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湛江市作为广东省主要由地下水供水城市,其地面沉降现象日益加剧,其为了控制地面沉降的发生和发展,在提出合理的地面沉降计算方法的基础上,对未来地面沉降进行预测分析。菉塘为湛江市地面沉降中心之一,选取菉塘沉降中心计算其最终沉降量,并对其沉降趋势及沉降主导因素进行分析预测与确定。湛江市地层和地下水分布比较复杂,地层几乎涵盖了黏性土、粉土、砂、基岩等几乎所有类型,地下水类型较多,几乎涉及到了所有地下水类型。为了合理预测抽取地下水引起的地面沉降,有必要通过对不同地层进行分析,提出简单、实用、使用便捷的沉降计算方法。
In order to control the occurrence and development of land subsidence, Zhanjiang City, as the main water supply city of Guangdong Province, is becoming more and more ground subsidence. As a result, a reasonable land subsidence calculation method is proposed, and future ground subsidence is predicted and analyzed. Zhaotong is one of the land subsidence centers in Zhanjiang City. Choosing the final settlement of the submarine center of Lutang and calculating its final settlement, and analyzing and predicting the settlement tendency and the leading factor of subsidence. Zhanjiang City, the distribution of groundwater and groundwater is more complicated, the formation covers almost all types of clay, silt, sand, bedrock and so on, groundwater types are more, almost all types of groundwater involved. In order to reasonably predict the ground subsidence caused by groundwater extraction, it is necessary to analyze the different strata and propose a simple, practical and easy-to-use settlement calculation method.