工程深基坑加固中SMW工法桩的应用

SMW工法桩施工工艺主要是按照施工要求使用多轴型钻掘搅拌机挖掘到特定深度,并且在钻头处发射出水泥强化剂和地基土混合在一起,搅拌均匀,而各施工单元之间的施工以重叠搭接施工为主,接着在水泥土混凝土完全凝结之前插入应力补强材,例如钢板或者H型钢,等到水泥凝结之后,形成一道没有接缝、完整、连续、具有较高硬度与强度的地下墙体,同时还具备施工成本低、施工工期短、节能环保以及抗渗性能优越等优势。

The construction process of SMW construction method is mainly to use the multi-axis drilling and digging machine to excavate to a certain depth according to the construction requirements, and the cement fortifier and the foundation soil are mixed together at the drill bit, and the mixing is uniform, and the construction units are The construction is mainly based on overlapping lap joints, and then the stress-reinforcing materials, such as steel plates or H-beams, are inserted before the cement-soil concrete is not completely condensed, and after the cement is condensed, a seam without joints, complete, continuous, The underground wall with high hardness and strength has the advantages of low construction cost, short construction period, energy saving and environmental protection, and superior impermeability.