高压旋喷灌浆技术用于防渗墙施工，在国内外的坝体防渗施工中有过应用，但用于闸基防渗 在北京地区以前尚未推广。这项技术的工作原理是利用射流作用切割掺搅地层，同时注入水 泥浆改变原地层结构和组成，形成水泥、砂、土的凝结体。该技术在通惠闸工程中应用取得 了良好的效果 High-pressure jet grouting technology used in cutoff wall construction, dam construction at home and abroad have been applied in anti-seepage, but for the impermeable base dam in Beijing has not been promoted. The working principle of this technology is to cut and mix the strata by jetting, and inject grout to change the original formation structure and composition to form the cement, sand and soil condensate. The technology has achieved good results in the application of the project