鞍钢半连轧１７８０技改工程，是以ＳＰ定宽机、ＰＣ轧机等国际现代先进设备建成的工艺生产线，板坯库及空压站管廊是该工程的重要组成部分。由于地下障碍和承载力要求等原因，选用人工挖孔灌注桩基础。人工挖孔灌注桩基础共３１５根，直径１２００ｍｍ，长１７ｍ。大直径... Angang semi-continuous rolling 1780 technological upgrading project is a technological production line built with international modern advanced equipment such as SP fixed width machine, PC mill, etc. Slab bank and air pressure station pipe gallery are important components of this project. Due to the underground obstacles and the bearing capacity requirements, the foundation of hand-dug cast-in-place piles was selected. There are a total of 315 manually drilled cast-in-place pile foundations with a diameter of 1200mm and a length of 17m. Large diameter...