A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Precipitation-free finished foundation bed construction method
The invention discloses a precipitation-free finished foundation cushion construction method. The method comprises the steps that a pit is dug in an earthwork with water within a foundation range; manufacturing a caisson with the same shape as the bottom surface of the pit slot; the caisson is arranged in the pit slot, and water is injected into the caisson while the caisson is arranged in the pit slot; after the caisson is arranged in place and water is injected into the caisson stably, concrete is poured into pit slots in the periphery of the caisson; and after the concrete around the caisson is finally set, water in the caisson is pumped out. And after the water in the caisson is discharged, a grouting pipe at the bottom of the caisson is connected to the position above the underground water level line and is connected with a grouting pump to conduct pressure grouting operation, and grouting reinforcement treatment is conducted on the foundation. Through the idea and method innovation that precipitation-free cushion construction and foundation treatment are carried out at the same time, the technical measures that steel bar hooks are additionally arranged on the outer side of the uncovered steel plate caisson, a grouting valve is additionally arranged at the bottom of the uncovered steel plate caisson and the like are adopted, and a series of technical problems of precipitation-free foundation cushion construction, floating of the caisson cushion, foundation treatment under the caisson and the like are effectively solved.
本发明公开一种免降水成品基础垫层施工方法，包括：基础范围内土方带水开挖坑槽；制作和坑槽底面形状相同的沉箱；沉箱下设于坑槽内，并且边下设边向沉箱内注水；待沉箱下设到位且沉箱内注水稳定后，向沉箱四周的坑槽内浇筑混凝土；待沉箱四周混凝土终凝后，将沉箱内的水抽出。沉箱内的水排出后，将沉箱底注浆管接至地下水位线以上，并连接注浆泵进行压力注浆作业，对地基进行注浆加固处理。本发明通过免降水垫层施工与地基处理同时进行的思路和方法创新，采用无盖钢板沉箱外侧加装钢筋弯钩、底部加装注浆阀门等技术措施，有效解决了基础垫层施工免降水、沉箱垫层存在的上浮及沉箱下地基处理等一系列技术难题。
Precipitation-free finished foundation bed construction method
The invention discloses a precipitation-free finished foundation cushion construction method. The method comprises the steps that a pit is dug in an earthwork with water within a foundation range; manufacturing a caisson with the same shape as the bottom surface of the pit slot; the caisson is arranged in the pit slot, and water is injected into the caisson while the caisson is arranged in the pit slot; after the caisson is arranged in place and water is injected into the caisson stably, concrete is poured into pit slots in the periphery of the caisson; and after the concrete around the caisson is finally set, water in the caisson is pumped out. And after the water in the caisson is discharged, a grouting pipe at the bottom of the caisson is connected to the position above the underground water level line and is connected with a grouting pump to conduct pressure grouting operation, and grouting reinforcement treatment is conducted on the foundation. Through the idea and method innovation that precipitation-free cushion construction and foundation treatment are carried out at the same time, the technical measures that steel bar hooks are additionally arranged on the outer side of the uncovered steel plate caisson, a grouting valve is additionally arranged at the bottom of the uncovered steel plate caisson and the like are adopted, and a series of technical problems of precipitation-free foundation cushion construction, floating of the caisson cushion, foundation treatment under the caisson and the like are effectively solved.
本发明公开一种免降水成品基础垫层施工方法，包括：基础范围内土方带水开挖坑槽；制作和坑槽底面形状相同的沉箱；沉箱下设于坑槽内，并且边下设边向沉箱内注水；待沉箱下设到位且沉箱内注水稳定后，向沉箱四周的坑槽内浇筑混凝土；待沉箱四周混凝土终凝后，将沉箱内的水抽出。沉箱内的水排出后，将沉箱底注浆管接至地下水位线以上，并连接注浆泵进行压力注浆作业，对地基进行注浆加固处理。本发明通过免降水垫层施工与地基处理同时进行的思路和方法创新，采用无盖钢板沉箱外侧加装钢筋弯钩、底部加装注浆阀门等技术措施，有效解决了基础垫层施工免降水、沉箱垫层存在的上浮及沉箱下地基处理等一系列技术难题。
Precipitation-free finished foundation bed construction method
一种免降水成品基础垫层施工方法
YU DESHUANG (author) / LIU WENLONG (author) / WANG HE (author) / LIU JIAYU (author) / YU DACHUAN (author) / ZHANG MINGDA (author)
2023-05-26
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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