Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rock-fill concrete dam cushion structure and construction method
The invention relates to the technical field of building engineering construction, and discloses a rock-fill concrete dam cushion layer structure and a construction method. The rock-fill concrete dam cushion layer structure comprises a cushion layer arranged on a dam foundation and a rock-fill layer arranged on the cushion layer, and the cushion layer and the rock-fill layer are both formed by cementing block stones and high-self-compaction-performance concrete; the upper surface of the rockfill layer and the interlayer combination face between the cushion layer and the rockfill layer are all arranged to be uneven rough faces. According to the rock-fill concrete dam cushion layer structure, the rock-fill concrete is adopted to replace normal concrete to pour the river bed section cushion layer of the dam, and the design of a construction joint in the dam foundation cushion layer structure is omitted by utilizing the advantages that the cement consumption of the rock-fill concrete is small, and rock-fill participation has the crack development blocking effect; meanwhile, the block stones are used in the cushion layer, part of concrete hydration heat is absorbed, the probability of crack generation is reduced, the cushion layer is integrally poured, the construction progress is faster, the bonding effect of the bonding surface of the dam body and the cushion layer is better, and the investment cost of personnel and materials can be effectively reduced.
本发明涉及建筑工程施工技术领域，公开了一种堆石混凝土坝垫层结构及施工方法。堆石混凝土坝垫层结构，包括：设置在坝基上的垫层以及设置在垫层上的堆石层，垫层、堆石层均由块石与高自密实性能混凝土胶结而成；堆石层的上表面、垫层与堆石层之间的层间结合面均设置为凹凸不平的毛面。本堆石混凝土坝垫层结构采用堆石混凝土取代常态混凝土浇筑大坝河床段垫层，利用堆石混凝土水泥用量少、堆石参与具有阻断裂缝发展的优势，在坝基垫层结构中取消了施工缝的设计；同时在垫层中使用块石，吸收了部分混凝土水化热，降低了裂缝产生的几率，垫层采用整体浇筑，施工进度更快、坝体与垫层结合面胶结效果更好，而且可有效减少人员与材料的投入成本。
Rock-fill concrete dam cushion structure and construction method
The invention relates to the technical field of building engineering construction, and discloses a rock-fill concrete dam cushion layer structure and a construction method. The rock-fill concrete dam cushion layer structure comprises a cushion layer arranged on a dam foundation and a rock-fill layer arranged on the cushion layer, and the cushion layer and the rock-fill layer are both formed by cementing block stones and high-self-compaction-performance concrete; the upper surface of the rockfill layer and the interlayer combination face between the cushion layer and the rockfill layer are all arranged to be uneven rough faces. According to the rock-fill concrete dam cushion layer structure, the rock-fill concrete is adopted to replace normal concrete to pour the river bed section cushion layer of the dam, and the design of a construction joint in the dam foundation cushion layer structure is omitted by utilizing the advantages that the cement consumption of the rock-fill concrete is small, and rock-fill participation has the crack development blocking effect; meanwhile, the block stones are used in the cushion layer, part of concrete hydration heat is absorbed, the probability of crack generation is reduced, the cushion layer is integrally poured, the construction progress is faster, the bonding effect of the bonding surface of the dam body and the cushion layer is better, and the investment cost of personnel and materials can be effectively reduced.
本发明涉及建筑工程施工技术领域，公开了一种堆石混凝土坝垫层结构及施工方法。堆石混凝土坝垫层结构，包括：设置在坝基上的垫层以及设置在垫层上的堆石层，垫层、堆石层均由块石与高自密实性能混凝土胶结而成；堆石层的上表面、垫层与堆石层之间的层间结合面均设置为凹凸不平的毛面。本堆石混凝土坝垫层结构采用堆石混凝土取代常态混凝土浇筑大坝河床段垫层，利用堆石混凝土水泥用量少、堆石参与具有阻断裂缝发展的优势，在坝基垫层结构中取消了施工缝的设计；同时在垫层中使用块石，吸收了部分混凝土水化热，降低了裂缝产生的几率，垫层采用整体浇筑，施工进度更快、坝体与垫层结合面胶结效果更好，而且可有效减少人员与材料的投入成本。
Rock-fill concrete dam cushion structure and construction method
一种堆石混凝土坝垫层结构及施工方法
ZHANG QUANYI (Autor:in) / BI ZHONGMING (Autor:in) / LUO JIAN (Autor:in) / ZHANG XIXI (Autor:in) / ZENG XU (Autor:in) / HE TAOHONG (Autor:in) / LI LINGYU (Autor:in) / QIAO ZHICHAO (Autor:in)
29.07.2022
Patent
Elektronische Ressource
Chinesisch
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