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A method for testing the multi-directional horizontal bearing capacity of single piles under compound loads

A technology of horizontal bearing capacity and test method, which is applied in the test of foundation structure, construction, infrastructure engineering and other directions, can solve the problem of inability to effectively test the multi-directional horizontal bearing capacity of a single pile, and achieves the problem of solving field test problems, long cycle, low cost effect

Active Publication Date: 2019-04-23
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the inadequacy of existing technologies that cannot effectively test the multi-directional horizontal bearing capacity of single piles under complex conditions, the present invention provides a method for testing the multi-directional horizontal bearing capacity of single piles under the action of composite loads with good effect, convenient operation and low cost

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  • A method for testing the multi-directional horizontal bearing capacity of single piles under compound loads
  • A method for testing the multi-directional horizontal bearing capacity of single piles under compound loads
  • A method for testing the multi-directional horizontal bearing capacity of single piles under compound loads

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] refer to Figure 1 to Figure 6 , a method for testing the multi-directional horizontal bearing capacity of single piles under the action of composite loads, the device for realizing the test method includes a model box, a vertical loading system, a horizontal loading system and a data acquisition system, and laying simulation in the model box The soil in the box of the site, the test single pile is embedded in the soil in the box, the vertical loading system includes a column, a beam, a lever, a vertical loader and a vertical loading weight, and one end of the lever is hinged on two On the rotating shaft between the upright columns, a vertical loader is installed in the middle of the lever, and the vertical loader is located at the top of the test single pile, and the other end of the lever is connected with a vertical load weight; the horizontal The loading sy...

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Abstract

The invention discloses a testing method of a single-pile multi-directional horizontal bearing force under combined loading effect. The method comprises the following steps: (1) determining the size of a test pile, soil distribution and thickness; (2) determining a vertical loading value and a loading level, and a horizontal loading value and a loading level; (3) paving soil in layers; (4) determining loading direction and quantity of horizontal loading; (5) mounting horizontal loading pile caps; (6) placing a horizontal loading system; (7) placing a vertical loading system; (8) mounting a data acquisition system; (9) determining multi-directional ultimate bearing capacity of the test pile for single time; (10) detaching the test device and recycling soil samples for testing; (11) determining horizontal bearing capacity characteristic values of a single pile under different vertical loading; (12) determining the horizontal ultimate bearing capacity of the single pile under different vertical loading; The method has a good effect, is convenient to operate and low in cost.

Description

technical field [0001] The invention relates to a method for testing the multi-directional horizontal bearing capacity of a single pile under the action of a composite load, which is mainly applicable to the research on the horizontal bearing capacity of a single pile under the joint action of multi-directional horizontal loads and normal loads in indoor tests, and belongs to pile foundation testing technology field. Background technique [0002] With the sustained and rapid development of the national economy, wind power generation, offshore platforms and high-rise buildings have been built one after another. These buildings are not only affected by vertical loads such as their own weight, but also by horizontal loads such as wind loads, earthquakes and tides. Therefore, , the combined action mode of vertical and horizontal loads (composite load) is more complex in terms of mechanical properties than the action mode of vertical loads or horizontal loads (single load), and i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D33/00
CPCE02D33/00
Inventor 罗战友莫林飞陶燕丽邹宝平李棋祝行
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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