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| 2023, Vol. 60(1): 219-224 DOI: | ||
| Mechanism and Effect Analysis of Surface Deep-hole Sleeve Valve Pipe Grouting Reinforcement in Deep-buried Water-bearing Loess Tunnel | ||
| （1. Engineering Management Center of China State Railway Group Co., Ltd., Beijing 100844; 2. Lanzhou University, Lanzhou 730000;3. China Railway First Survey and Design Institute Group Co., Ltd., Xi′an 710043) | ||
| Received null Revised null | ||
| Supporting info | ||
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