Damage and deterioration mechanism and curing technique of concrete structure in main coal cleaning

• 作 者: LV Heng-lin ZHAO Cheng-ming SO
• 机 构: School of Architecture and Civil Engineering,State Key Laboratory for Geomechanics and Deep Undergro
• 出 处: 矿业科学技术（英文版）
• 发表日期: 2004年期
• 关键词: main coal cleaning plants concrete structure operating environment reliability d

Concrete structures in main coal cleaning plants have been rebuilt and reinforced in the coal mines of the Shanghai Da-tun Energy Sources Co. Ltd., the first colliery of the Pingdingshan Coal Co. Ltd. and the Sanhejian mine of the Xuzhou Mining Group Co. Ltd. In these projects, the operating environment and reliability of concrete structures in the main plants of the three companies were investigated and the safety of the structures inspected. Qualitative and quantitative analyses were made on the spe-cial natural, technological and mechanical environments around the structures. On the basis of these analyses, we discuss the long-term, combined actions of the harsh natural (corrosive gases, liquids and solids) and mechanical environments on concrete structures and further investigated the damage and deteriorating mechanisms and curing techniques of concrete structures in the main coal cleaning plants. Our study can provide a theoretical basis for ensuring the reliability of concrete structures in main coal cleaning plants.