深圳地铁11号线地下水侵蚀性统计分析

Analysis on Statistics of Groundwater Corrosion in Shenzhen Metro Line 11

深圳地铁11号线地处深圳市西部滨海地区,其绝大部分邻近海岸或通过填海区,前期勘察过程中发现该地区地下水具有较强的腐蚀性.对全线30个工点627个地下水水质分析样本进行统计,得到该线路地下水腐蚀强弱分布状态,结合线路通过区的地理位置和地下水环境进行分析,得出:深圳地铁11号线地下水的腐蚀性与其所处的海岸地理位置及穿越填海区密切相关.该研究为滨海城市海水入侵区地铁线路地下水腐蚀性评价提供指导.

Shenzhen metro line 11 is located in the western coastal area of Shenzhen,most of which is adjacent to the coast or through reclamation area.In the process of the pre-survey,groundwater with strong corrosion in the area had been found.Taking Shenzhen metro line 11 as an example,erosion analysis reports of 627 groundwater samples taken from 30 sections of metro line 11 were collected,and the whole line of groundwater corrosion intensity distribution was obtained,which was analyzed with the combination of geographical location of the passing metro line and the groundwater environment.It was concluded that groundwater corrosion in Shenzhen metro line 11 was closely related to its geographical location of the coast and the reclamation area with the metro line through it.The study provided guidance for the groundwater corrosion evaluation of subways in the coastal cities with seawater intrusion area.