the national chemical mine design and technology center held a meeting from may 6-7 to review the chemical mining area overall planning content and depth standards in hebei’s zhuozhou city. the standards passed expert review
experts concluded that the standards accord with the latest laws, regulations and standards issued by the government as well as with practical experiences in chemical mine design and production. the overall structure is in line with the engineering construction standard compilation standard. major technical content and requirements are practical and forward-looking, and can meet chemical mine area overall planning document preparation requirements.
the standards were arranged by the center and mainly edited by the north china planning and design institute. the lehigh and changsha institutes also participated in the editing work.