在淤泥质软土地层中进行浅埋暗挖隧道施工，土体容易产生流塑性变形甚至失稳，介绍了一种适合于淤泥质地层的新型土体加固技术——水平搅拌，该技术不仅克服了在地面上无作业条件的难题，而且能够通过监测和控制孔口的返浆量以达到有效控制地面沉降的目的。

Where a shallowburied underground tunnel is mined in soft ground consisting of mud layers, plastic deformation, even loss of stability is prone to occur. The article presents a new kind of soil consolidation technology suitable for muddy ground, i.e. horizontal mixing consolidation technology. By means of the mentioned horizontal mixing consolidation technology, the difficult problem that there is no space available on theground surface for the ground consolidation construction is overcomed and the ground surface subsidence is effectively controlled by means of proper monitoring and control of the volume of thereturning mortars from the hole mouths.