Construction method for static pressure prestressed pipe pile applied to sea-filling geology

A technology of prestressed pipe piles and construction methods, which is applied in the direction of sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of hard texture of pipe pile rock filling layer, uneven distribution of rock mass elevation, poor construction quality, etc. Achieve the effects of small vibration, shortening the construction period and solving construction difficulties

Inactive Publication Date: 2016-01-13
THE FIRST CONSTR ENG COMPANY LTD OF CHINA CONSTR SECOND ENG BUREAU +1
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing pipe pile construction method for complex reclamation geology cannot well overcome the technical problems of hard rock filling layer, dense and hard foundation rock,

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  • Construction method for static pressure prestressed pipe pile applied to sea-filling geology
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  • Construction method for static pressure prestressed pipe pile applied to sea-filling geology

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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0047] see figure 1 , is the construction method of the hydrostatic prestressed pipe pile that is applied to sea reclamation geology provided by the present invention, and this construction method comprises the following steps:

[0048] Pile test: Prefabricated piles are tested. Pile test means that 10 prefabricated piles are randomly selected for drilling test, and the drilling depth and verticality deviation of the drilling process are recorded in detail during the drilling test to ensure that Drilling qualified rate is above 98%.

[0049] serial number

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Drilling d...

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Abstract

The invention provides a construction method for a static pressure prestressed pipe pile applied to sea-filling geology. The construction method mainly meets pipe pile demands in complex geology environments with rock-filled layer lithology being intermediary weathered and slightly weathered granite, wide distribution range of rock-filled layers, large buried depth, Yanshanian intrusion granite as foundation rocks, compact and hard lithology and uneven distributed rock elevation. According to the provided construction method, a reasonable effective pile foundation construction mode can be selected, and the influence of the geological conditions on basic foundation construction qualities is minimized. Besides, good features of small vibration, low noise and the like of the pipe pile can be guaranteed; the pile breaking rate is greatly reduced in pile foundation infrastructure under ultra-deep rock-filled geology and Yanshanian granite geology conditions; meanwhile, the construction cost is reduced; the construction period is shortened; the problem of difficult pile foundation construction under the complex sea-filled geology condition is completely solved; technological support and references are provided for the pile foundation construction under the similar sea-filled geological conditions.

Description

technical field [0001] The invention relates to a building construction method, in particular to a construction method of a static pressure prestressed pipe pile applied to sea reclamation geology. Background technique [0002] At present, with the continuous development of my country's coastal cities, more and more seaside cities need to expand construction land through reclamation. However, the geology of reclamation land is often more complex. For example, the original geomorphic unit of the reclamation site belongs to the coastal sandy beach, and after artificial land reclamation, the order of geological conditions from top to bottom after geological exploration is: Quaternary artificial filling layer, Quaternary marine-terrestrial interfacial sedimentary layer, Quaternary alluvial deposits, Quaternary residual deposits and Yanshanian intrusive granites. Among them, the rock filling layer has a wide distribution range and deep burial depth. Its layer thickness is 0.5-1...

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Application Information

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IPC IPC(8): E02D7/20E02D5/58E02D5/30
Inventor 刘易郭民罗晓生魏雪琦邰辰龙
Owner THE FIRST CONSTR ENG COMPANY LTD OF CHINA CONSTR SECOND ENG BUREAU
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