Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Roller compacted concrete dam seepage-proofing structure and construction method thereof
The invention relates to a roller compacted concrete dam seepage-proofing structure and a construction method thereof, and belongs to the field of water conservancy projects. Two-level-distribution gel-rich roller compacted concrete is arranged below the dead water level elevation; three-level-distribution gel-rich roller compacted concrete is arranged above the dead water level elevation; a firstcopper water stop and a second copper water stop of a dam transverse joint are buried in the two-level-distribution gel-rich roller compacted concrete and the three-level-distribution gel-rich rollercompacted concrete; a water stop copper sheet is buried at the pouring layer face of the dam body roller compacted concrete; the two ends of the water stop copper sheet are welded to the first copperwater stop of the dam transverse joint; and polyurea coatings are sprayed to the upstream face of the two-level-distribution gel-rich roller compacted concrete and the upstream face of the three-level-distribution gel-rich roller compacted concrete. The roller compacted concrete dam seepage-proofing structure and the construction method thereof have the advantages that the water head pressure above the dead water level elevation is small, the temperature difference between the surface and the interior of the concrete is large, the three-level-distribution concrete is adopted, the hydration heat can be effectively reduced, and the possibility of upstream face cracking is effectively reduced; and the two-level-distribution concrete is adopted below the dead water level elevation, and the effective seepage-proofing effect can be achieved.
本发明涉及一种碾压混凝土坝防渗结构及其施工方法，属于水利工程领域。死水位高程以下为二级配富胶凝碾压混凝土，之上为三级配富胶凝碾压混凝土，大坝横缝第一、二道铜止水埋设在二级配富胶凝碾压混凝土、三级配富胶凝碾压混凝土中，在坝体碾压混凝土浇筑层面处埋设一道止水铜片、且该止水铜片两端与大坝横缝第一道铜止水焊接，在二级配富胶凝碾压混凝土、三级配富胶凝碾压混凝土的上游面喷涂聚脲涂层。优点是：在死水位高程以上水头压力较小，混凝土表面与内部温差较大，采用三级配混凝土，能够有效降低水化热，有效减小上游面开裂的可能性；死水位高程以下采用二级配混凝土，能起到有效的防渗作用。
Roller compacted concrete dam seepage-proofing structure and construction method thereof
The invention relates to a roller compacted concrete dam seepage-proofing structure and a construction method thereof, and belongs to the field of water conservancy projects. Two-level-distribution gel-rich roller compacted concrete is arranged below the dead water level elevation; three-level-distribution gel-rich roller compacted concrete is arranged above the dead water level elevation; a firstcopper water stop and a second copper water stop of a dam transverse joint are buried in the two-level-distribution gel-rich roller compacted concrete and the three-level-distribution gel-rich rollercompacted concrete; a water stop copper sheet is buried at the pouring layer face of the dam body roller compacted concrete; the two ends of the water stop copper sheet are welded to the first copperwater stop of the dam transverse joint; and polyurea coatings are sprayed to the upstream face of the two-level-distribution gel-rich roller compacted concrete and the upstream face of the three-level-distribution gel-rich roller compacted concrete. The roller compacted concrete dam seepage-proofing structure and the construction method thereof have the advantages that the water head pressure above the dead water level elevation is small, the temperature difference between the surface and the interior of the concrete is large, the three-level-distribution concrete is adopted, the hydration heat can be effectively reduced, and the possibility of upstream face cracking is effectively reduced; and the two-level-distribution concrete is adopted below the dead water level elevation, and the effective seepage-proofing effect can be achieved.
本发明涉及一种碾压混凝土坝防渗结构及其施工方法，属于水利工程领域。死水位高程以下为二级配富胶凝碾压混凝土，之上为三级配富胶凝碾压混凝土，大坝横缝第一、二道铜止水埋设在二级配富胶凝碾压混凝土、三级配富胶凝碾压混凝土中，在坝体碾压混凝土浇筑层面处埋设一道止水铜片、且该止水铜片两端与大坝横缝第一道铜止水焊接，在二级配富胶凝碾压混凝土、三级配富胶凝碾压混凝土的上游面喷涂聚脲涂层。优点是：在死水位高程以上水头压力较小，混凝土表面与内部温差较大，采用三级配混凝土，能够有效降低水化热，有效减小上游面开裂的可能性；死水位高程以下采用二级配混凝土，能起到有效的防渗作用。
Roller compacted concrete dam seepage-proofing structure and construction method thereof
一种碾压混凝土坝防渗结构及其施工方法
SU JIALIN (Autor:in) / LU ZHENGANG (Autor:in) / YANG CHENGZHU (Autor:in) / LI RUNWEI (Autor:in) / LIU MAOJUN (Autor:in) / MA ZHIQIANG (Autor:in) / GUO JIANYE (Autor:in) / LIU TAO (Autor:in) / QU YINGLEI (Autor:in) / WANG TIEFENG (Autor:in)
28.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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