Sequence excavation top ring beam sharing device of adjacent foundation pits and its constructing method
A technology of adjacent foundation pits and construction methods, applied in excavation, infrastructure engineering, artificial islands, etc., can solve the problems of increasing construction costs and construction period, repeated construction of common walls, top ring beams, repeated construction, etc.
Active Publication Date: 2014-08-27
NO 2 CONSTR GRP CO LTD OF SHANGHAI CONSTR GRP
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Problems solved by technology
[0004] The present invention is aimed at the prior art, the traditional common wall top ring beams of adjacent foundation pits need to carry out the secondary construction of the top ring beams of adjacent foundation pits after the construction of one foundation pit is completed, resulting in the common wall top ring beams Repeated construction, increase construction cost and construction period and other defects Provide a shared device for top ring beams excavated successively in adjacent foundation pits
[0005] Another purpose of the present invention is to aim at the prior art, the traditional common wall top ring beam of adjacent foundation pit needs to carry out the secondary construction of the top ring beam of adjacent foundation pit after the construction of a foundation pit is completed and removed, resulting in a common wall. Repeated construction of ring beams on the top of the wall, increasing construction costs and construction period and other defects Provide a construction method of successively excavating adjacent foundation pits
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[0017] In order to illustrate the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0018] see figure 1 , figure 1 Shown is a structural schematic diagram of the present invention for the successive excavation of adjacent foundation pits and the shared device for top ring beams. The roof ring beam sharing device 1 is arranged between the first support 2 of the foundation pit excavated first and the first support 3 of the foundation pit excavated later. Specifically, the top ring beam sharing device 1 has a top ring beam 10, and the top ring beam 10 further includes a top ring beam steel bar 11 arranged transversely, and a straight threaded steel bar connected to the top ring beam 10. Bargeer 12. The first support 2 of the excavated foundation pit includes a first steel bar 20 . One end of the first steel bar 20 is a...
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A sequence excavation top ring beam sharing device of adjacent foundation pits is arranged between an earlier excavation pit first support and a later excavation pit first support, is provided with a top ring beam; the top ring beam further includes horizontally arranged top ring beam steel bars and a straight thread steel bar connector arranged inside the top ring beam; one end of the connector is anchored in the top ring beam through steel bars; and the head of the other end of the connector is sealed through a sealing cover, and the connector is connected with second steel bars during the construction of the later excavation pit first support. According to the invention, when the first concrete top ring beam is constructed at the earlier excavation pit first support, the connector for the second steel bars of the later excavation pit first support is pre-buried, and the second steel bars are connected with the connector during the construction of the later excavation pit first support, so that the repeated dismantlement of the top ring beam of a midboard is avoided.
Description
technical field [0001] The invention relates to the technical field of construction engineering, in particular to a shared device and construction method for top ring beams excavated successively in adjacent foundation pits. Background technique [0002] At present, with the development of modern deep and large foundation pits according to the surrounding environment and construction period requirements, more and more adjacent foundation pits are excavated successively according to the working conditions in foundation pit construction. The top ring beam of the common wall needs to be reconstructed for the top ring beam of the adjacent foundation pit after the construction of a foundation pit is completed, resulting in repeated construction of the top ring beam of the common wall, which increases the construction cost and construction period. [0003] Therefore, in view of the problems existing in the existing technology, the designer of this case actively researched and impr...
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IPC IPC(8): E02D17/02E02D29/045
Inventor 范卓烨曹巍姜春慧
Owner NO 2 CONSTR GRP CO LTD OF SHANGHAI CONSTR GRP