Research Article

Stability Assessment of Dangerous Rock Mass of an Overhanging Slope in Puerdu Town, Southwestern China

Table 4

Characteristic parameters of falling-type dangerous rocks.

Dangerous rock mass numberW1W3W4W6
Characteristic parameters

Weight per unit length (t)50.635.4258.0215.0
Dip angle of the fracture surface (°)89.080.087.074.0
Cohesive force of the rock mass (kPa)700.0700.0700.0700.0
Internal friction angle of the rock mass (°)31.931.931.931.9
Cohesion of structural planes (kPa)70.070.070.070.0
Internal friction angle of the structural plane (°)28.028.028.028.0
Equivalent cohesion (kPa)107.8164.5162.7107.1
Equivalent angle of internal friction (°)28.228.628.628.2
Earthquake force (kN)60.742.5309.6258.0
Normal force (kN)−51.919.64−174.2344.6
Tangential force (kN)506.9356.02592.62137.8