臺灣博碩士論文加值系統

本研究根據極限平衡理論，利用土塊分析法，假設破壞面為全對數螺線線形，選擇多個破壞面，以試誤法找到每一個破壞面相對應的螺心位置，並將該破壞面之上的土體上諸力對螺心之力矩平衡，求出主動及被動土壓力並以相關之係數表示。文中假設土壤材料為剛-塑性。
本文收集多位學者的土壓力係數與本研究結果作比較。(1)Kaγ ：當背填土坡度為水平時，變化牆背傾角，所得結果與Sokolovski、Caquot & Kerisel等諸位學者的結果均很接近。背填土坡度為10度 時，Φ >20度 時與Chen、Coulomb都很接近，但Φ <20度 時，各學者間並無一致性，δ=0度 時約介於-16.07~2.01%，δ=Φ 時約介於-29.39~3.39%。 (2) Kpγ：隨著Φ 的增加，本文結果與Sokolovski的差異漸增，δ=0度 時約介於2.87~30.73%，δ=Φ 時約介於0.91~27.36%。 (3)Kac ：本文結果與Coulomb較接近，與CP2差異較大。(4) Kpc：本文結果與各學者間較無一致性。

This paper computes active and passive earth pressures based on wedge analysis method. The failure surface is assumed to be a log spiral.
Results from this study show that for level ground surface, the active and passive coefficients of earth pressures are similar to those coefficients obtained by other investigators. The computed coefficients are included as appendix for various sloping earth surface and slanting walls.

中文摘要
英文摘要
本文目錄
表目錄
圖目錄
第一章 緒論1
§1-1 前言1
§1-2 研究目的1
§1-3 研究方法1
第二章 文獻回顧2
§2-1 土壓力種類2
§2-2 計算土壓力的方法3
§2-3 破壞理論4
§2-4 土壓力之相關研究6
§2-4-1 Coulomb楔形土壓力理論6
§2-4-2 Rankine土壓力理論7
§2-4-3 Janbu土壓力計算法8
§2-4-4 Sokolovski土壓力理論8
§2-4-5 Chen的土壓力理論8
第三章 分析理論13
§3-1 土塊理論14
§3-2 對數螺線的性質14
§3-3 主動土壓力係數推導15
§3-3-1 主動自由體之力矩中心16
§3-3-2 主動土壓力係數17
§3-4 被動土壓力係數推導23
§3-4-1 被動自由體之力矩中心23
§3-4-2 被動土壓力係數25
第四章 分析結果與比較41
§4-1 其他學者的土壓力係數41
§4-2 Kaγ 與Kpγ 的比較42
§4-3 Kac與Kpc 的比較50
第五章 結論與建議82
§5-1 結論82
§5-2 建議83
參考文獻95

參考文獻
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