三轴水泥搅拌桩在淤泥质土中的施工质量控制三轴水泥搅拌桩在淤泥质土中的施工质量控制 摘要:在软土地层的深基坑支护工程,往往面临着要确保安全、方便施工、及施工质量等诸多因素。因此结合工程实例,采纳钻孔灌注桩加三轴水泥搅拌桩止水的围护方式,体现了淤泥质土层中三轴水泥搅拌桩的施工过程中质量控制和质量检测,具体内容包括该项工程的地质条件,施工工序,质量控制中的施工准备、施工过程等,并对施工过程中常见问题提出了具体的处理意见,叙述了质量检验的结果。 关键词:三轴水泥搅拌桩;质量控制 Abstract: in soft soil deep foundation pit engineering, often face to ensure safe, convenient construction, and construction quality and other factors. Therefore, in combination with the project example, method of bored piles with three axis of cement mixing pile water retaining, reflects the quality control and construction process of silt soil in three axis of cement mixing pile in the detection, the concrete content includes geological conditions, the project construction process, construction preparation, quality control in the construction process the views of the treatment, and put forward the common problems in the construction process, the quality inspection resul Keyword: soil-cement pile mixed by three shafts; quality control 1 工程概况 某工程地下室基坑轮廓线面积为 23458.4m2,周长为 634m。场地±0.00=5.70m 场地自然地坪标高为-0.3m,主要由 2 幢 13 层高层、2 幢 11-12 层高层及相关3 层裙楼、1 幢 2-4 层 4S 店组成,场地大部分地段设地下 2 层(埋深约10.30m),4S 店范围内设地下 1 层(埋深约 6.40m),基础形式拟为桩基础。基坑西侧和南侧坑外为道路,路边下分布有通信电缆、电力管线、自来水管、燃气管、雨水管、污水管;基坑北侧为现场临时办公及宿舍区;基坑东侧为相邻施工施工场地。 基坑围护结构主要采纳钻孔灌注桩结合钢筋砼支撑支护结构,以三轴水泥搅拌桩作为止水帷幕的形式(见剖面图一)。三轴水泥搅拌桩采纳?650@450,搅拌桩采纳标准连续方式施工,搭接形式为全断面套打,桩的搭接长度为200mm...