A Method and System for Analyzing Horizontal Dynamic Interaction of Adjacent Pile Foundations

Abstract

The embodiment of the present invention discloses a method and system for analyzing the horizontal dynamic interaction of adjacent pile foundations. and the dynamic balance equation of the active pile body element of the Pasternak foundation model; S3, create the relationship equation between the horizontal vibration displacement and rotation angle of the active pile body and obtain the corresponding displacement general solution; S4, calculate the horizontal vibration displacement of the active pile body, the pile body Bending moment and shear force; S5, calculate the dynamic displacement of passive pile II caused by active pile I and calculate the interaction factor of adjacent piles. The invention can better simulate the constraining effect of the soil around the pile on the pile body; at the same time, considering the horizontal dynamic interaction of adjacent pile foundations under the action of axial force, it can be applied to adjacent pile foundations under the action of complex multidirectional loads The problem of horizontal vibration is more in line with the research on the interaction system of pile groups in practical engineering, and can provide guidance and reference for the dynamic theory of pile foundations.

Description

technical field [0001] The invention relates to the technical field of pile-soil horizontal vibration, in particular to a method and system for analyzing the horizontal dynamic interaction of adjacent pile foundations under the consideration of axial force based on Pasternak foundations. Background technique [0002] At present, when solving the dynamic response problem of pile horizontal vibration, for the convenience of calculation, the soil around the pile is generally simplified to the Winkler model. However, the Winkler foundation model ignores the shear effect of the soil and cannot reflect the continuity of the soil in the vertical layers, making the calculation results not rigorous enough in theory. The Pasternak foundation model considers the shear effect of the foundation soil on the basis of the Winkler model, and the use of the Pasternak foundation model enables the pile-soil coupling system to simulate the actual engineering conditions more reasonably. At prese...

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Problems solved by technology

At present, the technology of pile-soil horizontal vibration using Pasternak foundation model has appeared, but this technology only considers the pile body bending and shear deformation of a single pile, although it can be used for the dynamic response of pile body horizontal vibration under simple harmonic excitation force. solution, but in actual engineering, pile foundations often appear in the form of pile groups

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