On 15 April 2017, the upcast ventilation shaft and service shaft on -620m were successfully connected in Sanxin Project with total length of 493m. On 21 April 2017, the haulage ways on -620m were connected with total length of 282m.
Many difficulties were faced during construction such as low blasting efficiency, Project Manager Mr. Jianghua Tong went to the faces for several times and analyzed reasons, identified the problems and encouraged the team to address those challenges.
After several rounds of measurement the connection was completed successfully. The achievements of two accurate connection works in April were highly recognized by the client, meanwhile representing the technical strength and competence of JCHX, laying a solid foundation for Sanxin Project for completing its annual target.
