Model Test Research on Bearing Mechanism of Underreamed Ground Anchor in Sand

Figure 11

Graphics on the force distribution of the underreamed anchor embedded in 350 mm. (a) Resistance of every anchor part, with (i) total load, (ii) end bearing force, (iii) friction of the expanded section, and (iv) friction of the normal section. (b) The percentages of (v) /Q, (vi) /Q, and (vii) /Q. (c) The force distributions of (viii) the outer ring, (ix) the medium ring, and (x) the inner ring.

(a)

(b)

(c)