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A platform for research: civil engineering, architecture and urbanism
Existing underground station roof entrance and exit rapid plugging structure and construction method
The invention discloses an existing underground station roof entrance and exit rapid plugging structure and a construction method. The plugging structure comprises a plugging plate composed of prefabricated plates and post-poured concrete layers; post-cast strips are arranged between the prefabricated plates, micro-expansion concrete is adopted as post-cast concrete, and prefabricated plate inter-plate steel bar connecting joints are arranged in the post-cast strips; the prefabricated plates are hoisted above holes, needing to be plugged, of an existing underground station roof, and two side plate ends of the prefabricated plates are erected on an existing structure of the underground station roof; a waterproof structure is arranged at the joint of the existing structure of the undergroundstation roof and a newly-built plugging plate structure, the waterproof structure comprises a newly-built waterproof layer, and the overlapping length of the newly-built waterproof layer and an existing waterproof layer of the existing structure of the underground station roof is 500 mm to 1000 mm; and the overlapping length of the two sides of the plugging plate and the existing structure of theunderground station roof is 200 mm to 600 mm. The existing underground station roof entrance and exit rapid plugging structure and the construction method have the advantages that the advantages of cast-in-place reinforced concrete and prefabricated concrete components are combined, and the construction speed can be greatly increased on the premise that the structural integrity and reliability are guaranteed.
本发明公开了一种既有地下车站顶板出入口快速封堵结构及施工方法，封堵结构包括预制板和后浇混凝土层组成的封堵板；预制板间设置后浇带，后浇混凝土采用微膨胀混凝土，后浇带内设置预制板板间钢筋连接节点；在既有地下车站顶板需封堵开孔上方吊装预制板，预制板两侧板端搭设于地下车站顶板既有结构上；地下车站顶板既有结构与新建封堵板结构接口位置设防水结构，防水结构包括新建防水层，新建防水层与地下车站顶板既有结构的既有防水层重叠长度为500mm‑1000mm；封堵板的两侧与地下车站顶板既有结构的重叠长度为200mm‑600mm。本发明的效果是：结合了现浇钢筋混凝土与预制混凝土构件的优点，在保证结构整体性及可靠性的前提下，可大大加快施工速度。
Existing underground station roof entrance and exit rapid plugging structure and construction method
The invention discloses an existing underground station roof entrance and exit rapid plugging structure and a construction method. The plugging structure comprises a plugging plate composed of prefabricated plates and post-poured concrete layers; post-cast strips are arranged between the prefabricated plates, micro-expansion concrete is adopted as post-cast concrete, and prefabricated plate inter-plate steel bar connecting joints are arranged in the post-cast strips; the prefabricated plates are hoisted above holes, needing to be plugged, of an existing underground station roof, and two side plate ends of the prefabricated plates are erected on an existing structure of the underground station roof; a waterproof structure is arranged at the joint of the existing structure of the undergroundstation roof and a newly-built plugging plate structure, the waterproof structure comprises a newly-built waterproof layer, and the overlapping length of the newly-built waterproof layer and an existing waterproof layer of the existing structure of the underground station roof is 500 mm to 1000 mm; and the overlapping length of the two sides of the plugging plate and the existing structure of theunderground station roof is 200 mm to 600 mm. The existing underground station roof entrance and exit rapid plugging structure and the construction method have the advantages that the advantages of cast-in-place reinforced concrete and prefabricated concrete components are combined, and the construction speed can be greatly increased on the premise that the structural integrity and reliability are guaranteed.
本发明公开了一种既有地下车站顶板出入口快速封堵结构及施工方法，封堵结构包括预制板和后浇混凝土层组成的封堵板；预制板间设置后浇带，后浇混凝土采用微膨胀混凝土，后浇带内设置预制板板间钢筋连接节点；在既有地下车站顶板需封堵开孔上方吊装预制板，预制板两侧板端搭设于地下车站顶板既有结构上；地下车站顶板既有结构与新建封堵板结构接口位置设防水结构，防水结构包括新建防水层，新建防水层与地下车站顶板既有结构的既有防水层重叠长度为500mm‑1000mm；封堵板的两侧与地下车站顶板既有结构的重叠长度为200mm‑600mm。本发明的效果是：结合了现浇钢筋混凝土与预制混凝土构件的优点，在保证结构整体性及可靠性的前提下，可大大加快施工速度。
Existing underground station roof entrance and exit rapid plugging structure and construction method
一种既有地下车站顶板出入口快速封堵结构及施工方法
WANG CONGYUAN (author) / XU PENG (author) / LUO CHENG (author) / CONG HUITAO (author) / XIAO FENG (author)
2020-11-10
Patent
Electronic Resource
Chinese
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