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近几十年来由于科学技术的飞速发展,特别是土力学的发展,施工技术和机械化水平的提高,促进了以当地材料为主的土石坝的建设.从国内外已建的土石坝工程统计,粗粒坝料一般占总填筑方量的60～90%.因而合理确定粗粒坝料的压实标准,对土工建筑物和地基的稳定性、坝体的设计和施工都具有重要意义.我国《水工建筑物抗震设计规范》(SDJ10—78)和《碾压式土石坝设计规范》(SDJ218—84)均要求无粘性土的压实标准按相对密度确定.相对密度是根据试验求得的最大、
In recent decades, due to the rapid development of science and technology, especially the development of soil mechanics, the improvement of construction technology and mechanization level, the construction of earth-rock dam dominated by local materials has been promoted.According to the statistics of earth-rock dam construction at home and abroad, Generally, coarse-grained dam material accounts for 60-90% of the total filling volume, so it is of great significance to determine the compaction standard of coarse grained dam material reasonably, and to the stability of geotechnical structures and foundations and the design and construction of dam body. China’s “Code for Seismic Design of Hydraulic Structures” (SDJ10-78) and “Code for Design of Roller Compacted Earthfill Dam” (SDJ218-84) require compaction standards for clayey soils to be determined according to relative density, The largest,