旋挖成孔灌注桩施工过程中充盈系数的控制

Control the filling coefficient of the construction process of rotary drilling bored piles

结合工程实例,从泥浆性能、旋挖操作要求、旋挖钻头尺寸、超灌高度控制等方面,分析了旋挖成孔灌注桩施工过程中影响充盈系数的因素,并提出了有效控制充盈系数的方法,从而降低旋挖成孔灌注桩的施工成本。

Combining with engineering examples,starting from aspects of slurry performance,rotary drilling requirements,rotary driller size,extra-bored height,the paper analyzes factors influencing filling coefficient in construction process of rotary drilling hole bored pile,and puts forward effective methods of controlling filling coefficient,so as to reduce construction cost of rotary drilling hole bored pile.