我国已建成水库8.6万余座,其中90%以上是土坝;江河湖海堤防长达17.8万余公里,绝大部分也是土堤。由于各种原因堤坝内部大多存在着隐患,危及工程安全。因此,我国每年用于维修加固堤坝的费用数以亿元计。如何及时了解隐患的性质和位置,有针对性地进行加固,使工程转危为安,在当前具有十分重要的意义。土堤历史悠久,多由民埝逐渐加高培厚而 China has built more than 86,000 reservoirs, of which more than 90% are earth dams; rivers and lakes and sea embankments up to 178,000 km, the vast majority of embankments. Due to various reasons, most of the hidden dangers exist inside the dam, endangering the safety of the project. Therefore, the annual cost of repairing dikes in our country is in the hundreds of millions of dollars. How to keep abreast of the nature and location of hidden dangers, and to carry out targeted reinforcement so as to make the project an endangering safety are of great significance at present. Earth’s embankment has a long history, mostly by Minzhu gradually increased training thick