典型的结构部件在现有建筑的地下室添加的性能
Ping Zhao1, Youqiang Qiu2, Zhanqi Wang3
1School of Architecture and Engineering, Tongling University, Tongling, 244000, China.
Scientific reports
|April 14, 2025
概括
地下层的补充可以破坏现有建筑物的稳定. 这项研究模拟了地下室挖掘对基础和柱子的影响,发现更深的挖掘和初始的土壤移除导致了显著的压力和变形. 监控中央基础坑组件对于安全至关重要.
科学领域:
- 土木工程 土木工程是指土木工程.
- 地质技术工程 地质技术工程
- 结构工程 结构工程
背景情况:
- 城市土地稀缺性需要对现有建筑物增加地下室.
- 建筑地下层的补充可以损害现有基础和超层结构的稳定性.
- 地挖掘对邻近结构部件的精确影响需要详细调查.
研究的目的:
- 为了研究在地下室增加施工过程中结构部件的性能.
- 分析柱子的应力和变形特征,条形基础和增强.
- 为优化类似项目的设计和施工提供见解.
主要方法:
- 为案例研究开发一个三维有限元模型.
- 模型与实际地下室增加项目的测量数据的验证.
- 模拟挖掘深度,以评估对结构部件的影响.
主要成果:
- 结构部件的应力和变形对挖掘深度高度敏感,随着深度的增加而加剧.
- 条形基础 (-18.6毫米),柱脚 (-13.79毫米) 和 (-16.1毫米) 的最大结算值被记录下来.
- 地下隔膜壁的最大垂直和水平移位分别为7.6mm和18.1mm. 堆经历了压力力,对挖掘深度的敏感性最小.
结论:
- 挖掘深度,特别是最初的土壤层去除,显著影响结构部件的行为.
- 迁移和内部力量集中在基础坑的中心附近.
- 加强对中央基础坑部件的监测对于防止工程事故和确保结构完整性至关重要.
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