昆明市水泥构件厂为提高桩顶混凝土的延性和抗冲击性能,在昆明市工人文化宫新建工程工地进行了钢纤维混凝土预制桩头现场试验。试验桩长7米,断面250×250毫米,桩顶40厘米部份采用钢纤维混凝土,标号300号。桩顶钢纤维混凝土采用625号普通硅酸盐水泥,5～10毫米碎石,平均粒径为0.27毫米的细砂,用工业废钢丝作为钢纤维,按 Kunming Cement Component Factory In order to improve the ductility and impact resistance of pile-top concrete, a field test of prefabricated steel fiber reinforced concrete pile head was carried out in the new construction site of Kunming Workers Culture Palace. Test pile length of 7 meters, section 250 × 250 mm, 40 cm of the top part of steel fiber reinforced concrete, No. 300. Pile top steel fiber reinforced concrete using ordinary Portland cement No. 625, 5 to 10 mm gravel, an average grain size of 0.27 mm of fine sand, with industrial scrap wire as steel fiber, press