| Issue |
E3S Web Conf.
Volume 136, 2019
2019 International Conference on Building Energy Conservation, Thermal Safety and Environmental Pollution Control (ICBTE 2019)
|
|
|---|---|---|
| Article Number | 04051 | |
| Number of page(s) | 6 | |
| Section | Urban Public Safety | |
| DOI | https://doi.org/10.1051/e3sconf/201913604051 | |
| Published online | 10 December 2019 | |
Repair Technology for Joint Damage of Sealing Cover Plate of Concrete Faced Rockfill Dam
1 Heilongjiang Mudanjiang pumped storage co., LTD, Heilongjiang, 157000, China
2 China Institute of Water Resources and Hydropower Research, Beijing, 100038, China
* Corresponding author’s e-mail: sunzhh@iwhr.com
In view of damages that are common in anti-seepage coiled joints used in the water-sealing of the concrete faced rockfill dam junction surface, the construction method that uses SK hand scraping polyurea and tire base fabric to quickly repair the broken coiled joint is proposed. By polishing the surface of the commonly-used Ethylene-Propylene-Diene Monomer (EPDM) board coiled material and using a special BU primer, good adhesion can be ensured between the SK hand scraping polyurea and the EPDM board. The EPDM boards were joined by docked joints and lapped joints, the boards were coated with SK hand scraping polyurea and adhered with tire base fabric, and the tensile and peel tests are carried out. The results show that SK hand scraping polyurea and EPDM board is well bonded. The method using for the connection of EPDM board joints has the advantages of simple construction, high speed, good quality and good anti-seepage effect, and it has been successfully applied to repair of damages of concrete faced joints on Pushi River pumped storage power station in Liaoning and the Nazixia hydropower station in Qinghai.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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