STABILITY ANALYSIS OF THE PERMANENT SHIPLOCK SLOPES OFTHE TGP UNDER SEISMIC ACTION

摘要

The stability of the permanent shiplock slopes is among the key issues in the design and constructionof the Three Gorges Project. The attention of this paper is paid to the stability analysis of the permanentshiplock slopes under the seismic action. The seismic load is considered as a quasi-static force, and thestability analysis of the slopes is carried out by means of an upper bound limit analysis based on rigidelements. The problem of finding the minimum value of the critical seismic coefficient can be set up as alinear programming problem and solved by a revised simplex method.