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A platform for research: civil engineering, architecture and urbanism
Bearing platform separate-bin excavation construction method and device under limited operation space
The invention belongs to the technical field of civil engineering construction, and particularly relates to a bearing platform separate-bin excavation construction method and device under a limited operation space. The bearing platform separate-bin excavation construction method and device under the limited operation space aim to solve the problem that excavation of a bearing platform foundation pit on the lower portion of a bridge cannot give consideration to traffic operation. The method comprises the steps that firstly, the bearing platform foundation pit is subjected to bin separation, anda multifunctional rectangular tool pipe is driven into the bearing platform foundation pit to form a boundary; then, soil body separate-bin excavation and bearing platform structure concrete construction are conducted; and finally, after bearing platform structure concrete maintenance is completed, the multifunctional rectangular tool pipe serving as a construction formwork on the bearing platform boundary is pulled out. The device is the multifunctional rectangular tool pipe and comprises an upper standard joint and a lower detachable baffle, and the detachable baffle has three forms to achieve the functions of an enclosure structure, the construction formwork and the bin separation boundary correspondingly. Through combined application of the standard joint and the detachable baffle inthe horizontal direction and the vertical direction, simultaneous construction of multiple operation faces of bearing platform earthwork separate bins is achieved, the construction procedure is simplified, and interference of construction to urban operation is reduced.
本发明属于土木工程施工技术领域，特别涉及一种有限作业空间下承台分仓开挖施工方法及装置，目的在于解决桥梁下部承台基坑开挖无法兼顾交通运行的问题。该方法，首先对承台基坑进行分仓，并打入多功能矩形工具管形成边界；然后进行土体分仓开挖和承台结构混凝土施工；最后承台结构混凝土养护完成后拔除承台边界的作为施工模板的多功能矩形工具管。装置为多功能矩形工具管，包括上部标准节和下部可拆卸挡板，可拆卸挡板包括三种形式，分别实现围护结构、施工模板以及分仓边界的功能。通过标准节和可拆卸挡板在水平方向和垂直方向的组合运用，实现了承台土方分仓多作业面同时施工，简化了施工工序、降低了施工对城市运行的干扰。
Bearing platform separate-bin excavation construction method and device under limited operation space
The invention belongs to the technical field of civil engineering construction, and particularly relates to a bearing platform separate-bin excavation construction method and device under a limited operation space. The bearing platform separate-bin excavation construction method and device under the limited operation space aim to solve the problem that excavation of a bearing platform foundation pit on the lower portion of a bridge cannot give consideration to traffic operation. The method comprises the steps that firstly, the bearing platform foundation pit is subjected to bin separation, anda multifunctional rectangular tool pipe is driven into the bearing platform foundation pit to form a boundary; then, soil body separate-bin excavation and bearing platform structure concrete construction are conducted; and finally, after bearing platform structure concrete maintenance is completed, the multifunctional rectangular tool pipe serving as a construction formwork on the bearing platform boundary is pulled out. The device is the multifunctional rectangular tool pipe and comprises an upper standard joint and a lower detachable baffle, and the detachable baffle has three forms to achieve the functions of an enclosure structure, the construction formwork and the bin separation boundary correspondingly. Through combined application of the standard joint and the detachable baffle inthe horizontal direction and the vertical direction, simultaneous construction of multiple operation faces of bearing platform earthwork separate bins is achieved, the construction procedure is simplified, and interference of construction to urban operation is reduced.
本发明属于土木工程施工技术领域，特别涉及一种有限作业空间下承台分仓开挖施工方法及装置，目的在于解决桥梁下部承台基坑开挖无法兼顾交通运行的问题。该方法，首先对承台基坑进行分仓，并打入多功能矩形工具管形成边界；然后进行土体分仓开挖和承台结构混凝土施工；最后承台结构混凝土养护完成后拔除承台边界的作为施工模板的多功能矩形工具管。装置为多功能矩形工具管，包括上部标准节和下部可拆卸挡板，可拆卸挡板包括三种形式，分别实现围护结构、施工模板以及分仓边界的功能。通过标准节和可拆卸挡板在水平方向和垂直方向的组合运用，实现了承台土方分仓多作业面同时施工，简化了施工工序、降低了施工对城市运行的干扰。
Bearing platform separate-bin excavation construction method and device under limited operation space
一种有限作业空间下承台分仓开挖施工方法及装置
WANG XINXIN (author) / CHENG ZICONG (author) / ZHANG AJIN (author) / SUN LIANWEI (author) / SHEN RONG (author)
2020-12-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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