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A platform for research: civil engineering, architecture and urbanism
CONSTRUCTION METHOD OF UNDERWATER BOTTOM SEALING OF OPEN CAISSON FOUNDATION BY CONCRETING
The present disclosure discloses a construction method of underwater bottom sealing of an open caisson foundation by concreting, including the following steps: sinking an open caisson to a designed elevation and then adding water to the open caisson until a water level inside the open caisson is identical to that outside the open caisson; throwing broken stone to the bottom of the open caisson until the bottom of the open caisson is completely covered with the broken stone; and placing a delivery pipe of a concrete pump truck into the open caisson and pouring concrete until the open caisson foundation is constructed. According to the present disclosure, water is injected into the open caisson such that a water pressure inside the open caisson is the same as that on the outer wall of the open caisson, thereby guaranteeing the stability of the open caisson during bottom sealing construction. Meantime, a pump pipe of the concrete pump truck may directly extend into the bottom sealing position of the open caisson foundation, so that pouring of bottom sealing concrete can be completed without changing a guide pipe. The construction method is simple and convenient and improves the construction efficiency. DRAWING - FIG 3 -3/3
CONSTRUCTION METHOD OF UNDERWATER BOTTOM SEALING OF OPEN CAISSON FOUNDATION BY CONCRETING
The present disclosure discloses a construction method of underwater bottom sealing of an open caisson foundation by concreting, including the following steps: sinking an open caisson to a designed elevation and then adding water to the open caisson until a water level inside the open caisson is identical to that outside the open caisson; throwing broken stone to the bottom of the open caisson until the bottom of the open caisson is completely covered with the broken stone; and placing a delivery pipe of a concrete pump truck into the open caisson and pouring concrete until the open caisson foundation is constructed. According to the present disclosure, water is injected into the open caisson such that a water pressure inside the open caisson is the same as that on the outer wall of the open caisson, thereby guaranteeing the stability of the open caisson during bottom sealing construction. Meantime, a pump pipe of the concrete pump truck may directly extend into the bottom sealing position of the open caisson foundation, so that pouring of bottom sealing concrete can be completed without changing a guide pipe. The construction method is simple and convenient and improves the construction efficiency. DRAWING - FIG 3 -3/3
CONSTRUCTION METHOD OF UNDERWATER BOTTOM SEALING OF OPEN CAISSON FOUNDATION BY CONCRETING
ZHANG XIN (author) / CAO WENQUAN (author) / ZHANG XIANGPING (author)
2021-10-28
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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