Foundation treatment of steelmaking and continuous casting project (including piling works) of Kunming Iron and Steel Co., Ltd. of Wuhan Iron and Steel (Group) Company relocation and transformation and upgrading project to promote supply-side structural reform and implement environmental protection is located in Kunming, Yunnan Province, invested by Kunming Iron and Steel Co., Ltd. of Wuhan Iron and Steel (Group) Company
In total, more than 1,600 bored piles were completed, including 6 trial piles with diameter of 600mm, over 500 bored piles with diameter of 600mm, over 800 bored piles with diameter of 800mm and over 100 bored piles with diameter of 1,000mm, the length of piles ranged from 9.0m to 30.3m. The stratum around the pile body was mainly composed of prime fill, clay and sandstone. During the construction of the piles, it is necessary to pass through the deepest backfill layer of about 10m, and it is very easy to collapse the hole during the construction of the piles in this stratum.
Foundation treatment of steelmaking and continuous casting project (including piling works) of Kunming Iron and Steel Co., Ltd. of Wuhan Iron and Steel (Group) Company relocation and transformation and upgrading project to promote supply-side structural reform and implement environmental protection started on September 09, 2020 and completed on June 16, 2021. After the third-party testing, all of the bored piles were qualified.