CAJ | 학술논문

首先分析了湿陷性黄土的结构性特征和湿陷特征，以某湿陷性黄土路基工程为例进行试验，得出不同饱和度条件下黄土的湿陷规律，并分析了湿陷前后黄土的微观结构。X 能谱分析结果表明：湿陷性黄土中的胶结物类型主要是 Fe的倍半氧化物、黏土性矿物，其次为碳酸钙。固结试验结果表明：随着压力的增加，土体的湿陷系数先增大后降低，300 kPa时的湿陷系数能实际反应土体的湿陷性特征。微观试验结果表明：黄土湿陷后的结构重新排列，颗粒之间的接触性连接和胶结性连接发生变形，微孔隙越大，湿陷性越强。
수선분석료습함성황토적결구성특정화습함특정，이모습함성황토로기공정위례진행시험，득출불동포화도조건하황토적습함규률，병분석료습함전후황토적미관결구。X 능보분석결과표명：습함성황토중적효결물류형주요시 Fe적배반양화물、점토성광물，기차위탄산개。고결시험결과표명：수착압력적증가，토체적습함계수선증대후강저，300 kPa시적습함계수능실제반응토체적습함성특정。미관시험결과표명：황토습함후적결구중신배렬，과립지간적접촉성련접화효결성련접발생변형，미공극월대，습함성월강。
This article firstly analyzed the structural characteristics and collapsible characteristics of collapsible loess.It took a collapsible loess subgrade project in Shanxi as an example to carry on ex-periment arrived at the collapsibility law in different saturation conditions,and analyzed the loess micro-structure before and after collapsible.X energy spectrum analysis results showed that:The mainly col-lapsible loess types of cement are Fe sequins-oxide,clay minerals sex,and followed by calcium carbon-ate.Consolidation test results showed that:The collapsible coefficient first increases and then decreases with the pressure increasing.The collapsible coefficient in 300 kPa can reflect the actual collapsible characteristics of soil.Microscopic test results showed that:The structure of collapsible loess rearrange and cause deformation of the contact connection and cementation connects between particles.The larger micro-porosity is,the stronger collapsible will be.