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| 车辆荷载下隧道混凝土顶板数值模拟研究 |
| Numerical Simulation of Concrete Tunnel Roof under Vehicle Load |
| 投稿时间：2020-09-30 |
| DOI：10.16018/j.cnki.cn32-1650/n.202101011 |
| 中文关键词: HME-V补偿收缩混凝土 隧道顶板 数值模拟 |
| 英文关键词: HME-V shrinkage-compensating concrete tunnel roof numerical simulation |
| 基金项目:国家自然科学基金面上项目(52078317)；江苏省建设系统科技项目(2020ZD05)；苏州市建设系统科研项目(2020-15)。 |
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| 中文摘要: |
| 地下隧道使用期间上部荷载对顶板的荷载可能对其内部应力分布与微变形产生影响。研究HME-V加强混凝土作为隧道顶板材料的可行性，并对掺高性能抗裂剂的混凝土结构进行理论分析和仿真模拟。探讨隧道顶板结构的力学性能和稳定性，对应力场、应变场、位移场进行分析。结果表明，应力与变形状态均在力学模型估算的范围之内，对实际工程具有一定的参考价值。 |
| 英文摘要: |
| The load of the upper load on the roof of underground tunnel may affect the internal stress distribution and micro-deformation. The feasibility of using HME-V reinforced concrete as tunnel roof material is studied, and the concrete structure mixed with high-performance anti-crack agent is theoretically analyzed and simulated. The mechanical properties and stability of tunnel roof structure are discussed, and the stress field, strain field and displacement field are analyzed. The results show that the stress and deformation state are within the range of mechanical model estimation, which has a certain reference value for practical engineering. |
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