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A platform for research: civil engineering, architecture and urbanism
Construction method of offshore deeply-buried weathered rock stratum non-drainage cofferdam
The invention discloses a construction method of an offshore deeply-buried weathered rock stratum undrained cofferdam, which comprises the following steps of: inserting and driving a plurality of steel pipe piles which are annularly arranged to form a cofferdam main body; a supporting frame structure is installed on the inner side of the cofferdam body at a time; a gate plate is installed between every two adjacent steel pipe piles; sea mud in the cofferdam main body is excavated for multiple times, and a supporting frame structure is installed on the inner side of the cofferdam main body in a matched mode for multiple times; finally, the sea mud in the cofferdam body is excavated to the final preset position of the sea mud; and a concrete cushion layer is poured to the bottom of the cofferdam body, so that the non-drainage cofferdam is formed. The construction method of the offshore deeply-buried weathered rock stratum non-drainage cofferdam is used for building the offshore deeply-buried weathered rock stratum non-drainage cofferdam, so that a machine head of a tunnel boring machine is recycled in water, and the offshore deeply-buried weathered rock stratum non-drainage cofferdam is small in work amount, high in construction speed and low in comprehensive building cost.
本发明公开一种近海深埋风化岩层不排水围堰的施工方法，近海深埋风化岩层不排水围堰的施工方法包括以下步骤：插打呈环形布设的多根钢管桩，以形成围堰主体；在所述围堰主体内侧一次安装支撑框结构；在每相邻两根所述钢管桩之间安装闸板；多次开挖所述围堰主体内的海泥，并配合多次在所述围堰主体内侧安装支撑框结构；最终开挖所述围堰主体内的海泥至海泥终预设位置；浇筑混凝土垫层至所述围堰主体的底部，以形成不排水围堰。本发明提供的近海深埋风化岩层不排水围堰的施工方法，用于建造近海深埋风化岩层不排水围堰，从而在水中进行隧道掘进机的机头回收，所述近海深埋风化岩层不排水围堰的工程量少，施工速度快，建造的综合成本降低。
Construction method of offshore deeply-buried weathered rock stratum non-drainage cofferdam
The invention discloses a construction method of an offshore deeply-buried weathered rock stratum undrained cofferdam, which comprises the following steps of: inserting and driving a plurality of steel pipe piles which are annularly arranged to form a cofferdam main body; a supporting frame structure is installed on the inner side of the cofferdam body at a time; a gate plate is installed between every two adjacent steel pipe piles; sea mud in the cofferdam main body is excavated for multiple times, and a supporting frame structure is installed on the inner side of the cofferdam main body in a matched mode for multiple times; finally, the sea mud in the cofferdam body is excavated to the final preset position of the sea mud; and a concrete cushion layer is poured to the bottom of the cofferdam body, so that the non-drainage cofferdam is formed. The construction method of the offshore deeply-buried weathered rock stratum non-drainage cofferdam is used for building the offshore deeply-buried weathered rock stratum non-drainage cofferdam, so that a machine head of a tunnel boring machine is recycled in water, and the offshore deeply-buried weathered rock stratum non-drainage cofferdam is small in work amount, high in construction speed and low in comprehensive building cost.
本发明公开一种近海深埋风化岩层不排水围堰的施工方法，近海深埋风化岩层不排水围堰的施工方法包括以下步骤：插打呈环形布设的多根钢管桩，以形成围堰主体；在所述围堰主体内侧一次安装支撑框结构；在每相邻两根所述钢管桩之间安装闸板；多次开挖所述围堰主体内的海泥，并配合多次在所述围堰主体内侧安装支撑框结构；最终开挖所述围堰主体内的海泥至海泥终预设位置；浇筑混凝土垫层至所述围堰主体的底部，以形成不排水围堰。本发明提供的近海深埋风化岩层不排水围堰的施工方法，用于建造近海深埋风化岩层不排水围堰，从而在水中进行隧道掘进机的机头回收，所述近海深埋风化岩层不排水围堰的工程量少，施工速度快，建造的综合成本降低。
Construction method of offshore deeply-buried weathered rock stratum non-drainage cofferdam
近海深埋风化岩层不排水围堰的施工方法
ZHANG BAOPING (author) / JIA DEDENG (author) / WANG JIYE (author)
2022-04-29
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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