Abstract The utilization of Underground Pumped Storage Power Systems (UPSP) addresses
the growing need for energy storage in the face of increasing intermittent energy sources …

In this paper, the cyclic constitutive equations were proposed to describe the constitutive
behavior of cyclic loading and unloading. Firstly, a coupled damage variable was derived …

This paper investigates mechanical behaviours of sandstone during post-peak cyclic
loading and unloading subjected to hydromechanical coupling effect, confirming the peak …

It is extremely difficult to accurately predict the rock damage evolution during the
underground space development or the deep excavation activity. In this paper, based on the …

Cyclic loading and confining pressure unloading are two common types of disturbance
effects in rock engineering. In this study, a series of triaxial tests under combined …

Based on the underground powerhouse of Shuangjiangkou hydropower station, Octree
theory is adopted to define the indices of the microseismic (MS) spatial aggregation degree …

With the increasing demand for mineral and energy resources, deep underground
operations in mining, oil and gas industries become more frequent. This also resulted in …

In this paper, we shall present a new micromechanical damage model for capturing the
mechanical behaviors of quasi-brittle geomaterials under a wide range of compressive …

Tunnel construction usually suffers some water-filled karst caves, which can change the
stress and flow fields and bring about unpredictable engineering disasters. A typical form of …

The underground powerhouse of Lianghekou hydropower station is deeply buried with high
ground stress and complicated geological conditions. To delineate rock mass damage …