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High performance underground
| 题名： | High performance underground |
| 正文语种： | eng |
| 摘要： | The project objective was the construction of a stable track-bed in a 8,176-meter railway tunnel in Southern Germany. In most cases, this consists of a frost protection layer, a cement treated base layer (CTB) and a layer of concrete or asphalt. In compar |
| 出版年： | 2021 |
| 期刊名称： | World highways |
| 卷： | 30 |
| 期： | 12App.2 |
| 页码： | 5-5 |
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