THE APPLICATION OF CFG POUR PILE USED IN THE TALL BUILDING OF ZHENGXIN PLASA IN XI'AN

The engineering example about a tall building in Xi'an which has successfully used CFG pour piles is introduced in this paper. In the past years, foundation designs to tall buildings of similar engineering geological conditions usually used the pour piles of 800mm in diameter and 40m in length, which had the disadvantages,such as on great construction difficulty, long construction period and high cost price on foundation. While the CFG pour short piles Method is successfully used in the design of tall building over 25 floors' height. And the Method takes advantage of shorter period, less difficulty, less cost price and better quality on construction, which shows a good example for the similar engineering geological structures to fully use harding pebble bearing layers below ground.