沉井施工降水时地下水的动态分析

Dynamic Analysis on Groundwater during Precipitation of Construction for Open Caission

以泰州长江大桥北锚碇(沉井)周边为研究区,根据地质资料、边界条件和各源汇项,采用网格法与概念模型联合建模的思想,用地下水模拟软件GMS对研究区地下水水流进行数值模拟,预测了北锚碇施工期的涌水量和地下水位的动态变化,计算结果与工程实际相吻合。

Taking the north anchorage （caisson） and its surrounding area of Taizhou Yangtse Rive Bridge as the study area, the model is built according to the geologic data, border conditions and various source-sink items and combining the grid approach with conceptual model approach, and the groundwater simulation software GMS is used to simulate the groundwater flow in the area, and predict the discharge and the trend of groundwater level in the construction period. The result tallies with the actual project.