The complicated tunnelling conditions and variable engineering demands have made
numerous challenges of mesh-reinforced lining structures. Thereafter, the steel fiber …

Accelerators are widely used in shotcrete to achieve rapid setting and hardening properties.
This paper reviews different chemicals of accelerators and discusses their effects on …

Shotcrete is often used for the construction and stabilization of tunnels and other
underground structures, where it is susceptible to different forms of physical and chemical …

Despite the wide application of shotcrete in underground constructions, its long-term
performance is greatly affected by the challenging service conditions. Thus, improving the …

Statistical analysis of tunnel fire accidents (TFAs) in China 2000–2016 as related to causes,
characteristics, and consequences are discussed in this study with average frequency, time …

The growing state of research on recycled aggregate (RA) concrete presents academics
with an information overload that may obstruct effective research and academic …

In view of the temperature distribution of the high-temperature geothermal tunnels, the
surrounding rock temperature was divided into four grades (40° C, 60° C, 80° C and 100° C) …

Using shotcrete as lining supports can effectively prevent tunnels from the rock burst of the
surrounding rock, while rock-concrete interfaces play key roles in determining the supporting …

The mechanical properties of rock can be degraded by long-term freeze-thaw cycles (FTCs).
However, the damage constitutive model of rock subjected to FTCs for simulating the whole …

Energy tunnel has attracted increasing interest in preventing tunnel frost damage and
providing energy for space conditioning through utilizing geothermal energy from ground …