Study Of Multi-objective Decision On Anti-seepage Programs In Reinforcement Of The Earth-rock Dam

The safety of the dam in our country has become to be the colossal task, which is related tothe national economy and the people’s livelihood. In traditional selection methods ofanti-seepage programs in earth-rock dam reinforcement, people tend to be based on experienceor simple technical and economic comparison to determine the anti-seepage program, it isdifficult for them to get a scientific and objective result. This paper used the gray relationalanalysis and analytic hierarchy process which is used to determine the weights of the variousindicators to establish the decision index system and multi-objective decision model foranti-seepage technical program in earth - rock dam reinforcement. This makes the selectionmethods of anti-seepage technical program in earth - rock dam reinforcement more scientific.This article summarized and evaluated several anti-seepage programs which have beenwidely used in earth - rock dam reinforcement and have had a comprehensive understanding ofits engineering properties and applicable conditions, summed up anti-seepage programs for thefoundation, dam body, pipe&culverts binding site respectively. Considering the multi-objectivenature of the earth-rock dam reinforcement, establish cost indicator, quality indicator, durationindicator, construction safety indicator, construction ease indicator, environmental impactindicator of anti-seepage technical program in earth-rock dam, the decision indicator system iscomposed of six decision indicators. The quality indicator, construction safety indicator,construction ease indicator, environmental impact indicator is quantified by scoring fromexperts. These six indicators use analytic hierarchy process to determine the weight, and thenuse the gray relational theory to establish he multi-objective decision model for anti-seepagetechnical program in earth - rock dam reinforcement.Finally, this paper set GaoYuan reservoir which located in Qionghai, Hainan Province asan example to research multi-objective decision for anti-seepage technical program inearth-rock dam reinforcement, formed four options which combine foundation anti-seepage program with dam body anti-seepage program, used the multi-objective decision model foranti-seepage technical program in earth-rock dam reinforcement to verify its validity.This paper using multi-objective decision model for anti-seepage programs in earth-rockdam reinforcement conducted preliminary research and exploration, it provides a simple andeffective decision indicators system and decision methods for the future earth-rock damreinforcement, the study of multi-objective decision for anti-seepage programs in earth-rockdam reinforcement has important theoretical value and practical significance.