Shijiazhuang Tiedao University

Moving-target-enclosing control of nonholonomic MASs with bearing-only measurements and collision avoidance

This paper focuses on a moving-target-enclosing control problem for nonholonomic multi-agent systems with bearing-only measurements and collision avoidance. Due to the lack of distance measurements, a bearing-only observer is designed first to estimate the complete relative posit...

Shear-Performance Analysis of Piezoelectric Anchors in Rock-Slope Monitoring

ABSTRACT Bolt-stress monitoring is essential for rock-slope stability, yet conventional methods often fail to capture internal stress evolution and shear-surface locations. This study develops a piezoelectric anchor integrated with a self-sensing piezoelectric geotechnical cable...

Transformer architecture incorporating discrete wavelet transform for fully automated baseline correction of near-fault ground-motion records

Baseline correction of near-fault ground motions (NFGMs) is essential for characterizing permanent displacement and pulse-like features, but remains challenging because low-frequency noise must be removed without distorting physically meaningful components in integrated velocity...

3D mechanical response and evolution characteristics of load bearing zone for surrounding rock mass in large section tunnels

Abstract In deep-buried tunnels, surrounding rock acts as both a load source and load-bearing structure via the internal load-bearing zone, whose three-dimensional (3D) evolution governs support design and tunnel long-term stability. This study investigates the 3D spatial effects...

Influence of tunnel-fault intersection angle on the seismic deformation mode of a large-span cross-fault subsea tunnel

Cross-fault subsea tunnels are subjected to spatially non-uniform seismic motion and fault-induced permanent displacement, but the role of the tunnel-fault intersection angle remains difficult to evaluate when fault rupture is represented only by prescribed offsets. Taking the Qi...

Ground vibration induced by subway and bus traffic: Measurement and impact assessment

Ground vibrations generated by urban transit systems present a growing environmental concern, adversely affecting community comfort and structural integrity. This study employs comprehensive field measurements to quantify the propagation laws and combined effects of vibrations in...

Experimentally Informed Numerical Modelling of Cementitious Grout-Jacketed RC Columns with Layered Freeze–Thaw Damage

Freeze–thaw deterioration in jacketed reinforced concrete (RC) columns is spatially non-uniform, yet this depth-dependent damage is rarely represented explicitly in structural simulations. This study develops an experimentally informed numerical modelling framework for cementitio...

Optimisation design of rail profiles for improving wear and RCF performances on a small-radius curve: A case study

Abstract Wear and rolling contact fatigue (RCF) are regarded as two prominent factors that deteriorate the long-term service performances and aggravate the maintenance costs of metro rails on the small-radius curves, therefore an effective countermeasure against which is needed....