钻孔灌注桩半湿孔作业的成孔可行性研究

Study on the Feasibility of Borehole Completion in Semi-Wet Hole Operation of Cast-in-Place Bored Pile

半湿孔作业即是在成孔过程中根据地层情况先进行干孔作业,挖至一定深度后注入泥浆进行湿孔作业,干湿交替,最大程度上保证施工进度,减少泥浆带来的污染。论文结合工程实例,对郑州西部钻孔灌注桩半湿孔作业的成孔可行性进行研究总结,以供参考。

The semi-wet hole operation is carrying out the dry hole operation first, to a certain depth, then using wet hole method in the hole completion process, to ensure the construction progress to the maximum extent, and reduce the pollution from the slurry. This paper combing the project example, analyzes the feasibility of the hole completion using semi-wet hole operation of the cast-in-place bored pile in west area of Zhengzhou, for reference.