绿地中心既有光缆下基坑连通道施工技术

绿地中心既有光缆下基坑连通道施工技术 English Version

1.上海建工集团,上海201324;
2. 济南大学土木建筑学院,山东济南 250022;
3. 山东省城市地下工程支护及风险监控工程技术研究中心,山东济南 250022;
4. 同济大学土木工程学院,上海 200092

详细信息

1. Shanghai Construction Group, Shanghai 201324, China;
2. School of Civil Engineering and Architecture, University of Jinan, Ji'nan 250022, China;
3. Engineering Technology Research Center on Urban Underground Engineering Support and Risk Monitoring of Shandong Province, Ji'nan 250022, China;
4.School of Civil Engineering, Tongji University, Shanghai 200092, China

摘要: 本工程在既有光缆下施工基坑连通道,施工时要避免光缆产生过大的沉降造成不利影响。通过有限元模拟和专家论证,最终确定采用管幕技术对通道周围土体先行支护,再施工既有光缆下的连通道。经现场监测土体最大沉降为12 mm,符合光缆变形控制标准,确保了既有光缆的正常使用。该工程运用的管幕连通道施工技术可为类似工程提供良好的借鉴。
- 连通道 /
- 光缆 /
- 有限元模拟 /
- 施工工艺
Abstract: The connecting passage of the foundation pit is constructed under the existing optical fiber cables of Greeland Center. The excessive settlement caused by optical fiber cables should be avoided during the construction, which may lead to unfavorable effects. Through finite element modeling and expert discussion, the pipe roofing method is finally adopted for supporting the surrounding soils, and then the connecting passage under optical fiber cables is constructed. Through the field monitoring, the largest settlement of soil is 12 mm, which conforms to the deformation control standards of the optical fiber cable, and the normal use of the existing optical fiber cables is ensured. The pipe roofing construction technology used in the project may provide a good reference for similar projects.
- connecting passage /
- optical fiber cable /
- finite element modelling /
- construction technology

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