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通过接用黄土、粉煤灰等低廉胶凝材料，实现低廉胶结充填，达到减少水泥用量、降低胶结充填成本的目的。建立了试验指标回归方程，得出了黄土、粉煤灰最佳掺量。
Through the use of loess, fly ash and other low-cost cementitious materials to achieve low-cost cement filling, to reduce the amount of cement, reduce the cost of cementing and filling purposes. The regression equation of experimental index was established, and the best content of loess and fly ash was obtained.