地下水开采与地面沉降的三维模拟研究

Three-dimensional Simulation Study on Groundwater Exploitation and Ground Subsidence

地下水开采与地面沉降的二维模拟方法在实际应用中存在定位偏差,导致无法完成实际地面沉降预测。因此,有必要研究地下水开采与地面沉降的三维模拟方法。本文通过对地下水开采区域的土体沉降负荷计算,确定土体沉降三维有效元数值,并计算其沉降有限差分值,完成受地下水开采影响的地面沉降三维情况模拟。同时,设计对比试验,对比三维模拟与灰度模型的实际应用效果,证明研究有效性。

The two-dimensional simulation method of groundwater extraction and land subsidence has positioning deviation in practical applications,which makes it impossible to complete the actual land subsidence prediction.Therefore,it is necessary to study the three-dimensional simulation method of groundwater exploitation and land subsidence.In this paper,by calculating the soil settlement load in the groundwater mining area,the three-dimensional effective element value of the soil settlement was determined,and the finite difference value of the settlement was calculated to complete the threedimensional simulation of the ground settlement affected by the groundwater mining.At the same time,a comparative experiment was designed to compare the actual application effects of three-dimensional simulation and grayscale model to prove the effectiveness of the research.