Last month, after 62 months of construction and broke through various difficulties, Xiamen Haicang Subsea Tunnel was officially opened to traffic. Haicang Tunnel is the third highway subsea tunnel in mainland China, with a length of more than 6 kilometers and a depth of up to 70meters under the seabed. The tunnel construction project has high technical content, large scale and complex construction environment. It is currently one of the most complex and difficult underground projects in China. We are proud of the application of our drilling rigs to the construction of the Haicang Tunnel, high efficiencent borehole drilling construction for geological exploration and cement grouting.
