The construction technique of deep cut-off wall under the circumstance of poor quality of the dyke body and complicated geological structure of the dyke base is introduced.

• 介绍了在堤身质量差、堤基地质条件复杂情况下，深防渗墙施工的新工艺，重点论述了存在紧密胶结砂夹层时，采用液压抓斗和射水法联合成槽新工艺的成功经验。