TU753.3
桩端后压浆应在钻孔灌注桩成桩后3~7天进行。压浆量是影响后压浆质量和提高单桩承载力的关键因素。通过桩端后压浆,钻孔灌注桩单桩承载力特征值至少提高20%,可节约工程造价30%。
陈文娟.钻孔灌注桩桩端后压浆在焦作华融国际大厦的应用[J].钻探工程,2007,34(8):59-60.CHEN Wen-juan. Application of Cast-in-place Pile with Post-grouting at Base in Huarong International Building in Jiaozuo City[J]. Drilling Engineering, 2007,34(8):59-60.