With the rapid development of cities in my country, the subway has become one of the best means of transportation to alleviate urban road congestion, and subway projects have also become an important part of urban construction. The subway construction is mainly tunnel construction. During construction, not only attention should be paid to the support strength of the tunnel, but also the safety of the buildings on the ground. Therefore, subway tunnel construction has become the focus and difficulty of subway engineering. How to ensure the safe and effective construction of subway tunnels has become an important factor related to the overall quality of subway projects.

In mid-2020, we received an invitation from the construction team of Metro Line 4 in a city in the central region, in order to solve the problems of serious loss of picks and low safety performance during tunnel construction. As a leading manufacturer and R&D enterprise of tunnel teeth in China, we have always been committed to the innovation of tunnel teeth and maintained close cooperation with the front-line construction team to ensure the practicability and cutting-edge of our products.

It should be pointed out here that the tunnel project itself has certain difficulties, and due to the influence of complex geological conditions, it is difficult to effectively control the construction quality and construction safety. Large fault zones, hard rocks, etc. are several common complex geological problems. In order to ensure the quality and safety of construction and improve the efficiency and speed of construction, it is recommended to use our tunnel teeth products with higher quality, stronger hardness and better wear resistance.