丹江口大坝新老混凝土结合首场试验出色为“南水北调”中线水源续建工程提供了成功经验３月４口，丹江口大坝新老混凝土结合试验第一阶段工作圆满完成。这次试验共浇筑混凝土４５００ｍ３。根据试验现场埋设的６８支仪表观测资料分析，目前已浇筑的混凝土新老结合部分观测... Danjiangkou dam new old concrete combined with the first test of excellence for the “South-to-North Water Diversion” mid-line water supply continued success of the project provided March 4, Danjiangkou dam new and old concrete combined with the first phase of the successful completion of the test. This test a total of cast concrete 4500m3. According to the test site buried 68 instruments observed data analysis, the current has been pouring concrete old and new part of the observation ...