The framework of the degassing silo for the 300,000 tons/year high-pressure low-density polyethylene plant in Phase II of the Tarim project has been successfully completed

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On May 5, the concrete framework of the degassing silo for the 300,000-ton-per-year high-pressure low-density polyethylene (LDPE) unit in the Tarim 1.2 million tons per year Phase II ethylene project at Dushanbe Petrochemical, which is being constructed by a consortium led by the company and Daqing Petrochemical Engineering Co., Ltd., was successfully completed. This marks a significant milestone in the civil construction phase of this project, laying a solid foundation for subsequent equipment installation, process piping work, and the achievement of the project’s overall completion goals. It is reported that the concrete framework of this degassing silo is massive and built to strict standards; it is 48 meters long, 19.2 meters wide, and 21.7 meters high, with a total concrete pouring volume of 5,317 cubic meters. The project is located in an area with an earthquake resistance intensity of 8 degrees, which results in significantly higher construction challenges and design requirements compared to regular projects: the foundation type has been changed from independent foundations to monolithic raft foundations, thereby enhancing the structural stability ； The concrete frame has been expanded from three floors to five, enhancing its overall load-bearing capacity ； The main reinforcement for the frame columns is made of HRB500E bars in the form of bundled bars; these bars have high strength and require large quantities, which imposes strict demands on construction precision. This concrete frame full-shoring system constitutes a sub-project of considerable scale and high risk. Professional engineers from the Tarim LDPE project team of the Fourth Branch Company carefully prepared a specialized construction plan; 5 industry experts were invited to review this plan. Once it was approved following this review process, the construction work was officially commenced. At the construction site, disc-type steel pipe scaffolds were used; the total weight of these scaffolds was approximately 200 tons. Throughout the installation process, the standards set by experts were strictly followed, and the fundamental principles of safe production were upheld to ensure that the construction progressed in a systematic and orderly manner.