The principle of high pressure jet grouting is briefly introduced. The mechanism of underground solidification and induration of cement clay grout is emphatically discussed and tested and vertified in engineering.

• 简要介绍了高压喷射灌浆新技术的原理，重点论述了水泥粘土浆在地下的固结与硬化机理，并以工程实践作了验证。