Building a block to build a subway, Shenzhen's first full -assembly station Line 12 Shaopu Station was capped

On August 15th, with the successful prefabricated top board, the No. 12 Phase II project of Shenzhen Municipal Rail Transit Line 12, which was undertaken by China Electric Power, was capped, marking all the nationwide internal support systems under the assembly system of all subway stations in the nationwide support system all the subway stations under all internal support systems. The assembly was completed, and Shenzhen's first full -assembly subway station was successfully capped. In order to create a new generation of prefabricated subway stations with Shenzhen characteristics and lead the technical application of prefabricated stations, it has laid the foundation.

Single "Lego Blocks", a single block prefabricated component weighs 128.8 tons is the heaviest in the country

Shapu Station is one of the first seven -seat stations in Shenzhen Metro. The station is 235 meters long and the assembly section is 164 meters long. It consists of 762 prefabricated components. The overall assembly rate reaches 70%. For the first time, the top board of the station adopts a single -block structure, weighing 128.8 tons, which is the most weight of single -block components in the national subway assembly station. The outer frame structure consists of a prefabricated component with a width of 1.994 meters. It uses the "Lego Block" to combine the number of waterproof seams. For the first time, a full -breaking surface assembly scheme of the main structure of the outer frame and the internal support structure is proposed, and the internal structure of the station will also adopt prefabricated assembly.

According to the person in charge of Shenzhen Metro Group, prefabricated stations have the characteristics of green technology integration, BIM technology integration, intelligent integration, standardized integration, industrialized production, assembly construction, information management, and integrated hardcover. It is conducive to saving energy, reducing construction pollution, improving production efficiency and quality and safety, and meets the requirements of green development.

Double Academician control, 100 technologies to solve the five major problems

It is understood that as early as 2018, the Shenzhen Municipal Rail Office and Shenzhen Metro Group conducted research on prefabricated subway stations. The survey results show that anchor cable structure does not meet the construction of urban rail transit in Shenzhen's complex strata. To this end, for the first time, the Municipal Railway Office and the Municipal Metro Group proposed the internal support system prefabricated stations, and through in -depth research and analysis of the geological conditions and surrounding environment of all stations of the four -phase adjustment line of Shenzhen Rail Transit, 7 stations were selected. As Shenzhen's first batch of prefabricated pilot application stations.

In 2020, Academician Qian Qihu and Academician Chen Xiangsheng presided over the preliminary design and edit expert review meeting of the fourth phase adjustment project of Shenzhen urban rail transit. form.

According to the person in charge of China Power Construction site, during the construction of prefabricated stations, Shenzhen Metro Group and China Power Construction have selected technical backbone forces engaged in mechanical, lifting, prefabrication and other professional fields. Group. After a few hundred technical research seminars, it was determined to develop the "90 -ton+90 -ton smart dragon door hanging+multi -function auxiliary assembly trolley" as assembly and assembly equipment.

The five major problems of the research of mechanical characteristics of component standardization, selection of prefabricated structure forms and reasonable division of components, reasonable design of joint waterproof technology, the production and installation of components, and the mechanical characteristics of structure in the assembly process. At the same time, the quality standards for prefabrication and assembly of the Shenzhen Metro Pretending Station were initially formulated, and the unique disassembly and replacement of the Shenzhen characteristic prefabricated stations was successfully applied to the construction of the unique and replacement stations in Shenzhen, and it was successfully used in the construction of Shapu Station.

It is understood that at present, the three -seater and matching stations that are undertaken by China Electricity Construction are progressing smoothly. Except for Shapu Station, the 97th ring of prefabricated components of Metro Line 13 (North Extension) City Hospital Station 83 Ring; Metro Line 6 branch line (Phase II) Huaxia Station encirclement structure has been completed, and the main structure of the main structure of the large mileage is underway. According to the plan, the construction section construction will be completed in the second half of this year and early next year.

Shenzhen Evening News reporter Dong Yuhan

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