Core Viewpoint - The "Ring North Guangxi Project" is a significant water resource allocation initiative in Guangxi, utilizing advanced Tunnel Boring Machines (TBMs) to tackle challenging geological conditions and enhance construction efficiency [2][4][9]. Group 1: Project Overview - The project connects 12 rivers and 15 reservoirs, with a total water conveyance length of 491.10 kilometers, primarily sourcing from the Yujiang River [2]. - The project faces challenges such as small tunnel cross-sections, long excavation distances, hard geological layers (with uniaxial compressive strength reaching 186 MPa), poor ventilation, and high labor intensity [2]. Group 2: TBM Technology and Operation - Seven domestically produced TBMs are being deployed, with three already operational and the remaining four expected to commence by the end of the year [2][6]. - TBMs are considered the "king of engineering machinery" and are crucial for efficient excavation and green construction [4][7]. - The TBM operates using hydraulic drive to rotate a large cutter head, which breaks rock and transports debris through a closed belt system, enhancing safety by minimizing direct contact with the excavation face [4][9]. Group 3: Performance and Efficiency - The "Ring North Guangxi No. 1" TBM can advance over 500 meters per month, significantly outperforming traditional drilling and blasting methods [8]. - The "Ring North Guangxi No. 2" TBM has achieved a cumulative advance of 770 meters, with a maximum daily progress of 36 meters and a utilization rate of 35% [5]. - The introduction of TBMs has greatly improved safety and efficiency in the project, with a lifespan of approximately 10 to 15 kilometers, suitable for long-distance tunnel excavation [8][9]. Group 4: Future Prospects - The full deployment of all seven TBMs is expected to lead to significant advancements in the project, marking an important milestone in Guangxi's water resource development [9].