两河口水电站大坝工程招标阶段填筑料核子密度仪快速检测方法研究

发布时间：2018-06-13 13:16

本文选题：砾土料 + 堆石料　；参考：《水力发电》2017年09期

【摘要】：堆石坝工程中细料压实度、粗料孔隙率是施工质量控制的一个重要指标。从保证测试精度角度而言,应采用大粒径大试坑人工检测为主;但从工程施工角度而言,为加快施工进度,减少因质量检测影响施工时间,检测试坑不宜过大;因此,施工质量检测要求与现场施工进度要求存在一定的矛盾。为解决这一矛盾,两河口水电站大坝工程在招标阶段碾压试验过程中,开展了一系列施工质量快速检测方法研究。结合现场碾压试验,对核子密度仪法在掺砾土料、堆石料施工质量检查中的运用进行了介绍。
[Abstract]:Compaction degree of fine material and porosity of coarse material are important indexes of construction quality control in rockfill dam project. From the point of view of ensuring test precision, the manual inspection of large diameter and large test pit should be adopted, but from the point of view of engineering construction, in order to speed up the construction progress and reduce the construction time affected by quality inspection, the test pit should not be too large. There are some contradictions between construction quality inspection requirements and site construction schedule requirements. In order to solve this contradiction, a series of rapid inspection methods of construction quality were carried out in the rolling test process of the dam project of Lianghekou Hydropower Station in the bidding stage. Based on the field compaction test, the application of nuclear densitometer method in the construction quality inspection of gravel and rockfill materials is introduced.
【作者单位】：雅砻江流域水电开发有限公司两河口建设管理局;
【分类号】：TV523

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