钻孔灌注桩泥浆流变特性及水力参数研究分析  

Rheological Behavior and Hydraulic Parameters of Bored-pile Mud

作　　者：郑秀华[1] 张新明[1] 于进洋[1] 陈曦[2] 刘选朋[1] 刘翠娜[1] 梁楠[1] 

机构地区：[1]中国地质大学(北京),北京100083 [2]中航勘察设计研究院有限公司,北京100098

出　　处：《地质与勘探》2013年第5期958-963,共6页Geology and Exploration

摘　　要：钻孔灌注桩泥浆主要功能是稳定孔壁、悬浮和携带钻渣,其泥浆流变特性和水力参数对泥浆作用至关重要。本文首先实验研究了钻孔灌注桩泥浆的流变特性;然后推导出了钻孔灌注桩泥浆流变参数的计算公式;最后分析了钻孔灌注桩泥浆稳定孔壁、携带和悬浮钻渣的特性,对评价和优化钻孔灌注桩泥浆具有重要理论和实践意义。Mud is used to stabilize the borehole wall, and suspend and remove drilling residuals, of which the rheological behavior and hydraulic pa- rameters are very important. This work carried out an experimental study on the theological behavior of bored-pile mud. Formulas of theological parameters were deduced. Borebole-wall stabilization, drilling residual removal and suspension characters of bored-pile mud were analyzed. The results have theoreti- cal and practical significance for evaluating and optimizing bored-pile mud.

关 键 词：钻孔灌注桩 泥浆 流变性 水力参数 

分 类 号：TU473.14[建筑科学—结构工程]