福建粮食大厦地下防水施工技术

Underground waterproofing technique for Fujian Grain Mansion

福建粮食大厦在春季地下防水施工中，采取以卵石通水层、盲沟、集水井降水代替井点降水，配合化学注浆堵漏处理，底板防水层由内贴改为外贴，结合“三掺”自防水混凝土施工等措施，加快了施工进度，简化了施工程序，取得了较好的效果。

In the waterproofing for the basement of Fujian Grain Mansion in Spring,various technical measures were adopted with the result of good progress,simplified construction procedure and better effect.These measurec include gravel drainage layer,blind drains and collecting wells instead of well-point dewatering;water stopping with chemical grouting;applying waterproof layer externally instead of internally together with so called“three additions”self-waterproof concrete.[