CAJ | 학술논문

通过概化金沙洲地区的水文地质条件建立了地下水系统的概念模型，然后在地下水数值模拟FEFLOW 软件的支持下，建立了研究区的地下水流数值模拟模型。模拟结果表明：施工降水期间，地下水的流动方向由四周向施工降水中心流动，形成以施工抽水点为中心的降落漏斗，地下水位变化明显，与发生在模拟区内的地面塌陷和地面沉降地质灾害在时间和空间上具有对应性。基于此模拟结果，应严格控制金沙洲区域的工程活动施工降水强度，以有效防止地面塌陷及地面沉降地质灾害的发生。
통과개화금사주지구적수문지질조건건립료지하수계통적개념모형，연후재지하수수치모의FEFLOW 연건적지지하，건립료연구구적지하수류수치모의모형。모의결과표명：시공강수기간，지하수적류동방향유사주향시공강수중심류동，형성이시공추수점위중심적강락루두，지하수위변화명현，여발생재모의구내적지면탑함화지면침강지질재해재시간화공간상구유대응성。기우차모의결과，응엄격공제금사주구역적공정활동시공강수강도，이유효방지지면탑함급지면침강지질재해적발생。
The paper establishes a concept model of the groundwater system in Jinshazhou area by generalizing its hydro-geological conditions, and then, builds a numerical simulation model of groundwater flow with the help of FEFLOW software. The simulation result shows that groundwater flows from the surroundings to the center during the process of lowering groundwa-ter level, and forms a cone of depression whose core is the location of the pump. The variation of groundwater level is signifi-cant and consistent with the occurrence of land subsidence and geological disasters both in time and space. The result indicates that pumping intensity should be strictly controlled to prevent land subsidence and other geological disasters.