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一、关于地下连续墙混凝土的配合比地下墙混凝土一般都用导管法浇筑。与宽度相比长度较长的墙壁应尽可能整体地水平往上浇注。深度较深时,振捣棒或振动器等都不可能使用,混凝土的上部和两侧都有可能堆积或混入一部分膨润土液,因此必须重视导管混凝土时稠度,除了对水灰比和塌落度作规定外,在施工时还必须保持一定的稠度。导管混凝土的水灰比必须小于0.55,塌落度22厘米±2厘米。应该注意的是,已
1. Mixture Ratio of Concrete for Underground Diaphragm Walls Concrete for underground walls is generally cast using a pipe method. Walls that are longer in width than the width should be poured as far as the whole horizontally upwards. When the depth is deep, vibrating rods or vibrators cannot be used. A portion of the bentonite liquid may accumulate or mix on the upper part and both sides of the concrete. Therefore, it is necessary to pay attention to the consistency of the concrete for the conduit, except for the water-cement ratio and the slump. In addition to the regulations, a certain degree of consistency must be maintained during construction. Conduit concrete water-cement ratio must be less than 0.55, slump of 22 cm ± 2 cm. It should be noted that already