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A platform for research: civil engineering, architecture and urbanism
Large-area soft soil cofferdam engineering construction technology in harbor area
The invention discloses a large-area soft soil cofferdam engineering construction technology in a harbor area. The technology comprises the steps that 1, construction preparation and site leveling arecarried out; 2, positioning, measuring and paying off are carried out; 3, woven bags are laid; 4, medium-coarse sand is backfilled and overseam is carried out on the woven bags; 5, a sealing wall ismachined; 6, settlement monitoring marks are buried; 7, a layer of earthwork is backfilled; 8, earthwork backfilling of the second layer and the third layer is carried out; 9, the woven cloths are laid; 10, bagged soil sub-cofferdam construction is carried out; and 11, monitoring and transferring cofferdams are carried out. The engineering cofferdams are arranged inwards along the periphery of a large-area soft soil block boundary in the harbor area, the cofferdams on the periphery of a reclamation area are not affected by open sea stormy waves, and the cofferdam structure needs to meet the reclamation water retaining requirement; the surface soil of the engineering position is plain fill, the foundation treatment adopts a scheme of drainage sand quilts and woven cloth plastic drainage plates, a layer of drainage sand quilts is laid at the bottoms of the cofferdams, and the woven cloth plastic drainage plates are arranged, so that the large-area soft soil cofferdam in the harbor area is facilitated.
本发明公开了一种港区大面积软土围埝工程施工工艺，包括步骤一，施工准备与场地平整；步骤二，定位测量放线；步骤三，铺设编织袋；步骤四，回填中粗砂与包缝编织布；步骤五，密封墙加工；步骤六，埋设沉降监测标；步骤七，回填土方一层；步骤八，土方回填第二与第三层；步骤九，铺设编织布；步骤十，袋装土子埝施工和步骤十一，监测移交围埝；本工程围埝沿港区大面积软土地块边界四周向内布置，吹填区四周围埝均不受外海风浪影响，围埝结构需满足吹填挡水要求；本工程位置表层土质为素填土，地基处理采用排水砂被与编织布塑料排水板方案，在围埝底部铺设一层排水砂被，并打设编织布塑料排水板，更有利于港区大面积软土围埝。
Large-area soft soil cofferdam engineering construction technology in harbor area
The invention discloses a large-area soft soil cofferdam engineering construction technology in a harbor area. The technology comprises the steps that 1, construction preparation and site leveling arecarried out; 2, positioning, measuring and paying off are carried out; 3, woven bags are laid; 4, medium-coarse sand is backfilled and overseam is carried out on the woven bags; 5, a sealing wall ismachined; 6, settlement monitoring marks are buried; 7, a layer of earthwork is backfilled; 8, earthwork backfilling of the second layer and the third layer is carried out; 9, the woven cloths are laid; 10, bagged soil sub-cofferdam construction is carried out; and 11, monitoring and transferring cofferdams are carried out. The engineering cofferdams are arranged inwards along the periphery of a large-area soft soil block boundary in the harbor area, the cofferdams on the periphery of a reclamation area are not affected by open sea stormy waves, and the cofferdam structure needs to meet the reclamation water retaining requirement; the surface soil of the engineering position is plain fill, the foundation treatment adopts a scheme of drainage sand quilts and woven cloth plastic drainage plates, a layer of drainage sand quilts is laid at the bottoms of the cofferdams, and the woven cloth plastic drainage plates are arranged, so that the large-area soft soil cofferdam in the harbor area is facilitated.
本发明公开了一种港区大面积软土围埝工程施工工艺，包括步骤一，施工准备与场地平整；步骤二，定位测量放线；步骤三，铺设编织袋；步骤四，回填中粗砂与包缝编织布；步骤五，密封墙加工；步骤六，埋设沉降监测标；步骤七，回填土方一层；步骤八，土方回填第二与第三层；步骤九，铺设编织布；步骤十，袋装土子埝施工和步骤十一，监测移交围埝；本工程围埝沿港区大面积软土地块边界四周向内布置，吹填区四周围埝均不受外海风浪影响，围埝结构需满足吹填挡水要求；本工程位置表层土质为素填土，地基处理采用排水砂被与编织布塑料排水板方案，在围埝底部铺设一层排水砂被，并打设编织布塑料排水板，更有利于港区大面积软土围埝。
Large-area soft soil cofferdam engineering construction technology in harbor area
一种港区大面积软土围埝工程施工工艺
WANG TAO (author) / QIN JIAN (author) / YIN FENG (author) / WANG YONGLIANG (author) / JIANG MINGJIE (author)
2020-11-06
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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