| 膨胀材料注浆抬升法在地铁隧道不均匀沉降修复施工的应用 |
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| 引用本文： | 邵昀泓,周佳俊,康杰.膨胀材料注浆抬升法在地铁隧道不均匀沉降修复施工的应用[J].路基工程,2022,0(3):172-176. |
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| 作者姓名： | 邵昀泓 周佳俊 康杰 |
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| 作者单位： | 1.浙江交通职业技术学院，杭州 311112 |
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| 基金项目： | 浙江省基础公益研究计划项目:膨胀性可调控材料快速修复地铁运营期不均匀沉降关键技术研究（LGG20E080003） |
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| 摘 要： | 以杭州地铁某线多处运营路段不均匀沉降修复工程为依托，研发由膨胀性干粉、膨胀抑制剂和注浆填充料组成的膨胀性注浆材料，用于地铁隧道微扰动注浆。膨胀材料注浆抬升修复运营地铁隧道不均匀沉降施工方法具有3项优势:复位精度高，处治效果好；膨胀材料耐久性良好，可压缩性较低，满足工后变形要求；施工期短，材料和能耗相对少，施工成本较低。该技术具有良好的工程应用前景。
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| 关 键 词： | 地铁隧道 不均匀沉降 膨胀材料 注浆顶升 施工技术 |
| 收稿时间： | 2021-12-13 |
Application of Lifting-up Technology with Expansive Grouting Materials to Rehabilitate Differential Settlement of Subway Tunnel |
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| Abstract: | In relation to rehabilitation project of the differential settlement of multiple operation sections of Hangzhou Metro Line, a kind of expansive grouting materials, which are composed of expansive powder, expansion inhibitor and grouting filling material, have been developed and used for micro-perturbation grouting in subway tunnel. The construction method of rehabilitating differential settlement of subway tunnel in service by lifting-up with expansion materials grouting exhibits 3 advantages: high restoration precision, good treatment effect; the expansive grouting materials have good durability and low compressibility which meets the requirement of post-construction deformation; short construction period, relatively less material and energy consumption, low construction cost. Therefore, it has obvious economic and social benefits and good engineering application prospect. |
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