地震是以岩体快速破裂为特征的构造运动，地震破裂或地震波作用下形成的裂隙成为地下水运移新通道。汶川地震前后出现的大量地下水宏观与微观异常现象可能与地下水运移有关。温度作为地下水运移的示踪剂可以用来研究地下水输送过程，并且具有很大优势。选择以震中区井水温为研究对象，研究地震前后水温变化特征，建立井-含水层的数学物理模型，模拟分析汶川地震前后水热量运移特征，并通过水温观测值检验模型与参数的合理性。分析震后观测井水温变化与水热量运移的相关性。探讨剔除地下水运移影响后的地下流体异常与余震的关系。本项目的实施将为地震地下流体动力学研究提供新途径，同时研究成果还会应用到分析地震对地下水供应及其质量、污染物运移、地下储存库安全、油气生产以及地下热水系统等方面的影响。

The earthquake is the tectonic movement with fast rupture characteristics of rock, and the fissure is a new channel for groundwater movement under the action of seismic rupture or wave. The macroscopic and microscopic abnormalities of groundwater after Wenchuan earthquake may be related to migration of groundwater. Temperature as a groundwater tracer can be used to study groundwater transport process and has a great advantage. We study on the characteristics of water temperature changes and built a mathematical model to simulate the thermal transport and analysis the progress, using the water temperature in the epicentral area. The accuracy of model and parameters can be tested by the actual temperature. In this research foundation, we analyze the correlation between well water temperature change and water thermal transport. And then reveal the relationship between aftershocks and the underground fluid anomaly，eliminating effects of groundwater movement induced by earthquake. It will provide new ways to study the seismic fluid dynamics if the project would be carried out, while the research results will be applied to the analysis of postseismic groundwater supply and quality, contaminant transport, underground repository safety, oil and gas production and underground heat water systems and so on.