Experimental Research on Effect of Tide for Alongshore Groundwater Table

Abstract

the surface water with apparently affected by the tide, its shore groundwater table fluctuates with the tide of surface water. In this article, a tide simulation system based on two-way water pump technique was designed and development. Experimental research on the influences of tide for alongshore groundwater table fluctuates and the mean periods groundwater table over height. The experimental results indicated that, everywhere in the alongshore, groundwater table fluctuations are asymmetric, and they spread much farther than the falling phase; groundwater table fluctuations has phase lag. amplitude attenuation of groundwater table fluctuations is quicken as the onshore distance increases. The mean period’s groundwater table in unconfined aquifers is higher than the still groundwater table in alongshore (i.e. over height). The over height of groundwater table is minish as the onshore distance increases.