# The Bearing Characteristics of Sand Anchors under Vibrating Load
## 3 Results and Analysis
### Study on the Bearing Characteristics of Anchor Rods under a Vibration Load
#### 3.2.1 Effect of Water Content on Bearing Capacity of Anchor Rods under Vibrating Load  
Figure 10 shows the anchor-bearing capacity-displacement curve under vibration loads with different sand moisture contents of the same diameter. The tests mainly used anchor solids with diameters of 60 mm, 80 mm, and 100 mm to vary the moisture content of sandy soil under the same vibration frequency vibration load, and three main sandy soil moisture contents of 10%, 12%, and 14% were set. To keep the vibration frequency consistent, the vibration frequency was set to 5 Hz when the vibration load was applied. Figure 8: Soil surface damage shape. Figure 9: Schematic diagram of vibration load loading. The diameter of the anchor solid is 60 mm, and the moisture content of the sand is 10%. First, the anchor was loaded at a rate of 6 mm/min to 65% of the ultimate pullout capacity (F1) under static anchor load, and this load value was approximately 0.85 kN, and it was the peak value of this vibration load. The valley value is 35% of the ultimate pullout bearing capacity under the static load of the anchor, and the value of this load is approximately 0.46 kN. The amplitude of the vibration load is 30% F1, and its value is approximately 0.39 kN. The average load is 50% F1, and the number of vibrations is 1000. As seen in Figure 10a, the anchor solid displacement has a large sudden change and rapid growth and has reached the fatigue failure state. Repeating the above steps, vibratory loads are 1000 times higher than the average load. The average load is 1000 times higher than the average load. were applied to the sand specimens with 12% and 14% moisture content. The anchor solids have reached the fatigue failure state under this vibration load condition. The diameter of the anchor solid is 80 mm, and the moisture content of the sand is 10%. First, the anchor was loaded at a rate of 6 mm/min to 65% of the ultimate pullout capacity (F1) under static anchor load, and the value of this load was approximately 1.03 kN, and it was the peak value of this vibration load. The valley value was 35% of the ultimate pullout capacity under static anchor load, and the value of this load was approximately 0.56 kN. The amplitude of the vibration load was 30% F1, and its value was approximately 0.48 kN. The average load was 50% F1, and the number of vibrations was 1000. As seen in Figure 10b, the anchor solid produced a displacement of 0.59 mm at the initial stage of loading, which is a small displacement. After the application of the vibration load, the anchor solid produced an upward displacement of approximately 2 mm, and it did not fail. At a later stage of destructive testing, the anchor solid produced a displacement of 2.8 mm, and its remaining bearing capacity was approximately 1.13 kN, which is a 28.9% reduction in bearing capacity. The above operation was repeated, and vibratory loads were applied to the sand specimens with 12% and 14% moisture content. The anchor solids reached the fatigue failure state under this vibration load condition. The diameter of the anchor solid is 100 mm, and the moisture content of the sand is 10%. First, the anchor was loaded at a rate of 6 mm/min to 65% of the ultimate pullout resistance (F1) under static anchor load, and the value of this load was approximately 1.22 kN, which was the peak of this vibration load. The valley value was 35% of the ultimate pullout resistance  
In the state of sand soil moisture content of 10%, the first loading takes place at the rate of 6 mm/min to 65% of the ultimate pullout resistance (F1) under the action of anchor static load. This load value is approximately 1.22 kN, which is the peak of this vibration load; the valley value is 35% of the ultimate pullout resistance under the action of anchor static load, which is a load value of approximately 0.66 kN; the amplitude of the vibration load is 30% F1; its value is approximately 0.56 kN; the average load is 50% F1; and the number of vibrations is 1000.