滞后压浆技术在小长径比钻孔灌注桩中的应用

本文通过滞后压浆技术在宜昌某化肥厂改扩建工程中应用的工程实例介绍 ,探讨了滞后压浆技术提高小长径比钻孔桩单桩竖向承载力的原理及确保压浆效果的措施 ,指出小长径比钻孔灌注桩采用滞后压浆技术同样可以提高单桩竖向承载力

Delay Grouting Using in Small Length-dianeter Ratio Bored Piles

Through an engineering example,the bearing capacity of vertical,single small length diameter ratio bored pile increased by the delay grouting and the guarantce of grounting effort are discussed.It points out that delay grouting can be used to increase the bearing capacity of single vertical pile.