Model test study on the stability of cobble strata during shield under-crossing

A method for characterizing the deformation localization in granular materials using the relative particle motion

“…Granular materials are frequently encountered in geotechnical engineering, and their mechanical behavior is important for the safety of geo-structures (Chen et al, 2011;Tang et al, 2017;Zhu et al, 2019;Hu et al, 2020;Liu et al, 2022). Geotechnical hazards are triggered by the deformation localization of granular materials, such as landslides , foundation failure (Gao et al, 2013), and ground collapse induced by tunnelling (Lin et al, 2021;Du et al, 2019). Extensive researches have thus been carried out to develop methods that can capture the deformation localization in granular materials through laboratory tests and numerical simulations (Chevalier et al, 2019;Xu et al, 2019;Ma et al, 2019;Guo et al, 2014).…”

Study on the Influence of Subway Tunnel Induced by Under-Crossing Tunnel Based on Monitor Data in Shenzhen, China

“…The disturbance from subsequent tunnel may produce more deformation to existing tunnels. In the literature, some studies focused on the influence model based on the relative position relationship between tunnels and geotechnical conditions [7][8][9][10][11][12]. Some scholars analyzed subsidence influence on existing tunnels through field measurement methods [13][14][15][16][17][18][19].…”

Dynamic Response of Parallel Overlapped Tunnel under Seismic Loading by Shaking Table Tests

“…In previous studies on overlapped tunnels, scholars mainly discussed the construction mechanical characteristics of overlapped tunnels and have already made some achievements in the statics of the cross tunnel in terms of the distribution of mechanical characteristics, reinforcement technology, and monitoring and measurement [7][8][9][10][11][12][13][14][15][16][17]. Some scholars have analyzed the mechanical characteristics and stability of the surrounding rock of the cross tunnel with a small clear distance through different numerical software; the results showed that the maximum displacement at the crown was caused by the construction disturbance and the release of the stress of the crown [10,11].…”

“…Some scholars have analyzed the mechanical characteristics and stability of the surrounding rock of the cross tunnel with a small clear distance through different numerical software; the results showed that the maximum displacement at the crown was caused by the construction disturbance and the release of the stress of the crown [10,11]. Liu et al and Lin et al [12,13] conducted a theoretical analysis and numerical simulation study on the construction process of the overlapped subway tunnel with a small clear distance. ey pointed out that when a new tunnel was constructed over the span, the additional stress generated was mainly concentrated in the original tunnel area at the intersection of the tunnel.…”