在浅层埋葬的偏向道门口段中,对施工风险的定量分析
Bo Wu1, Ruonan Zhu2, Wuhao Wang1
1School of Civil and Architecture Engineering, East China University of Technology, Nanchang, 330013, China.
Scientific reports
|October 6, 2024
概括
一种新的非侵入性随机有限元素方法增强了道挖掘可靠性分析. 这种方法准确量化了浅处埋藏的软地面道的故障概率,提高了工程安全.
科学领域:
- 地质技术工程 地质技术工程
- 计算力学 计算力学 计算力学
- 道工程 道工程是指道工程.
背景情况:
- 浅埋软地面道面临着严重的崩不稳定性挑战.
- 传统方法在道挖掘的可靠性分析中缺乏足够的准确性.
研究的目的:
- 为道可靠性评估引入一种非侵入性的随机有限元素方法 (NSFEM).
- 在不同的挖掘方法下量化评估道可靠性.
- 确定影响道稳定的关键地质技术参数.
主要方法:
- 使用ABAQUS有限元软件进行道挖掘力学和参数灵敏度分析.
- 开发了一个基于Python的软件接口来导出明确的极限状态方程.
- 应用了非侵入性的随机有限元素方法进行概率分析.
主要成果:
- NSFEM显著提高了计算道挖掘失败概率的效率和准确性.
- 金库解决是温比山道门口部分的最大位移.
- 失效的概率各不相同: 36.11% (环形保留核心土壤), 28.03% (单侧墙导向坑),和 20.02% (双侧墙导向坑).
结论:
- 浅处埋藏的软地道的可靠性主要受到地质技术参数的影响,例如重量,弹性模量和凝聚力.
- 该NSFEM提供了一个强大的框架来评估道工程可靠性.
- 结果为未来类似道项目的研究和工程实践提供了宝贵的见解.
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