由于Fundao尾矿大的故障造成的建筑病态:主要组件分析方法
Ladir Antonio DA Silva Junior1, Tatiana B Dos Santos2
1Universidade do Estado de Minas Gerais, Departamento de Engenharia Civil, Av. Brasília, 1304, Baú, 35930-314 João Monlevade, MG, Brazil.
Anais da Academia Brasileira de Ciencias
|August 30, 2023
概括
芬达奥水故障造成了巴西格斯泰拉 (Gesteira) 的建筑物严重损坏. 沉重的车辆流量是结构问题的更大原因,而不是与尾矿泥直接接触.
科学领域:
- 土木工程 土木工程是指土木工程.
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
背景情况:
- 2015年Fundao大故障释放了大量的采矿尾矿,影响了周边社区.
- 评估建筑物的结构损坏对于了解此类灾害的长期影响至关重要.
研究的目的:
- 调查和量化Fundao大故障造成的Gesteira地区建筑物的损坏.
- 为了区分重型车辆交通与直接尾矿泥接触对建筑完整性的影响.
主要方法:
- 分析了对152座建筑物进行的调查的技术报告.
- 主要组件分析 (PCA) 的应用,以了解数据的相互依赖性和病理.
主要成果:
- 主要组件分析有效地解释了数据的变化,并确定了损害原因.
- 重型车辆流量被确定为损坏的主要原因,影响了57%的建筑物.
- 与废弃物泥直接接触影响了43%的受调查建筑物.
结论:
- 沉重的车辆流量在Fundao大故障后对建筑病理产生了重大影响.
- 该研究强调了大故障对城市基础设施的复杂和多方面的影响.
相关概念视频
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
67
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
67
Lumber Defects
148
Lumber defects, which can affect both the appearance and structural integrity of wood, include a variety of growth and manufacturing flaws. Growth defects such as knots and knotholes occur where branches were once attached to the tree trunk, with knotholes forming when these knots fall out. Other natural defects include decay and insect damage, which compromise the wood's strength and durability.
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
148
Internal Loadings in Structural Members: Problem Solving
1.3K
When designing or analyzing a structural member, it is important to consider the internal loadings developed within the member. These internal loadings include normal force, shear force, and bending moment. Engineers can ensure that the structural member can support the applied external forces by calculating these internal loadings.
To illustrate this, let's consider a beam OC of 5 kN, inclined at an angle of 53.13° with the horizontal and supported at both ends. Determine the internal...
To illustrate this, let's consider a beam OC of 5 kN, inclined at an angle of 53.13° with the horizontal and supported at both ends. Determine the internal...
1.3K
Principal Stresses: Problem Solving
211
When analyzing two planes intersecting at right angles under the influence of shearing, tensile, and compressive stresses, it is essential to identify principal planes, maximum shearing stress, and principal stresses. To find the principal planes, apply a formula that equates them to twice the shearing stress divided by the difference between tensile and compressive stresses.
211
Design Example: Maintaining Level of an Embankment
91
Constructing a roadway embankment over uneven terrain requires precise leveling to ensure stability and proper drainage. Surveyors use a leveling instrument and staff to calculate ground elevations and determine the required fill material at each point along the embankment alignment.The process begins by positioning a leveling instrument near a benchmark with a known elevation. A backsight reading establishes the instrument height, which serves as a reference for subsequent measurements. A...
91
Resultant of a General Distributed Loading
707
While designing structures exposed to non-uniform loads, it is crucial to consider the resultant force and its location. This resultant force is a single vector representing the net force applied due to the distributed load.
Examples such as load distribution due to wind and load distribution on a bridge illustrate how this concept is used to analyze and design safe, reliable structures under variable loading conditions. Most structures, such as residential buildings, bridges, and towers, are...
Examples such as load distribution due to wind and load distribution on a bridge illustrate how this concept is used to analyze and design safe, reliable structures under variable loading conditions. Most structures, such as residential buildings, bridges, and towers, are...
707


