高含水量和高粘性软土水泥土搅拌桩工艺简析

Analysis of Construction Technologies of Cement Mixing Pile Applying to Soft Soil with High Viscosity and Water Content

本文依托日照港某散货堆场工程,在吹填港池疏浚土而形成的高含水量和高粘性淤泥及粘土中施工水泥土搅拌桩,采用普通水泥土搅拌桩施工,遇到了取芯率不合格的问题。本文探讨通过几种不同的水泥土搅拌桩施工工艺进行试桩,再根据试桩结果,分析不同施工工艺的优缺点和对不同地质的适应性,优选出最适合本工程场地地质的施工工艺,解决了前期普通水泥土搅拌桩取芯率不合格的问题。

In a bulk cargo yard project in Rizhao Port,the cement mixing pile was used for the muddy clay with high viscosity and water content,which was produced during the harbor basin dredging process.The application of common cement mixing pile led to unqualified coring rate.Thus several technologies of cement mixing pile were adopted firstly for pile testing,and then the test pile results were followed to analyze the merits and faults of the above mentioned construction technologies and the adaptability to different geologies,finally the most suitable one was selected and served as a solution to the problem of low coring rate in early stage.