CAJ | 학술논문

本文以陕西关中地区离石黄土为研究对象，研制土体崩解实验仪器，进行室内小尺寸浸水实验，测定土体崩解过程中的各项参数，以探索该区域的离石黄土的崩解速率特性，为区域内离石黄土边坡失稳的时间预测研究提供参考。实验结果揭示了崩解过程中的一些现象和规律：（1）离石黄土在不同浸水条件下，整个崩解过程可分为从浸水开始－拟定浸水深度时的快速崩解阶段与浸水水位稳定后的趋稳崩解阶段。（2）黄土体崩解速率的大小与浸水深度、接触面关系密切，崩解速率与时间呈折线关系，从浸水开始拟定浸水深度，崩解速率出现峰值之后快速降低到0.21～0.25kg·min－1，直至浸水水位稳定后崩解速率稳定在0.08～0.14kg·min－1。（3）黄土试样浸水范围固定时，随着浸水深度的增加，土样的趋稳崩解速率线性增加，并呈现一定的线性相关性。
본문이협서관중지구리석황토위연구대상，연제토체붕해실험의기，진행실내소척촌침수실험，측정토체붕해과정중적각항삼수，이탐색해구역적리석황토적붕해속솔특성，위구역내리석황토변파실은적시간예측연구제공삼고。실험결과게시료붕해과정중적일사현상화규률：（1）리석황토재불동침수조건하，정개붕해과정가분위종침수개시－의정침수심도시적쾌속붕해계단여침수수위은정후적추은붕해계단。（2）황토체붕해속솔적대소여침수심도、접촉면관계밀절，붕해속솔여시간정절선관계，종침수개시의정침수심도，붕해속솔출현봉치지후쾌속강저도0.21～0.25kg·min－1，직지침수수위은정후붕해속솔은정재0.08～0.14kg·min－1。（3）황토시양침수범위고정시，수착침수심도적증가，토양적추은붕해속솔선성증가，병정현일정적선성상관성。
This paper examines the Lishi loess of Guanzhong region.It develops a soil disintegration test instrument for doing the flooding experiment of indoor small size.It measures soil disintegration process parameters to explore Lishi loess rate characteristics of disintegration in the region.It aims to offer a reference for time prediction of Lishi loess slope instability in the region.The results reveal some phenomena and laws of the disintegration process. Under different flooding conditions,the whole process of Lishi loess can be divided into rapid disintegration stage from the experiment beginning to formulate flooding depth and disintegration stabilization phase after flooding water. Loess body size has a certain relationship with rate of disintegration,the immersion depth and contact area.The rates of disintegration have broken line relationship with time.The disintegration rate is reduced rapidly to about 0.21 ~0.25kg·min-1 after a peak from the experiment beginning to formulate flooding depth.Then the disintegration rate is fixed in 0.08~0.14kg·min-1 until after flooding water stability.When loess sampling extent of flooding is fixed,with the increase of immersion depth,the stabilization of the soil disintegration rate increases linearly,and presents a linear correlation.