虽然重力坝基础进行满槽浇筑的工程已有很多，但基础围岩对坝体的有利作用都是用来作大坝的安全储备．在系统研究利用坝基围岩的抗体作用和坝后填土的静止土压力对大坝的有利作用，减小大坝断面、方便施工、有利于总体布置等方面的基础上，结合阎王鼻子大坝工程提出了镶坝技术．采用该技术可充分利用围岩对建筑物基础的抗体作用及坝后填土的主动上压力．理论和实践证明镶坝技术是一项优质高效的筑坝技术． Although there are many projects for the foundation of gravity dam to be filled with troughs, the favorable effect of the foundation rock on the dam body is used for the safety reserve of the dam. In the systematic study of the use of the dam foundation of the role of rock and dam after the earth pressure of the earth pressure on the beneficial effects of the dam, reducing the dam section, easy construction, is conducive to the overall layout and so on, based on the combination of Yan Wang nose dam Engineering proposed dam technology. The use of this technology can make full use of the rock on the basis of the building’s role in the body of the dam and the initiative to fill the pressure on the dam. Theory and practice prove that dam technology is a high-quality dam construction technology.