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A platform for research: civil engineering, architecture and urbanism
Construction method for metro deep foundation pit separated warehouse in-advance enclosing
The invention discloses a construction method for metro deep foundation pit separate warehouse in-advance enclosing. The construction method comprises the steps that the constructable range of a metro station structure is selected; constructing a first enclosure site surrounding the constructable range on the periphery of the constructable range; constructing an enclosure structure underground diaphragm wall within the constructable range in the first enclosure site; a plain concrete partition wall is constructed in the constructable range, and the two ends of the plain concrete partition wall are connected with the enclosure structure underground diaphragm wall constructed in the first enclosure site to form an enclosure space; foundation pit excavation and foundation pit inner supporting structure construction are carried out in the enclosed space, step-by-step sloping is carried out on the side close to the plain concrete bin dividing wall during foundation pit excavation, water and soil pressure balance is carried out on unexcavated soil on the opposite side of the plain concrete bin dividing wall, deep foundation pit bin dividing construction can be closed in advance, and the construction efficiency is improved. The continuity of station construction is effectively guaranteed, and the pressure of station construction period performance and cost in the later period is greatly relieved.
本发明公开了一种用于地铁深基坑分仓提前围闭的施工方法，包括步骤：选定地铁车站结构的可施工范围；于可施工范围外围施工包围所述可施工范围的第一封围场地；于所述第一封围场地内施工所述可施工范围的围护结构地下连续墙；于所述可施工范围内施工素混凝土分仓墙，所述素混凝土分仓墙的两端与所述第一封围场地内施工的所述围护结构地下连续墙连接，形成围闭空间；于所述围闭空间内进行基坑开挖及基坑内支撑结构施工，在基坑开挖时对靠近所述素混凝土分仓墙一侧进行分台阶放坡，与所述素混凝土分仓墙对侧未开挖的土体进行水土压力平衡，能过使得深基坑分仓施工提前封闭，有效保证车站施工的可连续性，大幅缓解后期车站工期履约和成本压力。
Construction method for metro deep foundation pit separated warehouse in-advance enclosing
The invention discloses a construction method for metro deep foundation pit separate warehouse in-advance enclosing. The construction method comprises the steps that the constructable range of a metro station structure is selected; constructing a first enclosure site surrounding the constructable range on the periphery of the constructable range; constructing an enclosure structure underground diaphragm wall within the constructable range in the first enclosure site; a plain concrete partition wall is constructed in the constructable range, and the two ends of the plain concrete partition wall are connected with the enclosure structure underground diaphragm wall constructed in the first enclosure site to form an enclosure space; foundation pit excavation and foundation pit inner supporting structure construction are carried out in the enclosed space, step-by-step sloping is carried out on the side close to the plain concrete bin dividing wall during foundation pit excavation, water and soil pressure balance is carried out on unexcavated soil on the opposite side of the plain concrete bin dividing wall, deep foundation pit bin dividing construction can be closed in advance, and the construction efficiency is improved. The continuity of station construction is effectively guaranteed, and the pressure of station construction period performance and cost in the later period is greatly relieved.
本发明公开了一种用于地铁深基坑分仓提前围闭的施工方法，包括步骤：选定地铁车站结构的可施工范围；于可施工范围外围施工包围所述可施工范围的第一封围场地；于所述第一封围场地内施工所述可施工范围的围护结构地下连续墙；于所述可施工范围内施工素混凝土分仓墙，所述素混凝土分仓墙的两端与所述第一封围场地内施工的所述围护结构地下连续墙连接，形成围闭空间；于所述围闭空间内进行基坑开挖及基坑内支撑结构施工，在基坑开挖时对靠近所述素混凝土分仓墙一侧进行分台阶放坡，与所述素混凝土分仓墙对侧未开挖的土体进行水土压力平衡，能过使得深基坑分仓施工提前封闭，有效保证车站施工的可连续性，大幅缓解后期车站工期履约和成本压力。
Construction method for metro deep foundation pit separated warehouse in-advance enclosing
一种用于地铁深基坑分仓提前围闭的施工方法
LI BING (author) / ZHANG XINWANG (author) / LIU MENG (author) / SONG HONGCHANG (author) / LOU XIAOLIANG (author)
2022-11-01
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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