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2011年03 期
| 標題 |
| 250 km/h提速區(qū)段涵頂路基凍害整治(51 卷) |
| 英文標題 |
| Treatment of frost damage of subgrade above culvert top at 250 km/h speed up section |
| 摘要 |
| 本文對京哈線250 km/h提速區(qū)段凍害產(chǎn)生的原因進行了分析，指出凍害是由于路基土體含水量較大、涵洞結(jié)構(gòu)設(shè)計不合理造成的，根據(jù)凍害形成的特點，對涵上路基凍高超過8 mm的涵洞采取路基平孔排水方法整治，凍高小于8 mm的凍害利用墊板和調(diào)高扣件進行日常維修，實踐表明整治效果 |
| 作者 |
| 新聞作者:喬連軍 |
| 關(guān)鍵字 |
