CRCHI Showcases Its Comprehensive Solution of Underground Engineering Equipment at bauma 2022

28 October 2022

The 33rd Edition of the World's Leading Trade Fair for Construction Machinery, Building Material Machines, Mining Machines, Construction Vehicles and Construction Equipment (bauma 2022) was unveiled on October 24th, 2022 in Munich. China Railway Construction Heavy Industry Corporation Limited (CRCHI) exhibits its comprehensive solutions and equipment product portfolio which covers the whole industry chain of tunneling construction.

CRCHI also delivers new experiences of the comprehensive solution of underground engineering equipment through AR, VR, L-shaped screen and other digital ways. The exhibited products cover the categories of full-face tunnel boring machine, drilling and blasting tunneling equipment, mining equipment and so on. Advanced technologies and products such as the super-large-diameter slurry TBM "Jinghua", the complete set of intelligent equipment for the whole process of drilling and blasting construction, and the bolt miner were exhibited.

To make better exhibition experience for the audiences, CRCHI developed a set of VR virtual experience system and customized AR glasses for its TBM products, which delivered live experience to the audiences so that they can have a zero-distance feeling of application scenarios of TBM right from factory assembly, testing, production management, quality inspection, to the after-sales service on site.

As the key item of this exhibition, the full-face tunnel boring machine includes 9 series of more than 170 types, covering the horizontal, inclined and vertical directions, with a diameter of 0.5-23 meters.

The maximum excavation diameter of super-large diameter slurry TBM "Jinghua" is 16.07 meters, which is China's first super-large diameter slurry TBM of its class. It has been applied in Beijing East Sixth Ring Road in Reconstruction Project and set the tunneling record of 542 meters in a single month. At present, 4,772 meters have been successfully excavated by “Jinghua”, which assisted the first section of tunnel to be completed. The "Shenjiang No.1" TBM of China's deepest undersea tunnel (with a maximum burial depth of 106 meters) has successfully challenged the ultra-high water pressure, and overcome the construction difficulties of the super-large diameter TBM, such as launching with shallow covering soil and advance through soft-hard double layer strata. Manufactured by CRCHI, the largest diameter TBM (Φ12.19 meters) of India for the construction of the Mumbai coastal road tunnel has excavated 456 meters in a single month, which set a new record for the construction of large-diameter tunnel in hard rock formation.

The drilling and blasting tunneling equipment of CRCHI includes a variety of products for the whole construction process, such as probing, excavation, spoil transportation, primary support, secondary lining, auxiliary works as well as inspection and maintenance, which are widely used in railway, highway, water conservancy, municipal, subway and other construction fields.

With dozens of international technology advanced products, CRCHI’s rail track system products are exported to more than 30 countries and regions in the world, and more than half of the turnout used on the China-Laos Railway main line were made by CRCHI. The new rail transit equipment has been successfully applied to Qingyuan Maglev tourism special line, Fenghuang Maglev Sightseeing Express line, Changsha Maglev East Extension Line and other projects.

CRCHI is committed to providing global customers with comprehensive and customized solutions to make tunnel construction smarter, safer, more efficient and more environmentally friendly, and continue to contribute to global infrastructure construction.