论文部分内容阅读
1工程概况新建宁安城际铁路NASZ-4标扁担河特大桥全长13.59km,共有420个桥墩和2个桥台,所有桥墩及桥台均为桩基,每个桥墩台设置桩基数量分别为8根、10根、11根,共有桩基3884根,约95%的桩基为摩擦桩,桩基直径为1.0m和1.25m,桩长为30～60m不等。旋挖钻机成孔是最近几年发展起来的一种比较先进的新型成孔工艺,旋挖钻由于其钻机功率大,施工效率高
1 Project Overview The new Ning’an intercity railway NASZ-4 standard Bien Hoa He Bridge length of 13.59km, a total of 420 bridge piers and two abutments, all piers and abutments are the pile foundation, each bridge piers set the number of pile They are 8, 10 and 11 respectively, with a total of 3884 piles. About 95% of the piles are friction piles. Pile diameters are 1.0m and 1.25m, and pile lengths are 30-60m. Rotary drilling rig into a hole is developed in recent years, a more advanced new hole forming technology, rotary drilling due to its rig power, high construction efficiency