Comparative Analysis of Foundation Selection and Foundation self-cost for Mechanized Construction of Transmission Lines

DOI

10.2991/978-94-6239-600-5_13How to use a DOI?

Keywords

Transmission line; mechanized construction; foundation selection; foundation self-cost

Abstract

To investigate foundation selection for mechanized transmission line construction, a technical and economic comparison was conducted for swampy, flat, hilly, and mountainous terrains. Key findings include: (1) Swampy areas: Cast-in-place piles are recommended; spread foundations are feasible but less economical at higher loads. (2) Flat terrain: Spread foundations are more cost-effective (10%–22% cheaper) than mechanically excavated piles when groundwater is deep, but cast-in-place piles are preferred for shallow groundwater or high loads. (3) Hilly areas: Thinner overburden improves the economy of rock anchor foundations. For low loads, micro-piles and rock anchors are cost-effective; for high loads, mechanically excavated piles are better. (4) Mountainous areas: Rock anchors suit thin overburden (≤1 m) with bedrock Grades I–IV; micro-piles fit thick overburden or Grade V rock. For hard rock (>60 MPa), rock anchors or micro-piles are viable, but mechanically excavated piles are preferred when accessible.

Copyright

© 2026 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.

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TY  - CONF
AU  - Guoxiong Xie
AU  - Jiankun Hua
AU  - Wei Ye
AU  - Qi Wu
AU  - Ke Ju
AU  - Wei Chen
PY  - 2026
DA  - 2026/02/26
TI  - Comparative Analysis of Foundation Selection and Foundation self-cost for Mechanized Construction of Transmission Lines
BT  - Proceedings of the 2025 8th International Conference on Civil Architecture, Hydropower and Engineering Management (CAHEM 2025)
PB  - Atlantis Press
SP  - 120
EP  - 132
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6239-600-5_13
DO  - 10.2991/978-94-6239-600-5_13
ID  - Xie2026
ER  -