| With the rapid development of economy construction, the demand for high-rise buildings and structures have been increased in cities, the application of pile foundation has been becomed more and more widely.Especially the static pile, it has the advantage of easy guarantee pile body quality, quick construction efficiency, no mud, no noise pollution and so on. However the squeezing effect of the static pile was affected by the surrounding environment, resulting in the deformation of the surrounding buildings and the failure of the pipeline. Therefore, it was of great engineering significance to estimate the squeezing effect of static pressure pile.This paper studied the soil effect of submerged piles through model experiment and particle image Veloeimetry technology, which mainly includes the following tasks:(1) This paper introduced the PIV technology and its application in geotechnical engineering, and analyzed the influence of the pile,surrounding buildings , pipelines in the construction of static pile;(2) The laboratory model test consists of single pile and group piles, among group piles are divided into two design schemes —the different pile space and the different construction sequence. The images taken during the experiment were processed by the PIV technology,analyzing the change of lateral displacement of the soil in the pile;(3) For single pile, through the model test to analyze the extrusion effect can obtain the variation of lateral displacement of single pile in the whole process of sinking pile, and derive the safety distance of pile and surrounding pipeline .(4) The group piles mainly study the influence of the reinforcement blocking effect on the variation law of soil displacement,for the different pile space, it can be found that the reinforcement blocking effect can effectively reduce the displacement of the sinking pile, and obtain the reasonable distance between the piles, proposed the reasonable group pile space. For the different pile sequence, according to the law of the displacement of the soil between the blocking effect and the pile, it can be known that the pile sequence of the jumping method was more reasonable for the pile driving in turn, and more advantageous to application in the actual project. |
