建筑结构对隧道爆破的应力响应与稳定性研究

发布时间：2018-05-08 21:43

本文选题：隧道 + 爆破震动　；参考：《建筑技术》2017年11期

【摘要】：以某隧道工程掘进开挖爆破的震动安全监测项目为依托,对隧道上方民用建筑物的应力响应和稳定性进行研究。选取爆源位于建筑物下方边角处和中心处等不同位置时,运用三维数值模拟研究该建筑各结构构件基础、梁、板、柱、墙体等部位的震动应力时程分析、动力响应分布规律及稳定性,为控制隧道开挖爆破对地面建筑结构的危害提供基础数据,提出对建筑物进行重点构件部位的安全监测或采取针对性加固措施。现场调研验证了的建筑破坏情况与数值模拟结果基本一致。
[Abstract]:The stress response and stability of civil buildings above the tunnel are studied based on the vibration safety monitoring project of excavation blasting in a tunnel project. When the blasting source is located at the corner and center of the building, 3-D numerical simulation is used to study the time-history analysis of the vibration stress of the foundation, beam, plate, column and wall of the building. The distribution law and stability of dynamic response provide the basic data for controlling the damage of tunnel excavation blasting to the ground building structure, and put forward the safety monitoring of the key parts of the building or the corresponding reinforcement measures. The site investigation verifies that the damage of the building is basically consistent with the numerical simulation results.
【作者单位】：重庆建筑工程职业学院;中国矿业大学力学与建筑工程学院;
【基金】：重庆市教委科学技术研究项目(KJ1604104)
【分类号】：TU31;U455.6

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