Analysis of pipeline leakage in unsaturated stratum: A new seepage-diffusion model

Y Liu, H Yu, X Zhang, X Lan, X Li, Y Sun… - … and Underground Space …, 2024 - Elsevier
Accurate prediction of the spread of fluids leaking from underground pipelines is crucial for
risk assessment. In this study, we developed a method for predicting the diffusion range of …

Failure evolution and mechanism of ground collapse due to exfiltration of shallowly buried water pipeline

JC Liu, ZY Wang, Y Tan, YC Cao - Engineering Failure Analysis, 2024 - Elsevier
Exfiltration of defective water pipelines is one of the leading causes contributing to the
frequent ground collapses in congested urban areas; hence, revealing the failure evolution …

Investigation on synchronous grouting process during shield tunneling in coarse grained ground using CFD-DEM approach

C Liu, D Zhu, J Cui, L Jing, X Huang - Computers and Geotechnics, 2024 - Elsevier
Synchronous grouting plays a pivotal role in the shield tunnelling for mitigating the
surrounding soil displacement. A Computational Fluid Dynamics-Discrete Element Method …

An upper-bound solution for ground collapse induced by shallow rectangular cavity in unsaturated soils

X Li, R Chen, L Huang, B Pu… - Canadian Geotechnical …, 2024 - cdnsciencepub.com
Ground collapse occurs frequently due to the roof or roof–sides breakdown of shallow
cavities, but analytical solutions considering both types of failures remains a challenge and …

Model Test on the Collapse Evolution Law of Tunnel Excavation in Composite Strata with a Cavity

C Zhang, J Gao, Z Wang, C Liu - Buildings, 2024 - mdpi.com
More complex geological conditions could be encountered with the construction of urban
subway projects. At present, many subway tunnels have been built in composite strata with …

The Seepage Evolution Characteristics in Undisturbed Loess under Dynamic Preferential Flow: New Insights from X-ray Computed Tomography

X Li, Y Li, Q Li, X Zhang, X Shi, Y Lu, S Zhang, L Zhang - Water, 2023 - mdpi.com
Preferential flow is widely developed in varieties of voids (such as macropores and fissures)
in loess areas, affecting slope hydrology and stability and even leading to geological …

Study on the Influence of Urban Water Supply Pipeline Leakage on the Scouring Failure Law of Cohesive Soil Subgrade

J Mao, Y Wang, H Zhang, X Jing - Water, 2023 - mdpi.com
Urban water supply pipelines serve as vital lifelines for urban operations. However, the
occurrence of underground pipeline leakage, caused by various factors, results in significant …

Experimental and numerical investigation on soil erosion under different pipeline-leaking locations

ZY Wang, Y Tan, YY Long - IOP Conference Series: Earth and …, 2024 - iopscience.iop.org
In recent years, cave-in ground failures have become increasingly common worldwide. The
leakage of defective pipelines buried below ground level has been identified as a significant …