胶南大场镇滩涂灰场渗漏性评价

Leakance Evaluation of the Dust Field on the Beach of the Dachang Town in Jiaonan

胶南大场镇滩涂灰场地层岩性上部以第四系中砂为主,下部为花岗岩岩体。地下水补给来源为大气降水、海水涨潮入渗和河流侧渗。通过多种试验,确定第四系孔隙水透水层是场区产生渗漏的主要地层,其次为强风化花岗岩。通过垂直与水平渗漏定量计算,评价本区应进行防渗处理。

In the Dachang Town of Jiaonan City, the place in which a beach dust field will be located. On the top of the beach, the stratum lithology is the medium sand and granite. In the dust site, hydro- geological condition is complicated, and the sources of ground water supply are mainly atmosphere precipitation, the leakage from the seawater floodtide and side leakage from river. In this article, field sampling, laboratory test, including field seeping test, pumping test and others are done. The Quaternary system is the main stratum in which seepage occurs in the dust site. Secondly, is high weathering granite. Based on the vertical and horizontal quantitative calculation, some seepage-proof measures must be adopted in the site.