-Shaped Cement-Soil Bidirectional Mixing Pile in Treating Soft Foundation

The paper introduces the design calculation,construction technique and examining standard of the application of nail-shaped cement-soil bidirectional mixing pile in soft foundation treatment.By comparing it with traditional mixing pile,it is believed that the former hurdles the disadvantage of cement mixing pile that the quality of forming pile is difficult to control,the former′s bearing capacity and treating length of single pile is higher than cement mixing pile,the distance between nail-shaped cement-soil bidirectional mixing piles are longer than cement mixing piles,and the former′s economical efficiency is better than the latter.Along with the increase of treating depth,the former′s superiority is more and more obvious.