Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for foundation backfilling during sand backfill reclamation in coastal area
The invention discloses a construction method for foundation backfilling during sand backfill reclamation in a coastal area, and relates to the technical field of foundation backfilling in coastal areas. The main construction steps include earth excavation, foundation groove inspection, mattress layer construction, dewatering, foundation bed and foundation layer construction and hill-surface stone backfilling, a mattress layer is backfilled with broken stones, a drainage ditch is formed in one side of a foundation, a water collecting well is reserved in the drainage ditch, a sewage pump is installed in the water collecting well for dewatering in a foundation pit, water is discharged out of the pit through a drainage pipe, during foundation bed and foundation layer construction, the water only needs to be lowered to the position below the top face of the mattress layer, hill-surface stone backfilling are gradually performed after foundation layer construction is finished, hill-skill stones are tamped in a layered mode, the water collecting well and the sewage pump gradually rise along with a backfilling face, and the sewage pump and the drainage pipe are dismantled after backfilling is conducted to the position above the underground water level. According to the method, the problems that a foundation trench collapses and the side slope slides due to the fact that underground soil is soft, the water level is high and quicksand in the foundation trench flows out along with the sewage pump are effectively solved, operation is easy, and the construction process cost is low.
本发明公开了一种沿海地区吹填砂造地地基基础回填的施工方法，涉及沿海地区地基回填技术领域。主要施工步骤为土方开挖、地基验槽、褥垫层施工、降水、基础垫层和基础层施工、山皮石回填，褥垫层采用碎石回填并在基础一侧排水沟，排水沟内留有集水井，集水井内安装排污水泵进行基坑内降水，降水通过排水管排到坑外，基础垫层及基础层施工时仅需降水至褥垫层顶面以下，基础层施工结束后逐渐回填山皮石，并分层夯实，集水井和排污水泵随回填面逐渐升高，直至回填至地下水位以上后，拆除排污水泵及排水管。本发明有效解决了地下土质较软、水位高、基槽内流沙随排污水泵流出而导致基槽坍塌和边坡滑动的问题，操作简单，施工过程成本低。
Construction method for foundation backfilling during sand backfill reclamation in coastal area
The invention discloses a construction method for foundation backfilling during sand backfill reclamation in a coastal area, and relates to the technical field of foundation backfilling in coastal areas. The main construction steps include earth excavation, foundation groove inspection, mattress layer construction, dewatering, foundation bed and foundation layer construction and hill-surface stone backfilling, a mattress layer is backfilled with broken stones, a drainage ditch is formed in one side of a foundation, a water collecting well is reserved in the drainage ditch, a sewage pump is installed in the water collecting well for dewatering in a foundation pit, water is discharged out of the pit through a drainage pipe, during foundation bed and foundation layer construction, the water only needs to be lowered to the position below the top face of the mattress layer, hill-surface stone backfilling are gradually performed after foundation layer construction is finished, hill-skill stones are tamped in a layered mode, the water collecting well and the sewage pump gradually rise along with a backfilling face, and the sewage pump and the drainage pipe are dismantled after backfilling is conducted to the position above the underground water level. According to the method, the problems that a foundation trench collapses and the side slope slides due to the fact that underground soil is soft, the water level is high and quicksand in the foundation trench flows out along with the sewage pump are effectively solved, operation is easy, and the construction process cost is low.
本发明公开了一种沿海地区吹填砂造地地基基础回填的施工方法，涉及沿海地区地基回填技术领域。主要施工步骤为土方开挖、地基验槽、褥垫层施工、降水、基础垫层和基础层施工、山皮石回填，褥垫层采用碎石回填并在基础一侧排水沟，排水沟内留有集水井，集水井内安装排污水泵进行基坑内降水，降水通过排水管排到坑外，基础垫层及基础层施工时仅需降水至褥垫层顶面以下，基础层施工结束后逐渐回填山皮石，并分层夯实，集水井和排污水泵随回填面逐渐升高，直至回填至地下水位以上后，拆除排污水泵及排水管。本发明有效解决了地下土质较软、水位高、基槽内流沙随排污水泵流出而导致基槽坍塌和边坡滑动的问题，操作简单，施工过程成本低。
Construction method for foundation backfilling during sand backfill reclamation in coastal area
沿海地区吹填砂造地地基基础回填的施工方法
ZHANG DONGJUN (Autor:in) / CAO TONGHUI (Autor:in) / YANG DAN (Autor:in)
13.07.2021
Patent
Elektronische Ressource
Chinesisch
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