An improvement of general design methods for lock castle structures

摘要

Longitudinal cracks often appear on the top of the large locks' floor built on soft foundations, but the cause can't be explained by general design methods. Based on the simulation of lock's construction and clay's consolidation, the paper analyses the evolution process of the floor stress, and find the regular pattern of stress change over the time, then improves general design methods by omitting the floor's deadweight when calculating the negative moment. The conclusion serves as a reference for the design and the construction of similar projects.