Guangxi Hongyi New Materials Co., Ltd. 300,000 tons/year polypropylene project is located in the Petrochemical Park of Qinzhou Port, Guangxi Province. Its geographical location is the west of Nangang Avenue and the north of North Ten Road. The project is mainly divided into two areas, the comprehensive building and the central control room, with a total of 244 piles of 600mm pile diameter, the project started on April 21, 2021 and was completed on May 1, 2021, lasting 11 days.
The project has the characteristics of short construction period, narrow and concentrated working face, large rock entry depth and so on. According to the characteristics of the project and combined with the construction experience of similar projects of our company, we adopted two high-torque drilling rigs of 235 or above and equipped with various drilling tools, and all the construction tasks were completed on schedule according to the requirements of the owner, which was well received by the owner.
The final test results of the project are as follows:
1.Six piles were tested in static load test for vertical compressive bearing capacity, all of which passed and met the contract and design requirements.
2.Six piles were tested in static load test for horizontal bearing capacity, all of which passed and met the contract and design requirements.
3.89 piles were detected by low strain: 88 of them were Class I piles and 1 Class II pile; Class I piles accounted for 98.9% of the total number of piles and Class II piles accounted for 1.1% of the total number of piles, meeting the contract and design requirements.
4. 10 piles were tested by high strain, and the vertical bearing capacity of single piles all meet the design requirements.
By adopting reasonable construction techniques, careful organization and strict management, the construction task of this project was completed safely, with high quality and successfully, which not only won the trust of the owner, but also laid a good foundation for the subsequent deepening of cooperation.
