长沙某地铁工程对白沙井影响的研究

自沙井是长沙市轨道交通1号线建设过程中必须重点保护的国家一级文物，评价地铁建设对白沙井水文地质环境条件的影响，将在一定程度上决定1号线的线路走向与施工方法．综合多种资料，初步分析了白沙井水源补给的边界、补给介质与泉井类型，并结合长沙市轨道交通1号线的规划设计，重点分析了城南路站、侯家塘站、南湖路站及其区间对白沙井水源、水质的影响；明确指出因侯家塘站切割白沙井补给含水层，应进行专门性评价；并根据既有的地下水示踪试验成果及其他相关的钻探、物探及地下水位测试成果，采用加拿大Waterloo大学的三维地下水流动数值模拟软件-VisualModflow模拟白沙井处天然径流场，进一步分析了拟建侯家塘站对白沙井影响，并提出了设计与施工中最大程度保护白沙井的方案和建议．

The effects of Changsha subway project to Baisha well

Baisha well as first-level national protection cultural relic must be protectedwhen constructing Changsha City Subway Line 1. Evaluation of the effects of Subway Line 1 on Baisha well will make the road route and construction method of Subway Line 1 be adopted. By integrating multiple information, this article preliminary analyzes Baisha well~s supply boundary, supply medium and springs type. Combined with the first phase of planning and design for Changsha city subway Line 1, the effects of Chengnanlu station, Houjiatang station, Nanhulu station and its interval on water source, water quality are analyzed, and can cut Baisha well＇s aquifer recharge, which should be performed in specialized evaluation. According to the existing groundwater tracer test results and other relevant drilling, geophysical exploration and underground water level test results, using Waterloo Canadian university three-dimensional groundw- ater flow numerical simulation software, Visual Modflow, analog Baisha well natural runoff field is considered. The influence of Houjiatang station on Baisha well to be con- structed is further analyzed influence of Baisha well, and how the design and construc-tion of well protected Baisha well is recommendations to the greatest extent.