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三峡工程二期防渗墙材料采用了长江科学院研制的“高强度、低模量”的柔性材料和塑性混凝土。为确保施工质量，科研人员配合施工单位进行现场施工质量的控制，全方位跟踪施工、除严格检测原材料、及时调整施工配合比外，还研究提出了防渗墙施工质量控制标准和早期评价施工质量的办法。在施工中采用这些办法后，达到及时反馈施工质量的目的，保证了二期围堰防渗墙施工的顺利进行。墙体材料的抽精检验和钻孔测试结果表明防渗墙的施工质量好，为二期围堰的高质量安全运行提供了可靠的保证。
Three Gorges Project impermeable wall material used in the Yangtze River Academy of Sciences developed “high strength, low modulus,” the flexible material and plastic concrete. In order to ensure the quality of construction, the scientific research personnel cooperated with the construction unit to control the construction quality on site and tracked the construction in all directions. In addition to rigorously testing the raw materials and timely adjusting the construction mix, the research also proposed the construction quality control standards for cutoff walls and the early evaluation of the construction quality Approach. In the construction of these methods, to achieve the purpose of timely feedback construction quality, to ensure the second phase cofferdam impervious wall construction smoothly. The testing of the material and the drilling test of the wall material show that the construction of the impervious wall is of good quality and provides a reliable guarantee for the high quality and safe operation of the second cofferdam.