Design of sheet-pile walls g Wales on the front face are somewhat easier to install but also require a hole through the wall for the anchor rod. Wales are usually made from a pair of back-to-back channels with spacing for the anchor rod.Sometimes a pair of I beams is used. The wales must be sufficiently rigid to transfer the anchor force laterally over the spacing s. The wales are assumed to carry a uniform load w of intensity,and we assume an approximate fixed end beam the bending moment at any anchor point is M=ws2/10 or M=ws2/12,usually the larger of the two approximations is used.Design of sheet-pile walls ❖ Wales on the front face are somewhat easier to install but also require a hole through the wall for the anchor rod. ❖ Wales are usually made from a pair of back-to-back channels with spacing for the anchor rod. Sometimes a pair of I beams is used. ❖ The wales must be sufficiently rigid to transfer the anchor force laterally over the spacing s. ❖ The wales are assumed to carry a uniform load w of intensity, and we assume an approximate fixed end beam the bending moment at any anchor point is M=ws2 /10 or M=ws2 /12, usually the larger of the two approximations is used