CAJ | 학술논문

传统的入渗模型未考虑坡角和降雨强度对滑坡入渗过程的影响，为了更好地描述黄土坡滑坡降雨入渗过程，在Green-Ampt 入渗模型的基础上推导了考虑坡体倾角和小降雨强度影响的降雨入渗模型。为了获取改进的入渗模型参数，在黄土坡滑坡1#崩滑体上进行了双环渗透试验与降雨、土的含水率和基质吸力现场监测。结果表明，黄土坡滑坡1#崩滑体饱和渗透系数为4.81×10-5 m/s；降雨时体积含水率增加，降雨停止后体积含水率降低，深部表现出一定的滞后特性；基质吸力变化趋势与体积含水率相反，降雨使其减小，降雨停止后逐渐增大。通过双环渗透试验与现场监测，获取了黄土坡滑坡降雨入渗模型参数值。将入渗模型计算值与现场监测数据进行对比，该模型计算值与现场监测数据吻合，说明该降雨入渗模型可用于黄土坡滑坡降雨入渗分析。
전통적입삼모형미고필파각화강우강도대활파입삼과정적영향，위료경호지묘술황토파활파강우입삼과정，재Green-Ampt 입삼모형적기출상추도료고필파체경각화소강우강도영향적강우입삼모형。위료획취개진적입삼모형삼수，재황토파활파1#붕활체상진행료쌍배삼투시험여강우、토적함수솔화기질흡력현장감측。결과표명，황토파활파1#붕활체포화삼투계수위4.81×10-5 m/s；강우시체적함수솔증가，강우정지후체적함수솔강저，심부표현출일정적체후특성；기질흡력변화추세여체적함수솔상반，강우사기감소，강우정지후축점증대。통과쌍배삼투시험여현장감측，획취료황토파활파강우입삼모형삼수치。장입삼모형계산치여현장감측수거진행대비，해모형계산치여현장감측수거문합，설명해강우입삼모형가용우황토파활파강우입삼분석。
The influences of slope angle and rainfall intensity on infiltration process of landslides are not considered in the traditional rainfall infiltration model. In order to describe the rainfall infiltration process of Huangtupo landslide better, an improved infiltration model considering the influence of slope angle and light rainfall intensity is deduced based on the Green-Ampt infiltration model. In order to obtain the parameters of the improved infiltration model, double rings infiltration tests, rainfall monitoring, water content and matric suction monitoring are conducted on the No. 1 slide of Huangtupo landslide. The results show that the saturated hydraulic conductivity of the rock falls of No. 1 slide of Huangtupo landslide is about 4.81×10-5 m/s;water content increases under continuous rainfall and decreases under the cessation of rainfall, and the effect of hysteresis occurs in the deeper soil;on the contrary, the matric suction decreases under continuous rainfall and increases under the cessation of rainfall. The parameters of the improved infiltration model of Huangtupo landslide are get. The results calculated from the improved infiltration model are very close to the data obtained from monitoring. Therefore, the improved infiltration model can be used to rainfall infiltration analysis on Huangtupo landslide.