Analysis of Influences Caused by Cantilever Pile-Supported Pit Excavation towards Adjacent Buried Pipe Lines

2018 2nd International Workshop on Renewable Energy and Development

能源学;经济学

Liu, Wensheng^1 ; Xue, Dinglong^1 ; Yuan, Ji^2

School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing

100083, China^1

China Building Technique Group Co., Ltd, Beijing

100013, China^2

关键词: Cantilever pile;    Center distance;    Foundation pit excavations;    Foundation pits;    Horizontal and vertical displacement;    Horizontal displacements;    Pit excavation;    Vertical displacements;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/153/5/052028/pdf
DOI  :  10.1088/1755-1315/153/5/052028

来源: IOP

【 摘 要 】

Foundation pit excavation adopts a widely used method in real projects - cantilever pile supporting, which has the advantages of easy construction, convenience and low cost, etc. The writers use MIDAS GTS software to build the 3D finite unit model to analyze the influences of such facts as excavation step, pipe diameter, center distance of pile. The conclusion shows: The maximum horizontal and vertical displacement of pipelines in the corner of foundation pit is about 1/2 of its center. The pipeline's diameter increases from 0.6m to 1.2m. The horizontal displacement changes little, but the vertical displacement of pipeline is reduced to half of the original.