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| Application analysis on new utility drainage mode in tailings pond expansion project |
| Received:May 05, 2022 Revised:June 19, 2022 |
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| DOI： |
| KeyWord:tailings pond; capacity expansion; geofabriform dam; drainage; spillway |
| Author | Institution |
| LI Daoming |
中国瑞林工程技术股份有限公司 |
| WANG Mingwen |
中国黄金集团江西金山矿业有限公司 |
| WU Guogao |
中国瑞林工程技术股份有限公司 |
| LUO Minjie |
中国瑞林工程技术股份有限公司 |
| XIAO Wencan |
中国瑞林工程技术股份有限公司 |
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| Abstract: |
| A tailings pond adopts a geofabriform method for raising and capacity expansion, the existing flood control infrastructure can not meet flood discharge requirements after capacity expansion, and the existing flood discharge methods need to be improved. According to characteristics of the tailings pond expansion scheme, through comparison of the stepped and zoned flood discharge methods, and after analysis of the aspects of flood discharge safety, construction difficulty, construction period, operation management, and project cost, it is determined to adopt the stepped flood discharge of spillway with the reinforced concrete structure on new geofabriform dam in the tailings pond. To solve the problem that the spillway on a geofabriform dam may crack due to uneven settlement during flood discharge, the spillway is designed as a practical new structure with multiple Z-shaped plates freely overlapped, which can well adapt to the settlement deformation of the geofabriform dam. The utility model achievements provide a reference for flood discharge design of similar projects. |
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