The first TBM metro project was launched to work on the Grand Paris Express in Champigny-sur-Marne. The 10 m diameter TBM had been lowered 20 m below ground. It will excavate a 2.2 km section of the 33km-long line 15 south, which will connect Pont-de-Sèvres to Noisy-Champs by 2024. Eventually 10 TBMs will work simultaneously […]
A 6.65m diameter Robbins EPBM broke through at Chennai Metro, making this the third bored project tunnel in India. The EPB was refurbished, the inner seal greasing system was changed from auto to manual mode and the foam nozzle system was modified. These changes optimized the machine for excavation in the highly variable mixed face […]
Two breakthroughs took place in December 2017 on Egypt, for the new Ismailia road tunnel project. The total driven length of the two twin tunnels is around 15 km. Herrenknecht Mix shields with a cutting diameter of 13.02m tackled the sands and gravels encountered while traversing the old and new Suez Canals. The machines bored […]
Two 4.74 m, diameter hard rock double shields will be used for Mae Tang-Mae Ngad water diversion project in Thailand which will work on complicated and multiplex geology ranges, such as granite, quartzite, sandstone, mudstone, clay stone, and highly fractured and weathered rock masses (with a UCS range of 8MPa to 220MPa). The TBMs will […]
According to ISNA, Majid Farahani said on the sidelines of a visit to the subway Line 6, one of the longest line of Tehran subway is line 6 that consist of 32 kilometers tunnel and 27 stations. He stated that this subway line is from the shrine of Abdul Azim Hasani to Sulaghan, said: According […]
Positive view of the fifth council of Isfahan to complete the subway; Fath-o-lah Moien, The head of Islamic council of Isfahan, referring to the importance of completing the second line of Isfahan subway, said: Fortunately, the main shaft of the second line has been created and its guardian structure has been constructed. In fact, the […]