Influence of anchor inclination and length on the stability of excavated roadbed slopes reinforced with anchors
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This study investigates the influence of anchor angle and anchor length on the stability of roadbed slopes. The study is based on a cut slope with height H=21 meters, divided into three levels and considering three different geological configurations. Two slope ratios are analyzed: 1:0.5 and 1:0.75. Conventional steel anchors are used and the theoretical basis is the numerical method. The stability of the slope is analyzed using FLAC software with the theoretical basis of the finite difference method. The study determines the optimal anchor angle by evaluating the range from 20°, 25°, 30°,..., 50°. The study also compares two reinforcement scenarios: 9 anchors with a length of 8 meters and 6 anchors with a length of 10 meters, to determine the most reasonable configuration. In addition, the critical sliding surface corresponding to each optimal anchor angle is determined.
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