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用建筑垃圾夯扩超短异型桩与施工技术 该桩施工技术是在桩位上,将桩护筒压入承载土层中,往护筒内填充建筑垃圾,用重锤夯击填料,在护筒底部的土层中夯扩成阶梯型人造持力层,然后在护筒内放入钢筋笼,浇注混凝土,并拔出护筒,振捣成桩.它很好地解决了软土或填土地基无浅部持力层的难题,不仅可缩短桩长还可提高单桩承载能力(可达800～1600kN).它可用于人工填土地基、粘性土软弱地基、湿陷性黄土地基等,可达到既消纳建筑垃圾,又节约建材的目的.(河北工专新兴科技服务总公司)夯实水泥土桩复合地基成套技术 这是将水泥和土在桩孔外进行拌合,在桩孔内分层夯实成桩的复合地基技术.该地基的承载能力可达180～300kPa.适用于地下水以上的粉土、粘土、素填土、
Super-short profiled pile with construction waste and construction technology The construction technology of the pile is on the pile position, the pile protection tube is pressed into the bearing soil layer, the building waste is filled into the protection barrel, and the packing is tapped with a heavy hammer to protect the pile. The soil layer at the bottom of the drum is expanded into a ladder-type artificial holding layer. Then, a steel cage is placed in the casing, concrete is poured, and the casing is pulled out to vibrate the pile. It is a good solution to the soft soil or filling. There is no difficulty in shallow foundation bearing layer, not only shortening the pile length but also increasing the bearing capacity of the single pile (up to 800-1600kN). It can be used to artificially fill the foundation, soft clay foundation, collapsible loess foundation, etc. It can achieve the purpose of both absorbing construction waste and saving building materials. (Hebei Engineering Emerging Technology Service Corporation) tamping cement-soil pile composite foundation technology This is the cement and soil mixing outside the pile hole, in the pile hole Composite foundation technology with internal layering and compaction of piles. The bearing capacity of this foundation can reach 180～300kPa. It is suitable for silt, clay and plain filling above groundwater.