en.Wedoany.com Reported - The 18-meter-level caisson-type shaft boring machine "Anlan Hao," independently developed and manufactured by CRCHI (China Railway Construction Heavy Industry Corporation Limited), was officially launched at the South Section Project of the Raw Water Western Ring Line in Shanghai, China. This marks the project's full entry into the main tunneling construction phase. This caisson-type shaft boring machine is tasked with the tunneling construction of the S15# shaft. The Raw Water Western Ring Line Project is a key initiative in Shanghai's efforts to optimize and improve the overall layout of the raw water system for "interconnection, complementarity, and mutual support."
The geological conditions around the project site are complex, featuring uneven soft and hard strata, and construction must avoid underground pipelines and existing structures/buildings, presenting significant technical challenges. To address these difficulties, the CRCHI project team collaborated with Shanghai Mechanical Construction Group Co., Ltd. to carry out specialized optimization and upgrades on the caisson-type shaft boring machine "Anlan Hao." The equipment is configured with a high-flow flushing pump and water-cooled drive motors. Its back-up system employs a modular design, and the support arms feature a segmented structure, enabling it to meet the tunneling requirements for shafts with diameters ranging from 13 to 18 meters. This caisson-type shaft boring machine is also equipped with a segment offset measurement system, enhancing its geological adaptability and construction safety.
During the equipment's arrival, assembly, and commissioning phases, the CRCHI on-site service team worked in coordination with the project construction party to develop a detailed operational plan, successfully completing the launch assembly and commissioning tasks, thereby ensuring the smooth launch of the caisson-type shaft boring machine "Anlan Hao." The application of this equipment promotes the upgrading and development of shaft construction towards greater precision, automation, and intelligence.
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