PS Sections Steel Sheet Piling

Calculation for Straight web sheet piles is performed using traditional earth pressure distribution method without considering displacement of anchor point or re-Calculation for Straight web sheet piles is performed using traditional earth pressure distribution method without considering displacement of anchor point or re-distribution of earth pressure. The calculated maximum bending moment value of hot rolled steel sheet pile could be reduced by 1/3 or multiplied by a reduction coefficient of 0.7~0.8, and the result may be taken as standard value of bending moment of sheet pile cofferdams.

However, no reduction is allowed under the following circumstances:
(1) Straight web sheet pile is furnished with no pull rod; or the weak anchorage of pull rod may result in displacement while pile toe is built in earth; in such a state of affairs, no re-distribution of earth pressure will occur;
(2) Behind the wall is unconsolidated clay soil;
(3) The earth behind wall does not reach the elevation of anchoring pull rod;
(4) The earth behind the hot rolled steel sheet pile from harbor basin to anchorage system is backfilled earth;
(5) Reinforced concrete sheet pile wall with relatively high rigidity

The so-called reinforced concrete sheet pile wall with relatively high rigidity should have a rigidity per linear meter n>0.06; in such a case, sheet pile wall shall be taken as free end bearing beam for calculation, and the obtained sheet pile bending moment shall not be reduced. If n≤0.06, it is suggested sheet pile wall should be regarded as flexible wall and deemed to have been built or semi-built in earth. Rigidity per linear meter is given by the following equation:

PS straight web sheet piles are normally used for cofferdams in America. While in other areas, Arcelor's AS sheet piles are more popular

PS Sheet Piling Catalog