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Offshore wind power single pile foundation horizontal bearing capacity test reaction device and its construction method

A technology of horizontal bearing capacity and single pile foundation, which is applied in foundation structure test, foundation structure engineering, construction, etc., can solve the problems that cannot meet the test reaction force of large-diameter piles, and achieve shortened test time, low requirements and low cost Effect

Active Publication Date: 2017-07-28
POWERCHINA HUADONG ENG COPORATION LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing traditional test methods can no longer meet the test reaction force required by large-diameter piles, so it is necessary to find a new and feasible test method for the horizontal bearing capacity of single piles.

Method used

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  • Offshore wind power single pile foundation horizontal bearing capacity test reaction device and its construction method
  • Offshore wind power single pile foundation horizontal bearing capacity test reaction device and its construction method
  • Offshore wind power single pile foundation horizontal bearing capacity test reaction device and its construction method

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Embodiment Construction

[0024] This embodiment is an offshore wind power single pile foundation horizontal bearing capacity test reaction device and its construction method, such as figure 2 As shown, the device includes a test pile 1 driven into the seabed surface to the bearing layer to obtain good stability, and a reaction pile 3 is driven obliquely near the test pile 1, and the test pile 1 and the reaction pile The steel box girder assembly 2 is horizontally installed between the upper ends of the 3, and the operating platform 5 is installed on the top of the test pile 1 and the reaction pile 3, the steel box girder assembly 2 and the hydraulic jack system installed on the top of the reaction pile 3 6 jacks contact and tighten. Among them, the top of the test pile 1 is connected with a lower flange 1-1, and the operating platform 5 is set under the lower flange 1-1; the steel box girder assembly 2 is composed of a horizontal beam 2-1, a vertical anchorage section 2-2 and an upper The flange 2-3...

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Abstract

The invention relates to an offshore wind power generation mono-pile foundation horizontal bearing capacity test counterforce device and a construction method thereof. The offshore wind power generation mono-pile foundation horizontal bearing capacity test counterforce device and the construction method thereof are simple in operation, obvious in effects, low in requirements on offshore testing equipment and capable of saving the cost. According to the technical scheme, the offshore wind power generation mono-pile foundation horizontal bearing capacity test counterforce device comprises a test pile driven into the seabed; the head portion of the test pile is provided with a lower flange; a counterforce pile is obliquely driven into the seabed near to the test pile, and the upper end of the counterforce pile is provided with a hydraulic jack system; a steel box girder module is connected between the upper end of the test pile and the upper end of the counterforce pile and composed of a horizontal beam, a vertical anchoring section and an upper flange, wherein the horizontal beam is a section of variable-diameter rectangular cavity, one end of the horizontal beam penetrates the circumferential surface of the vertical anchoring section with the diameter identical to that of the head portion of the test pile, the vertical anchoring section is provided with the upper flange, and the other end of the horizontal beam is a free end abutting against a hydraulic jack.

Description

technical field [0001] The invention relates to a horizontal bearing capacity test reaction device for offshore wind power single pile foundations and a construction method thereof, especially for horizontal anti-overturning single piles with large-scale offshore wind power pile foundations and large loads, and is suitable for marine engineering fields such as offshore wind power generation. Background technique [0002] Offshore wind power has the characteristics of abundant resources, high utilization hours of power generation, cleanness and environmental protection, and is suitable for large-scale development. In recent years, European and American countries have shifted the focus of wind power development to the sea. development path. [0003] With the improvement of the level of offshore wind power construction, the capacity of wind turbines is also increasing, and the requirements for structural safety characteristics are getting higher and higher, especially for the b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D33/00
CPCE02D33/00
Inventor 孙杏建王永发方滔陈德春俞华锋黄春林贾献林毛愉菁郭士杰陈金军俞琨
Owner POWERCHINA HUADONG ENG COPORATION LTD
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