Reusable reinforced concrete composite pile available for on-load segmental disassembly and construction method of reusable reinforced concrete composite pile available for on-load segmental disassembly
A combined pile and load-carrying technology, which is applied to sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of non-reusable, long construction period, and increased cost, and achieve the effect of avoiding the cost of construction measures
Active Publication Date: 2013-08-07
CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
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Problems solved by technology
Based on the existing construction method, it can only be set repeatedly, which leads to an increase in cost and a long construction period; the upper steel structure of the temporary steel-concrete composite pile used in the existing construction method mostly adopts integrally welded steel pipes or Steel lattice columns are all one-time investment, even if they are only treated as waste materials after recycling, they cannot be reused, which is not conducive to low-carbon environmental protection
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[0022] Below in conjunction with specific embodiment the present invention is specifically described as follows: figure 1 As shown in the cross-sectional diagram of the composite pile body, the steel-concrete composite pile that can be disassembled in sections under load and can be reused includes the lower reinforced concrete pile body 1 and the upper steel box structure pile body 2, and the upper steel box structure pile body 2. A pile body with a load-bearing section is formed by connecting and combining several unit steel boxes 3 through connectors 9. Such as figure 2 As shown in the schematic diagram of unit steel box combination, the steel box structure pile body 2 is divided into two symmetrical halves of semi-arc-shaped unit steel box panels 6 in the transverse section as the load-bearing surface of the pile top block. Such as image 3 , 4 As shown in the dismantling schematic diagram of the composite pile under load, the pile body 2 of the steel box structure is d...
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Disclosed are a reusable reinforced concrete composite pile available for on-load segmental disassembly and a construction method of the reusable reinforced concrete composite pile available for on-load segmental disassembly. The reusable reinforced concrete composite pile comprises a lower reinforced concrete pile body and an upper steel box structured pile body. The upper steel box structured pile body is composed of unit steel boxes. Segmental alternate stressing of a bearing face of the top unit steel box is realized by the aid of two jack sets, so that the pile body can be segmentally disassembled under the continuous on-load stressed condition, and variability of top load stress elevation is realized. The upper steel box combined pile body is connected through bolts under protection, so that disassembly and reuse of steel box units are facilitated.
Description
technical field [0001] The invention relates to the field of building structure construction. In particular, a combined pile body structure for providing vertical bearing capacity. The combined pile can be alternately stressed in blocks under continuous loading and stress, disassembled in sections, and can be reused, which is conducive to low-carbon environmental protection. . Background technique [0002] During the construction of the foundation pit, temporary piles are used to provide vertical bearing capacity for the large-load operation platforms necessary for some projects, which need to be completed before the excavation of the earthwork, and the elevation is adjusted with the excavation of the earthwork, and removed after completion. Based on the existing construction method, it can only be set repeatedly, which leads to an increase in cost and a long construction period; the upper steel structure of the temporary steel-concrete composite pile used in the existing c...
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IPC IPC(8): E02D5/48
Inventor 张琨
Owner CHINA CONSTR THIRD ENG BUREAU GRP CO LTD