Abstract
Underground mining causes the ground to deform, leading to the destruction of buildings. Horizontal strain is one of the most important causes of damage to strip foundation buildings. However, related research is insufficient and the mechanism behind building damage caused by horizontal strain remains unclear, resulting in several difficulties in performing coal mining under villages. In this study, interface slip and soil pressure caused by the horizontal strain of ground transfer between soil and buildings are investigated, and stress concentration in buildings driven by soil movement is considered the primary cause of building damage. The influences of the mechanical parameters of soil and the geometric parameters of a building on stress distribution inside a building are analyzed by establishing a stress distribution model of a building under different ground horizontal strains. Softening the foundation or designing deformation joints inside a building can reduce the influence of horizontal strain on a building. This research can provide an important reference for performing coal mining safely under villages and designing building protection against ground horizontal strain.
Highlights
As one of the most important energy sources, coal will still be utilized on a large scale in the few decades
Ground movement can be reduced via filling mining, strip mining, and harmonic mining, understanding how ground deformation acts on buildings and the interaction between ground deformation and building damage will promote the development of a coal mining technology that can be performed safely under villages and a building protection technology against surface movement and deformation [3]
To solve the problem of uncertainty of building damage caused by tunnel excavation, Fu et al [6] developed a method based on the displacement relationship between soil and buildings. is method can be used to analyze the damage of a building by applying probability estimation to construction
Summary
As one of the most important energy sources, coal will still be utilized on a large scale in the few decades. In addition to coal mining, other causes of surface movement deformation include tunnel excavation and groundwater overexploitation. Surface movement deformations caused by the aforementioned reasons interact with the structure of a building, threatening the safe use of this building. After studying the correlation between tunnel excavation that leads to structural deformation and tunnel site conditions via discrete metasimulation, Son [5] proposed a new method for evaluating the relationship between tunnel depth diameter ratio and building damage level. To solve the problem of uncertainty of building damage caused by tunnel excavation, Fu et al [6] developed a method based on the displacement relationship between soil and buildings. In accordance with a numerical analysis, they proposed a predictive method for tunnel excavation that causes the deformation of surface movement
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