On December 15, Indonesia’s Yawan High-Speed Railway Tunnel No. 1 was successfully completed, marking another important progress in the construction of Yawan High-Speed Railway.
Indonesia’s Minister of Oceanic Co-ordinating Affairs Luhut, Chinese Ambassador to Indonesia Xiao Qian, relevant departments of the Indonesian government and heads of Yawan High-Speed Railway participating enterprises attended the tunnel opening ceremony in Indonesia.
The Yawan High-Speed Railway Tunnel No. 1 is about 2.5 kilometers away from the starting station of the high-speed railway, Halim Station, with a total length of 1,885 meters and a maximum buried depth of 34 meters.
The tunnel is designed with a single hole and two lines. It runs through light rail, highways and densely populated buildings under construction, and passes through two mosques on the side.
Groundwater and surface water are very rich, the construction conditions are complex, and the engineering is difficult. Since the construction began in June 2018, the Chinese construction consortium led by China Railway International Co., Ltd., a subsidiary of the State Railway Group
has strictly implemented the design requirements, innovated the process, optimized the construction organization, strengthened safety and quality control, ensuring the smooth progress of tunnel construction, strictly controlled settlement within the standard, and realized the whole process.
“No leakage, no dripping water”. Especially in view of the geological conditions of the tunnel, China Electric Power Construction accurately adopts the construction method of “shield + open excavation” and uses the super-large diameter shield machine independently developed by China. The excavation diameter reaches 13.23 meters, the highest in Southeast Asia.