Frame culvert segment long-line method multi-directional matching prefabrication process and frame culvert segment formwork system
A technology of frame culvert and long-line method, which is applied to the construction field of frame culvert segments in urban underpass engineering to achieve the effect of ensuring tightness
Inactive Publication Date: 2016-03-30
CCCC THIRD HARBOR ENG +1
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Problems solved by technology
[0005] Aiming at the assembly joint problem existing in the construction process of existing frame culvert segments, the purpose of the present invention is to provide a frame culvert segment long-line method multi-directional matching prefabrication process to solve this technical problem
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[0042] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0043] The present invention adopts the long-line multi-directional matching prefabrication process to prefabricate the frame culvert segments. In the process, the long-line method matching prefabrication is firstly performed, and then the horizontal matching prefabrication is performed to complete the prefabrication of the frame culvert segments.
[0044] Among them, the long-line method is matched prefabrication, that is, according to the line shape designed for each span of the prefabricated section, a prefabricated section of one span is divided into several segments of equal length on a long-line pedestal for matching prefabrication. After the prefabrication of one section is completed, the side formwork is moved to the next section to ...
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The invention discloses a frame culvert segment longline multidirectional matching precasting process and a frame culvert segment die plate system. The process comprises the following steps: 1, firstly, arranging a segment precasting longline pedestal according to different length combinations and line shape requirements of a frame culvert precast segment; 2, dividing the frame culvert precast segment into a plurality of short segments and dividing each short segment into two parts in the height direction to form an upper segment and a lower segment; 3, matching and precasting the lower segments of a frame culvert segment one by one by a longline matching precasting method; and 4, transversely matching and precasting the corresponding upper segments by using the upper end faces of the lower segments as matching surfaces and in the longitudinal direction, also matching and precasting the adjacent upper segments one by one by adopting the longline matching precasting method. According to the scheme provided by the invention, tightness of spliced seams between the segments can be ensured and meanwhile, after splicing is completed, the integral line shape accords with the design requirement.
Description
technical field [0001] The invention relates to the construction technology of the urban underpass, in particular to the construction technology of the frame culvert segment in the urban underpass project. Background technique [0002] The frame culvert segment is the main structure of the urban underpass project, which is divided into two types: single hole and double hole. [0003] see figure 1 and figure 2 , the section form of segmental frame culvert includes single hole and double hole. It is two "U-shaped" segments up and down, with a height of 3.6m; the height of the double-hole culvert is 7.2m, the width of the culvert is 19.9m, the thickness of the roof and side walls is 0.7m, the thickness of the middle wall is 0.6m, and the thickness of the bottom plate is 0.8m. The standard section is 2m long, and is divided into two "mountain-shaped" sections in the horizontal direction, with a height of 3.6m. [0004] Due to the limitation of the net height of hoisting mac...
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IPC IPC(8): E01D21/00
Inventor 蔡清程唐建明段德恩钟士金蔡伟
Owner CCCC THIRD HARBOR ENG