铜锣径水库主坝填筑材料分区优化设计

Optimal design of dam filling material for Tongluojing Reservoir project

基于初步设计审查意见和原施工图设计,对铜锣径水库主坝分区填筑材料进行优化设计。在满足坝体边坡稳定及变形要求的前提下,主坝全强风化料除布置在下游坝壳外,在心墙与上游堆石之间增设全强风化料区,并增设过渡层和反滤层,主坝上游坡比由1∶2.75放缓到1∶3。优化后坝体堆石用量大幅减少,满足了工程用料和工程进度的要求。

Based on the checking opinion of preliminary design and construction drawing design,the optimal design of main dam filling for Tongluojin Reservoir project was carried out.Under the premise of slope stability and deformation for the dam,the complete strong weathering material was filled in the area between core wall and rock-fill upstream,not only in the downstream dam shell.The slope ratio for upstream was changed from 1∶2.75 to 1∶3.0.The quantities of rock was reduced by the optical design and the requirement for project material and progress was meet.