Analysis of Influencing Factors on Internal Forces of Large-diameter Jacking Pipe Structures in Composite Formations
- DOI
- 10.2991/978-94-6463-398-6_35How to use a DOI?
- Keywords
- composite strata; soil lateral pressure; electric power tunnel; segment structure; influence law
- Abstract
The design of the existing top pipe pipeline structure adopts a plane strain model and assumes that the pipe circumference is a homogeneous foundation soil. By selecting typical geological conditions for internal force calculation and reinforcement of the pipeline structure, if the established rock and soil physical and mechanical parameters in the engineering design are different from the actual situation, that may cause engineering quality problems. Based on a large-diameter pipe jacking project in a composite formation, the load structure method and the formation structure method were used to analyze the variation law of the internal force of the pipe joint under different geological conditions on the pipe sidewall. The results showed that the better the physical and mechanical parameters of the soil on the pipe side and the lower the groundwater level, the greater the calculated internal force of the pipes. When the top of the pipe is covered with backfill soil, the greater the formation loss rate, the greater the inner force of the jacking pipe structures. During construction, the formation loss rate should be strictly controlled to ensure the safety of the pipeline structure.
- Copyright
- © 2024 The Author(s)
- Open Access
- Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.
Cite this article
TY - CONF AU - Bin Zhang AU - Xiaoxiang Chen AU - Jianwu Gong PY - 2024 DA - 2024/04/24 TI - Analysis of Influencing Factors on Internal Forces of Large-diameter Jacking Pipe Structures in Composite Formations BT - Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023) PB - Atlantis Press SP - 352 EP - 363 SN - 2589-4943 UR - https://doi.org/10.2991/978-94-6463-398-6_35 DO - 10.2991/978-94-6463-398-6_35 ID - Zhang2024 ER -