钻孔灌注桩桩底灌浆分析  

Analysis of grouting at bottom of boring pile

作　　者：黄敏[1] 张克绪[2] 张尔齐[2] 

机构地区：[1]浙江大学建筑工程学院,浙江杭州310027 [2]哈尔滨工业大学建筑工程学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工业大学学报》2004年第11期1554-1557,共4页Journal of Harbin Institute of Technology

摘　　要：提出了一个确定钻孔灌注桩桩底灌浆浆体形状及尺寸的方法.该方法考虑桩端对灌浆渗流场的影响,假定浆水分界面是变球心的球面与圆锥台面组成的复合面,其球心随灌浆量的增加而下移.该假定较以往的灌浆假定有显著改善,与实际灌浆情况较为符合,可以较精确地根据灌浆量确定浆水分界面.并讨论了浆水分界面的控制参数对浆体尺寸的影响.最后给出一个灌浆算例说明本文方法.A method of determining shape and dimensions of grouting body formed at the bottom of boring pile is proposed. Based on influence of pile end under impermeable surface on seepage field, a simplified shape of interface of grout liquid and water is presented. The interface of grout liquid and water corresponding to a certain grouting volume can be determined approximately by the simplification. The parameters controlling shape of interface of grout liquid and water and its influence are discussed. Finally, a sample calculating interface of grout liquid and water is presented.

关 键 词：桩底灌浆 灌浆分析 渗流 浆水分界面 

分 类 号：TU473.1[建筑科学—结构工程]