CAJ | 학술논문

水文地质参数在含水层压密过程中不断变化，这是诸多地面沉降模型实际应用中的难点之一。就含水层压密对水文地质参数的影响开展了初步的实验，结果表明，压密前后含水层的渗透系数和给水度发生了较大的变化。其中：渗透系数随模拟含水层介质压密过程的变化几乎呈线性的减小趋势，线性拟合决定系数为0．9592～0．9971；给水度随着含水层的压实而表现出下降的趋势较为复杂，随介质类型的不同而有差异。渗透系数和给水度的下降速度在不同介质中也有一定的差异。在本研究的实验模型尺度下，给水度和渗透系数呈现一定的线性正相关关系，一次线性相关函数斜率为0．0013～0．0051，截距为0．0116～0．0381，基本相近且在相同数量级。
수문지질삼수재함수층압밀과정중불단변화，저시제다지면침강모형실제응용중적난점지일。취함수층압밀대수문지질삼수적영향개전료초보적실험，결과표명，압밀전후함수층적삼투계수화급수도발생료교대적변화。기중：삼투계수수모의함수층개질압밀과정적변화궤호정선성적감소추세，선성의합결정계수위0．9592～0．9971；급수도수착함수층적압실이표현출하강적추세교위복잡，수개질류형적불동이유차이。삼투계수화급수도적하강속도재불동개질중야유일정적차이。재본연구적실험모형척도하，급수도화삼투계수정현일정적선성정상관관계，일차선성상관함수사솔위0．0013～0．0051，절거위0．0116～0．0381，기본상근차재상동수량급。
Land subsidence,accompanied by the aquifer media compaction process,is a large global sphere of influence and multiple geological disasters,which is one of the key triggers that lead to hydrogeological parameter spatial variability and loss. And this variability is the real application bottlenecks to many land subsidence model.Based on the above,the authors designed a preliminary experiment on the impact of aquifer characteristics parameter caused by land subsidence.The results indicated that aquifer hydrogeological parameters,especially hydraulic conductivity and specific yield, changed significantly before and after compaction process.Hydraulic conductivity showed near-linear decreasing trend with R 2 between 0.959 2 and 0.997 1 as the aquifer media compaction process,while specific yield was in significant differences on complex decline trend besides the sharp decreasing process.Hydro-geological characteristics showed dramatic variability because of the aquifer media characteristics and its scale effects.There were certain linear features between hydraulic conductivity and specific yield in the case of model test scale,with linear correlation function slope of 0.001 3 0.005 1 and intercept of 0.011 6 0.038 1,which were basically similar and in the same order of magnitude.