CAJ | 학술논문

坝料渗透特性是土石坝渗流计算分析的重要参数。土石坝采用当地材料进行筑坝，是“就地取材”较为经济坝型，筑坝材料的性能决定坝型的选择与确定，挡水建筑物的关键是防渗，筑坝材料的渗透性是决定坝型选择的关键和主要因素之一。通过对当地材料粉土质砂掺入一定量的泥岩以提高粉土质砂的防渗性能，解决粉土质砂渗透系数大而不能满足规范对筑坝材料的要求的问题。对不同泥岩掺量的粉土质砂进行渗透系数的试验研究，确定了最佳泥岩掺量。
패료삼투특성시토석패삼류계산분석적중요삼수。토석패채용당지재료진행축패，시“취지취재”교위경제패형，축패재료적성능결정패형적선택여학정，당수건축물적관건시방삼，축패재료적삼투성시결정패형선택적관건화주요인소지일。통과대당지재료분토질사참입일정량적니암이제고분토질사적방삼성능，해결분토질사삼투계수대이불능만족규범대축패재료적요구적문제。대불동니암참량적분토질사진행삼투계수적시험연구，학정료최가니암참량。
The permeability of dam material is an important factor for the seepage calculation of earth-rock dam. The earth-rock dam is an economic dam type constructed with the local materials, which could decide the selection and definition for dam types. The key of water retaining structure is seepage control, so the permeability of dam-building material is the key and one of main factors which could decide the selection for dam types. Through admixing the mudstone for a certain quantity into the local silty sand to increase its permeability, the problem could be solved that the permeability coefficient of the silty sand is great not to meet the requirments for dam-building material in standard. The optimum mudstone admixture quantity is determined here through the experimental study on the permeability coefficient of the silty sand under different mudstone admixture quantity.