CAJ | 학술논문

针对垃圾填埋场压实黏土封场系统在干旱与半干旱地区出现的干燥开裂的问题，基于流体动力学流动方程，建立了多孔介质不连续裂缝中水流流动数学模型，采用COMSOL模拟开裂黏土水渗流规律。数值模拟计算结果表明，流体的压强所出现的最大值和最小值分别出现在入口和出口的边缘处，流体在裂缝中流速较大的区域主要分布在水流的入口和出口处的边缘，越靠近裂缝的两端，裂缝中的流体的运动状态与基质中的流动状态差异性越大。
침대랄급전매장압실점토봉장계통재간한여반간한지구출현적간조개렬적문제，기우류체동역학류동방정，건립료다공개질불련속렬봉중수류류동수학모형，채용COMSOL모의개렬점토수삼류규률。수치모의계산결과표명，류체적압강소출현적최대치화최소치분별출현재입구화출구적변연처，류체재렬봉중류속교대적구역주요분포재수류적입구화출구처적변연，월고근렬봉적량단，렬봉중적류체적운동상태여기질중적류동상태차이성월대。
Aiming at the problem that the landfill compacted clay cover system is vulnerable to appear desiccation cracking in drought or semi-arid area, based on the Hydrodynamic flow equation, simulate to analyze the mathemat-ical model of water flow in discontinuous cracks in the porous medium, simulate the water seepage rule in crack clay by COMSOL.Based on the results of mathematical simulation, the maximum and minimum values of fluid pressure appear in the inlet and outlet edges, the large area of flow velocity in fluid appear in the inlet and outlet edge in the flow, and closer to the end of cracks, greater the difference in state of motion in fracture fluid and cur-rent state of the matrix.