沙漠地区地下水上升机理及防水设计方法
作者简介:
田伟,博士,正高级工程师,国家一级注册结构工程师,国家一级注册造价工程师,国家注册咨询工程师(投资),国家一级注册建造师,E⁃mail:vannytian@ 163. com
作者单位:
上海中建海外发展有限公司,上海 200125
基金项目:
中建八局 2025 年度科技研发项目(2025⁃4⁃04)
摘要:
针对沙漠地区人类活动引发的地下水集聚对地下工程的侵蚀问题,分析了沙漠地区地下水集聚机理。沙漠地区地质构造中隔水层的空间分布特征是地下水赋存的必要条件,结合地表水入渗类型及渗透量的综合分析,构建了沙漠地区地下水上升速度的计算方法,并根据地下水的上升速度确定地下结构的防水使用环境类别。结合沙漠地区地基砂土的化学分析,根据建筑设计使用年限,提出了以动态防水与防腐协同作用的防护体系设计方法,为提升沙漠地区地下工程的耐久性提供了理论支撑,可有效解决沙漠地区地下水上升引发的地下结构问题。

English:
This paper addresses the issue of groundwater accumulation caused by human activities indesert areas and its hazards to underground structures, the mechanism of groundwater accumulation indesert areas is analyzed. The spatial distribution characteristics of aquiclude within desert geologicalstructures are identified as a necessary condition for groundwater retention. By integrating quantitativeanalysis of surface water infiltration types and seepage volumes, a calculation method for groundwaterrising velocity is established. Based on the groundwater rising velocity, the waterproofing environmentalcategories for underground structures are determined. Combined with chemical analysis of sands in desertfoundations and considering the designed service life of buildings, a protective design method based onthe synergy of dynamic waterproofing and anti⁃corrosion mechanisms is proposed. This research providestheoretical support for enhancing the durability of underground engineering in desert areas,which caneffectively solve underground structure problem caused by groundwater rising in desert areas.