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

Mining Science and Technology 2009年第6期19卷 750-755页

作者： LV Heng-lin ZHAO Cheng-ming SONG Lei MA Ying XU Chun-hua School of Architecture and Civil Engineering China University of Mining ＆ Technology Xuzhou Jiangsu 221116 China State Key Laboratory for Geomechanics and Deep Underground Engineering Xuzhou Jiangsu 221008 China Wuhan Design ＆ Research Institute of Sinocoal International Engineering Group Wuhan Hubei 430064 China

Concrete structures in main coal cleaning plants have been rebuilt and reinforced in the coal mines of the Shanghai Datun 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 special 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.

关键词： main coal cleaning plants concrete structure operating environment reliability detection and inspection damage anddeteriorating mechanisms curing technique

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