文章基本信息

标题：Disturbance effect analysis of pipe jacking construction based on failure approach index
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作者：Geng Liu ; Zhengchun Yang ; Huayan Yao 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2019
卷号：295
页码：1-8
DOI：10.1051/matecconf/201929503006
语种：English
出版社：EDP Sciences
摘要：In order to evaluate the influence of pipe jacking construction process on ground subsidence and surrounding buildings, the numerical simulation of the construction process was carried out by FLAC3D, and the failure approach index (FAI) of the rock and soil around the pipeline was calculated to describe quantitatively their risk and damage state. The numerical results show that the final settlements of the buildings around the pipeline are less than the buildings' safety control values. The rock or soil mass within 0.8 times of the pipe diameter are in the excavation damage zone and disturbance zone (0.8≤FAI≤1.3), while outside 0.8 times of the pipe diameter are basically undisturbed (FAI≤0.8).