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应用水库不平衡输沙泥沙数学模型，对小江大防护工程中不同运用年限的小江水库泥沙淤积量、淤积部位、淤积后不同洪水频率的洪水位抬高值等问题进行了计算研究；同时研究了三峡水库上游干支流建库及不建库情况下三峡水库泥沙淤积对小江下游水位的影响，计算分析了不同宋沙量的小江水库泥沙淤积及水位变化；对小江上游4座支流水库泥沙淤积也进行了计算分析；最后研究了小江大防护工程防沙减淤措施。这些大量的计算研究，曾为三峡库区小江大防护工程的规划设计提供了重要的科学依据。
Applying the mathematical model of sediment transport in unbalanced sediment transport in reservoirs, this paper studies the sediment deposition in Xiaojiang reservoir with different service life, the siltation site and the flood elevation at different flood frequency after sedimentation. At the same time, The influence of sediment deposition of the Three Gorges Reservoir on the water level in the lower reaches of the Xiaojiang River under the reservoir construction of the upper reaches of the Three Gorges Reservoir and the reservoir without reservoirs was analyzed. Sediment deposition and water level changes of the Xiaojiang Reservoir with different amounts of Songsha were calculated and analyzed. Sedimentation of the reservoir has also been calculated and analyzed. Finally, the sand prevention and siltation reduction measures of Xiaojiang Large Protection Project have been studied. These large numbers of computational studies have provided an important scientific basis for the planning and design of the Xiaojiang Great Wall Protection Project in the Three Gorges Reservoir Area.