Analysis of loess water migration regularity and failure response of tunnel structure under rainfall environment

K Tang, D Liu, S **e, J Qiu, J Lai, T Liu… - Bulletin of Engineering …, 2024 - Springer
The potential collapsible deformation of loess surrounding rock is not conducive to the safety
and stability of the tunnel, especially under rainfall conditions, which may induce severe …

Response characteristics and preventions for seismic subsidence of loess in Northwest China

J Qiu, X Wang, J Lai, Q Zhang, J Wang - Natural Hazards, 2018 - Springer
Seismic subsidence of loess had been verified by microstructure characteristic, dynamic
triaxial test and in situ simulation test using blasting vibration. It has gradually become a …

Failure mechanism and countermeasures of rainfall-induced collapsed shallow loess tunnels under bad terrain: A case study

Y Qin, C Shang, X Li, J Lai, X Shi, T Liu - Engineering Failure Analysis, 2023 - Elsevier
With the rapid increase in the construction of loess tunnels, more and more problems are
encountered during the construction process, especially regarding the issue of collapse in …

Microstructural evolution of loess soils from the Loess Plateau of China

P Li, W **e, RYS Pak, SK Vanapalli - Catena, 2019 - Elsevier
A series of laboratory tests were conducted on intact specimens of two loess soils to
characterize their collapsibility, shear strength, microstructure and mineralogy. In addition …

Failure analysis and treatments of a loess tunnel being constructed in ground fissure area

E Ma, J Lai, S Xu, X Shi, J Zhang, Y Zhong - Engineering Failure Analysis, 2022 - Elsevier
Tunnelling in ground fissure areas is prone to collapse even with reasonable reinforcement.
Based on the collapse of a tunnel in **'an Metro Line 3 near a ground fissure, potential …

Creep mechanical and microstructural insights into the failure mechanism of loess landslides induced by dry-wet cycles in the Heifangtai platform, China

B Lian, X Wang, H Zhan, J Wang, J Peng, T Gu… - Engineering …, 2022 - Elsevier
Affected by groundwater fluctuations, the loess around the hydro-fluctuation zone near the
groundwater table is frequently subjected to periodic dry-wet cycles. The investigation on the …

Characterization of the mechanisms underlying loess collapsibility for land-creation project in Shaanxi Province, China—a study from a micro perspective

XA Li, L Li, Y Song, B Hong, L Wang, J Sun - Engineering Geology, 2019 - Elsevier
Using the major land-creation project 'to bulldoze mountains to build cities' implemented in
the city of Yan'an as an example, the collapse potential, microscopic observations …

Influence of freeze-thaw cycles on microstructure and hydraulic conductivity of saline intact loess

J Xu, Y Li, C Ren, S Wang, SK Vanapalli… - Cold Regions Science …, 2021 - Elsevier
In this paper, influence of freeze-thaw (FT) cycles on the microstructure and hydraulic
conductivity were investigated on saline intact loess specimens by infiltrating sodium sulfate …

Characterization and evolution of three-dimensional microstructure of Malan loess

Y Wei, W Fan, B Yu, L Deng, T Wei - Catena, 2020 - Elsevier
Loess is an aeolian, nonstratified deposit. Loess collapsibility is considered to be closely
related to its microstructure. The three-dimensional (3D) microstructure of loess specimens …

Microstructure and permeability evolution of remolded loess with different dry densities under saturated seepage

P Xu, Q Zhang, H Qian, W Qu, M Li - Engineering Geology, 2021 - Elsevier
Understanding water seepage in loess is important for engineering constructions and geo-
hazard prevention in loess regions. However, the saturated seepage behavior of remolded …