Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Large-diameter circular ultra-deep foundation pit reverse construction structure without inner support and construction method
The invention discloses a large-diameter circular ultra-deep foundation pit reverse construction structure without an inner support and a construction method, and belongs to the field of deep foundation pit supporting. The large-diameter circular ultra-deep foundation pit reverse construction structure comprises an underground diaphragm wall and a lining wall, wherein the underground diaphragm wall and the lining wall are cylindrical, the cross section of the underground diaphragm wall and the cross section of the lining wall are circular, the lining wall is attached to the inner wall of the underground diaphragm wall and connected with the underground diaphragm wall into a whole, and the underground diaphragm wall is formed by milling a plurality of I-stage groove sections and II-stage groove sections into a whole. The construction method comprises the following steps of firstly, building the diaphragm wall and crown beams, then excavating along the periphery of the diaphragm wall to form a first central island, building a first lining wall by fitting the diaphragm wall, connecting the first lining wall with the diaphragm wall on the periphery of the first lining wall into a whole, then carrying out basin-type excavation on the central island, excavating along the diaphragm wall again to form a second central island, building the next lining wall by attaching the underground diaphragm wall, carrying out basin type excavation on the next central island, and repeating the steps in sequence till the whole lining wall and the bottom plate are built from top to bottom. According to the method, the construction period is shortened, the manufacturing cost is saved, and water seepage and leakage risks are reduced.
本发明公开一种无内支撑的大直径圆形超深基坑逆作结构及施工方法，属于深基坑支护领域，且包括地连墙和内衬墙，地连墙和内衬墙均为圆筒状，横截面为圆形，且内衬墙贴合于地连墙内壁并相互连接为一体，地连墙由多个Ⅰ期槽段和Ⅱ期槽段相互铣接为一体。施工包括的步骤为：先建造地连墙和冠梁，然后沿地连墙周边开挖，形成第一中心岛，贴合地连墙建造第一道内衬墙，第一道内衬墙与其周边的地连墙连接为一体，接着，在中心岛上进行盆式开挖并再次沿着地连墙开挖，并贴合地连墙建造下一道内衬墙，在下一个中心岛上进行盆式开挖，如此依次重复如上步骤，直至从上至下建造完成整个内衬墙和底板。本发明方法缩短了工期，节约了造价，降低了渗水漏水风险。
Large-diameter circular ultra-deep foundation pit reverse construction structure without inner support and construction method
The invention discloses a large-diameter circular ultra-deep foundation pit reverse construction structure without an inner support and a construction method, and belongs to the field of deep foundation pit supporting. The large-diameter circular ultra-deep foundation pit reverse construction structure comprises an underground diaphragm wall and a lining wall, wherein the underground diaphragm wall and the lining wall are cylindrical, the cross section of the underground diaphragm wall and the cross section of the lining wall are circular, the lining wall is attached to the inner wall of the underground diaphragm wall and connected with the underground diaphragm wall into a whole, and the underground diaphragm wall is formed by milling a plurality of I-stage groove sections and II-stage groove sections into a whole. The construction method comprises the following steps of firstly, building the diaphragm wall and crown beams, then excavating along the periphery of the diaphragm wall to form a first central island, building a first lining wall by fitting the diaphragm wall, connecting the first lining wall with the diaphragm wall on the periphery of the first lining wall into a whole, then carrying out basin-type excavation on the central island, excavating along the diaphragm wall again to form a second central island, building the next lining wall by attaching the underground diaphragm wall, carrying out basin type excavation on the next central island, and repeating the steps in sequence till the whole lining wall and the bottom plate are built from top to bottom. According to the method, the construction period is shortened, the manufacturing cost is saved, and water seepage and leakage risks are reduced.
本发明公开一种无内支撑的大直径圆形超深基坑逆作结构及施工方法，属于深基坑支护领域，且包括地连墙和内衬墙，地连墙和内衬墙均为圆筒状，横截面为圆形，且内衬墙贴合于地连墙内壁并相互连接为一体，地连墙由多个Ⅰ期槽段和Ⅱ期槽段相互铣接为一体。施工包括的步骤为：先建造地连墙和冠梁，然后沿地连墙周边开挖，形成第一中心岛，贴合地连墙建造第一道内衬墙，第一道内衬墙与其周边的地连墙连接为一体，接着，在中心岛上进行盆式开挖并再次沿着地连墙开挖，并贴合地连墙建造下一道内衬墙，在下一个中心岛上进行盆式开挖，如此依次重复如上步骤，直至从上至下建造完成整个内衬墙和底板。本发明方法缩短了工期，节约了造价，降低了渗水漏水风险。
Large-diameter circular ultra-deep foundation pit reverse construction structure without inner support and construction method
一种无内支撑的大直径圆形超深基坑逆作结构及施工方法
YU DUNMENG (Autor:in) / CHEN JIANBIN (Autor:in) / HE LIHONG (Autor:in) / HU YUNHUA (Autor:in) / LU FANGWEI (Autor:in) / YANG WEIXING (Autor:in) / FAN WEI (Autor:in) / DAI ANG (Autor:in) / CAI QING (Autor:in) / LIU YANLING (Autor:in)
04.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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