本研究以南投縣仁愛鄉濁水溪山區、台中市谷關大甲溪山區所取樣之崩積土及南投縣仁愛鄉霧社水庫所取樣之水庫淤積土,在不同水灰比與齡期進行各項工程力學試驗,依其結果進行綜合性比較分析,由本研究結果得知,使用崩(淤)積土之非制式混凝土於水灰比0.5、1.0及1.5時,其齡期28天之抗壓強度分別可達標準混凝土之10%~66%(30.7kg/cm2~193.6kg/cm2)(仁愛鄉崩積土組)、15%~89%(62.8kg/cm2~368.7kg/cm2)(谷關崩積土組)及11%~85%(49.8kg/cm2~388.7kg/cm2)(仁愛鄉淤積土組),本研究結果認為使用天然崩(淤)積土之非制式混凝土可供工程實務應用,建議使用於當地重力式擋土牆、路基回填材料、各式構造物背(回)填材料、路寬4M以下產業道路、農路之剛性路面、廣場、人行道舖面及控制性低強度材料(CLSM)。如此,方能實現天然崩(淤)積土材料再利用,並能降低工程建造成本及解決天然崩(淤)積土去處問題,且能減輕土石清理及水庫清淤經費支出。
In this study, Nantou County LTK mountains, and Taichung District Tachiachi mountain valley of the Collapse (Silt) soil sampling, and the Nantou County Wushe reservoir sampling of the soil reservoir sedimentation, in different water-cement ratio and age for each project mechanical test. According to their comprehensive comparative analysis of the results from this study, indicate that using collapse (silt) fill in the non-standard concrete water-cement ratio of 0.5, 1.0 and 1.5, its age of 28 days compressive were up to standard concrete strength of 10% ~ 66% (30.7kg/cm2 ~ 193.6kg/cm2) (Renai Township colluvium group), 15% ~ 89% (62.8kg/cm2 ~ 368.7kg/cm2) (Gu Customs colluvium group) and 11% ~ 85% (49.8kg/cm2 ~ 388.7kg/cm2) (Renai Township alluvial soil group). The study concluded that the use of natural collapse (silt) non-standard concrete fill available engineering practical application. It is recommended to use the local gravity retaining wall, backfill material, all kinds of structures dorsal (back) fill material, the following industries 4M lane roads, farm roads of rigid pavements, squares, sidewalks and pavement controlled Low strength material (CLSM). To do so, it can achieve a natural collapse (silt) fill material reuse, and reduce construction costs and solve engineering natural collapse (silt) fill spot problems, and can reduce the debris clearance and reservoir dredging expenditures.