粉喷桩在箱涵地基处理中的应用

Application of Dusted Pile in Box Culvert Foundation Treating

粉喷桩是深层搅拌法加固地基方法的一种形式,也叫加固土桩。它是利用水泥、石灰等材料作为固化剂的主剂,通过特制的搅拌机械就地将软土和固化剂(浆液状和粉体状)强制搅拌,利用固化剂和软土之间所产生的一系列物理化学反应,使软土硬结成具有整体性、水稳性和一定强度的优质地基。结合工程实例,就粉喷桩在小桥涵上的应用进行了分析。

The dusted pile is a form of reinforcing the foundation by mixing in deep layer, also called the cosolidated soil pile. Methods for pile driving are as below：to utilize cement and lime as the main curing agent, to use the purpose made mixer to mix compulsorily and on the spot the weak soil and curing agent （grout or powder - shaped） ,once more to apply a series of physical and chemical reactions emerging between curing agent and weak soil to make the latter harden to a premium foundation with integrality ,water stability and a cirtain strength. The paper analyzes application of dusted pile in small bridge culvert by engineering example.