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1 水泥土搅拌桩机的施工原理及施工工艺1.1 施工原理水泥土搅拌桩机主要是由地质回转钻机、泥浆泵、潜水泵、主搅拌罐、发电机组等组成,配合自动记录仪,在电机的带动下通过泥浆泵把拌合好的水泥浆输送到钻杆内,并随着钻头的转动与土充分混合而形成水泥土。它主要是以水泥作固化剂,通过桩机在地基深处就地将土体和固化剂强制拌和,利用固化剂使土体和水之间产生的一系列物理化学反应,使土体固结成具有良好的整体性、水稳定性、不透水性,并具有一定强度的水泥土防渗墙。水泥土搅拌桩机分为单头深层搅拌桩机和多头小直径搅拌桩机。单头深层搅拌桩机的钻头直径为450mm,桩与桩的搭接厚度为150mm,成墙厚度的理论值为335mm,钻杆长为
A cement soil mixing pile construction principle and construction process 1.1 Construction principle Cement soil mixing pile machine is mainly composed of geological rotary drilling rig, mud pump, submersible pump, main mixing tank, generator set and other components, with the automatic recorder, the motor Driven by the mud pump to mix the good slurry into the drill pipe, and with the rotation of the drill bit fully mixed with the soil to form cement soil. It is mainly used as a cement curing agent, through the pile driver in the ground deep in situ soil and curing agent forced mixing, the use of curing agent so that soil and water produced a series of physical and chemical reactions, the soil consolidation Into a good integrity, water stability, impermeability, and has a certain strength of cement soil cutoff wall. Cement soil mixing pile machine into a single deep mixing pile driver and a small diameter mixing pile machine. The drill diameter of the single-head deep mixing pile driver is 450mm, the overlapping thickness of the pile and the pile is 150mm, the theoretical value of the wall thickness is 335mm, the length of the drill pipe is