Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method and cofferdam structure of underwater bearing platform
The invention relates to a construction method and cofferdam structure of an underwater bearing platform. The construction method comprises the steps that an anti-back-silting protection groove is formed in a preset position of the periphery of a foundation pit of the bearing platform; the foundation pit of the bearing platform is excavated at a preset position, and a steel casing is arranged in the foundation pit; and a steel hanging box with a reinforced concrete bottom sealing bottom plate is assembled on the steel casing, concrete is poured into the steel hanging box, and the bearing platform is obtained. The anti-back-silting protection groove is formed in the periphery of the foundation pit so that the situation that back silting of a riverbed occurs after the foundation pit of the bearing platform is excavated in place can be prevented; silt in the anti-back-silting protection groove is cleared away regularly so that the depth of the foundation pit can meet the requirement of aconstruction space of the steel hanging box; and in the rising and falling tide process, the flow plastic slit flows back to the anti-back-silting protection groove firstly in the flow plastic slit backflow process, and the silt in the anti-back-silting protection groove is cleared away regularly, so that the silt is prevented from flowing back into the foundation pit, therefore the space requirement for constructing a pouring jacket in the foundation pit is met, and it is guaranteed that the pouring jacket can be constructed smoothly.
本发明涉及水下承台的施工方法及围堰结构，包括在承台基坑外围的预设位置处设置防回淤护槽；在预设位置处挖掘承台基坑，在所述基坑内设置钢护筒；在所述钢护筒上组装具有钢筋混凝土封底底板的钢吊箱，在所述钢吊箱内浇筑混凝土，得到承台。通过在基坑的外围设置防回淤护槽，能够防止承台基坑开挖到位后，河床出现回淤，通过定时清理防回淤护槽内的淤泥，使得基坑深度能够满足钢吊箱施工空间。在涨落潮时，流塑性淤泥回流过程中，会先回流至防回淤护槽，通过定时清理防回淤护槽内的淤泥，避免了淤泥回流到基坑内，从而满足了在基坑内施工套箱的空间要求，保证套箱能够顺利的施工。
Construction method and cofferdam structure of underwater bearing platform
The invention relates to a construction method and cofferdam structure of an underwater bearing platform. The construction method comprises the steps that an anti-back-silting protection groove is formed in a preset position of the periphery of a foundation pit of the bearing platform; the foundation pit of the bearing platform is excavated at a preset position, and a steel casing is arranged in the foundation pit; and a steel hanging box with a reinforced concrete bottom sealing bottom plate is assembled on the steel casing, concrete is poured into the steel hanging box, and the bearing platform is obtained. The anti-back-silting protection groove is formed in the periphery of the foundation pit so that the situation that back silting of a riverbed occurs after the foundation pit of the bearing platform is excavated in place can be prevented; silt in the anti-back-silting protection groove is cleared away regularly so that the depth of the foundation pit can meet the requirement of aconstruction space of the steel hanging box; and in the rising and falling tide process, the flow plastic slit flows back to the anti-back-silting protection groove firstly in the flow plastic slit backflow process, and the silt in the anti-back-silting protection groove is cleared away regularly, so that the silt is prevented from flowing back into the foundation pit, therefore the space requirement for constructing a pouring jacket in the foundation pit is met, and it is guaranteed that the pouring jacket can be constructed smoothly.
本发明涉及水下承台的施工方法及围堰结构，包括在承台基坑外围的预设位置处设置防回淤护槽；在预设位置处挖掘承台基坑，在所述基坑内设置钢护筒；在所述钢护筒上组装具有钢筋混凝土封底底板的钢吊箱，在所述钢吊箱内浇筑混凝土，得到承台。通过在基坑的外围设置防回淤护槽，能够防止承台基坑开挖到位后，河床出现回淤，通过定时清理防回淤护槽内的淤泥，使得基坑深度能够满足钢吊箱施工空间。在涨落潮时，流塑性淤泥回流过程中，会先回流至防回淤护槽，通过定时清理防回淤护槽内的淤泥，避免了淤泥回流到基坑内，从而满足了在基坑内施工套箱的空间要求，保证套箱能够顺利的施工。
Construction method and cofferdam structure of underwater bearing platform
水下承台的施工方法及围堰结构
WEN DONGCHANG (Autor:in) / WU JIAN (Autor:in) / LI HONGWEN (Autor:in) / YUAN FENG (Autor:in) / LIU HUAIGANG (Autor:in) / XIANG TAO (Autor:in) / WANG JINLIANG (Autor:in)
06.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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