A basic processing method of a stone -throwing sea bed ground steel pipe pile pile
A treatment method and technology of steel pipe piles, which can be applied to infrastructure engineering, caissons, buildings, etc., and can solve problems such as poor economy, long construction period, and high cost of riprap seabed foundation treatment
Active Publication Date: 2020-10-27
CHINA CONSTR SIXTH ENG BUREAU CIVILENG +1
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Problems solved by technology
The cost of treating the riprap seabed foundation with this patented technology is too high, the construction period is too long, and the economy is poor
Method used
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Embodiment 1
[0068] A method for treating the steel pipe pile foundation of the riprap seabed foundation of the present invention comprises the following steps:
[0069] (1) Use a pontoon-type pile driver to drive multiple sand piles 1 on the seabed at the design position of the sand piles, do riprap foundation 2 on the top surface of all sand piles 1 and level it, and install prefabricated sand piles 2 on top of the riprap foundation 2. Reinforced concrete caisson 3, and adjust the plane position coordinate error of the bottom surface of prefabricated reinforced concrete caisson 3 within 100mm, adjust the top elevation error of prefabricated reinforced concrete caisson 3 within 100mm;
[0070] (2) Carry out abutment 4 construction on the described prefabricated reinforced concrete caisson 3 and on the left side of the left beam end connecting the first span Bailey beam 6-1, and the construction of the abutment 4 includes: Steel structure retaining wall 4-4 is installed at the position 200...
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The invention discloses a method for treating a steel pipe pile foundation on a riprap seabed foundation. The method comprises the following steps: (1) a plurality of sand piles are driven into a seabed on the sand pile design position through a floating pontoon type pile driver, the riprap foundation is treated and levelled on the top faces of all the sand piles, and prefabricated steel bar concrete caisson is mounted on the riprap foundation; (2) a bridge abutment is constructed on the position, on the left side of the left beam end of a connected primary span Bailey beam, on the prefabricated steel bar concrete caisson; (3) the primary span Bailey beam and a bridge deck structure are mounted; (4) three steel pipe piles are subjected to testing driving within the riprap foundation bed range on the right side of the prefabricated steel bar concrete caisson through a crane; (5) steel pipe piles are erected on the outer sides of the three steel pipe piles subjected to testing driving; and (6) a stress system is converted. By adopting the method, the purpose of successful crossing when the riprap foundation affects pipe pile sinking is achieved.
Description
technical field [0001] The invention relates to the field of steel pipe pile foundation construction, in particular to a steel pipe pile construction method in case of riprap or other obstacles. Background technique [0002] Sea-crossing bridges have developed extremely rapidly in recent years, and they have continuously set records for the largest spans and longest bridges, and the construction techniques of sea bridges have also emerged in an endless stream. Since offshore operations are different from land operations, and the working space is limited, at present, offshore steel trestles and steel platforms are mostly used in China to achieve the purpose of offshore construction operations. The structural design of steel trestle bridges is not uncommon, and they are similar with minor differences. Most of the foundations are steel pipe pile foundations, which are driven to the design depth with vibrating hammers to meet the load-bearing requirements. However, the construc...
Claims
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IPC IPC(8): E02D3/08E02D15/10E02D23/00E01D21/00
CPCE01D21/00E02D3/08E02D15/10E02D23/00
Inventor 张凡亮余流李利剑李建辉
Owner CHINA CONSTR SIXTH ENG BUREAU CIVILENG