Jointed rock masses are frequently encountered during the TBM excavation. To investigate breakage mechanism of jointed mass by disc cutter and precursory information before failure, a series indentation tests were performed on shear rheological test system. During test, breaking process specimens recorded digital image correlation system thermal infrared imager simultaneously. Therefore, strain...

Evaluation of the excavation-induced ground movements is an important design aspect of supporting system in urban areas. This evaluation process is more critical to the old buildings or sensitive structures which exist in the excavation-affected zone. Frame distortion and crack generation are predictor, of building damage resulted from excavation-induced ground movements, which pose challenges ...

In order to quantitatively describe the energy dissipation law of jointed rock mass, we obtained cores in laboratory conditions using marble from roof and floor Jinchanghe Lead–zinc mine Baoshan. The dissipative degree stress wave mass is measured by introducing quality factor Qs parameter. Based on experimental principle Split Hopkinson Pressure rod loading device (SHPB), proposed a three-wave...

A columnar jointed rock mass is a type of with strong geometric anisotropy and high interface permeability. Its seepage characteristics pose new challenges to the construction maintenance Baihetan Hydropower Station on Jinsha River. The research object in this study (basalt) dam area Station. Similar-material model samples different column dip angles ( <math xmlns="http://www.w3.org/1998/Math/M...

The fracture of interfacial crack is the main failure type jointed rock mass. Therefore, it very important to study For similarity mass and composites (all are composed by two parts, intact materials their contact interfaces), interface mechanics widely used for analysis (bimaterials) can be applied based on basic theories mechanics, was analyzed, one new criterion initiation proposed. Moreover...