Full
Outline
The CSGR dam of Shaping I-stage is the first application of cemented sand gravel and rock dam construction technology in the main project of large hydropower station, and its supporting design system still has many technical points to be improved. In this paper, theoretical analysis, physical tests, numerical simulation and engineering research methods were used to study the structure and structural design of the CSGR dam. The results show that the section of the CSGR dam is determined comprehensively according to the foundation conditions and dam building materials, and the single safety factor method is recommended for structural calculation; The zoning of the dam body should be divided according to functional requirements, and the rich slurry cemented sand gravel and rock can be used as the anti-seepage protective layer on the dam surface; Generally, the dam body is not provided with longitudinal and transverse joints, and transverse joints can be provided when the building layout needs and the construction strength is restricted; The anti-seepage protection layer of the dam should be equipped with transverse joints; Waterstop shall be set at the contact part between the dam transverse joint and the river to protect the internal CSGR; Temperature control measures may not be taken for the CSGR dam. The research results have accumulated valuable experience for the application of the CSGR dam construction technology in large and medium-sized projects.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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