岭澳核电站核岛厂房倒置屋面防水施工技术

REVERSE WATERPROOFING METHOD APPLIED TO NUCLEAR ISLAND PLANT OF LING'AO NUCLEAR POWER STATION

岭澳核电站核岛厂房屋面防水等级为Ⅰ级。施工中采用倒置屋面柔性防水,即一道聚氨酯涂膜防水层,两道高分子卷材防水层,防排水较集中的部位做防水附加层,有效保证了核岛厂房防水质量,提高了防水层耐用年限,缩短了工期,缺点是维修不方便。

Roof waterproofing standard of nuclear island plant of Ling'ao Nuclear Power Station was designed as gradeⅠ.Reverse wa-terproofing method was adopted which were one course polyurethane and two course macromolecular sheet.Additional waterproof course have to be set at the parts where there is heavy rainwater drainage.This mea-sure can effectively secure waterproof quality;shorten construction dura-tion;extend service life as well.But the disadvantage is the inconve-nience of maintenance.