秦山核电厂安全壳采用后张法有粘结预应力张锚体系,预应力筋按竖束、水平束、穹顶束三维布置,多方位施加预应力,张拉吨位大,数量多。预应力孔道采用镀锌金属波纹管。自制穿束机操作简单,移动方便,且可控制钢绞线进退。在张拉和孔道灌浆中经一系列试验,确定合理的工艺,保证了施工质量。 Qinshan Nuclear Power Plant uses a post-tensioned prestressed tensioned anchor system for the containment. The prestressed tendons are arranged in a three-dimensional arrangement of vertical beams, horizontal beams, and dome beams. Prestressing is applied in multiple directions, with large tonnages and large quantities. Pre-stressed holes are made of galvanized metal bellows. The self-made perforating machine is easy to operate, easy to move, and can control the forward and backward strands. In a series of tests in tension and tunnel grouting, a reasonable process was determined to ensure construction quality.