广饶盐场卤水开采与地面沉降相关性研究

Study on the Correlation Between Brine Mining and Ground Settlement in Guangrao Salt Field

对广饶盐场区域地下卤水开采历史、开采范围、开采量进行了论述,对浅层、中深层卤水水文地质特征进行了调查分析,对盐场区域工程地质条件,特别是浅地层岩性、分布及物理力学指标进行了分析研究,对近年来浅层、中深层地下水降落漏斗变化趋势进行了论述,结合2011年6月—2013年3月水准控制点测量数据及2017年3月—2019年5月INSAR监测数据对该区域地面沉降成因进行了综合研究,得出了该区域地面沉降主要成因为卤水集中超量开采的结论,并提出了该区域地面沉降防治措施。

This paper discusses the mining history,scope and quantity of underground brine in Guangrao Salt Field area,investigates and analyzes the hydrogeological characteristics of shallow and middle deep brine,analyzes and studies the engineering geological conditions of the salt works,especially the lithology,distribution and physical and mechanical indexes of 200m shallow strata,discusses the variation trend of falling funnel of shallow and middle and deep groundwater in recent years.Based on the measurement data of leveling control points from June 2011 to March 2013 and INSAR monitoring data from March 2017 to May 2019,the causes of land subsidence in this region are comprehensively studied.The conclusion is drawn that the main cause of land subsidence in this region is concentrated excessive mining of brine,and the prevention and control measures of land subsidence in this region are proposed.