宁东粉细砂的物理力学特性分析

Analysis of Physico-mechanical Characteristics of Fine Sand in Ningdong Rigion

在水软化作用下,宁夏宁东地区的粉细砂的物理力学与水理性质呈现出明显的规律性。而且湿陷性是宁东粉细砂水敏感性特征的重要表现。在大量宁东粉细砂试验资料的基础上,对宁东粉细砂的工程地质特征进行了系统研究,重点论述了宁东粉细砂的物理特性和湿陷性的变化规律,提出了宁东粉细砂的一些临界指标参数。

Ningdong fine sand is a special water content sensitive geological deposit, of which the physico-mechanical and hydraulic properties change with obvious patterns under the softening action of water, collapse is the most important side of its sensitivity. According to the results of Ningdong fine sand tests in laboratory and in-situ, we study the geotechnical properties. Some laws of physical properties and collapse properties of Ningdong fine sand are discussed emphatically