Disturbance Effect of Pipe Jacking Group Adjacent Excavation on Surrounding Soil

Figure 4

Schematic diagram of lateral disturbance range of three-hole pipeline jacking. (a) The third hole is located on the outside of the previous two holes and the center spacing is large. (b) The third hole is located on the outside of the previous two holes and the center spacing is small. (c) The third hole is located in the middle of the previous two holes and the center spacing is large. (d) The third hole is located in the middle of the previous two holes and the center spacing is small.

(a)

(b)

(c)

(d)