Construction method for large-diameter tilted socketed pile
A construction method and technology of rock-socketed piles are applied in sheet pile wall, foundation structure engineering, construction and other directions, which can solve problems such as increasing construction difficulty and increasing engineering cost, and achieve the advantages of reducing engineering investment, reducing construction difficulty and huge economic benefits. Effect
Inactive Publication Date: 2006-04-26
GUANGDONG PROVINCE HANGSHENG CONSTR GRP
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Problems solved by technology
If the inclination of the pile is smaller, the corresponding horizontal resistance will be smaller. In design, the horizontal bearing capacity can only be satisfied by increasing the number of piles, which will inevitably increase the difficulty of construction and increase the cost of the project.
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[0016] Refer to the attached figure 1 , and examples in actual engineering, further describe the construction method of a large-diameter inclined rock-socketed pile disclosed by the present invention, but it does not constitute any limitation to the present invention.
[0017] After multiple comparisons, it was decided to select the "Nanhai Petrochemical Donglian Wharf Project" undertaken by the applicant as an application project of this construction technology as an embodiment of the present invention.
[0018] Nanhai Petrochemical Donglian Wharf Project is an oil pipeline layout and berthing wharf for Shell Petroleum Corporation in the South China Sea. The design scale is 50,000 tons, with a total of three berths. The axis of the wharf is 360 meters long. There are two types of steel pipe piles, 800mm and 1000mm in diameter, and the pile length is 27-36 meters. D100 type hammer is used for pile sinking, and the standard for hammer collection is: the penetration of the last...
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The invention discloses a big diameter oblique rock-insert-stake construction method, which comprises the following steps: (1) remodeling common engineering driller to reach the maximum inclination of rock-insert-stake at 70 deg and the diameter of stake body between 80 and 150 cm; (2) erecting door frame and host machine chassis according to the designed gradient; (3) starting to enter the drill after examining the inclination without false; (4) clearing the hole and deslagging; (5) putting the bar cage; (6) pouring the concrete. The method solves the problem of present inefficient technique that the gradient is limited and the diameter is short, which concludes the following characters: convenient construction, low fabrication cost and rapid construction speed.
Description
technical field [0001] The invention relates to a pile foundation engineering construction method, in particular to the construction method of large-diameter oblique rock-socketed piles in highway bridges, port wharves and other projects. Background technique [0002] In the structural design of highway bridges, ports and wharves, in addition to the requirements of vertical loads, the requirements of horizontal loads must also be met. In terms of vertical load structure design, there are already very mature design theories and construction techniques, while in the aspect of horizontal load structure design, although there are relatively mature design theories, the actual construction technology is relatively lacking. [0003] In the two major engineering structures of bridges and wharves, rock-socketed pile technology is often used to meet the requirements of horizontal bearing capacity. Rock-socketed piles are one of the more commonly used pile foundation projects, mainly ...
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IPC IPC(8): E02D5/36
Inventor 郑维武王炜谭世森蒋雪琴赵之顺何文聪
Owner GUANGDONG PROVINCE HANGSHENG CONSTR GRP