实践证明,很多水利工程的实际渗流状态,不仅不可能和设计时的予想完全一样,有时还会有很大的出入。这是因为防渗设计所依据的各种勘探和试验数据不完全可靠,客观条件千变万化,钻孔数量有限,难以全面反映实际情况。还有在设计计算中采用了假定和简化了的边界条件;施工质量又往往不符合设计标准等等。因此,不少水利工程因渗流问题而失事。此外,要想揭示圩提运行情况,便于及早发现问题,予谋补救措施,最准确的办法就是进行原体渗流观测。原体渗流观测,对堤基来说,测压管水位和渗流量的观测是主要项目,它可为圩提 Practice has proved that the actual seepage of many water conservancy projects, not only impossible to design exactly the same time, and sometimes there will be a great discrepancy. This is because the various exploration and test data on which the seepage prevention design is based are not completely reliable, the objective conditions are ever-changing, and the number of drilling holes is limited and it is difficult to fully reflect the actual situation. There are assumptions and simplified boundary conditions used in design calculations; construction quality often does not meet design standards and so on. Therefore, many water conservancy projects crashed due to seepage problems. In addition, in order to reveal the operation of the dike and facilitate the early detection of the problem, the most accurate way to remedy the problem is to carry out observation of the seepage of the original body. Body seepage observation, for the dike, piezometric water level and seepage of the observation is the main project, it can be Wei mention