自承式雙排鋼版樁工法檔土開挖行為探討

Study of the Behavior of Self-Stand Two-Row Sheet Piles used in Excavation

陳厚銘(Hou-Ming Chen)

《地工技術》 75期 (1999/10) Pp. 41-48

https://doi.org/10.30140/SG.199910.0004

摘要

本文以兩階段斜坡明挖（GL.+0 ～ -6.5m）配合雙排鋼版樁自承工法（GL. -6.5 ～ -13.5m）之實際開挖試驗案例，根據開挖期間之監測及觀察結果，探討在開挖行為下自承式雙排鋼版樁擋土措施其勁度及變形行為。該試驗案例最後因鋼版樁變形量過大，而改採架設內支撐系統以完成開挖作業，但仍期望本試驗案例之探討，可供後續相關研究及應用之參考。

關鍵字

鋼版樁 ； 自承式擋土 ； 開挖穩定性 ； 拱效應 ； 應變諧合

並列摘要

A case study of slope open-cut and self-stand two-row sheet piles used in excavation is presented in this paper. The involving stiffness and deformation behaviors of self-stand two-row sheet piles during excavation are interpreted and summarized in this paper based on the data resulting from fied monitoring and observation. Although the measured deflections of sheet piles in-situ are more larger than estimation and braced system is adopted to finish excavation finally. We still expect to have some help in understanding and further research of this technique.

並列關鍵字

sheet pile ； self-stand retaining excavation ； stability of excavation ； arch effect ； strain compatibility