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“SMW”法是在水泥土搅拌桩内插入工H型钢或其他种类的劲性材料,从而增加水泥土桩抗弯、抗剪能力,并具有挡水、挡土、工艺闭单、操作方便等特点的基坑围护施工方法。由于此类工法施工周期短、工程造价低、抗渗能力较强,在基坑围护中具备技术优势。本文通过某地铁区间明挖隧道基坑支护施工实践阐述其应用技术,并对其变形情况和经济性作出分析。
“SMW ” method is inserted in the cement mixing pile H beam or other types of strong material, thereby increasing the bending resistance of cement pile, shear resistance, and with water, retaining soil, the process is simple, the operation Convenient and other characteristics of the foundation pit construction method. Due to the short construction period, low engineering cost and strong impermeability, such construction methods have technical advantages in the foundation pit enclosure. This article expounds the application technology of foundation pit supporting construction of Ming tunneling in a metro area, and analyzes its deformation and economy.