Testing device of single pile multidirectional horizontal bearing capacity under composite load

Abstract

The invention relates to a testing device of single pile multidirectional horizontal bearing capacity under composite load. The testing device is characterized in that soil for simulating a site is placed in a model box, a test single pile is buried in the soil, a vertical loading system comprises standing columns, a crossbeam, a lever, a vertical loading device and vertical loading weights, one end of the lever is hinged to a rotary shaft between the two standing columns, the vertical loading device is mounted in the middle of the lever, the vertical loading device is located at the top of the test single pile, and the vertical loading weights are connected to the other end of the lever; a horizontal loading system comprises a horizontal loading pile cap, a fixed pulley, a steel wire rope and weights, the horizontal loading pile cap is mounted on the top surface of the test single pile and connected with one end of the steel wire rope, the steel wire rope penetrates the fixed pulley, the other end of the steel wire rope is connected with the horizontal loading weights, and the fixed pulley is mounted on the model box; a data collecting system comprises a displacement meter which is located on the horizontal loading pile cap and connected with a data collecting instruction. The testing device is good in effect, convenient to operate and low in cost.

Description

technical field [0001] The invention relates to a test device for the multi-directional horizontal bearing capacity of a single pile under the action of a composite load, which is mainly suitable for 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 the 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...

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Problems solved by technology

[0003] In order to overcome the deficiency that the prior art cannot effectively test the multi-directional horizontal bearing capacity of a single pile under complex conditions, the present invention provides a test device for the multi-directional horizontal bearing capacity of a single pile under the action of a composite load with good effect, convenient operation and low cost

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