The paper discusses variety of causes for concrete pier base cracks and puts forward solving methods for maintenance and reinforcement.

The paper introduced type of level force of flexible pier base, how to calculate perfect temperature force, brake force, how to analyze non-perfect condition, and the noticed problems in the design.

Sanya has piers necessary to base a far larger force of surface warships, a new large pier, and many new housing and headquarters buildings in this attractive resort area.