Study on Construction Technology of Cement Mixing Pile Foundation Treatment in Qiaoxiao Expressway
刘磊LIU Lei;李湘华LI Xiang-hua;毛智伟MAO Zhi-wei
（湖北省路桥集团有限公司,武汉430056)
( Hubei Provincial Road & Bridge Group Co., Lld.，Wuhan 430056,China )
摘要;水泥搅拌桩是软弱地基处理的一种有效形式,是一种将水泥作为固化剂的材料,利用搅拌桩机将水泥浆喷入土体并且充分搅拌均匀,使水泥与土体发生一系列反应,使软土固结,形成具有整体性、水稳定性和一定强度的水泥土桩,从而提高地基强度。文章结合研孝高速公路,从设计、试桩、施工至成桩质量检测等方面进行了论述,较详细介绍水泥搅拌桩在地基处理施工中应用状况及关键技术的控制,提高了水泥搅拌桩成桩质量,达到了技术研究效果。
Abstract:Cement mixing pile is an efective form of soft foundation treatment, which is a malerial that uses cement as a curing agent.The cement slury is sprayed into the soil using a mixing pile machine and thoroughly mixed evenly, causing a series of reactions betweenthe cement and the soil, consolidating the softsoil, forming a cement soil pile with integrity, walter stability, and a certain strength, therebyimproving the strength of the foundation. The article discusses the design, pile lesting.construction, and pile quality inspection of the(Qiaoxiao Expressway, and provides a detailed introduction to the application status and key technology control of cement mixing piles infoundation treatment construction.This improves the pile quality of cement mixing piles and achieves technical research results.
关键词:水泥搅拌桩;试桩;关键技术;复合地基承载力
Key words: cement mixing pile; test pile; key technologies; bearing capacity of composite foundation
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