对于山区的山体滑坡风险场景的数字双胞胎建模
Lai Li1,2,3, Bohui Tang1,2,3,4, Fangliang Cai1,2,3
1Faculty of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China.
Sensors (Basel, Switzerland)
|January 28, 2026
概括
本研究介绍了一个数字双胞胎框架,使用球形离散元素方法来预测降雨引起的山体滑坡. 该模型将水力机械场结合起来,以实时绘制山体滑坡演变的地图.
科学领域:
- 地质工程是地质工程.
- 计算地质力学计算地质力学
背景情况:
- 降雨引起的山体滑坡是一个重要的地质危险.
- 这些事件威胁着生命,财产和生态系统,需要改进预测方法.
研究的目的:
- 开发一个先进的数字双胞胎框架,以缓解高海拔山区降雨引起的山体滑坡.
- 为增强滑坡预测和分析结合多个物理场.
主要方法:
- 使用球形离散元件方法 (DEM) 进行滑坡模拟.
- 开创了三维密封球形DEM,并简化了接触力学,以提高计算效率和稳定性.
- 开发了一种结合的水力机械模型,整合了应力,降雨和漏场.
主要成果:
- 在2D模拟中确定了一种梯形应力分布,应力向内增加.
- 在失败后观察到应力大小的变化,而整体模式仍然存在.
- 通过简化摩擦建模,实现了增强的计算效率和数值稳定性.
结论:
- 拟议的数字双胞胎框架可以实时绘制山体滑坡演变的地图.
- 动态参数调整允许准确建模滑坡期间的水力机械相互作用.
- 这项研究推进了降雨引起的山体滑坡的预测和缓解策略.
相关概念视频
Relative Risk
2.1K
Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...
2.1K
IR Frequency Region: Fingerprint Region
1.9K
IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the...
1.9K
Factors Affecting the Risk of Infection
13.4K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
13.4K
The Eukaryotic Promoter Region
18.8K
The eukaryotic promoter region is a segment of DNA located upstream of a gene. It contains an RNA polymerase binding site, a transcription start site, and several cis-regulatory sequences. The proximal promoter region is located in the vicinity of the gene and has cis-regulatory sequences and the core promoter. The core promoter is the binding site for RNA polymerase and is usually located between -35 and +35 nucleotides from the transcription start site. The distal promoter regions are...
18.8K
The Eukaryotic Promoter Region
3.9K
3.9K
Region of Convergence
918
The z-transform is a powerful mathematical tool used in the analysis of discrete-time signals and systems. It is a crucial tool in the analysis of discrete-time systems, but its convergence is limited to specific values of the complex variable z. This range of values, known as the Region of Convergence (ROC), is fundamental in determining the behavior and stability of a system or signal. The ROC defines the region in the complex plane where the z-transform converges, which can take various...
918


