by using wind-blown soil, fly ash, clay, a small amount of cement and addition agent as raw materials in this paper, the optimum dispensation formula and spreading theory about filling and pre-grouting of composite filling material were studied to have important practical significance to large filling and pre-grouting project 本文利用風(fēng)積土、粉煤灰、粘土、少量水泥和其它外加劑為原材料,研究復(fù)合充填注漿材料的最佳配比及其擴(kuò)散充填注漿理論,對于大型充填注漿工程具有重要的現(xiàn)實(shí)意義。