Narrow strip foundation pits,represented by pipe galleries and subways,generally do not conform to the assumption of semi infinite soil mass.However,the current standard calculation methods are still used for support structure design,which tends to be too conservative.In the article,factors affecting the width of the foundation pit were considered,and the calculation method for the safety factor of anti overturning stability of narrow strip foundation pits was improved.The modification method was used to optimize the support structure of a certain pipe gallery foundation pit project.ABAQUS fin...
