Joint response of surface subsidence and strong mine earthquake under high-positioned and thick-hard strata in deep coal mine

Overview of the working face The Yingpanhao Coal Mine is located in Wushen Banner, southwestern Ordos City, Inner Mongolia Autonomous Region. The mine is divided into four mining areas: 21 mining area, 22 mining area, 23 mining area, and 24 mining area. The 22 mining area is the first mining area of the mine, located […]

In a disastrous state | Nepali Times

Photo: SUMAN NEPALI As Nepal prepared to mark National Earthquake Safety Day on 16 January to commemorate the 8.3 magnitude disaster that hit Kathmandu in 1934, the country went into mourning for the air crash in Pokhara. There were 72 people on board and there are likely no survivors. This was the worst disaster in Nepal’s domestic […]

Self‐Centering Steel Frame Systems for Seismic‐Resistant Structures – Zhu – 2020 – Advances in Civil Engineering

1. Introduction The brittle failures occurred at the beam-column joints of numerous conventional soldered steel frames during the Northridge earthquake. As shown in Figure 1(a), this conventional connection incorporates a shear plate bolted to the beam web and sites the welds in joint core area. Investigations conducted in the 1970s demonstrated that this connection was […]