中文摘要：

在那里存在在 Dadu 河的山谷的许多 fluvio 冰川的存款，西南中国，它始于更新世。当一些存款位于水库的季节的水变化地区以内，地下水的渗出物充当影响他们的稳定性的关键因素之一。因此，进沉积性质和渗透的调查为评估沉积稳定性是关键的。在这研究，在原处，渗透和 sieving 测试被执行了决定谷物尺寸分发，渗透的关联和水力的坡度，和在渗透和沉积性质之间的关系。测试结果显示存款主要由沙，石子，卵石和大石头组成，并且罚款的百分比是不到 5% 。沉积有高密度，低孔和自然潮湿内容。在低水力的坡度，渗出物速度遵守 Darcys 法律，当 non-Darcy 渗透与超过某个价值(大约 0.50.7 ) 的水力的坡度被观察时。线性渗透系数从 0.003 ～ 0.009 cm/s 。渗出物失败发生在在 1.1 和 1.5 之间的阀值上面。测试数据适合很好，非线性的渗透方程由 Forchheimer 和 Izbash 建议了。non-Darcy 渗透证明根据 Izbash 与大约 0.60.7 的力量 m 建议的渗出物方程。学习存款的谷物尺寸在在 0.024 和 0.031 公里之间的一个狭窄的范围被发现的特征，它是大部分比有效谷物尺寸降低(d 10 ) 。

英文摘要：

There exist many fluvio-glacial deposits in the valley of Dadu River, Southwest China, which dates back to the Pleistocene. As some of the deposits are located within the seasonal water fluctuation zone of reservoirs, the seepage of groundwater acts as one of the key factors influencing their stability. Investigation into the sediment properties and permeability is, therefore, crucial for evaluating the sediment stability. In this study, in-situ permeability and sieving tests have been carried out to determine grain size distribution, correlations of permeability and hydraulic gradients, and relations between permeability and sedimentation properties. Test results indicate that the deposits are composed mostly of sands, gravels, cobbles and boulders, and the percentage of fines is less than 5%. The sediments have high densities, low porosities and natural moisture contents. At low hydraulic gradients, the seepage velocity obeys the Darcy＇s law, while a non- Darcy permeability is observed with hydraulic gradient exceeding a certain value （about 0.5 - 0.7）. The linear permeability coefficient ranges from 0.003 to 0.009 cm/s. Seepage failure occurs above a threshold between 1.1 and 1.5. The test data fit well with the non-linear permeability equations suggested by Forchheimer and Izbash. The non-Darcy permeability proves to be in accordance with the seepage equation suggested by Izbash with the power ＇m＇ of about 0.6 - 0.7. The characteristic grain sizes of the studied deposits are found in a narrow range between 0.024 and o.o31 mm, which is much lowerthan the effective grain size （dlo）.