Abstract:

The construction and operation of the first phase project of No. 1 line of Chasha Metro may have potential impact on Baisha ancient well. The natural forming conditions of Baisha well, the distribution scope of the aquifer, the characteristics of recharge, drainage and run-off, the rule of the dynamic variations of ground water, the correlation between the Metro alignment and the underground run-off and the influence of dewatering and Metro alignment on the flow field of ground water are studied on basis of analysis on the geological structures, hydrogeology, engineering geology and construction methods along the first phase project of No. 1 line of Chasha Metro. Furthermore, prevention and control measures are proposed. The paper can provide reference for the construction of the project and for the protection of Baisha ancient well.

Key words: Metro, groundwater environment, Baisha ancient well