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建设部重点推广项目—“预应力高强混凝土管桩的生产及应用开发”由苏州混凝土水泥制品研究院完成,荣获1998年度建材行业部级科技进步二等奖、1999年度国家级科技进步三等奖。PHC管桩广泛应用于工业与民用建筑、港口码头、水利、电力、公路、桥梁等领域。PHC管桩具有下列特点:1.混凝土强度高(大于C80等级),耐锤击性能好;2.单桩承载力大,单位承载力的价格便宜;3.材料用量少,自重轻(混凝土用量为方桩的70%,钢筋用量为方桩的30%~50%);4.桩身结构定型化、标准化、设计选用范围广,布桩容易;5.适应多种沉桩工艺,沉桩过程中用开口桩尖时,挤土量小,可贯入性好;
Ministry of Construction focus on the promotion of the project - “prestressed high-strength concrete pipe pile production and application development ” completed by the Suzhou Concrete Cement Research Institute, won the 1998 building materials industry ministerial-level scientific and technological progress second prize, 1999 annual national scientific and technological progress three Award. PHC pipe piles are widely used in industrial and civil buildings, port terminals, water conservancy, electricity, roads, bridges and other fields. PHC pipe pile has the following characteristics: 1. Concrete strength (greater than C80 grade), good resistance to hammering performance; 2. Single pile bearing capacity, the unit bearing capacity of the cheap; 3. Less material, light weight (concrete The amount of square pile 70%, the amount of steel for the square pile 30% ~ 50%); 4 pile body structure stereotypes, standardization, design a wide range of selection, easy piling; 5 adapt to a variety of pile sinking process, sink In the pile process, when the open pile tip is used, the amount of soil squeezing is small and the penetration is good.