唐山沿海地区地面沉降科学计算与预测

通过分析唐山沿海地区水文地质与工程地质条件，对唐山沿海地区地面沉降形成机理有了新的认识。建立区内地下水降落漏斗发展趋势数学模型，并且进行模型识别；引入贮水系数概念，结合地下水降落漏斗中心水位埋深值，建立区内地下水位变化趋势数学模型；将区内年地面沉降率和地下水位埋深数学模型有机结合，建立唐山沿海地区地面沉降数值计算模型，计算结果符合区内地面沉降变形实际。 海

Scientific Computing and Forecasting to Land Subsidence in Coastal Region of Tangshan

By analysising the hydrogeology and engineering geology conditions of Tangshan coastal area, a new understanding of formation mechanism of land subsidence in Tangshan coastal area was proposed.Firstly, the mathematical model for development tendency of groundwater funnel is established, by which the model is identified.Then the conception of storage co-efficient is introduced to establish the varying tendency model of groundwater level, in combination with the buried depth of water in groundwater funnel.Finally, combining with the annual land subsidence rate and the mathematical model for buried depth of groundwater, a calculation model for land subsidence in Tangshan coastal area is built, and the calculating result conforms to the real land subsidence and deformation.