浅谈溪洛渡水电站水垫塘边坡拉模施工工艺
摘要:溪洛渡水电站水垫塘边坡混凝土施工质量要求较高,(长×宽:×12m),根据设计要求,水垫塘边坡平整度要求为20mm,整体控制难度较大,且按常规方法进行备仓浇筑施工进度缓慢。鉴于此,可采用拉模方式进行连续浇筑,主要从拉模施工工艺方面进行控制,既保证了平整度满足设计要求,又保证了施工进度要求,一次性浇筑最大高度可达到26m。
关键词:水垫塘边坡拉模
abstract: construction of xiluodu hydropower station plunge pool slope concrete construction of higher quality requirements, the largest single warehouse area is ( length × width: ×12m ), according to the design requirements, plunge pool slope roughness is 20mm, the overall control difficulty is greater, and according to conventional method preparation pouring construction progress is slow. in view of this, can be used for continuous casting die, die construction technology mainly from the aspects of control, not only guarantee the smoothness and meet the design requirements, and ensure the construction schedule, one-time pouring maximum height can reach 26m.
key words: water cushion pool, slope, drawing die
中图分类号:tu74文献标识码:a 文章编号:
1 概述
溪洛渡水电站工程是金沙江下游梯级开发的第三级水电站,也是目前国内位居第二的特大型水电站。它是一座以发电为主,兼有拦沙、防洪和改善下游航道条件等综合利用效益的巨型水利水电枢纽。电站主要供电华东、华中地区,兼顾川、滇两省用电需要,是金沙江
“西电东送”距离最近的骨干电源之一,也是金沙江上最大的水电站。电站由混凝土双曲拱坝、泄洪建筑物、引水发电建筑物及导流建筑物等组成。水垫塘和二道坝为本工程重要的消能建筑物,承担了设计泄洪流量为32278m3/s的大流量消能,要承受强大的动水冲击压力和脉动压力。
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