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1.地下建筑桩墙合一施工技术在深基础外墙部位设置混凝土灌注桩,施工时起挡土作用,以后承受上部荷载及侧压力,桩墙结合成一体。可减少土方量和填土,节省钢筋混凝土用量,加快施工进度,降低工程造价。 2.深基础用锚杆支护技术在深基坑内用机械钻孔打入土中,灌入预应力钢筋混凝土的锚杆与土壤生根锚固,起深基础支护作用。可节省施工用地,减少挖土量,现场施工文明,社会效益与经济效益显著。 3.大直径机施桩利用长、短螺旋的钻机,施工大直径和扩孔桩,
1. The construction technology of the underground building piles and walls in one place The concrete cast-in-place piles are placed on the outer walls of the deep foundations, and they will act as a retaining block during construction. Later, they will bear the upper and side pressures, and the piles and walls will be integrated into one. It can reduce the amount of earthwork and fill the earth, save the amount of reinforced concrete, speed up the construction progress, and reduce the project cost. 2. The deep foundation is bolted into the soil by mechanical drilling in the deep foundation pit with the bolt support technology, and is poured into the prestressed reinforced concrete anchor rods and the soil root anchoring to support the deep foundation support. The land for construction can be saved, the amount of excavation can be reduced, the civilized construction on site, and the social and economic benefits can be significant. 3. Large-diameter machines are used for drilling long and short spiral rigs to construct large-diameter and reaming piles.