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心墙堆石坝是清江水布垭水利枢纽的代表性坝型之一。为深入了解认识风化料和碎石土作为心墙防渗料的可靠性,开展了现场碾压试验研究。结果表明:页岩风化料作为心墙防渗料是可行的,特别是全、强上混合料,更具有可靠的防渗性能;但应注意强风化上带料的不均匀性,控制好全风化料的掺入量、级配、含水量,并充分压实以保证其满足防渗要求。庙王沟碎石土料具有良好的压实性,是一种理想的心墙防渗料。
Core rockfill dam is one of the representative dam types of Shuibuya hydro project in Qingjiang River. In order to know more about the reliability of weathering materials and gravelly soil as core impermeable material, a rolling compaction test on site was carried out. The results show that the shale weathering material is feasible as the core wall impermeable material, especially the full and strong admixture, more reliable anti-seepage performance; but should pay attention to the unevenness of the strip on the strong weathering, Weathered material incorporation, grading, water content, and fully compacted to ensure that it meets the seepage requirements. Temple Wang ditch gravel soil material has good compaction, is an ideal wall impermeable material.