Device and method for plate load test capable of simulating side load

Abstract

The invention discloses a device and a method for a plate load test capable of simulating a side load, and belongs to the field of civil engineering. The device comprises a plurality of pressing devices, a first bearing plate and a second bearing plate capable of being nested in the first bearing plate, wherein one pressing device is arranged at a centre of the second bearing plate, the other pressing devices are arranged on the first bearing plate and circumferentially and uniformly distributed about the centre of the second bearing plate, and the first bearing plate is annular or square annular. The invention further discloses an experiment method. The experiment method comprises the steps of S1, nesting the second bearing plate in the first bearing plate; S2, arranging one jack at the centre of the second bearing plate, and uniformly arranging four jacks on the first bearing plate about the centre of the second bearing plate; S3, pressing the first bearing plate stage by stage and maintaining pressure values of the four jacks on the first bearing plate to be a constant value; and S4, observing the condition of deformation of foundation soil with pressures under the effect of a load in each stage.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a plate load test device and method capable of simulating side loads. Background technique [0002] The plate load test is an in-situ test method that applies loads in stages to a rigid bearing plate of a certain size, and observes the deformation of the foundation soil with the pressure under the loads of each level. The test of this method is relatively intuitive and simple, and has been widely used for many years; however, it has the disadvantage that the affected depth range of the test is not more than twice the width (or diameter) of the bearing plate, and it can only reflect the characteristics of the shallow foundation soil. For deep high-rise or super high-rise buildings, the plate load test is usually carried out at the bottom of the pit after the foundation pit has been excavated to the bottom. However, there is still the disadvantage of not being able to consider the...

Images