ANSI ASCE EWRI 65-17 PDF下载

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ANSI ASCE EWRI 65-17 pdf download
Calculation of the Saturated Hydraulic Conductivity of Fine-Grained Soils
细粒土壤饱和水力传导度计算标 PDF下载
该标准由 ASCE 环境与水资源研究所(EWRI)编制,2017 年发布,主要内容包括:

适用范围
为细粒土(如粉土、黏土)提供一套基于一维固结试验数据计算 饱和水力传导系数 Ksat、渗透系数及孔隙率的统一方法。
计算原理
采用四步法:
利用分级加载固结试验获得应变-应力数据;
用一维竖向固结理论将 Ksat 与固结系数关联;
建立 Ksat 与渗透系数之间的换算关系;
通过土体孔隙比换算孔隙率。
输入与输出
输入:固结试验 e-log σ 曲线、荷载步级及时间-沉降读数。
输出:Ksat(m/s 或 cm/s)、渗透系数 k、孔隙率 n。
应用价值
可用于填埋场衬垫、堤防、路基及地下水污染防控等需要细粒土渗透参数的工程项目。

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