发布时间:2025-02-03 01:57:18
泥浆护壁钻孔灌注桩行进二次清孔是在钢筋笼、导管沉放结束后进行的,主要是为了清除下钢筋笼时刮、碰下去的泥快,同时也调整泥浆比重。砼灌注前沉渣厚度为端承桩≤50mm,摩擦桩≤100mm、抗拔桩≤150mm。
我想在巨星这种网游上唱唱歌,请达人推荐一些能让声音好听的耳麦
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