Study on synergistic system of energy-absorbing yielding anti-impact supporting structure and surrounding rock

Abstract

Through the improvement of supporting structure and the utilization of the interaction between surrounding rock and supporting structure, the synergistic system of energy-absorbing yielding anti-impact supporting structure and surrounding rock is established. The process of energy absorption device, energy-absorbing yielding anti-impact supporting structure and synergistic system under impact is simulated to analyze the properties of them. The following conclusions could be drawn. The deformation and yielding process under compression of energy absorption device is divided into five stages. Compared with the traditional supporting structure, the energy-absorbing yielding anti-impact supporting structure has the reaction force with lower value and smaller fluctuation range before the deformation of the energy absorption device reaches the third ascending section. The synergy between surrounding rock and supporting structure plays an important role in roadway support. Compared with the supporting structure without surrounding rock, the reaction force of the supporting structure in the synergistic system is lower, and a stationary stage is added in the early stage of the reaction force curve.

Study on the Support Effect of Energy-Absorbing Support Structure in the Coal Mine Roadway and the Synergic Effect with Wall Rock

“…Te crucial component of the energy absorption and anti-impact support is a structural member with special geometry [25,26]. Te mechanical properties and energy absorption efect of this member play a critical role in the anti-impact performance of the entire support.…”

Experimental study of energy‑absorbing and support characteristics of glass microsphere-filled steel tube columns under uniaxial compression

“…Showcasing exceptional subsequent support performance in the later stages of loading, the particles could demonstrate an increase in strength as they fracture further. This has great potential in areas that require both energy absorption and certain support capabilities, such as yielding energy-absorbing support structures in coal mines 10 , 14 , damping structure for soft rock support 15 , 16 , and underground protective engineering projects 11 , 17 .…”

Research on the Laws of Overlying Rock Fracture and Energy Release under Different Mining Speeds

“…As deep resource extraction progressively expands, mines are being developed at increasingly greater depths, resulting in heightened stress effects that contribute to a rising accident rate of impact damage between working faces and tunnels [1][2][3]. In response to the growing frequency of these disasters and accidents, numerous scholars have suggested a variety of preventive strategies, such as zonal impact prevention support design [4], risk quantification assessments for mining schemes [5], the development of mine rock burst systems [6], and the creation of specific energy-absorbing and anti-erosion structures for tunnels [7,8]. However, challenges such as the high cost of support materials, the low accuracy of monitoring and early warning systems, and the intense workload for workers still persist [9].…”