outward, and the shear stress decreases gradually, and the distribution area
becomes larger and larger. On the contrary, the shear stress of the soil at the
bottom of the pile is not large, 17:7 MPa, and there is no obvious change in the
Y-direction.
(4) Figures 12.40, 12.41 and 12.42 show the horizontal strain contour, the vertical
strain contour and the equivalent strain contour, respectively. From the strain
contour diagram, it can be seen that: As shown in Fig. 12.40, in the direction of
horizontal strain X, the large strain region appears in the soil around the pile
body. The strain of pile tip and soil surface near pile body is the largest,
reaching 0.31. The strain gradually diffuses outward from the core of the area,
and the minimum value is 0.016. As shown in Fig. 12.41, in the vertical strain
Y-direction, the maximum strain appears in the soil around the pile body nearest
to the ground. It can be seen that it is also the area with the largest deformation,
and its value is 0.043. The maximum strain in the opposite direction appears in
the soil at the bottom of the pile, and its value is 0.099. As shown in Fig. 12.42,
on the contour map of total strain, the maximum strain of the soil penetrating
around the pile body is 0.47. The sub-large strain area is the soil around the pile
body, and its value is about 0.26. With these two parts as the core, the strain
gradually diffuses outward and decreases.
Fig. 12.39 Shear stress contour map
12.5 Contact Model Pile and Soil
317
becomes larger and larger. On the contrary, the shear stress of the soil at the
bottom of the pile is not large, 17:7 MPa, and there is no obvious change in the
Y-direction.
(4) Figures 12.40, 12.41 and 12.42 show the horizontal strain contour, the vertical
strain contour and the equivalent strain contour, respectively. From the strain
contour diagram, it can be seen that: As shown in Fig. 12.40, in the direction of
horizontal strain X, the large strain region appears in the soil around the pile
body. The strain of pile tip and soil surface near pile body is the largest,
reaching 0.31. The strain gradually diffuses outward from the core of the area,
and the minimum value is 0.016. As shown in Fig. 12.41, in the vertical strain
Y-direction, the maximum strain appears in the soil around the pile body nearest
to the ground. It can be seen that it is also the area with the largest deformation,
and its value is 0.043. The maximum strain in the opposite direction appears in
the soil at the bottom of the pile, and its value is 0.099. As shown in Fig. 12.42,
on the contour map of total strain, the maximum strain of the soil penetrating
around the pile body is 0.47. The sub-large strain area is the soil around the pile
body, and its value is about 0.26. With these two parts as the core, the strain
gradually diffuses outward and decreases.
Fig. 12.39 Shear stress contour map
12.5 Contact Model Pile and Soil
317