Recently, the foundation pit inspection of the main tower of the Chengdu Greenland Center·Shufeng 468 super high-rise project (hereinafter referred to as 'Greenland 468'), the world's seventh and western China's tallest skyscraper landmark built by the Southwest Division of Greenland Group, successfully passed the acceptance of the Chengdu Quality Supervision Station, marking the official start of the main structure construction of the 'tallest building in western China'. It is said that by the end of 2019, this highly anticipated architectural landmark will be put into use.
    The project manager of 'Greenland 468' stated at a media briefing held today that it took only 22 months from the groundbreaking to the official start of the main structure construction of the 'Greenland 468' project, which is in a leading position among many super high-rise projects in China. Up to now, all construction of the project is progressing in an orderly manner as planned. On site, the foundation pit bottom cleaning and cushion sealing have been completed. The T1 main tower is scheduled to be topped out in October 2018, and by the end of 2019, this tall, handsome, and towering building will be put into use. At that time, this building, whose cross-section design is inspired by a diamond, will become a 468-carat 'diamond' dedicated by Greenland Group to Chengdu.
    According to reports, in the construction process, the underground works are the most time-consuming and labor-intensive. The foundation pit of this 468-meter super building is equivalent to the height of a 10-story building, and its width is equivalent to a standard football field. With a huge volume of 800,000 m? and a depth of more than 30 meters, the foundation pit construction of the project has the characteristics of large excavation depth, many support types, complex geological conditions, rich groundwater and extremely uneven distribution. Moreover, being located in an expansive soil area, there are very strict requirements for deformation control.
    In the design and construction plan, Greenland Center condenses global wisdom and takes the lead in adopting the circular ring support construction scheme in Chengdu. It adopts construction technologies such as large-diameter main reinforcement arc calculation and precise pre-bending, and GPS small-spacing continuous precise positioning, which solves the construction problems of expansive soil and realizes the protection of pile foundations at a distance of only 1.5 meters from Metro Line 2.
    Jin Jian, general manager of Chengdu Company of Southwest Division of Greenland Group, said in an interview with our website that the 'Greenland 468' project is technically complex, difficult to construct, and has a long construction period. Before the main construction of the project, Chengdu Company of Southwest Division of Greenland Group carried out a lot of preliminary work to fully promote the high-standard construction of the project.
    According to incomplete statistics, up to now, the project has carried out a large number of preliminary work including the national over-limit seismic review consultation meeting, the safety supervision expert demonstration meeting on deep foundation pit support scheme, the seismic over-limit review meeting for the main tower structure, the expanded preliminary design review meeting (100% depth), and the expert demonstration meeting on the pile foundation engineering of the main tower.
    As the 'tallest building in western China', the scarcity and uniqueness of 'Greenland 468' make Greenland Center full of confidence. Jin Jian also said that wherever Greenland Center is, the center of the city will be there. This modern landmark not only belongs to Greenland Group but also to Chengdu.