Testing method of single-pile multi-directional horizontal bearing force under combined loading effect

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...

AI Technical Summary

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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