经计算、试验比较 ,认为“断桩”将敏感地影响到深层搅拌连续桩墙整体防渗能力 ,它的产生与桩机喷头喷浆不均、叶片搅拌不均、上下进尺不均有直接的关系 ,而采用“双排连打”或“多排连打”可以有效地提高防渗墙质量 According to calculation and test, it is considered that “broken pile” will affect the whole seepage prevention capacity of deep mixing continuous pile wall sensitively, and its production is uneven with the spray of pile driver, uneven mixing of blades, Relationship, and the use of “double row hit” or “multi-row even hit” can effectively improve the quality of cut-off wall