生态挡墙与传统挡墙对地下水涵养的原型观测研究

传统的不透水性硬化挡墙切断了河道与岸边之间的物质、能量及信息的交换,阻碍了河道水体与地下水体的相互补给。生态挡墙是一种多孔透水性挡墙,打通了河道水体和地下水体的流通通道,加强了不同水体间的相互涵养作用。本文采用原型河道现场试验方法,通过水位仪观测不同挡墙后各测点地下水水位数据,定性分析两种挡墙对地下水的涵养作用;选取具有代表性的观测数据,计算地下水对河道水的净补给量及反补给量,数据显示生态挡墙的净补给量是传统挡墙的1.78倍,反补给量是2.5倍。研究结果表明,生态挡墙对水体间的相互涵养作用效果较佳。结合合肥市城市河道的具体情况,分析得出生态挡墙在实际应用中的效果会更明显。为城市河道生态治理提供参考。

Prototype Observation Research of the Ecological Retaining Wall and the Traditional Retaining Wall on Groundwater Conservation.

The traditional impermeable hardening retaining wall cut off the exchange of material, energy and information between rivers and coasts, and hinder the mutual supply between river and groundwater. As porous permeable retaining wall, eco-retaining wall get connection between river and groundwater, and strengthen the mutual conservation effect of different water bodies. A prototype river-site experiment was proceed, and the groundwater levels of each measuring points after the retaining wall were tested. The ...