Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for reverse construction of cofferdam closure gap in hydraulic reclamation
The method comprises the steps that a near-end cofferdam body of a primary-stage cofferdam and a primary-stage cofferdam body are constructed, and the open end is blocked by an anti-fouling curtain; the near-end cofferdam body is subjected to hydraulic reclamation, and the cofferdam bodies on the two sides of the next stage are constructed; the antifouling curtain is translated, and hydraulic reclamation is propelled from near to far; all sections of cofferdam bodies are constructed in sequence, the hydraulic reclamation step is repeated till cofferdam construction in the final stage, a tail section cofferdam body, a far-end cofferdam body and a closure gap are included, and a hydraulic reclamation area in the final stage is subjected to hydraulic reclamation; a drainage pipe is pre-buried on the far-end cofferdam body, a water-collecting well barrier communicated with the drainage pipe is arranged, and a flashboard is arranged on the water-collecting well; closing construction is carried out when hydraulic reclamation is carried out near the antifouling curtain; the antifouling curtain is removed, and hydraulic reclamation is supplemented to the elevation; according to the reverse construction method, the innovative antifouling curtain is used for seepage, the drainage efficiency in the hydraulic reclamation process is high, the closure gap is constructed when hydraulic reclamation is basically completed and the narrow pipe effect is weakened, the closure success rate is increased, multi-section, multi-point and multi-work-type overlapping construction is conducted in the construction process, and the construction efficiency is improved without environmental pollution.
本发明公开一种吹填造陆逆序施工围堰合龙口的方法，包括：初级阶段围堰的近端围堰体和初段围堰体施工，开放端由防污帘拦挡；由近端围堰体吹填，并开展下一阶段两侧围堰体施工；平移防污帘，由近至远推进吹填；顺序施工各段围堰体，重复吹填步骤至最终阶段围堰施工，包括末段围堰体、远端围堰体和龙口，吹填最终阶段吹填区；远端围堰体上预埋排水管，并设连通排水管的集水井拦挡，集水井上设闸板；吹填至防污帘附近时进行合拢施工；撤除防污帘并补充吹填至标高；该逆序施工方法利用革新防污帘渗流，吹填过程排水效率高，在基本完成吹填，狭管效应减弱时施工龙口，提高合拢成功率，施工过程多段多点多工种重叠施工，在无环境污染下提高施工效率。
Method for reverse construction of cofferdam closure gap in hydraulic reclamation
The method comprises the steps that a near-end cofferdam body of a primary-stage cofferdam and a primary-stage cofferdam body are constructed, and the open end is blocked by an anti-fouling curtain; the near-end cofferdam body is subjected to hydraulic reclamation, and the cofferdam bodies on the two sides of the next stage are constructed; the antifouling curtain is translated, and hydraulic reclamation is propelled from near to far; all sections of cofferdam bodies are constructed in sequence, the hydraulic reclamation step is repeated till cofferdam construction in the final stage, a tail section cofferdam body, a far-end cofferdam body and a closure gap are included, and a hydraulic reclamation area in the final stage is subjected to hydraulic reclamation; a drainage pipe is pre-buried on the far-end cofferdam body, a water-collecting well barrier communicated with the drainage pipe is arranged, and a flashboard is arranged on the water-collecting well; closing construction is carried out when hydraulic reclamation is carried out near the antifouling curtain; the antifouling curtain is removed, and hydraulic reclamation is supplemented to the elevation; according to the reverse construction method, the innovative antifouling curtain is used for seepage, the drainage efficiency in the hydraulic reclamation process is high, the closure gap is constructed when hydraulic reclamation is basically completed and the narrow pipe effect is weakened, the closure success rate is increased, multi-section, multi-point and multi-work-type overlapping construction is conducted in the construction process, and the construction efficiency is improved without environmental pollution.
本发明公开一种吹填造陆逆序施工围堰合龙口的方法，包括：初级阶段围堰的近端围堰体和初段围堰体施工，开放端由防污帘拦挡；由近端围堰体吹填，并开展下一阶段两侧围堰体施工；平移防污帘，由近至远推进吹填；顺序施工各段围堰体，重复吹填步骤至最终阶段围堰施工，包括末段围堰体、远端围堰体和龙口，吹填最终阶段吹填区；远端围堰体上预埋排水管，并设连通排水管的集水井拦挡，集水井上设闸板；吹填至防污帘附近时进行合拢施工；撤除防污帘并补充吹填至标高；该逆序施工方法利用革新防污帘渗流，吹填过程排水效率高，在基本完成吹填，狭管效应减弱时施工龙口，提高合拢成功率，施工过程多段多点多工种重叠施工，在无环境污染下提高施工效率。
Method for reverse construction of cofferdam closure gap in hydraulic reclamation
一种吹填造陆逆序施工围堰合龙口的方法
CHEN YUHUA (Autor:in) / CHAI GUANGZHI (Autor:in) / LI YANGGUANG (Autor:in) / LYU GUOFENG (Autor:in) / SHI FENG (Autor:in) / WANG DETAI (Autor:in) / GE ANDING (Autor:in) / LIN XICHUN (Autor:in) / WANG GUISONG (Autor:in) / DONG SHAOYUN (Autor:in)
09.08.2024
Patent
Elektronische Ressource
Chinesisch
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