河道整治工程水下根石探测技术是黄河下游防洪保安中急需解决的技术难题之一,解决根石探测技术问题,及时掌握根石的分布情况,对减少河道整治工程出险、保证防洪安全至关重要.为了解决这一重大难题,从美国引进了“X-STAR全谱扫频式数字水底剖面仪”.通过对大量的现场探测试验结果分析表明,该仪器对探测水下18m以内的根石分布情况十分有效,经过配套完善和二次开发,基本解决了长期以来一直未能解决的黄河下游高含沙洪水条件下穿透淤泥层的根石探测问题. The technology of underwater root stone detection in river regulation works is one of the most urgent technical problems to be solved in the flood control and security of the lower reaches of the Yellow River. To solve the technical problems of root detection and timely grasp of the distribution of root stone, it is very important to reduce the risk of river regulation works and ensure the flood control safety. To solve this major problem, “X-STAR full spectrum swept digital underwater bottom profiler” was introduced from the United States.By analyzing a large number of field exploration test results, it is proved that the instrument is very effective in detecting the distribution of root stone within 18m underwater After the complete and secondary development, it basically solved the root-stone detection problem of penetrating the silt layer under the condition of high sediment flood in the lower Yellow River that has not been solved for a long time.