对于地基中含有大量的孤石和漂石的砂砾石混凝土防渗墙施工,以往的做法主要是采用钻抓法进行施工,但往往会造成塌孔甚至于无法成槽。本文结合工程实际对含有大量的孤石和漂石的砂砾石地基进行钻劈法混凝土防渗墙施工工艺做一阐述,可供类似工程借鉴。 For the construction of sand and gravel concrete cutoff walls with a large number of boulders and boulders in the foundation, the previous practice mainly used the construction method of drilling and grasping, but it often resulted in collapse holes or even failure to become grooves. In this paper, combined with the actual engineering practice on a large number of boulders and boulders containing sand and gravel basement wall cutting method of concrete cutoff wall construction technology to do an explanation for similar projects for reference.