阿海水电站大坝碾压混凝土施工质量监理

Supervision on construction quality of RCC dam of A'hai hydropower station

为确保阿海水电站大坝混凝土施工质量满足合同技术条款和设计要求,通过对规范开工申报与过程控制程序、混凝土工程过程质量控制、高温及雨季等特殊气象条件施工质量控制、碾压混凝土养护与防护的监督等进行有效的施工质量监管,并严格按照仓面设计和《碾压混凝土工法》对混凝土的入仓温度、浇筑温度、VC值、压实容重、振动碾的行走速度、碾压遍数等要求进行控制,使大坝单元工程施工质量取得了较好成效,优良率达90.1%,高于合同要求的质量目标,对同类工程具有一定的借鉴作用。

To ensure the construction quality of RCC dam of A＇hai hydropower station meeting the technical clauses and design requirements,the supervision engineers carry out the effective construction quality control through the standardization of the start-up declaration and program of process control,process quality control of concrete,construction quality control in high temperature and rainy weather conditions and supervision of RCC curing and protection,and control the concrete placing temperature,pouring temperature,VC value,compact unit weight,the walking speed of vibration roller,several times of rolling in strict accordance with the pouring-cube design and the ＂RCC engineering methods＂,accordingly.The dam unit project cunstruction quality achieved good results with the good rate of 90.1% that was higher than the quality goal of the contract requirements,and had some reference to similar projects.