德州市深层地下水人工回灌试验浅探

Study on Artificial Recharge Experiment of Deep Undergroud Water in Dezhou City

摘要:

德州市德城区由于长期开采深层地下水,引起了水位区域性大幅度下降,形成了大面积地下水降落漏斗,并产生了地面沉降等不良地质环境问题。为保护德州市地质环境和深层地下水资源,于2002年开展了深层地下水人工回灌试验。根据回灌试验成果和深层地下水目前开采强度推算,利用德城区现有部分(65%)深机井在丰水季节进行人工回灌,单井回灌量保持1200m3/d,每年保持90d的回灌时间,回灌量可达到1080×104m3/a,可增可采资源量675×104m3/a。因此开展人工回灌可以有效地补给地下水源,解决深层地下水资源枯竭问题。

Abstract:

Due to long-time exploitation of deep underground water in Decheng district of Dezhou city, large square of funnels have been formed, and surface collaspe have been formed as well. In order to protect geological environment and deep underground water resource in Dezhou city, artificial recharge experiment of deep underground water was carried out in 2002. Achievements of artificial recharge experiment is introduced in this paper, possibility, social and economic, environment efficacy have been analysed as w..