Search
Now showing items 1-8 of 8
Analysis of Seismic Waves Propagating through an In Situ Stressed Rock Mass Using a Nonlinear Model
Publisher: ASCE
Abstract: In situ stress is a significant characteristic of underground rock masses. This work extended the time-domain recursive method (TDRM) to study oblique wave attenuation across an in situ stressed joint wherein the normal ...
Numerical Study of P-Waves Propagating across Deep Rock Masses Based on the Hoek–Brown Model
Publisher: ASCE
Abstract: Strong dynamic disturbances constitute an important problem threatening the safety of deep underground engineering projects. The mechanical mechanisms responsible for such disturbances in deep rock masses can be revealed ...
Limit-Equilibrium Analysis of Stability of Footwall Slope with Respect to Biplanar Failure
Publisher: ASCE
Abstract: Biplanar failure is the most common instability type of footwall slopes, with a steeply dipping joint (typically the bedding plane) and a gently dipping joint (i.e., the daylighting toe joint) forming the basic failure ...
Analysis of Stability of Concealed Cataclinal Slopes with Talus Deposits Accumulated at Their Toes with Respect to Biplanar Failure
Publisher: ASCE
Abstract: Talus deposits naturally form to a certain height in the toes of slopes because of the accumulation of collapsed material and small landslides. However, the stability of concealed cataclinal slopes with talus deposits ...
Assessing the Stability of Dip Slopes Based on Analyzing the Stress at a Key Point on the Sliding Surface
Publisher: ASCE
Abstract: Dip slopes are often encountered in deep-cut canyons and engineering projects. Such slopes, when they become unstable, commonly undergo bi-planar failure, and this mode of failure tends to produce the widest-ranging effects. ...
Stability Assessment of Bolt-Supported Road Cutting Dip Slopes Using Discrete-Element and Limit-Analysis Methods
Publisher: ASCE
Abstract: Fully grouted bolts are widely used to reinforce road cutting slopes because of their low cost and high efficiency. However, there is a lack of research on the anchorage failure mechanism and stability assessment of ...
Catastrophe Instability Mechanism of the Pillar-Roof System in Gypsum Mines Due to the Influence of Relative Humidity
Publisher: American Society of Civil Engineers
Abstract: In this study, a simplified mechanical model is proposed based on the failure characteristics of a gypsum pillar–roof system obtained through in situ investigation. Then, a cusp catastrophe model for the gypsum pillar–roof ...
Time-Dependent Ground Movement Behavior in a Metal Mine
Publisher: American Society of Civil Engineers
Abstract: The deformation monitoring data including the horizontal and vertical displacements from Chengchao Iron-ore Mine were gathered over 10 years. Combined with the field macrofailure characteristics at the ground surface, the ...